CN110104911B - MBBR high-standard sewage treatment system and treatment process - Google Patents
MBBR high-standard sewage treatment system and treatment process Download PDFInfo
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- CN110104911B CN110104911B CN201910542887.XA CN201910542887A CN110104911B CN 110104911 B CN110104911 B CN 110104911B CN 201910542887 A CN201910542887 A CN 201910542887A CN 110104911 B CN110104911 B CN 110104911B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/286—Anaerobic digestion processes including two or more steps
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention belongs to the technical field of sewage treatment, and particularly relates to an MBBR high-standard sewage treatment system and a treatment process. According to the invention, the effect of flexible and controllable sludge external reflux amount in the MBBR process is achieved by arranging the pipe body closing unit comprising the mounting plate, the opening groove for closing, the pipe hole, the mounting column, the closing plate unit, the magnetic attraction unit and the jacking column unit on the sludge reflux pipe. The invention has the advantages of reasonable and effective structure for adjusting and controlling the external sludge backflow amount from the sedimentation tank to the anaerobic tank, simple and convenient opening and closing operation of the pipe body closing unit, good effect of graded clamping of the magnetic attraction unit, stepless clamping and adjusting of the closed clamping amplitude of the jacking column unit, good external sludge backflow effect and good sewage treatment effect of the whole MBBR process, so that the sewage treatment can meet the requirement of surface quasi-IV water.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to an MBBR high-standard sewage treatment system and a treatment process.
Background
The MBBR technology, namely the moving bed biofilm reactor, refers to the biofilm formation on a suspension carrier and is used for sewage treatment, wherein the suspension mode has the effect of a fluidized bed mode, and the biofilm mode achieves the treatment effect of a biological contact oxidation mode, so the MBBR technology has the two existing modes, and can greatly reduce COD, ammonia nitrogen, TN and TP in sewage.
But on the other hand, generally mark among the current MBBR technology in the mud external reflux from the sedimentation tank to the anaerobism pond, if the backward flow is too fast, then lead to anaerobism pond mud too much, reduce the efficiency that the anaerobism pond removed TP, on the other hand if the backward flow is too slow, then the mud residual amount is big in the sedimentation tank, upper clear water overflow degree of stewing is thorough inadequately, can mix with partial mud in the overflow clear water, finally reduce sewage treatment effect, consequently, the urgent need for a take flow control function's mud back flow in the market, the volume of guaranteeing the mud external reflux is suitable.
The Chinese patent with patent publication No. CN105129989A and publication No. 2015.12.09 discloses an MBBR process for treating municipal sewage, which comprises the following steps: the urban sewage after primary treatment removes suspended matters and partial organic matters in the sewage, then sequentially enters an anaerobic zone, an aerobic zone and an anoxic zone of the MBBR system through a water inlet tank, and enters a secondary sedimentation tank from the anoxic zone; nitrifying bacteria are attached to the surface of a suspended carrier in an aerobic zone of the MBBR biological treatment system.
However, the MBBR process method in the invention patent has the problem of poor treatment effect.
Disclosure of Invention
The invention aims to provide an MBBR high-standard sewage treatment system and a treatment process, which can achieve the effect of flexibly controlling the external sludge reflux amount in the MBBR process by arranging a pipe body closing unit comprising a mounting plate, a groove for closing, a pipe hole, a mounting column, a closing plate unit, a magnetic attraction unit and a jacking column unit on a sludge reflux pipe. The invention has the advantages of reasonable and effective structure for adjusting and controlling the external sludge backflow amount from the sedimentation tank to the anaerobic tank, simple and convenient opening and closing operation of the pipe body closing unit, good effect of graded clamping of the magnetic attraction unit, stepless clamping and adjusting of the closed clamping amplitude of the jacking column unit, good external sludge backflow effect and good sewage treatment effect of the whole MBBR process, so that the sewage treatment can meet the requirement of surface quasi-IV water.
The technical scheme adopted by the invention for solving the problems is as follows: the utility model provides a high standard sewage treatment system of MBBR, includes filtering ponds, anaerobism pond, oxygen deficiency pond, good oxygen pond and sedimentation tank in proper order, sedimentation tank below mud discharge port with all be equipped with the mud back flow between the anaerobism pond water inlet, be equipped with the body closed cell who is used for adjusting the mud flow on the mud back flow.
The further preferred technical scheme is as follows: the closed unit of body includes the mounting panel, sets up fluting for the closure on the mounting panel sets up on two cell body lateral walls of fluting for the closure and be used for the pore that mud back flow passed sets up respectively two erection columns of both sides position department on the bottom surface in the fluting for the closure, both ends fluting and block set up two just be used for compressing tightly the closure on the erection column the closing plate unit of mud back flow sets up the erection column with on the closing plate unit and through the magnetic force attraction mode in order to be used for fixing the magnetic force attraction unit of closing plate unit, and set up on the closing plate unit and through on the erection column ring face jack-up clamping mode in order to be used for stepless fixed the jack-up post unit of closing plate unit.
The further preferred technical scheme is as follows: the closed plate unit comprises a plate body and semicircular grooves which are respectively arranged at two ends of the plate body and are used for axial sliding adjustment after being clamped on the cylindrical mounting column; the magnetic attraction unit is including setting up ring channel on the erection column anchor ring face, the embedding sets up permanent magnet ring on the ring channel sets up arc wall on the semicircular groove arc wall inner face to and the embedding sets up on the arc wall and through with permanent magnet ring mutual magnetic attraction mode is in order to be used for fixed right the mud back flow carries out the clamping action the arc permanent magnet piece of plate body, a plurality of permanent magnet ring is in follow major axis direction on the erection column and set up according to even linear arrangement mode interval.
The further preferred technical scheme is as follows: the jacking column unit comprises a middle groove arranged at the middle position of the upper surface of the plate body, a semi-circular groove and two jacking portions arranged between the semi-circular groove and the middle groove and used for clamping and fixing the mounting column ring surface in an outward jacking mode, and pushing portions arranged on the middle groove and used for outwards jacking and fixing the jacking portions in an extruding mode towards two sides.
The further preferred technical scheme is as follows: the jacking portion comprises a cylinder groove communicated with the middle groove and the semicircular groove, and a jacking column inserted into the cylinder groove and used for receiving the pushing portion to push outwards to jack up and clamp the mounting column ring surface, wherein two ends of the jacking column are spherical end surfaces.
The further preferred technical scheme is as follows: the jacking part further comprises a permanent magnet ring for resetting, wherein the permanent magnet ring is embedded into the annular surface of the jacking column and is used for carrying out retraction resetting operation on the jacking column in a magnetic attraction mode with the middle areas of the magnetic poles at the two ends of the arc permanent magnet block.
The further preferred technical scheme is as follows: the pushing portion comprises two limiting mounting columns arranged on the middle groove, an opening is formed in the middle groove in a sleeved mode, the limiting mounting columns are used for jacking outwards for two, the pushing blocks of the jacking columns are in an inverted isosceles trapezoid shape, and the jacking columns respectively abut against two trapezoid waists of the inverted isosceles trapezoid.
The further preferred technical scheme is as follows: the promotion portion is still including cup jointing the setting and is in on the spacing erection column and be used for outside jack-up promote the reset spring of piece, set up the limiting plate of spacing erection column outside end position department sets up on the bottom surface and pass in the middle of the groove promote the regulation post of piece to and the spiro union setting is in on the regulation post and through inside rotatory mode in order to be used for the drive promote the piece and then outside jack-up the nut for the drive of jack-up post.
A treatment process of an MBBR high-standard sewage treatment system sequentially comprises the following steps:
s1, sequentially arranging the filter tank, the anaerobic tank, the anoxic tank, the aerobic tank and the sedimentation tank, and introducing sewage to be treated;
s2, opening the sludge return pipe, and returning part of sludge in the sedimentation tank to the anaerobic tank;
s3, adjusting the closing degree of the pipe body closing unit to ensure that the sedimentation water of the sedimentation tank is sufficient, and the amount of sludge required by anaerobic treatment of the anaerobic tank is appropriate.
The further preferred technical scheme is as follows: and discharging the upper layer clear water of the sedimentation tank in an overflowing manner.
According to the invention, the effect of flexible and controllable sludge external reflux amount in the MBBR process is achieved by arranging the pipe body closing unit comprising the mounting plate, the opening groove for closing, the pipe hole, the mounting column, the closing plate unit, the magnetic attraction unit and the jacking column unit on the sludge reflux pipe. The invention has the advantages of reasonable and effective structure for adjusting and controlling the external sludge backflow amount from the sedimentation tank to the anaerobic tank, simple and convenient opening and closing operation of the pipe body closing unit, good effect of graded clamping of the magnetic attraction unit, stepless clamping and adjusting of the closed clamping amplitude of the jacking column unit, good external sludge backflow effect and good sewage treatment effect of the whole MBBR process, so that the sewage treatment can meet the requirement of surface quasi-IV water.
Drawings
FIG. 1 is a flow diagram of a wastewater treatment system according to the present invention.
FIG. 2 is a schematic view of the position structure of the sludge return pipe and the mounting plate according to the present invention.
Fig. 3 is a schematic view of the position structure of the closing plate unit in the invention.
Fig. 4 is a schematic view of the position structure of the magnetic attraction unit in the present invention.
Fig. 5 is a schematic view of the position structure of the jack-up column unit according to the present invention.
Detailed Description
The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.
Example (b): as shown in figures 1, 2, 3, 4 and 5, the MBBR high-standard sewage treatment system sequentially comprises a filter tank, an anaerobic tank, an anoxic tank, an aerobic tank and a sedimentation tank, and is characterized in that: and a sludge return pipe is arranged between the sludge discharge port below the sedimentation tank and the water inlet of the anaerobic tank, and a pipe body closing unit for adjusting the flow of sludge is arranged on the sludge return pipe.
The closed unit of body includes mounting panel 1, sets up fluting 2 for the closure on the mounting panel 1 sets up on two cell walls of closed fluting 2 and be used for the pipe hole 3 that the mud back flow passed sets up respectively two erection columns 4 of both sides position department on the closed fluting 2 interior bottom surface for the closure, both ends fluting and block set up two on the erection column 4 and be used for compressing tightly the closure the closing plate unit 5 of mud back flow sets up the erection column 4 with on the closing plate unit 5 and through the magnetic force attraction mode in order to be used for fixing the magnetic force attraction unit 6 of closing plate unit 5, and set up on the closing plate 5 unit and through jack-up clamping mode is in order to be used for stepless fixed on the 4 annuluses of erection column jack-up post unit 7 of closing plate unit 5.
The closing plate unit 5 comprises a plate body 501 and semicircular grooves 502 which are respectively arranged at two ends of the plate body 501 and are used for axial sliding adjustment after clamping on the cylindrical mounting column 4; magnetic attraction unit 6 is including setting up ring channel 601 on the 4 anchor rings of erection column, the embedding sets up permanent magnet ring 602 on the ring channel 601 sets up arc wall 603 on the semicircular groove 502 arc wall inner face to and the embedding sets up on the arc wall 603 and through with permanent magnet ring 602 mutual magnetic attraction mode is in order to be used for fixed right the mud return pipe presss from both sides tight action plate body 501's arc permanent magnet piece 604, a plurality of permanent magnet ring 602 is in follow major axis direction and set up according to even linear arrangement mode interval on the erection column 4.
The jack-up post unit 7 includes a middle groove 701 provided at a middle position of the upper surface of the plate body 501, two jack-up portions 702 provided between the semicircular groove 502 and the middle groove 701 and used for clamping and fixing the plate body 501 on the ring surface of the mounting post 4 by an outward jack-up manner, and a pushing portion 703 provided on the middle groove 701 and used for pushing and fixing the jack-up portions 702 outward by a pushing manner to both sides.
The jacking portion 702 comprises a cylinder groove 702a communicating the middle groove 701 and the semicircular groove 502, and a jacking column 702b inserted into the cylinder groove 702a and used for jacking and clamping the mounting column 4 on the ring surface after receiving the pushing action of the pushing portion 703, wherein two ends of the jacking column 702b are spherical end surfaces.
The jacking portion 702 further includes a permanent magnet ring 702c for resetting, which is embedded in the ring surface of the jacking post 702b and magnetically attracts the middle regions of the magnetic poles at the two ends of the arc permanent magnet 604 to perform the returning and resetting operation on the jacking post 702 b.
The pushing portion 703 comprises two limiting mounting posts 703a arranged on the middle groove 701, and a pushing block 703b which is provided with an opening and sleeved on the two limiting mounting posts 703a and is used for outwards jacking the two jacking posts 702b, wherein the pushing block 703b is in an inverted isosceles trapezoid shape, and the two jacking posts 702b are respectively abutted against two trapezoid waists of the inverted isosceles trapezoid.
The pushing part 703 further comprises a return spring 703c sleeved on the limiting mounting post 703a and used for outward jacking the pushing block 703b, a limiting plate 703d arranged at the outer end of the limiting mounting post 703a, an adjusting post 703e arranged on the inner bottom surface of the middle groove 701 and penetrating through the pushing block 703b, and a driving nut 703f screwed on the adjusting post 703e and used for driving the pushing block 703b to jack the jacking post 702b outward in an inward rotating manner.
A treatment process of an MBBR high-standard sewage treatment system sequentially comprises the following steps:
s1, sequentially arranging the filter tank, the anaerobic tank, the anoxic tank, the aerobic tank and the sedimentation tank, and introducing sewage to be treated;
s2, opening the sludge return pipe, and returning part of sludge in the sedimentation tank to the anaerobic tank;
s3, adjusting the closing degree of the pipe body closing unit to ensure that the sedimentation water of the sedimentation tank is sufficient, and the amount of sludge required by anaerobic treatment of the anaerobic tank is appropriate.
And discharging the upper layer clear water of the sedimentation tank in an overflowing manner.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. These are non-inventive modifications, which are intended to be protected by patent laws within the scope of the claims appended hereto.
Claims (3)
1. The utility model provides a high standard sewage treatment system of MBBR, includes filtering ponds, anaerobism pond, oxygen deficiency pond, good oxygen pond and sedimentation tank, its characterized in that in proper order: a sludge return pipe is arranged between a sludge discharge port below the sedimentation tank and the water inlet of the anaerobic tank, and a pipe body closing unit for adjusting the flow of sludge is arranged on the sludge return pipe;
the pipe body closing unit comprises a mounting plate (1), a closing slot (2) arranged on the mounting plate (1), a pipe hole (3) arranged on two side walls of the closing slot (2) and used for the sludge return pipe to pass through, two mounting columns (4) respectively arranged at two side positions on the inner bottom surface of the closing slot (2), a closing plate unit (5) with two ends slotted and clamped on the two mounting columns (4) and used for tightly pressing and closing the sludge return pipe, and a magnetic attraction unit (6) arranged on the mounting columns (4) and the closing plate unit (5) and used for fixing the closing plate unit (5) in a magnetic attraction mode, and a jacking column unit (7) which is arranged on the closing plate unit (5) and is used for fixing the closing plate unit (5) in a stepless manner in a jacking clamping manner on the ring surface of the mounting column (4);
the closing plate unit (5) comprises a plate body (501) and semicircular grooves (502) which are respectively arranged at two ends of the plate body (501) and are used for axial sliding adjustment after clamping on the cylindrical mounting column (4); the magnetic attraction unit (6) comprises an annular groove (601) arranged on the annular surface of the mounting column (4), a permanent magnet ring (602) embedded in the annular groove (601), an arc-shaped groove (603) arranged on the inner surface of the arc-shaped groove of the semicircular groove (502), and arc-shaped permanent magnet blocks (604) embedded in the arc-shaped groove (603) and used for fixing the plate body (501) for clamping the sludge return pipe in a mutual magnetic attraction manner with the permanent magnet ring (602), wherein the permanent magnet rings (602) are arranged on the mounting column (4) at intervals in a uniform linear arrangement manner along the long axial direction;
the jacking column unit (7) comprises a middle groove (701) arranged at the middle position of the upper surface of the plate body (501), two jacking parts (702) which are arranged between the semicircular groove (502) and the middle groove (701) and used for clamping and fixing the plate body (501) on the ring surface of the mounting column (4) in an outward jacking mode, and pushing parts (703) which are arranged on the middle groove (701) and used for jacking and fixing the jacking parts (702) outwards in a pushing mode towards two sides;
the jacking portion (702) comprises a cylinder groove (702 a) communicating the middle groove (701) and the semicircular groove (502), and a jacking column (702 b) inserted into the cylinder groove (702 a) and used for jacking and clamping on the ring surface of the mounting column (4) after receiving the outward pushing action of the pushing portion (703), wherein two ends of the jacking column (702 b) are spherical end surfaces;
the pushing part (703) comprises two limiting mounting columns (703 a) arranged on the middle groove (701) and a pushing block (703 b) which is provided with an opening and sleeved on the two limiting mounting columns (703 a) and used for outwards jacking the two jacking columns (702 b), the pushing block (703 b) is in an inverted isosceles trapezoid shape, and the two jacking columns (702 b) respectively abut against two trapezoid waists of the inverted isosceles trapezoid.
2. The MBBR high standard sewage treatment system of claim 1, wherein: the jacking portion (702) further comprises a permanent magnet ring (702 c) for resetting, wherein the permanent magnet ring is embedded in the annular surface of the jacking column (702 b) and is used for performing retraction and resetting operation on the jacking column (702 b) in a way of mutually attracting magnetic poles at the middle areas of the two ends of the arc-shaped permanent magnet block (604).
3. The MBBR high standard sewage treatment system of claim 1, wherein: the pushing part (703) further comprises a return spring (703 c) which is sleeved on the limiting mounting column (703 a) and used for outwards jacking the pushing block (703 b), a limiting plate (703 d) which is arranged at the position of the end of the outer side of the limiting mounting column (703 a), an adjusting column (703 e) which is arranged on the inner bottom surface of the middle groove (701) and penetrates through the pushing block (703 b), and a driving nut (703 f) which is arranged on the adjusting column (703 e) in a threaded manner and used for driving the pushing block (703 b) to further outwards jack the jacking column (702 b) in an inwards rotating manner.
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| CN201910542887.XA CN110104911B (en) | 2019-06-21 | 2019-06-21 | MBBR high-standard sewage treatment system and treatment process |
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| CN201910542887.XA CN110104911B (en) | 2019-06-21 | 2019-06-21 | MBBR high-standard sewage treatment system and treatment process |
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| CN110104911B true CN110104911B (en) | 2021-12-31 |
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