JP5762134B2 - Sewage filtration device - Google Patents

Description

  The present invention relates to a sewage filtration apparatus, and mainly relates to a sewage filtration apparatus that filters sewage drained from a kitchen sink, a washroom, a bath, a washing machine, and the like.

  It is known that sewage drained from kitchen sinks, washrooms, baths, washing machines, and the like is subjected to purification treatment using a sewage filtration device such as a single purification treatment tank or a combined purification treatment tank. The sewage filtration apparatus described in Patent Literature 1 below has first and second two filtration units, and the first filtration unit removes contaminants in the sewage, and the contaminants are removed. The 1st filtered water is filtered by pumping 1 filtered water to the 2nd filtration part in which the filter material was accommodated with the pump.

JP 2001-327809 A

  According to the prior art of Patent Document 1, the sewage is effectively filtered because the sewage is filtered in two steps: a filtration step for removing contaminants in the sewage and a step of filtering the first filtered water from which the contaminants are removed. Can be filtered. However, the sewage filtration device of Patent Document 1 is forcing the first filtered water into the second filtration part by a pump and filtering the first filtered water through the filtration part. There was a problem that the contact time of water was short and effective filtration of sewage was impossible.

  Further, the sewage filtration apparatus has a complicated piping structure such as the above-described pump, piping for communicating a plurality of filtration tubes, and piping for feeding the first filtrate to the filtration tube via the pump. There has been a problem that manufacturing costs for parts and assembly increase. In addition, there is a problem in that running costs due to electricity costs and maintenance for moving the pump are required, and noise due to pump operation noise and vibration is generated. Moreover, since the filter medium accommodated in the second filter unit is adapted to be fitted and removed by disassembling a plurality of filter cylinders constituting the second filter unit, it is troublesome to replace the filter medium. there were.

  This invention makes it an example of a subject to cope with such a problem. That is, it is possible to reliably filter sewage, to facilitate replacement and inspection of filter media, to reduce manufacturing cost and running cost, and to reduce sewage reliable and low cost by reducing manufacturing cost and running cost. It is an object of the present invention that it can be achieved and that noise during filtration of sewage can be reduced.

  In order to achieve such an object, a sewage filtration apparatus according to the present invention has at least the following configuration.

A first filtering unit that filters sewage; and a second filtering unit that is downstream of the first filtering unit and that receives and filters the sewage flowing out after being filtered by the first filtering unit. The section includes at least a first filtration container that contains a holding material that holds contaminants contained in the sewage, and a first filtration container container that accommodates the first filtration container so that it can be inserted and removed freely. The filtration unit is divided into a plurality of second filtration containers that contain a filtering material for filtering sewage, and a plurality of filtrations that are divided from the upstream side to the downstream side and that allow the second filtration container to be inserted and removed freely and store sewage. a second filtration cassette holder having a space communicated with the filtration space between, and a passing Minakuchi moving in the filtration space adjacent the pooled sewage downstream, said first filter container housing Body and the second filtration container container are wood Formed with, the wood is characterized by comprising the soil groaning.

  By having such characteristics, the present invention has the following effects. That is, the first filtration unit holds contaminants while flowing sewage from the first filtration unit to the second filtration unit without requiring complicated piping and pumps, and includes a plurality of second filtration containers. Since the filtration is performed slowly by the two filtration sections, the filthy water can be reliably filtered. Moreover, since the 1st filtration container and the 2nd filtration container can be attached or detached, replacement | exchange and inspection of a filter medium can be performed easily. Therefore, since manufacturing cost and running cost can be reduced, reliable filtration of sewage can be achieved at low cost. In addition, since sewage can be filtered without using a pump, noise during sewage filtration can be reduced.

Sectional drawing which shows 1st Embodiment of the sewage filtration apparatus which concerns on this invention. The top view of the top view of FIG. 1 is shown. (3)-(3) sectional view taken on the line of FIG. (4)-(4) sectional view taken on the line of FIG. Sectional drawing which shows 2nd Embodiment of the sewage filtration apparatus which concerns on this invention. FIG. 6 is a sectional view taken along line (6)-(6) in FIG. 5. FIG. 6 is a sectional view taken along line (7)-(7) in FIG. 5. Sectional drawing which shows 3rd Embodiment of the sewage filtration apparatus which concerns on this invention. Sectional drawing which shows 4th Embodiment of the sewage filtration apparatus which concerns on this invention. Sectional drawing which shows 5th Embodiment of the sewage filtration apparatus which concerns on this invention.

  The holding material referred to in the present invention may be any material that holds impurities such as leftover rice, hair, dirt, scale, etc., for example, charcoal, zeolite, gravel, pumice, sand, sawdust A natural material such as a wood chip, which has a function of filtering wastewater and a function of decomposing while holding the above-mentioned impurities is preferable. Moreover, it is a filter-like thing formed in a box shape, a cage shape, a plate shape or the like having fine meshes and fine holes, and retains impurities, but has a function of filtering water and a function of decomposing impurities. There may be no holding material.

  In addition, the filtering material referred to in the present invention is not limited as long as it has a function of filtering water, but for example, those made of natural materials such as charcoal, zeolite, gravel, pumice, sand, sawdust, and wood chips are preferable. .

  In the sewage filtration apparatus of the present invention, it is preferable that the water inlet is provided so as to pour sewage into the upper part of the second filtration container. As a specific configuration of this water flow port, for example, a lower side water flow port provided on the upstream side, an upper side water flow port provided above and below the lower side water flow port, and a lower side water flow port And a water channel communicating with the upper side water inlet. Moreover, it has the lower side water inlet which pours sewage into the lower part of a 2nd filtration container, and the upper side water inlet which pours sewage into the upper part of a 2nd filtration container, These both water outlets were provided alternately from the upstream to the downstream. A configuration is mentioned.

  In the sewage filtration apparatus of the present invention, it is preferable that the water inlet is provided so that sewage flows into the second filtration container from the lower part of the second filtration container. As a specific configuration of this water flow port, for example, an upper side water flow port provided on the upstream side, a lower side water flow port provided below and below the upper side water flow port, and an upper side water flow port And a water channel that communicates with the lower side water inlet.

  Moreover, it is preferable that the sewage filtration apparatus of this invention sets the lower end part of an upper side water flow inlet so that a downstream may become a position lower than an upstream.

  Further, the sewage filtration apparatus of the present invention is provided with a drainage part for draining filtered filtrated water outside the filtration space in the filtration space on the most downstream side, and this drainage part may be provided below the upper side water inlet. preferable.

  Moreover, it is preferable to accommodate the sewage filtration apparatus of this invention so that the whole 2nd filtration container may be submerged.

  Moreover, in the sewage filtration apparatus of the present invention, it is preferable that the first filtration container container and the second filtration container container are formed using wood, and further, this wood contains a soil-embedded tree. The wood containing the buried soil has a high resin content and is preferably waterproof, insect-proof, and antibacterial. Examples of such wood include cedar, pine, hinoki and kayak.

  Moreover, it is preferable that the sewage filtration apparatus of this invention is embed | buried except for or including the said 1st filtration container accommodating body.

  Hereinafter, an embodiment of a sewage filtration device according to the present invention will be described with reference to the drawings. 1 to 4 show a first embodiment, FIGS. 5 to 7 show a second embodiment, FIG. 8 shows a third embodiment, FIG. 9 shows a fourth embodiment, FIG. 10 shows a fifth embodiment.

  The sewage filtration apparatus A according to the first embodiment has a configuration in which all of the sewage filtration apparatus A is embedded in the soil (not shown), and the first filtration unit 1 disposed on the most upstream side, The first filtration unit 1 and the second filtration unit 1 are provided with a second filtration unit 2 disposed on the downstream side of the first filtration unit 1, and a drain pipe B from a house (not shown) is piped to the first filtration unit 1. The filtered water F filtered by the part 2 is drained into the soil from the most downstream side of the second filtering part 2.

  The 1st filtration part 1 accommodates the holding material D which has a function which decomposes | disassembles the filter medium C and a foreign material (not shown) so that insertion / extraction is possible, and is provided with the 1st filtration provided with the passage port 100 which lets the waste water E pass through. A container 1A, a first filtration container housing 10 that houses the first filtration container 1A, and a guide portion 1B that is provided in the first filtration container housing 10 and is piped to the drain pipe B are provided.

  The first filtration container 1A has a large number of meshes formed by knitting wire or the like subjected to rust prevention processing, and is an upper (upstream side) open-type bowl-shaped one formed as a passage port 100. The upper opening 11 is arranged so as to face the drain outlet B10 of the guide 1B. 1 and 2, the holding plates 12 placed on the two holding rods 10 </ b> B provided in the first filtration container container 10 protrude outward on the left and right edges of the opening portion 11. Is provided. In addition, a handle 13 for carrying the first filtration container 1A is provided on the upper surface of the holding plate 12. In such a first filtration container 1A, a filter medium C is accommodated below, and a holding material D is accommodated so as to be laminated on the filter medium C.

  In addition, 1 A of 1st filtration containers are not restricted to the illustrated form, For example, it is good also as an upper open type bowl-shaped molded article which used many holes as the passage port 100 (not shown).

  The first filtration container container 10 is a box-like one whose lower part (downstream side) is opened, and a guide part 1B is attached to the center part of the top plate 16 that closes the upper open part 15 of the side wall 14 that surrounds the four sides. Has been. On the inner side of the side wall 14, a holding rod 10B is fixedly attached. An interval between the two holding rods 10B is an interval through which the first filtration container 1A can pass and an interval at which the holding plate 12 can be placed. The top plate 16 is detachably attached to the side wall 14 with bolts and nuts (not shown) or the like. By removing the top plate 16, the upper opening 15 is opened, and the first filtration container 1A. Can be removed.

  The first filtration container container 10 has a high resin content and is made of wood, such as cedar, pine, cypress, and kayak, which have waterproofness, insectproofing, and antibacterial properties, and buried soil.

  The guide portion 1B is a tubular body having the same diameter as the drainage pipe B, and is detachably connected to the water distribution pipe B via a connector (not shown).

  According to such a 1st filtration part 1, the sewage E guided to the 1st filtration container accommodating body 10 via the guide part 1B flows in into the 1st filtration container 1A, and contacts the filter medium C and the holding material D However, it passes through the first filtration unit 1 and flows into the second filtration unit 2. At this time, the sewage E is filtered by coming into contact with the filtering material C and the holding material D, and impurities contained in the sewage E are held so as to be caught by the filtering material C and the holding material D. Accordingly, the sewage E that passes through the first filtration container 1A and flows into the second filtration unit 2 has a reduced content of impurities and is in a state of being filtered to some extent. Moreover, the foreign substance hold | maintained by the holding material D can be decomposed | disassembled.

  The replacement of the filter medium C and the holding material D can be performed by removing the first filtration container 1A and replacing the filter medium C and the holding material D. In addition, the retaining material D laminated on the top of the filter medium C retains most of the contaminants contained in the sewage E and decomposes the retained contaminants, thereby preventing the contaminants from being contaminated by the contaminants. The filtration function of the filter medium C can be maintained for a long period of time. Therefore, the replacement work of the filter medium C and the holding material D can be easily performed, and the number of times of replacement of the filter medium C and the hold material D can be reduced, thereby reducing the material cost, the replacement work cost, and the like. Can do.

  The second filtration unit 2 accommodates the filter medium C so that it can be taken in and out, and includes five second filtration containers 2 </ b> A to 2 </ b> E provided with a passage port 200 through which the sewage E passes, and 5 from the upstream side to the downstream side. A second filtration container container 20 having five filtration spaces 3A to 3E which are divided and accommodates the second filtration containers 2A to 2E so as to be freely put in and out, a water flow port 3 communicating with the filtration spaces 3A to 3E, And a drainage portion 3G provided in a drainage space 3F secured on the downstream side.

  The second filtration containers 2A to 2E are upper-opened bowl-shaped molded products having a large number of holes as passage ports 200, and are all formed in the same size and shape. Further, a leg portion 202 is provided on the bottom portion 201. In this embodiment, as the filter medium C accommodated in the second filtration containers 2A to 2E, the second filtration container 2A is wood chips, the second filtration container 2B is sawdust, the second filtration containers 2C and 2D are charcoal, and the second filtration The container 2E is sand. Further, the second filtration container 2A is accommodated in the filtration space 3A on the most upstream side, and is accommodated in the filtration spaces 3B to 3E arranged in order from the upstream side to the downstream side in order from the second filtration container 2B.

  In addition, 2nd filtration container 2A-2E is not restricted to the illustrated form, For example, we knitted the wire etc. which gave rust prevention processing like 1st filtration container 1A, and have many meshes, This mesh It is good also as a top open type bowl-shaped form formed as the passage opening 200 (not shown).

  The second filtration container container 20 is a box-like one in which the upper open portion 23 of the side wall 22 that surrounds the four sides is closed with a top plate 24 and the portion of the top plate 24 facing the filtration space 3A is opened. The 2nd filtration container container 20 and the 1st filtration container container 10 are connected by the state which made the open part 25 of the top plate 24, and the lower open part 17 in the 1st filtration container container 10 face each other. The sewage E filtered in the first filtration container 1A flows into the second filtration container 2A.

  The top plate 24 is divided so that the upper open part 23 can be opened independently for each of the filtration spaces 3A to 3E and the drainage space 3F, and each of the divided top plates 24 is bolts and nuts ( (Not shown) or the like, and is detachably attached. The top opening 24 is opened by removing the top plate 24, and the second filtration containers 2A to 2E can be attached and detached.

  The first filtration unit 1 and the second filtration unit 2 are configured such that the side wall 14 of the first filtration unit 1 is fitted to a top plate 24 on the filtration space 3A with a fastening member (not shown) such as a bolt or a nut or a fitting. It is detachably integrated by detachably attaching using a fitting means (not shown).

  The filtration spaces 3 </ b> A to 3 </ b> E are partitioned by a partition portion 4 including a pair of partition plates 4 </ b> A and 4 </ b> B, and are communicated by a water flow port 3 provided in the partition portion 4. The filtration spaces 3 </ b> A to 3 </ b> E are configured in independent container shapes by the side wall 22, the partition portion 4, and the bottom plate 26 of the second filtration container container 20 so that the sewage E is stored, and the second filtration containers 2 </ b> A to 2 </ b> A to 2 </ b> A. 2E is adapted to be accommodated.

  The water flow port 3 is between the lower side water flow port 31 provided at the lower end of the upstream partition plate 4A, the upper side water flow port 32 provided at the upper end of the downstream side partition plate 4B, and the partition plates 4A, 4B. In addition, a water channel 33 is provided so as to communicate the lower side water inlet 31 and the upper side water inlet 32.

  As the water storage amount of the sewage E flowing into the filtration space 3A increases, the sewage E flows into the water channel 33 from the lower water flow port 31 and the water channel 33 passes through the upper water flow channel 32. The amount of overflow of the sewage E rising up the water channel 33 as the amount of stored sewage E in the filtration space 3A exceeds the upper side water inlet 32 is further increased. It can be guided so as to flow into the filtration space 3 </ b> B beyond the upper side water inlet 32.

  At this time, the sewage E stored in the filtration space 3A is gradually stored from below and filtered in contact with the filter medium C accommodated in the second filtration container 2A until the height exceeds the upper water inlet 32. Therefore, the sewage E that rises up the water channel 33 and overflows and flows into the filtration space 3B becomes the most purified sewage E in the sewage E of the filtration space 3A. Hereinafter, from the filtration space 3B to the filtration space 3E, in the same manner as the filtration space A, the inflowing sewage E is filtered while being stored, and the sewage E is sequentially purified by overflowing and finally filtered in the filtration space 3E. The wastewater E can be drained into the soil from the drainage space 3F through the drainage part 3G as filtered water F.

  The downstream side of the filtration space 3E is partitioned by a partition plate 4C, and a drainage space 3F communicating with the filtration space 3E is secured on the downstream side of the partition plate 4C. A lower side water inlet 31 communicating with the filtration space 3E is provided at the lower end of the partition plate 4C, and the filtered water F filtered in the filtration space 3E flows into the drainage space 3F from the lower side water outlet 31. It has become. Filtration water F that has flowed into the drainage space 3F rises as the amount of sewage E stored in the filtration space 3E increases, and as the height exceeds the drainage part 3G, the filtration water rises in the drainage space 3F. The overflow of water F is drained into the soil through the drainage part 3G.

  In this embodiment, the height position of the lower end part 310 (upper end of the partition plate 4B) of the upper side water inlet 32 is set so that the downstream side is lower than the upstream side, and the amount of stored water in the filtration spaces 3B to 3E However, even if the height exceeds the lower end portion 310 of the upper-side water inlet 32 on the downstream side, the sewage E does not flow backward beyond the upper-side water inlet 32 on the upstream side. Further, the height position of the upper end portion of the drainage portion 3G is set to be lower than the height of the lower end portion 310 of the upper-side water inlet 32 on the most downstream side, and the amount of water stored in the filtration space 3E is the drainage portion. Even when the height exceeds the lower end of 3G, the sewage E does not flow backward beyond the upper side water inlet 32 on the upstream side.

  The second filtration container container 20 includes the partition portion 4 as a whole and has a high resin content and is waterproof, insect-proof, and antibacterial, for example, using cedar, pine, cypress, kayak, or other wood and earth buried wood. Configured.

  According to the sewage filtration apparatus A of this embodiment, the sewage E from the drain pipe B is caused to flow into the first filtration container 1A held by the first filtration part 1 via the guide part 1B, and the filtration medium C and the holding material. While filtering by D, it removes by holding the contaminants contained in the sewage E, and allows the sewage E from which the contaminants have been removed to pass into the filtration space 3A on the most upstream side of the second filtration unit 2. be able to. In the 2nd filtration part 2, it is accommodated in 2nd filtration container 2A-2nd filtration container 2E by making the overflowed sewage E flow toward the downstream side, storing water in filtration space 3A-filtration space 3E sequentially. Then, the filtered water F can be drained from the drainage space 3F through the drainage part 3G.

  Therefore, the sewage filtration apparatus A according to the present embodiment causes the sewage E to fall while filtering from the first filtration unit 1 to the second filtration unit 2 and also causes the second filtration unit 2 to overflow while storing the sewage E. Since it is made to filter gradually, drainage can be performed from filtration of the sewage E, without using a pump. Therefore, electric power and fuel required when using a pump can be made unnecessary. In addition, since there is no operation sound or vibration generated when the pump is operated, the sewage E can be silently filtered at a low cost. Moreover, since the sewage E is gradually overflowed from the upstream side to the downstream side and slowly filtered, the sewage E can be reliably filtered.

  Moreover, since the 1st filtration container 1A and 2nd filtration container 2A-2nd filtration container 2E are detachable, replacement | exchange of the filtration material C and the holding material D, 1st filtration container 1A, and 2nd filtration container 2A-2nd. Cleaning and maintenance of the filtration container 2E, cleaning and maintenance of the filtration space 3A to the filtration space 3E, and the like can be easily performed.

  Moreover, since the 1st filtration container accommodating body 10 and the 2nd filtration container accommodating body 20 are comprised using the wood and earth buried wood which have many resin content and have waterproofness, insectproof property, and antibacterial property, they are long-term. Even in the burial process, corrosion, insect erosion, decomposition, and the like of the first filtration container container 10 and the second filtration container container 20 can be suppressed. Moreover, since it is a timber even at the time of disposal, it can be incinerated, or it can be processed into a wood chip or sawdust and reused as a filter medium C or a holding material D.

  Next, the sewage filtration apparatus A ′ according to the second embodiment will be described. The sewage filtration apparatus A ′ according to the present embodiment changes the form of the water passage 3 and the form of the partition part 4 in the sewage filtration apparatus A according to the first embodiment, and is not provided with the drainage space 3F. Except for the form of the water inlet 3, the form of the partition part 4, and the form in which the drainage space 3F is not provided, since it is the same form as the sewage filtration apparatus A, the same symbols are attached to the drawings for the overlapping parts. The description will be omitted.

  In the first filtration container container 10 of the present embodiment, a holding step 10C for placing the holding plate 12 is formed inside the upper end of the side wall 14 instead of the holding rod 10B in the first embodiment. By mounting the holding plate 12 on the holding step portion 10C, the first filtration container 1A is attached in the first filtration container housing 10. And like 1st Embodiment, by removing the top plate 16, the upper open part 15 is open | released and 1 A of 1st filtration containers can be attached or detached.

  The partition part 4 is comprised from the board of 1 sheet, The water flow port 3 is provided in this partition part 4. FIG. The water flow port 3 provided in the partition part 4 which partitions the filtration space 3A and the filtration space 3B is an upper side water flow port 32, and the filtration space 3A and the filtration space 3B communicate with each other at the upper part. The water flow port 3 provided in the partition part 4 which partitions the filtration space 3B and the filtration space 3C is a lower side water flow port 31, and connects the filtration space 3B and the filtration space 3C at the lower part. The water inlet 3 provided in the partition part 4 which partitions the filtration space 3C and the filtration space 3D is an upper side water inlet 32, and the filtration space 3C and the filtration space 3D communicate with each other at the upper part. The water flow port 3 provided in the partition part 4 which partitions the filtration space 3D and the filtration space 3E is a lower side water flow port 31, and connects the filtration space 3D and the filtration space 3E at the lower part. The drainage part 3G is provided at the same height as the upper side water inlet 32.

  According to the sewage filtration apparatus A ′ of the present embodiment, the upper side water inlet 32 and the lower side water outlet 31 are alternately arranged from the upstream side to the downstream side, and therefore the upper side water inlet 32 is removed from the filtration space 3A. The sewage E that overflows flows into the filtration space 3 </ b> B and flows into the filtration space 3 </ b> C through the lower water passage 31. Further, the filtration space 3B and the filtration space 3C are filled with water, and the sewage E overflowing from the upper side water inlet 32 provided in the partition part 4 that partitions the filtration space 3C and the filtration space 3D flows into the filtration space 3D. Then, it flows into the filtration space 3E through the lower side water inlet 31.

  That is, the sewage E that is filtered and overflowed by the filter medium 3C stored in the first filtration container 2A is stored while gradually flowing into the filtration space 3B and the filtration space 3C, and is stored in the second filtration container 2B. The sewage E that is filtered by the filtered filter C and the filter medium C accommodated in the second filter container 2C and overflows from the filter space 3D is stored in water while gradually flowing into the filter space 3D and the filter space 3E. At the same time, since the filtering material C accommodated in the second filtration container 2D and the filtering material C accommodated in the second filtration container 2E are filtered, the sewage E can be slowly and reliably filtered. Then, the filtered water F finally filtered in the filtration space 3D and the filtration space 3E is stored and drained by overflowing the drainage part 3G.

  Therefore, the sewage filtration apparatus A ′ of the present embodiment also has the same operational effects as the sewage filtration apparatus A of the first embodiment, and the water inlet 3 and the partition portion 4 can have a simple structure. .

  Next, the sewage filtration apparatus A ″ of the third embodiment will be described. The sewage filtration apparatus A ″ of the present embodiment is a modification of the form of the water passage 3 in the sewage filtration apparatus A ′ of the second embodiment. Except for the form of the water passage 3, the configuration is the same as that of the sewage filtration device A ′, and therefore, overlapping portions are denoted by the same reference numerals in the drawings and description thereof is omitted.

  The water flow ports 3 are all the upper side water flow ports 32, and the second filtration container 2 </ b> A to the second filtration vessel 2 </ b> A to the second are obtained by overflowing the sewage E toward the downstream side while sequentially storing the sewage E in the filtration spaces 3 </ b> A to 3 </ b> E. 2 The filter medium C accommodated in the filtration container 2E is sequentially contacted and filtered, and the filtered filtered water F is drained from the drainage part 3G.

  Therefore, the sewage filtration apparatus A ″ of the present embodiment also has the same operational effects as the sewage filtration apparatus A of the first embodiment, and the water inlet 3 and the partition portion 4 can have a simpler structure. it can.

  Next, the sewage filtration apparatus A ′ ″ of the fourth embodiment will be described. Similarly to the sewage filtration apparatus A, the sewage filtration apparatus A ′ ″ of the present embodiment sets the height position of the lower end portion 310 of the upper side water inlet 32 so that the downstream side is lower than the upstream side. . Moreover, in the sewage filtration apparatus A ′ ″ of the present embodiment, the filtration space 3B to the filtration space 3E excluding the filtration space 3A are divided into two by the partition plates 34, and the filtration spaces 30B and 31B, the filtration spaces 30C and 31C, Filtration spaces 30D and 31D and filtration spaces 30E and 31E are formed, and the second filtration containers 2A to 2H are accommodated in the filtration spaces 30B, 31B, 30C, 31C, 30D, 31D, 30E, and 31E. In the present embodiment, the second filtration container is not accommodated in the filtration space 3A and is a space for storing the sewage E, but the second filtration container may be accommodated in the filtration space 3A.

  The partition plate 34 is formed with a lower-side water inlet 31, and the lower-side water inlet 31 allows the space between the filtration spaces 30B and 31B, the space between the filtration spaces 30C and 31C, the space between the filtration spaces 30D and 31D, and the filtration space 30E. 31E is communicated.

  The second filtration containers 2A to 2H are arranged with the height position where the filtration spaces 3B to 3E are filled with water at a fixed position in a state where the filtration spaces 3B to 3E are filled with water, and further pass below the bottom 201. The water space S is secured and arranged. Moreover, this 2nd filtration container 2A-2H is provided with the lid | cover 27 which can be opened and closed, and when the 2nd filtration container 2A-2H is submerged to the upper surface, the filter medium which floats on water will be 2nd filtration container 2A-2H. From flowing into the filtration spaces 3B to 3E. Similarly to the second filtration containers 2A to 2H, the lid 27 also has a large number of holes (not shown), and the holes are made to pass through the sewage E (not shown).

  As a configuration for holding the fixed positions of the second filtration containers 2A to 2H, a leg is provided on the bottom 201 of the second filtration containers 2A to 2H, or a base is fixed to the filtration spaces 3B to 3E. The structure which hold | maintains a fixed position by mounting filtration container 2A-2H is mentioned (not shown). In this case, in order to prevent the second filtration containers 2A to 2H from being lifted, a configuration in which the second filtration containers 2A to 2H are pressed from the upper side of the lid 27 or a weight is provided on the second filtration containers 2A to 2H is exemplified. Not shown). Moreover, the structure which latches with respect to 2nd filtration container 2A-2H, or provides a weight in the lid | cover 27 so that the lid | cover 27 may not float up is mentioned (not shown).

  According to the sewage filtration apparatus A ′ ″ of the fourth embodiment, the sewage filtration apparatus A of the first embodiment has the same effect, and the second filtration containers 2A to 2H are submerged to the upper surface. The sewage E stored in the spaces 3B to 3E can be brought into contact with the entire filter medium C accommodated, and the contact time can be increased as compared with the sewage filtration devices A to A ″ described above. Since the two second filtration containers 2A to 2H are accommodated in one filtration space 3B to 3E, respectively, the number of the filtration spaces 3A to 3E is the same as the number of the filtration spaces 3A to 3E. ˜A ″ can contain various kinds of filter media, and the sewage E can be filtered by the various filter media C. Therefore, the sewage filter apparatus A ′ ″ of the present embodiment can more reliably collect the sewage E. It can be filtered.

  Next, the sewage filtration apparatus A ″ ″ of the fifth embodiment will be described. In addition, about the site | part which overlaps with 1st Embodiment-4th Embodiment, description is abbreviate | omitted by attaching | subjecting a same sign. Moreover, the sewage filtration apparatus A ″ ″ of the present embodiment is configured such that the second filtration container is accommodated in the drainage space 3F. Hereinafter, the second filtration container accommodated in the drainage space 3F is used as the second filtration container. A description will be given with reference numeral 2E, and the drainage space 3F will be described as a filtration space 3F ′.

  In the sewage filtration apparatus A ″ ″ of the present embodiment, the water passage 3 is provided so that sewage flows from the lower portions of the second filtration containers 2A to 2E into the second filtration containers 2A to 2E. Further, the sewage filtration apparatus A ″ ″ is configured such that the second filtration containers 2A to 2E are accommodated in the filtration spaces 3B to 3F ′ excluding the filtration space 3A.

  In the sewage filtration apparatus A ″ ″ of the present embodiment, the first filtration unit 1 is not provided, and the first filtration container 1A is arranged in the filtration space 3A. In the upper part of the filtration space 3A, a ring body 18 provided with a guide part 1B piped to the drain pipe B on the side part is provided. The upper part of the ring body 18 is closed with a detachable lid body 19, and the first filtration container 1 </ b> A can be removed from the filtration space 3 </ b> A by removing the lid body 19.

  2nd filtration container 2A-2E of this embodiment becomes a structure similar to 4th Embodiment, and when each filtration space 3B-3F 'is filled with water, the height position which is submerged to the upper surface is set. The fixed position is held, and further, the water passage space S is secured below the bottom 201, and the fixed position is held in the same configuration as in the fourth embodiment.

  The water flow port 3 has an upper water flow port 32 provided at the upper end of the upstream partition plate 4A, and a lower water flow port 31 provided at the lower end of the downstream partition plate 4B. When 3E is full of water, this sewage is caused to flow from the upper side water inlet 32 into the water channel 33, and the water channel 33 is lowered and the filtration space 3B adjacent to the filtration spaces 3A to 3E downstream from the lower side water inlet 31 respectively. It flows out to ~ 3F '.

  The sewage E that flows out and is stored in each of the filtration spaces 3B to 3F ′ gradually increases in water level, so that the second from the lower portions of the second filtration containers 2A to 2E accommodated in the filtration spaces 3B to 3F ′. It is poured into the filtration containers 2A to 2E and filtered.

  That is, the sewage filtration apparatus A ″ ″ moves the sewage E from the upstream filtration space 3A to the most downstream filtration space 3E while storing the sewage E from below, and stores the sewage E stored in the filtration spaces 3B to 3F ′. The sewage E can be filtered as the water level rises.

  This sewage filtration apparatus A ″ ″ promotes aerobic decomposition of contaminants held in the second filtration containers 2A to 2E in the vicinity of the bottom 201 of the second filtration containers 2A to 2E in the filtration spaces 3B to 3F. An air pipe P for feeding the air is provided, and air is sent from the air pipe P into the second filtration containers 2A to 2E by a pump or the like. The air pipe P may be piped in all of the filtration spaces 3A to 3F, or may be piped in a part of the filtration spaces 3A to 3F.

  Therefore, the sewage filtration apparatus A ″ ″ of the present embodiment has the same effects as the sewage filtration apparatus A of the first embodiment, and promotes aerobic decomposition by the air fed from the air pipe P. Therefore, more effective filtration of the sewage E can be performed.

  In addition, this invention is not limited to illustrated embodiment, Implementation by the structure of the range which does not deviate from the content described in each item of a claim is possible.

  For example, in the first to third embodiments, the first filtration container container 10 and the second filtration container container 20 are exemplified as those made of wood and earth-embedded wood, but the present invention is not limited to wood. A metal, a synthetic resin, a fiber reinforced resin, or a combination of these may be used.

  For example, there are sewage filtration apparatuses A to A ″ ″ configured such that the insides of the first filtration container container 10 and the second filtration container container 20 are made of stainless steel, and the outer peripheral wall of the stainless steel is surrounded by a wooden board material. (Not shown). According to such a sewage filtration apparatus A-A '' '', the improvement of the intensity | strength by prevention of the inner corrosion by stainless steel and the combination of stainless steel and a wooden board material can be anticipated.

  As described above, when the outer peripheral wall of stainless steel is surrounded by a wooden board material, a plurality of wooden board materials may be arranged with a gap in the vertical direction of the wall surface, or a plurality of wooden board materials may be arranged without a gap in the vertical direction of the wall surface. (Not shown). Further, a wood board material having the same shape and size as the wall surface may be disposed on the outer peripheral wall of stainless steel (not shown). Further, synthetic resin or fiber reinforced resin may be used instead of stainless steel (not shown).

  The sewage filtration apparatus A to A ″ ″ of the present invention may be configured such that the second filtration container 20 can be divided into two or more in the flowing water direction (left and right direction in FIG. 1). Thus, transportation and storage can be easily performed, and the length in the flowing water direction can be adjusted (not shown).

  Moreover, although the 1st filtration container container 10 and the 2nd filtration container container 20 were illustrated by the form which was embed | buried in the soil, in this invention, the form which embed | buried only the 2nd filtration container container 20, the 1st filtration container The container 10 and the second filtration container container 20 may be placed on the ground without being embedded.

  In addition, the shapes and materials of the first filtration container 1A and the second filtration containers 2A to 2H are not limited to those illustrated, and the filtration medium C and the holding material D can be accommodated, and the inflowing sewage E can pass therethrough. Anything is acceptable. For example, the structure (not shown) which provided the passage port 100 in the 1st filtration container 1A only in the bottom part, and the structure which provided the passage port 200 in the 2nd filtration containers 2A-2H only in the bottom part 201 and the lid | cover 27 may be mentioned. it can.

  Moreover, the number of filtration space 3A-3F and the number of 2nd filtration container 2A-2H are not restricted to the illustrated number, It can increase / decrease arbitrarily.

  Further, the filtered water F from the drainage part 3G is not limited to the form of draining into the soil as illustrated, but the drainage part 3G may be extended with a tubular body and piped to a sewer pipe (not shown). ).

  Further, the air pipe P is not limited to the pipe connected to the sewage filtration apparatus A ″ ″ of the fifth embodiment, but the sewage filtration apparatus A ′ ″ of the first embodiment to the sewage filtration apparatus A ′ ″ of the fourth embodiment. It may be piped (not shown).

  The sewage filtration apparatus A to A ″ ″ of the present invention can also filter sewage containing feces and urine drained from a toilet. In this case, the filtered water F filtered as described above is treated as a sewer pipe. It is preferable to drain the water. When this sewage filtering device A to A ′ ″ is used as a filter for filtering sewage E excluding sewage drained from the toilet, the sewage drained from the toilet is treated with, for example, the decomposition treatment device filed by the present applicant. By decomposing and composting manure contained in attached toilets (Japanese Patent Laid-Open No. 2001-120460) etc., wastewater with a high BOD drained from the toilet can be treated without draining it into the above-mentioned sewer pipe. . Therefore, since the sewage from the home can be cleaned and drained, the burden on the treatment facility such as the sewage purification treatment plant can be reduced.

  Moreover, the sewage filtration apparatus A-A '' '' of this invention can be utilized also as a filtration apparatus which filters the water utilized as clean water.

A: Sewage filtration device A ′: Sewage filtration device A ″: Sewage filtration device A ′ ″: Sewage filtration device A ″ ″: Sewage filtration device 1: First filtration unit 2: Second filtration unit C: Filter material D: Holding material 1A: First filtration container 10: First filtration container container 2A: Second filtration container
2B: second filtration container 2C: second filtration container 2D: second filtration container 2E: second filtration container 2F: second filtration container 2G: second filtration container 2H: second filtration container 20: second filtration container container 3A: Filtration space 3B: Filtration space 3C: Filtration space 3D: Filtration space 3E: Filtration space 3F ': Filtration space 3G: Drainage part 3: Water inlet 31: Lower side water inlet 32: Upper side water inlet 310: Lower end part 30B : Filtration space 31B: Filtration space 30C: Filtration space 31C: Filtration space 30D: Filtration space 31D: Filtration space 30E: Filtration space 31E: Filtration space

Claims (10)

A first filtering unit that filters sewage; and a second filtering unit that is downstream of the first filtering unit and that receives and filters the sewage flowing out after being filtered by the first filtering unit. The section includes at least a first filtration container that contains a holding material that holds contaminants contained in the sewage, and a first filtration container container that accommodates the first filtration container so that it can be inserted and removed freely. The filtration unit is divided into a plurality of second filtration containers that contain a filtering material for filtering sewage, and a plurality of filtrations that are divided from the upstream side to the downstream side and that allow the second filtration container to be inserted and removed freely and store sewage. a second filtration cassette holder having a space communicated with the filtration space between, and a passing Minakuchi moving in the filtration space adjacent the pooled sewage downstream, said first filter container housing Body and the second filtration container container are wood Formed with, the wood is sewage filtration apparatus characterized by containing the soil groaning.   The sewage filtration apparatus according to claim 1, wherein the water flow port is provided so as to flow sewage into the second filtration container from an upper part of the second filtration container.   The water flow port is a lower side water flow port provided on the upstream side, an upper side water flow port provided above and below the lower side water flow port, the lower side water flow port and the upper side water flow port. The sewage filtration apparatus according to claim 1, further comprising: a water channel that communicates with the water channel. The through Mizuguchi is having the second lower-side passage pour sewage in the second filtering vessel from the lower portion of the filtering vessel Mizuguchi, an upper side through water inlet to pour the sewage at the top of the second filtering vessel, both these The sewage filtration apparatus according to claim 1 or 2, wherein the water passage is provided alternately from upstream to downstream.   2. The sewage filtering apparatus according to claim 1, wherein the water flow port is provided so that sewage flows into the second filtration container from a lower part of the second filtration container.   The water inlet is an upper side water outlet provided on the upstream side, a lower side water inlet provided below and on the downstream side of the upper side water inlet, the upper side water inlet and the lower side water inlet. The sewage filtration apparatus according to claim 1, further comprising: a water channel communicating with the sewage channel.   The sewage filtration apparatus according to any one of claims 3 to 6, wherein a lower end portion of the upper side water inlet is set so that a downstream side is lower than an upstream side. The filtration space of the most downstream side, provided with a drainage unit for draining the filtered filtered water into the filtration space outside the drainage portion includes a feature that you have provided below the upper side through Mizuguchi The sewage filtration apparatus according to any one of claims 3 to 7.   The sewage filtration apparatus according to any one of claims 1 to 8, wherein the second filtration container is accommodated so as to be submerged.   The sewage filtration apparatus according to any one of claims 1 to 9, wherein the sewage filtration apparatus is embedded, excluding or including the first filtration container container.

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