CN211226811U - Integrated sewage treatment equipment - Google Patents

Abstract

The utility model relates to the field of sewage treatment, and provides an integrated sewage treatment equipment. The integrated sewage treatment equipment includes a central cylinder, a diversion cylinder and an outer cylinder; a filter unit for removing suspended matter in the sewage is arranged in the middle of the central cylinder, and the bottom area of the central cylinder is connected to a water inlet pipe; the diversion cylinder is arranged between the outer cylinder and the central cylinder It is used to guide the fluid overflowing from the central cylinder to the bottom of the outer cylinder; the middle part of the outer cylinder is provided with a biological contact oxidation packing layer, and the bottom of the outer cylinder is provided with a second aeration pipe. The integrated sewage treatment equipment provided by the utility model integrates the first-level enhanced filtration and the second-level biological contact oxidation, the fluid residence time is shorter, and the treatment efficiency is higher; the filler in the biological contact oxidation filler layer can rapidly degrade the fluctuation of the incoming water The changing organic pollutant load keeps the effluent quality stable, and effectively solves the problem of the direct overflow of sewage in the interception well in the rainy season, polluting the river channel and increasing the treatment burden of the sewage treatment plant.

Description

Integrated sewage treatment equipment

technical field

The utility model relates to the technical field of sewage treatment, in particular to an integrated sewage treatment equipment.

Background technique

The interception well is an important part of the combined drainage pipe network system. In the dry season, the sewage from the combined pipe network first enters the interception well for collection, and then passes through the sewage trunk pipe at the back end of the interception well and enters the sewage treatment plant for treatment; in the rainy season, some The rainwater and sewage entering the interception well are intercepted and flow into the back-end sewage pipe to enter the sewage treatment plant, and the mixed water of the remaining rainwater and sewage is discharged into the river channel through the overflow port at the upper end of the interception well.

Usually, the entry standard of municipal sewage plant requires COD > 150mg/L, but the actual COD of mixed sewage from interception well is 50mg/L ~ 70mg/L, which is not conducive to microbial cultivation in the biochemical section of the water plant. Greatly increases the processing cost. At present, the quality of sewage from interception wells in most cities in southern my country during the rainy season does not meet the standards for entering the municipal sewage treatment plants, nor the standards for overflowing rivers. If the sewage from the interception well is directly discharged into the river during the rainy season, the sewage will pollute the river course due to the large amount of organic pollutants such as COD and ammonia nitrogen, causing first rain pollution and black odor in the water body. Therefore, there is an urgent need for a device that occupies a small area and can quickly and efficiently treat the sewage from the interception well in the bypass, so that the treated effluent not only meets the water quality requirements for direct river discharge, but also the treated concentrated sewage can meet the sewage treatment plant. Factory requirements.

Utility model content

The purpose of the utility model is to provide an integrated sewage treatment equipment, which is used to solve the problems of the direct overflow of sewage in the existing interception wells to pollute the river course and increase the treatment burden of sewage plants.

In order to solve the above technical problems, the utility model provides an integrated sewage treatment equipment, including a central cylinder, a guide cylinder and an outer cylinder; a filter unit for removing suspended matter in the sewage is arranged in the middle of the central cylinder, and the central cylinder The bottom area of the tube is connected to the water inlet pipe; the guide tube is arranged between the outer tube and the central tube, and is used to guide the fluid overflowing from the central tube to the bottom of the outer tube; the outer tube A biological contact oxidation packing layer is arranged in the middle of the cylinder, and a second aeration pipe is installed at the bottom of the outer cylinder.

Wherein, the biological contact oxidation filler layer includes an upper screen, a lower screen and a polyurethane sponge filled between the upper screen and the lower screen, and the upper screen and the lower screen are fixedly installed in the outer cylinder .

Wherein, the filter unit includes an upper baffle net, a lower baffle net and a filter layer filled between the upper baffle net and the lower baffle net, and the upper baffle net and the lower baffle net are fixedly installed on the In the central cylinder, the filter layer includes a polyurethane sponge layer and a fiber ball filling layer located above the polyurethane sponge layer.

Wherein, the inner diameter ratio of the central cylinder and the outer cylinder is 0.3-0.6.

Wherein, the top of the center cylinder is provided with a plurality of overflow ports, and the multiple overflow ports are distributed in multiple layers along the axial direction of the center cylinder.

Wherein, the outer cylinder and the central cylinder are of a sleeve structure sharing a bottom, the guide cylinder is a cylinder with two ends open, and the bottom of the guide cylinder is suspended.

Wherein, a first aeration pipe is installed at the bottom of the center cylinder, a first mud discharge pipe is installed in the center cylinder below the filter unit, and a first mud pipe is installed in the outer cylinder below the biological contact oxidation packing layer There is a second row of mud pipes.

Wherein, both the first aeration pipe and the second aeration pipe are connected to the same fan, and the fan is used to blow air or oxygen into the first aeration pipe or the second aeration pipe.

Wherein, it also includes a coagulation dosing device, the coagulation dosing device is located outside the outer cylinder, and is used for mixing and flocculating the fluid to be treated and the medicament.

Wherein, the coagulation and dosing device includes a medicine box and a mixer, the mixer is connected with the sewage pipe and the medicine box at the same time, and the water outlet of the mixer is connected with the water inlet pipe.

The integrated sewage treatment equipment provided by the utility model integrates the primary enhanced filtration of the filter unit and the secondary biological contact oxidation of the biological contact oxidation packing layer, the fluid residence time is shorter, and the treatment efficiency is higher; The packing inside can quickly degrade the fluctuating organic pollutant load in the incoming water, keep the effluent water quality stable, the effluent ammonia nitrogen is stable below 1mg/L, and the COD concentration is stable below 30mg/L, which meets the first-class A effluent standard and effectively solves the problem of interception. The problem of the direct overflow of sewage from the well in the rainy season pollutes the river and increases the treatment burden of the sewage treatment plant.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative work.

1 is a perspective view of an integrated sewage treatment equipment according to an embodiment of the present invention;

FIG. 2 is a longitudinal cross-sectional view of the integrated sewage treatment equipment shown in FIG. 1 .

In the figure: 10, the central cylinder; 11, the first aeration pipe; 12, the overflow port; 13, the first mud pipe; 20, the guide cylinder; 30, the outer cylinder; 31, the second aeration pipe; 32 , outlet weir; 33, outlet tank; 34, second mud pipe; 40, biological contact oxidation packing layer; 41, upper screen; 42, lower screen; 50, filter unit; 51, upper screen; 52, lower screen Net; 60. Water inlet pipe.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described above are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The integrated sewage treatment equipment shown in FIG. 1 and FIG. 2 includes a central cylinder 10 , a guide cylinder 20 and an outer cylinder 30 . The guide tube 20 is disposed between the central tube 10 and the outer tube 30 , and is used for guiding the fluid overflowing from the central tube 10 to the outer tube 30 . The middle part of the outer cylinder 30 is provided with a biological contact oxide packing layer 40, and the middle part of the central cylinder 10 is provided with a filter unit 50, both of which are used for filtering fluid. A second aeration pipe 31 is installed at the bottom of the outer cylinder 30 , and the bottom area of the central cylinder 10 is connected to the water inlet pipe 60 .

In the embodiment of the present invention, the filter unit 50 is used to filter the suspended matter in the sewage; the second aeration pipe 31 is used to supply oxygen to the biological contact oxidizing packing layer 40 , and the organic matter carried by the sewage is in the biological contact oxidizing packing layer 40 The microorganisms on the surface of the biological filler absorb and degrade to form a biofilm, which in turn absorbs and degrades the organic matter in the water body. When in use, the fluid enters the bottom of the central cylinder 10 along the water inlet pipe 60, moves upward from the bottom of the central cylinder 10, is filtered by the filter unit 50 and overflows into the guide cylinder 20, and then flows into the outer cylinder 30, and is oxidized by biological contact. The packing layer 40 is discharged after secondary filtration. The biological contact oxidation packing layer 40 in the integrated sewage treatment equipment adopts biofilm technology, and there are no problems such as sludge bulking, sludge floating and sludge loss, and there is no need to worry about mass transfer problems, oxygen supply problems and clogging problems. It is not necessary to frequently monitor the sludge situation in the reaction zone and change the operating parameters, which makes the daily operation management easier.

The integrated sewage treatment equipment provided by the embodiment of the present utility model has a total residence time of only 2.6 hours, and has the functions of regulation and storage, first-level enhanced filtration and second-level biochemical degradation, while the total residence time of traditional sewage treatment plants is between 12 and 24 hours. hours or even more, in contrast, the fluid residence time of the integrated sewage treatment equipment is shorter and the treatment efficiency is higher. Within the fluctuation range of the influent ammonia nitrogen concentration of 10-30 mg/L and the COD concentration of 50-160 mg/L, the integrated sewage treatment equipment can rapidly degrade the fluctuating organic matter in the influent by means of biological contact with the filler in the oxidation filler layer 40. Pollutant load, keep the effluent water quality stable, the effluent ammonia nitrogen is stable below 1mg/L, and the COD concentration is stable below 30mg/L, which conforms to the first-class A effluent standard, which effectively solves the problem of direct overflow of sewage in the interception well during the rainy season, polluting the river channel and increasing sewage The factory deals with the burden of the problem.

Compared with the traditional sewage treatment device, the integrated sewage treatment equipment provided by the embodiment of the present invention integrates the primary enhanced filtration of the filter unit 50 and the secondary biological contact oxidation of the biological contact oxidation packing layer 40. The nitrification efficiency of ammonia nitrogen NH ₄ ^- N in the cylinder 30 is 250-600g/( ^m3.d ), which is much higher than 30-50g/(m3.d) of traditional sewage treatment plants, and there is no need to adjust the storage tank and the primary sedimentation tank. And the effluent suspended solids (SS) is less than 15mg/L, the effluent is clear, no need for a secondary sedimentation tank, and the investment land is greatly reduced. The daily treatment capacity of the integrated sewage treatment equipment is not less than 100t-300t, and the surface load treatment efficiency is 7.7t/m ² , while the surface load treatment efficiency of the traditional sewage treatment plant is 0.22-0.15t/m ² , compared with , the integrated sewage treatment equipment provided by the embodiment of the present utility model greatly reduces the land area, and adopts the buried type, which is very suitable for the current situation that the land area of the urban interception well bypass sewage treatment planning is small.

Wherein, the biological contact oxidation filler layer 40 includes an upper screen 41 , a lower screen 42 and a polyurethane sponge filled between the upper screen 41 and the lower screen 42 . Preferably, the polyurethane sponge fills the space between the upper screen 41 and the lower screen 42 . Polyurethane sponge has extremely strong biological adhesion, and the fully-filled fixed bed mode makes the biological contact with the oxidized packing layer 40 very large biomass, which can quickly degrade the fluctuating organic pollutant load in the incoming water and maintain the quality of the effluent. Stablize. Further, the upper blocking net 41 includes a plurality of fan-shaped stainless steel nets, and stainless steel iron sheets are wrapped around the edges of the stainless steel nets. Specifically, the upper net 41 and the lower net 42 respectively comprise 12 stainless steel nets, and the upper net 41 and the lower net 42 are respectively fixedly connected to brackets through bolts, and the brackets are angle steel brackets.

In the embodiment of the present utility model, the density of the polyurethane sponge and fiber balls filled in the central cylinder 10 and the outer cylinder 30 are both close to 1 g/cm ³ , which are lightweight fillers, easy to fill, and do not require high structural strength of the equipment. Easy to install. In addition, these two fillers are inexpensive and cost-effective.

Wherein, the outer cylinder 30 includes a cylindrical cylinder wall, the periphery and the bottom of which are sealed, and the top is open. A water outlet weir 32 is installed on the top of the outer cylinder 30 , and the water outlet weir 32 is connected with the wall of the outer cylinder 30 to form a ring-shaped water outlet groove 33 . The upper net 41 and the lower net 42 are located between the first aeration pipe 11 and the water outlet weir 32 . When the sewage passes through the biological contact oxidizing packing layer 40 and flows through the outlet weir 32 into the annular outlet groove 33 , it flows out along the annular outlet groove 33 .

The filter unit 50 includes an upper blocking net 51 , a lower blocking net 52 and a filter layer, and the filter layer is located between the upper blocking net 51 and the lower blocking net 52 . The lower screen 52 is in the shape of a circular sheet, including an annular angle steel bracket and a stainless steel mesh welded and fixed in the annular angle steel. The stainless steel mesh is made of 304 stainless steel, and the mesh is 20mm×20mm; the annular angle steel bracket is made of Q235. The upper blocking net 51 is detachably connected to the annular angle steel bracket by bolts, and the mesh size of the upper blocking net 51 is the same as that of the stainless steel mesh in the lower blocking net 52 . It should be noted that the upper blocking net 51 and the lower blocking net 52 are set in a one-to-one correspondence with the positions of the upper blocking net 41 and the lower blocking net 42 . The filter layer includes a sponge filter layer and a fiber ball filter layer, and the fiber ball filter layer is located above the sponge filter layer. The sponge filter layer includes several polyurethane sponges of different specifications; the fiber ball filter layer is filled with fiber balls. Preferably, the filter layer fills the space between the upper baffle mesh 51 and the lower baffle mesh 52 .

Specifically, the center cylinder 10 and the outer cylinder 30 in the embodiment of the present invention are of a sleeve structure sharing a cylinder bottom, the guide cylinder 20 is sleeved outside the center cylinder 10, and the bottom of the guide cylinder 20 is connected to the shared cylinder bottom. There is a gap therebetween, so that the guide tube 20 is installed between the central tube 10 and the outer tube 30 in a suspended manner. After the fluid overflows upward from the bottom of the central cylinder 10 , it is drained by the cylinder wall of the guide cylinder 20 and merged into the cylinder bottom of the outer cylinder 30 . Preferably, the axis of the central cylinder 10 , the axis of the guide cylinder 20 and the axis of the outer cylinder 30 coincide. The center cylinder 10, the guide cylinder 20 and the outer cylinder 30 in the embodiment of the present invention are all made of Q235-A carbon structural steel, which has a good anti-corrosion effect; And the inner wall of the outer cylinder 30 is oiled and anti-corrosion treatment to improve the service life.

In the embodiment of the present invention, the inner diameters of the central cylinder 10, the guide cylinder 20 and the outer cylinder 30 are designed according to different requirements of the daily processing capacity, which are not specifically limited in the embodiment of the present invention. Preferably, the inner diameter ratio of the central cylinder 10 and the outer cylinder 30 is 0.3-0.6, so that the residence time of the water body in the central cylinder 10 and the outer cylinder 30 is sufficient, and the processing speed is improved on the premise of ensuring the filtering effect.

Wherein, the guide tube 20 is fixedly connected to the outer side of the tube wall of the central tube 10 through an angle steel bracket. The periphery of the central cylinder 10 is sealed with the bottom, and the top can be open or closed. A plurality of overflow ports 12 are provided on the top of the center cylinder 10 , and the plurality of overflow ports 12 are evenly distributed along the circumferential direction of the center cylinder 10 . Specifically, the plurality of overflow openings 12 are arranged in three layers up and down along the axial direction of the central cylinder 10 , and the overflow openings 12 of each layer are alternately distributed with the overflow openings 12 of adjacent layers.

In order to facilitate the timely discharge of the sludge blocked by the biological contact with the oxidation packing layer 40 and the filter unit 50, a first aeration pipe 11 and a first sludge discharge pipe 13 are installed at the bottom of the central cylinder 10. The first aeration pipe 11 and the first row The mud pipe 13 cooperates to realize backwashing and sewage discharge. A second mud pipe 34 is installed at the bottom of the outer cylinder 30 . The first mud pipe 13 is located between the lower screen 52 and the bottom of the cylinder, and the second mud pipe 34 is located between the bottom block 42 and the bottom of the outer cylinder 30 . The first sludge discharge pipe 13 is connected to the external sewage pipe through the cylinder walls of the central cylinder 10 and the outer cylinder 30 , and the second sludge discharge pipe 34 is connected to the external sewage pipe through the cylinder wall of the outer cylinder 30 .

In the embodiment of the present invention, the first aeration pipe 11 and the second aeration pipe 31 are both connected to the same fan. Under the action of the fan, air or oxygen is alternately blown into the first aeration pipe 11 and the second aeration pipe 31 . It should be noted that, the first aeration pipe 11 and the second aeration pipe 31 may each be connected to a fan, which is not specifically limited. The first aeration pipe 11 is used to realize backwashing. Both the first aeration pipe 11 and the second aeration pipe 31 are annular pipes. Wherein, the first aeration pipe 11 is an annular pipe arranged in a single circle, the second aeration pipe 31 is an annular pipe arranged in two inner and outer circles, and the two circles of the second aeration pipe 31 are respectively provided with a number of openings, a number of The openings are symmetrically distributed along both sides of each ring of pipes, each side is provided with 30 openings, a total of 60 openings are opened in each ring of pipes, and the diameter of each opening is 3mm. The first aeration pipe 11 is fixed to the bottom of the central cylinder 10 by angle steel welding, and the second aeration pipe 31 is fixed to the bottom of the outer cylinder 30 by angle steel welding. The first aeration pipe 11 is located above the water inlet pipe 60 , the hole axis of the opening is arranged obliquely upward with respect to the horizontal direction, and the included angle between the hole axis and the horizontal direction is 40°˜50°. Preferably, the included angle between the hole axis of the opening and the horizontal direction is 45°. The first aeration pipe 11 and the connecting pipe of the fan and the connecting pipe of the second aeration pipe 31 and the fan are all installed on the outer wall of the central cylinder 10 , and the connecting pipes extend along the axial direction of the central cylinder 10 .

The integrated sewage treatment equipment in the embodiment of the present invention further includes a coagulation dosing device, which is placed outside the outer cylinder 30 and is used to mix and flocculate the fluid to be treated and the medicament. Specifically, the coagulation and dosing device includes a medicine box and a mixer, the mixer is connected with the medicine box and the sewage pipe at the same time, and the water outlet of the mixer is connected with the water inlet pipe 60 . A dosing pump is installed on the communication pipeline between the mixer and the medicine box, so that the medicine can be pumped into the mixer and fully mixed with the sewage. Among them, the agents include polyaluminum chloride agent, sodium hydroxide agent and polyacrylamide, in order to flocculate sewage and supplement the alkalinity. The high-efficiency coagulation and quick-filtration system composed of the mixer and the central cylinder 10 can remove most of the suspended matter impurities in the water body in a short time and adjust the pH value of the influent water to meet the requirements of biochemical influent water.

Further, the mixer includes a first mixer and a second mixer. The first mixer is provided with a sewage inlet and a dosing port. The dosing port of the first mixer is used to add polyaluminum chloride and sodium hydroxide. The water outlet of the first mixer and the water inlet of the second mixer Connected to each other, the dosing port of the second mixer is used for adding polyacrylamide medicament, and the water outlet of the second mixer is communicated with the water inlet pipe 60 . When the influent water is turbid and the alkalinity is insufficient, the supplementary agent in the mixer can quickly replenish the alkalinity and coagulate the muddy water, so that most of the suspended solids in the sewage flocculate to form large flocs, which pass through the center The filter element of the cartridge 10 performs rapid removal.

In the integrated sewage treatment equipment provided by the embodiment of the present invention, the area inside the central cylinder 10 is used as a quick filter area, the area between the diversion cylinder 20 and the outer wall of the central cylinder 10 is the diversion area, and the outer wall of the diversion cylinder 20 and the outer wall of the central cylinder 10 are the diversion area. The area between the inner walls of the outer cylinder 30 is the biological contact oxidation zone.

In use, after the sewage is coagulated by the coagulation dosing device and supplemented with alkalinity, the suspended solids and other small impurities in the sewage coagulate to form large flocs, and then enter the bottom of the central cylinder 10 along the water inlet pipe 60 for filtration. During the upward flow of the sewage in the central cylinder 10, the large flocs formed by coagulation are retained by the filter unit 50 to achieve the removal of suspended solids, and the filtered clean water flows from the overflow port 12 at the upper end of the central cylinder 10 into the guide. The flow area is connected from the lower end of the guide area to the bottom of the outer cylinder biological contact oxidation area. Under the action of gravitational potential energy, the sewage after filtering and removing the suspended matter in the water enters the bottom of the biological contact oxidation area through the guide area.

Next, the sewage rises through the biological contact oxidation packing layer 40. Under the continuous aeration and oxygen supply of the second aeration pipe 31, the biological contact oxidation packing layer 40 is in an aerobic state, and the organic substances such as COD and ammonia nitrogen carried in the sewage are removed. The microorganisms in contact with the oxidized filler layer 40 absorb and degrade, and grow to form a highly active biofilm. These biofilms adsorb and degrade organic matter such as ammonia nitrogen and COD in the water body through mass exchange, and use them as a nutrient source necessary for their continuous growth. Through long-term operation, the biofilm on the surface of the biological contact oxide filler layer 40 will continue to grow and thicken, and a small amount of aged biofilm will be carried out with the effluent, and will not be trapped and blocked in the biological contact oxide filler layer 40 . At the same time, the inside of the biological contact oxidation packing layer 40 will gradually form a partial anoxic zone with the continuous growth and thickening of the biofilm. The low dissolved oxygen state plus the COD in the water body and the nitrate generated by the nitrification metabolism of the external biofilm are The reproduction of denitrifying bacteria creates conditions, which enables the device to achieve partial simultaneous nitrification and denitrification functions.

In addition, the quick filter area in the central cylinder 10 will enter the aeration and emptying stage after being used for a period of time. At the beginning of this stage, the first aeration pipe 11 will open the first aeration solenoid valve under the control of the time relay to start aeration. Under the impact of strong air-water mixing with an air-water ratio greater than 10:1, the filter layer in the entire filter unit 50 changes from a state of accumulation and compression to a state of expansion, and the suspended matter retained by the filter layer in the filter unit 50 is washed by the air and water. It falls off and mixes with sewage to form a mud-water mixture. A first mud discharge solenoid valve is installed on the first mud discharge pipe 13 at the bottom of the center cylinder 10, and the first mud discharge solenoid valve will be opened synchronously under the action of the time relay for emptying, and the mud-water mixture is continuously strong. Under the action of air-water scouring, it continuously descends and flows out of the integrated sewage treatment equipment from the first mud pipe 13 at the bottom. After the emptying is completed, the first aeration solenoid valve and the first sludge discharge solenoid valve are closed at the same time, and the filter layer that has lost the buoyancy of the water body quickly returns to the state of natural accumulation and compression. After the regeneration is completed, the water inlet filtration is restarted. When the first aeration solenoid valve is turned on, the second aeration solenoid valve installed on the second aeration pipe 31 is in a closed state, and the fan only feeds gas into the first aeration pipe 11 .

Since the amount of sludge produced by the biological contact oxidation process is small, the sludge discharge period of the outer cylinder 30 is much longer than that of the central cylinder 10 . The actual operation shows that the outer cylinder 30 only needs to discharge mud once every few months. When the outer cylinder 30 needs to discharge mud, stop the water inflow, open the second mud discharge pipe 34 at the bottom of the outer cylinder 30 for emptying, and close the second mud discharge pipe 34 after emptying, and the water can be resumed.

The integrated sewage treatment equipment provided by the embodiment of the utility model has a water production rate higher than 85%, and can quickly treat the sewage from the interception well in a short time so that the effluent reaches the first-class A effluent standard of the sewage plant and can be directly discharged into the river, which greatly reduces the The COD of the remaining concentrated muddy water produced in the emptying stage of the central tank 10 is between 150 and 200 mg/L, which meets the requirements of the sewage treatment plant, and can directly enter the sewage through the sewage pipe at the end of the retention well. Factory processing.

The device embodiments described above are only illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed over multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment. Those of ordinary skill in the art can understand and implement it without creative effort.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, but not to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the spirit of the technical solutions of the embodiments of the present invention and range.

Claims (10)

1. an integrated sewage treatment equipment, is characterized in that, comprises central tube, guide tube and outer tube; The middle part of described central tube is provided with the filter unit for removing suspended matter in sewage, and the bottom area of described central tube is connected a water inlet pipe; the diversion cylinder is arranged between the outer cylinder and the central cylinder, and is used to guide the fluid overflowing from the central cylinder to the bottom of the outer cylinder; the middle of the outer cylinder is provided with The biological contact with the oxidation packing layer, and the bottom of the outer cylinder is provided with a second aeration pipe. 2. The integrated sewage treatment equipment according to claim 1, wherein the biological contact oxidation filler layer comprises an upper screen, a lower screen and a polyurethane sponge filled between the upper screen and the lower screen, The upper blocking net and the lower blocking net are fixedly installed in the outer cylinder. 3. The integrated sewage treatment equipment according to claim 1 or 2, wherein the filter unit comprises an upper baffle net, a lower baffle net and a filter filled between the upper baffle net and the lower baffle net. A filter layer, the upper baffle mesh and the lower baffle mesh are fixedly installed in the central cylinder, and the filter layer includes a polyurethane sponge layer and a fiber ball filling layer located above the polyurethane sponge layer. 4 . The integrated sewage treatment equipment according to claim 1 , wherein the inner diameter ratio of the central cylinder and the outer cylinder is 0.3-0.6. 5 . 5 . The integrated sewage treatment equipment according to claim 1 , wherein a plurality of overflow ports are arranged on the top of the central cylinder, and a plurality of the overflow ports are distributed in multiple layers along the axial direction of the central cylinder. 6 . . 6 . The integrated sewage treatment equipment according to claim 1 , wherein the outer cylinder and the central cylinder are of a sleeve structure sharing a bottom, and the guide cylinder is a cylinder with open ends, The bottom of the guide tube is suspended in the air. 7 . The integrated sewage treatment equipment according to claim 1 , wherein a first aeration pipe is installed at the bottom of the center cylinder, and a first sludge discharge pipe is installed under the filter unit in the center cylinder. 8 . A second row of mud pipes is installed in the outer cylinder below the biological contact oxidation packing layer. 8 . The integrated sewage treatment equipment according to claim 7 , wherein the first aeration pipe and the second aeration pipe are connected to the same blower, and the blower is used to send the first blower to the first blower. 9 . Air or oxygen is blown into the aeration tube or the second aeration tube. 9 . The integrated sewage treatment equipment according to claim 1 , further comprising a coagulation dosing device, the coagulation dosing device is located outside the outer cylinder, and is used for mixing the fluid to be treated with Pharmacy mixing and flocculation. 10 . The integrated sewage treatment equipment according to claim 9 , wherein the coagulation and chemical dosing device comprises a medicine box and a mixer, and the mixer is connected with a sewage pipe and the medicine box at the same time, and the The water outlet of the mixer is communicated with the water inlet pipe.

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