CN110818082A - Anaerobic membrane bioreactor - Google Patents

Anaerobic membrane bioreactor Download PDF

Info

Publication number
CN110818082A
CN110818082A CN201911216236.8A CN201911216236A CN110818082A CN 110818082 A CN110818082 A CN 110818082A CN 201911216236 A CN201911216236 A CN 201911216236A CN 110818082 A CN110818082 A CN 110818082A
Authority
CN
China
Prior art keywords
pipe
fixedly connected
shell
anaerobic membrane
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911216236.8A
Other languages
Chinese (zh)
Inventor
李莹
刘强
项玮
曲吉祥
范秀磊
刘加强
杨成方
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuzhou University of Technology
Original Assignee
Xuzhou University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xuzhou University of Technology filed Critical Xuzhou University of Technology
Priority to CN201911216236.8A priority Critical patent/CN110818082A/en
Publication of CN110818082A publication Critical patent/CN110818082A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • C02F3/2806Anaerobic processes using solid supports for microorganisms
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2203/00Apparatus and plants for the biological treatment of water, waste water or sewage
    • C02F2203/006Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/14Maintenance of water treatment installations

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Biological Treatment Of Waste Water (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention discloses an anaerobic membrane bioreactor, which belongs to the technical field of sewage treatment devices, wherein the left side of a shell is fixedly connected with a water outlet pipe, the bottom of the shell is fixedly connected with a connecting pipe, the surface of the connecting pipe is fixedly provided with a control valve, the left side of the connecting pipe is fixedly connected with a water inlet pipe, the surface of the water inlet pipe is provided with a water inlet valve, the bottom of the shell is fixedly connected with a sewage discharge pipe, the surface of the sewage discharge pipe is fixedly provided with a sewage discharge valve, a filter material layer is arranged in the shell, and the water distribution pipe, the branch pipe, the short pipe and the spray head which are arranged on the anaerobic membrane bioreactor can uniformly and thoroughly wash an anaerobic membrane filter material layer, improve the washing effect, avoid the anaerobic membrane filter material layer from being partially blocked, further increase the purification effect and the purification efficiency of the bioreactor, but also can avoid the sludge from falling back to the water inlet pipe and improve the use convenience.

Description

Anaerobic membrane bioreactor
Technical Field
The invention relates to the technical field of sewage treatment devices, in particular to an anaerobic membrane bioreactor.
Background
Anaerobic treatment technology has been developed for many years and wastewater anaerobic treatment technology has been rapidly developed due to its low operating costs, its availability for biogas production and its many advantages in treating high concentrations of wastewater.
At present, the anaerobic membrane that current anaerobic membrane bioreactor set up is not thorough enough when the back flush, probably have partial position not to obtain washing, and then cause local jam, great influence the filter effect of anaerobic membrane, thereby the purification efficiency of bioreactor has been reduced, and current anaerobic membrane bioreactor is when carrying out back flush anaerobic membrane, the easy mud impurity that causes the anaerobic membrane filtration pore to block up of filter in the bioreactor can get into the sewage inlet tube along with rivers again, when bioreactor carries out sewage purification, probably block up anaerobic membrane filtration pore once more.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide an anaerobic membrane bioreactor, the water distribution pipe, the branch pipe, the short pipe and the spray head arranged in the anaerobic membrane bioreactor can uniformly and thoroughly wash an anaerobic membrane filter material layer, the washing effect is improved, the anaerobic membrane filter material layer is prevented from being partially blocked, the purification effect and the purification efficiency of the bioreactor are improved, and the water inlet valve, the water inlet pipe, the connecting pipe and the control valve are arranged, so that the function of automatically controlling water inlet and sewage discharge is realized, the sludge can be prevented from falling back to the water inlet pipe, and the use convenience is improved.
In order to solve the above problems, the present invention adopts the following technical solutions.
An anaerobic membrane bioreactor comprises a shell, wherein a water outlet pipe is fixedly connected to the left side of the shell, a connecting pipe is fixedly connected to the bottom of the shell, a control valve is fixedly mounted on the surface of the connecting pipe, a water inlet pipe is fixedly connected to the left side of the connecting pipe, a water inlet valve is mounted on the surface of the water inlet pipe, a drain pipe is fixedly connected to the bottom of the shell, a drain valve is fixedly mounted on the surface of the drain pipe, a filter material layer is arranged in the shell, a water outlet area is arranged at the upper end of the filter material layer and communicated with a water outlet pipe, a water distribution pipe is fixedly connected in the shell, a back flushing pipe is fixedly connected to the right side of the water distribution pipe, the shell is fixedly connected to the surface of the back flushing pipe, a back flushing valve is fixedly mounted on the surface of the back flushing pipe, and the water distribution, the washing effect is improved, the local blockage of the anaerobic membrane filter material layer is avoided, the purification effect and the purification efficiency of the bioreactor are increased, the arranged water inlet valve, the water inlet pipe, the connecting pipe and the control valve have the function of automatically controlling the water inlet and sewage discharge, the sludge can be prevented from falling back to the water inlet pipe, and the use convenience is improved.
Furthermore, the inner side surface of the water distribution pipe is fixedly connected with branch pipes which are distributed at equal intervals, the distribution plane of the branch pipes and the water distribution pipe are positioned on the same plane, the lower end of each branch pipe is fixedly connected with a short pipe, and the arranged branch pipes can uniformly cover the upper part of the filter material layer, so that the uniformity and the thoroughness of backwashing are improved.
Further, the lower extreme fixedly connected with shower nozzle of nozzle stub, the lower extreme of shower nozzle is circular, the lower extreme of shower nozzle is opened there is the orifice, the orifice is the equidistance and distributes, and the shower nozzle that sets up can increase and wash the area, and the orifice that sets up moreover can increase water pressure to the reinforcing washes the effect.
Furthermore, the diameter of the short pipe is smaller than that of the branch pipe, the short pipe is vertically connected with the branch pipe, the short pipe is distributed at equal intervals, and the branch pipe and the short pipe with gradually reduced diameters can increase the pressure of water flow and enhance the backwashing effect when the water flow passes through the branch pipe and the short pipe.
Furthermore, the surface of the water distribution pipe is fixedly connected with a supporting plate, the lower end of the supporting plate is fixedly connected with a shell, the supporting plate is arranged in an inclined manner, the inclined supporting plate facilitates installation of the water distribution pipe, the supporting area of the water distribution pipe can be increased, and the connection stability of the water distribution pipe is improved.
Further, the left side lower extreme fixedly connected with aeration pipe of casing, the lower extreme fixedly connected with supporting leg of casing, the lower extreme of supporting leg is equipped with the callus on the sole, and the supporting leg that has the callus on the sole that sets up can increase the support stability of supporting leg.
Furthermore, the water distribution pipes are annular, the diameters of the water distribution pipes are larger than those of the branch pipes, and the annular water distribution pipes can distribute water uniformly to the branch pipes, so that the water distribution effect is improved.
Compared with the prior art, the invention has the advantages that:
(1) the water distributor, branch pipe, nozzle stub and the shower nozzle that this scheme set up can be even thorough wash anaerobic membrane filter material layer, have improved the flushing effect, have avoided anaerobic membrane filter material layer local jam to increased bioreactor's purifying effect and purification efficiency, and the water intaking valve, inlet tube, connecting pipe and the control valve that set up not only have the automatic function of controlling the blowdown of intaking, can avoid mud to fall back the inlet tube in addition, improved the convenience in use.
(2) The inner side surface of the water distribution pipe is fixedly connected with branch pipes which are distributed at equal intervals, the distribution plane of the branch pipes and the water distribution pipe are positioned on the same plane, the lower end of each branch pipe is fixedly connected with a short pipe, and the arranged branch pipes can uniformly cover the upper part of the filter material layer, so that the uniformity and the thoroughness of backwashing are improved.
(3) The lower extreme fixedly connected with shower nozzle of nozzle, the lower extreme of shower nozzle are circular, and the lower extreme of shower nozzle is opened there is the orifice, and the orifice is the equidistance and distributes, and the shower nozzle that sets up can increase and wash the area, and the orifice that sets up can increase water pressure moreover to the reinforcing washes the effect.
(4) The diameter of the short pipe is smaller than that of the branch pipe, the short pipe is vertically connected with the branch pipe, the short pipe is distributed at equal intervals, and the branch pipe and the short pipe with decreasing diameters can increase the pressure of water flow and enhance the backwashing effect when the water flow passes through the short pipe and the short pipe.
(5) The surface of the water distribution pipe is fixedly connected with a supporting plate, the lower end of the supporting plate is fixedly connected with a shell, the supporting plate is arranged in an inclined shape, the inclined supporting plate is convenient for mounting the water distribution pipe, the supporting area of the water distribution pipe can be increased, and the connection stability of the water distribution pipe is improved.
(6) The left side lower extreme fixedly connected with aeration pipe of casing, the lower extreme fixedly connected with supporting leg of casing, the lower extreme of supporting leg are equipped with the callus on the sole, and the supporting leg that has the callus on the sole of setting can increase the support stability of supporting leg.
(7) The water distribution pipe is in a ring shape, the diameter of the water distribution pipe is larger than that of the branch pipe, the arranged ring-shaped water distribution pipe can distribute water uniformly to the branch pipe, and the water distribution effect is improved.
Drawings
FIG. 1 is a perspective view of the overall construction of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a partial cross-sectional view of the back-flush tube and housing installation of the present invention;
FIG. 4 is a top view of the structure for mounting water distribution pipes and branch pipes according to the present invention;
fig. 5 is a bottom view of the sprinkler structure of the present invention.
The reference numbers in the figures illustrate:
the device comprises a shell 1, a water outlet area 11, a water outlet pipe 2, a water inlet pipe 3, a water inlet valve 31, a connecting pipe 4, a control valve 41, a sewage discharge pipe 5, a sewage discharge valve 51, a filter material layer 6, a water distribution pipe 7, a branch pipe 71, a short pipe 72, a spray head 73, a 731 spray hole, a support plate 74, a recoil pipe 8, a recoil valve 81, an aeration pipe 9 and support legs 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an anaerobic membrane bioreactor comprises a housing 1, referring to fig. 1-5, a water outlet pipe 2 is fixedly connected to the left side of the housing 1, the water outlet pipe 2 is used for discharging purified water, a connecting pipe 4 is fixedly connected to the bottom of the housing 1, the connecting pipe 4 is used for filtering and purifying sewage conveyed by the water inlet pipe 3 into the housing 1, a control valve 41 is fixedly installed on the surface of the connecting pipe 4, the type of the control valve 41 is 2W-400-40, the control valve 41 is connected with a bioreactor controller in series through a wire, the control valve 41 is used for controlling the opening and closing of the lower end of the connecting pipe 4 and is in a normally closed state, the water inlet pipe 3 is fixedly connected to the left side of the connecting pipe 4, a water inlet valve 31 is installed on the surface of the water inlet pipe 3, the type and the connection mode of the water, the device is used for controlling the opening and closing of a water inlet pipe 3 and is in a normally open state, a drain pipe 5 is fixedly connected to the bottom of a shell 1, the drain pipe 5 is used for discharging sludge filtered in a bioreactor, a drain valve 51 is fixedly mounted on the surface of the drain pipe 5, the drain valve 51 is used for controlling the opening and closing of the drain pipe 5, a filter material layer 6 is arranged in the shell 1, the filter material layer 6 is an anaerobic membrane filter layer, the device belongs to the prior art, the components are standard components or components commonly used by technical manuals, the working principle of the device is known by technical manuals or known by technical manuals, a water outlet area 11 is arranged at the upper end of the filter material layer 6, the water outlet area 11 is communicated with a water outlet pipe 2, a water distribution pipe 7 is fixedly connected in the shell 1, a back flushing pipe 8 is fixedly connected to the right side of the water distribution pipe 7, the back flushing pipe 8 is used for conveying, the other end of the back flushing pipe 8 is connected with a water pump, and belongs to the prior art, the shell 1 is sleeved on the surface of the back flushing pipe 8 in a fixed mode, the back flushing valve 81 is installed on the surface of the back flushing pipe 8 in a fixed mode, and the back flushing valve 81 is used for controlling the back flushing pipe 8 to be opened and closed.
Referring to fig. 3, the inner side surface of the water distribution pipe 7 is fixedly connected with branch pipes 71, the branch pipes 71 are equidistantly distributed, the distribution plane of the branch pipes 71 and the water distribution pipe 7 are in the same plane, the lower end of the branch pipe 71 is fixedly connected with a short pipe 72, the arranged branch pipe 71 can uniformly cover the upper part of the filter material layer 6, the uniformity and the thoroughness of backwashing are increased, the lower end of the short pipe 72 is fixedly connected with a spray head 73, the lower end of the spray head 73 is circular, the lower end of the spray head 73 is provided with spray holes 731, the spray holes 731 are equidistantly distributed, the arranged spray head 73 can increase the washing area, and the arranged spray holes 731 can increase the water pressure.
Referring to fig. 3, the diameter of the short pipe 72 is smaller than that of the branch pipe 71, the short pipe 72 is vertically connected with the branch pipe 71, the short pipes 72 are distributed at equal intervals, the branch pipe 71 and the short pipe 72 with decreasing diameters can increase the pressure of water flow and enhance the back washing effect when water flows through, the surface of the water distribution pipe 7 is fixedly connected with a support plate 74, the lower end of the support plate 74 is fixedly connected with the shell 1, the support plate 74 is arranged in an inclined manner, the inclined support plate 74 facilitates the installation of the water distribution pipe 7, the support area of the water distribution pipe 7 can be increased, and the connection stability of the water distribution pipe 7 is improved.
Referring to fig. 1 and 4, the lower end of the left side of the casing 1 is fixedly connected with an aeration pipe 9, the aeration pipe 9 is used for conveying an air source, and belongs to the prior art, the lower end of the casing 1 is fixedly connected with a supporting leg 10, the lower end of the supporting leg 10 is provided with a foot pad, the supporting leg 10 with the foot pad can increase the supporting stability of the supporting leg 10, the water distribution pipe 7 is in a ring shape, the diameter of the water distribution pipe 7 is larger than that of the branch pipe 71, the ring-shaped water distribution pipe 7 can uniformly distribute water to the branch pipe 71, and the water distribution effect is improved.
When the anaerobic membrane bioreactor backflushs the filter material layer 6, the water inlet valve 31 is controlled to be closed by the bioreactor controller, then the control valve 41 and the blow-down valve 51 are opened, so that the filtered sludge impurities in the raw shell 1 are discharged out of the shell 1 through the lower ends of the connecting pipe 4 and the blow-down pipe 5, then the backflush valve 81 is opened, water flow enters the water distribution pipe 7 through the backflush pipe 8, then the water flow is conveyed into the branch pipe 71 and the short pipe 72 through the water distribution pipe 7, then the filter material layer 6 is backflushed by being sprayed out through the spray holes 731 arranged on the spray head 73, the arranged water distribution pipe 7, the branch pipe 71, the short pipe 72 and the spray head 73 can flush the anaerobic membrane filter material layer 6 uniformly and thoroughly, the flushing effect is improved, the anaerobic membrane filter material layer 6 is prevented from being partially blocked, the purifying effect and the purifying efficiency of the bioreactor are increased, and then the flushed sludge, the sewage is discharged out of the shell 1 through the lower ends of the connecting pipe 4 and the sewage discharge pipe 5, and the arranged water inlet valve 31, the water inlet pipe 3, the connecting pipe 4 and the control valve 41 have the functions of automatically controlling water inlet and sewage discharge, can prevent sludge from falling back to the water inlet pipe 3 and improve the use convenience.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims (7)

1. An anaerobic membrane bioreactor, comprising a housing (1), characterized in that: the water purifier is characterized in that an outlet pipe (2) is fixedly connected to the left side of the shell (1), a connecting pipe (4) is fixedly connected to the bottom of the shell (1), a control valve (41) is installed on the surface of the connecting pipe (4), an inlet pipe (3) is fixedly connected to the left side of the connecting pipe (4), a water inlet valve (31) is installed on the surface of the inlet pipe (3), a blow-off pipe (5) is fixedly connected to the bottom of the shell (1), a blow-off valve (51) is installed on the surface of the blow-off pipe (5), a filter material layer (6) is arranged in the shell (1), a water outlet area (11) is arranged at the upper end of the filter material layer (6), the water outlet area (11) is communicated with the outlet pipe (2), a water distribution pipe (7) is fixedly connected to the shell (1), a back flushing pipe (8) is fixedly connected to the right side of the, and a recoil valve (81) is fixedly arranged on the surface of the recoil pipe (8).
2. The anaerobic membrane bioreactor of claim 1, wherein: the inner side surface of the water distribution pipe (7) is fixedly connected with branch pipes (71), the branch pipes (71) are distributed at equal intervals, the distribution plane of the branch pipes (71) and the water distribution pipe (7) are positioned on the same plane, and the lower ends of the branch pipes (71) are fixedly connected with short pipes (72).
3. The anaerobic membrane bioreactor of claim 2, wherein: the lower end of the short pipe (72) is fixedly connected with a spray head (73), the lower end of the spray head (73) is circular, spray holes (731) are formed in the lower end of the spray head (73), and the spray holes (731) are distributed in an equidistant mode.
4. The anaerobic membrane bioreactor of claim 2, wherein: the diameter of the short pipe (72) is smaller than that of the branch pipe (71), the short pipe (72) is vertically connected with the branch pipe (71), and the short pipes (72) are distributed at equal intervals.
5. The anaerobic membrane bioreactor of claim 1, wherein: the surface of the water distribution pipe (7) is fixedly connected with a supporting plate (74), the lower end of the supporting plate (74) is fixedly connected with a shell (1), and the supporting plate (74) is arranged in an inclined manner.
6. The anaerobic membrane bioreactor of claim 1, wherein: the aeration pipe (9) is fixedly connected to the lower end of the left side of the shell (1), the supporting legs (10) are fixedly connected to the lower end of the shell (1), and foot pads are arranged at the lower ends of the supporting legs (10).
7. The anaerobic membrane bioreactor of claim 1, wherein: the water distribution pipes (7) are circular, and the diameters of the water distribution pipes (7) are larger than those of the branch pipes (71).
CN201911216236.8A 2019-12-02 2019-12-02 Anaerobic membrane bioreactor Pending CN110818082A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911216236.8A CN110818082A (en) 2019-12-02 2019-12-02 Anaerobic membrane bioreactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911216236.8A CN110818082A (en) 2019-12-02 2019-12-02 Anaerobic membrane bioreactor

Publications (1)

Publication Number Publication Date
CN110818082A true CN110818082A (en) 2020-02-21

Family

ID=69542410

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911216236.8A Pending CN110818082A (en) 2019-12-02 2019-12-02 Anaerobic membrane bioreactor

Country Status (1)

Country Link
CN (1) CN110818082A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111876321A (en) * 2020-07-23 2020-11-03 苏州思源环保工程有限公司 Biogas circulation anaerobic membrane biological reaction device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101851043A (en) * 2010-02-04 2010-10-06 同济大学 Integrated air-lift loop dynamic membrane bioreactor
CN202379796U (en) * 2011-12-27 2012-08-15 北京美华博大环境技术研究院有限公司 Coal gasification waste water advanced treatment device
CN103708611A (en) * 2012-09-29 2014-04-09 无锡市兴盛环保设备有限公司 Novel UASB (upflow anaerobic sludge blanket) composite anaerobic reactor
CN107915317A (en) * 2017-12-09 2018-04-17 浙江永立环保股份有限公司 A kind of anaerobic tower water distribution system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101851043A (en) * 2010-02-04 2010-10-06 同济大学 Integrated air-lift loop dynamic membrane bioreactor
CN202379796U (en) * 2011-12-27 2012-08-15 北京美华博大环境技术研究院有限公司 Coal gasification waste water advanced treatment device
CN103708611A (en) * 2012-09-29 2014-04-09 无锡市兴盛环保设备有限公司 Novel UASB (upflow anaerobic sludge blanket) composite anaerobic reactor
CN107915317A (en) * 2017-12-09 2018-04-17 浙江永立环保股份有限公司 A kind of anaerobic tower water distribution system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111876321A (en) * 2020-07-23 2020-11-03 苏州思源环保工程有限公司 Biogas circulation anaerobic membrane biological reaction device

Similar Documents

Publication Publication Date Title
CN102372359B (en) Independent filter head for stable-pressure water distribution and gas distribution of air cushion layer and application method thereof
JP7145544B2 (en) Backwash variable speed upward flow type lightweight filter medium filter with minute water volume and its method
CN108203196A (en) A kind of municipal sewage treatment purifier
CN110818082A (en) Anaerobic membrane bioreactor
CN114790035B (en) Integration MBR sewage treatment system
CN110787494A (en) Inclined tube or inclined plate sedimentation tank with automatic backwashing system
CN203021383U (en) Integrated water purifier for water treatment
CN213834774U (en) Filter element assembly and water purification system
CN212262493U (en) Quartz sand filter
CN201999778U (en) Single-layer pressure integration oil eliminator
CN207877378U (en) A kind of novel cloth hydrophone
CN209985141U (en) Bottom gas device of dispersion tower
CN209872600U (en) Backwashing water purifier
CN203494236U (en) Novel high-efficiency active sand filtering system
RU2356854C1 (en) Bio-reactor-filter
CN203411417U (en) Backflow continuous type filtering purifier
CN112876004A (en) Water plant operation system and process method thereof
CN207330627U (en) Papermaking wastewater treatment system
CN214734960U (en) Coal gasification wastewater two-stage treatment unit
CN101113024B (en) Full-automatic sewage water purifier
CN105776521A (en) Aeration tank water outlet device in MBBR wastewater treatment technology
CN110655263A (en) Environment-friendly domestic sewage treatment ware
CN216808360U (en) High ammonia-nitrogen concentration waste water blows and takes off tower device
CN221141489U (en) Hospital sewage treatment system for accelerating coagulation sedimentation and ozone catalytic oxidation reaction
CN110898480B (en) Waste water standing and flowing purification device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20200221