CN111995054A - Sewage treatment device - Google Patents

Sewage treatment device Download PDF

Info

Publication number
CN111995054A
CN111995054A CN202010960739.2A CN202010960739A CN111995054A CN 111995054 A CN111995054 A CN 111995054A CN 202010960739 A CN202010960739 A CN 202010960739A CN 111995054 A CN111995054 A CN 111995054A
Authority
CN
China
Prior art keywords
shell
partition
partition plate
bottom opening
guide
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
CN202010960739.2A
Other languages
Chinese (zh)
Inventor
张泽玺
王宝山
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.)
Lanzhou Jiaotong University
Original Assignee
Lanzhou Jiaotong University
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 Lanzhou Jiaotong University filed Critical Lanzhou Jiaotong University
Priority to CN202010960739.2A priority Critical patent/CN111995054A/en
Publication of CN111995054A publication Critical patent/CN111995054A/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
    • C02F3/30Aerobic and anaerobic processes
    • C02F3/301Aerobic and anaerobic treatment in the same reactor
    • 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
    • C02F3/30Aerobic and anaerobic processes
    • C02F3/308Biological phosphorus removal
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/16Nitrogen compounds, e.g. ammonia

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

The invention provides a sewage treatment device, which comprises a shell, wherein a sludge discharge pipe and a water inlet pipe are arranged on the bottom wall of the shell, an aeration device is arranged at the center of the bottom of the shell, a partition plate cylinder is arranged above the aeration device, a guide cylinder is arranged outside the partition plate cylinder, the top opening and the bottom opening of the partition plate cylinder are horizontally arranged, and an aerobic microorganism packing layer is arranged at the position of the bottom opening of the partition plate cylinder, so that aerated water passes through the aerobic microorganism packing layer and then enters the partition plate cylinder; the shape of the guide shell is matched with that of the partition shell, and the height of the bottom opening of the guide shell is higher than that of the bottom opening of the partition shell; an annular overflow weir is arranged around the top opening of the shell, and the height of the annular overflow weir is lower than that of the top opening of the guide shell. The technical scheme provided by the invention can efficiently treat domestic sewage, and sewage and sludge in the device circulate under the action of the aeration device, so that a sludge backflow device is omitted.

Description

Sewage treatment device
Technical Field
The invention relates to the technical field of water treatment, in particular to a sewage treatment device which is suitable for small-scale sewage treatment in urban and rural areas.
Background
Along with social development, rural water consumption is gradually increased, sewage discharge is increased, rural sewage treatment facilities are relatively backward constructed, and a complete sewage collecting, treating and discharging system is not established in most rural areas, so that the disordered discharge of rural domestic sewage is caused, the pollution of rural natural water and soil is caused, and the threat to the living environment of local residents is caused.
Rural sewage has the characteristics of scattered sources, small water quantity, large coefficient of variation and the like, and the conventional sewage treatment device has high investment cost, relatively complex operation management and certain limitation on the treatment of the rural sewage, so that a sewage treatment device suitable for rural areas needs to be researched.
Disclosure of Invention
The embodiment of the invention provides a sewage treatment device, which solves the problem of sewage treatment in rural areas.
A sewage treatment device comprises a shell with a bottom plug and an open top, wherein a sludge discharge pipe and a water inlet pipe are arranged on the bottom wall of the shell, the water inlet pipe and the sludge discharge pipe are arranged at intervals, the height of a pipe orifice of the water inlet pipe is higher than that of the pipe orifice of the sludge discharge pipe, an aeration device is arranged at the center of the bottom of the shell, the height of the aeration device is higher than that of the pipe orifice of the water inlet pipe, a partition plate cylinder with a small top opening and a large bottom opening is arranged above the aeration device, a guide cylinder is arranged outside the partition plate cylinder, the top opening and the bottom opening of the partition plate cylinder are both horizontally arranged, and an aerobic microorganism packing layer is arranged at the position of the bottom opening of the partition plate cylinder, so that aerated water passes through the aerobic microorganism packing layer and then enters the partition plate cylinder; the shape of the guide shell is matched with that of the partition shell, the height of the top opening of the guide shell is higher than that of the top opening of the partition shell, and a gap is reserved between the guide shell and the partition shell to form an overflowing channel so that overflow at the top of the partition shell is guided downwards to the bottom opening of the guide shell along the overflowing channel, the height of the bottom opening of the guide shell is higher than that of the bottom opening of the partition shell, so that backflow water is accumulated outside the bottom opening of the guide shell and the bottom opening of the partition shell and is promoted to flow upwards along the space between the guide shell and the side wall of the shell, and distances are reserved among the bottom opening of the guide shell, the bottom opening of the partition shell, the side wall of the shell and the bottom wall of the shell, an anoxic zone is formed between the anaerobic zone and the anoxic zone, an anaerobic zone is formed at the inner side of the bottom opening of the ring partition cylinder, and the exchange of water flow between the anaerobic zone and the anoxic zone is carried out below the bottom opening of the partition cylinder; an annular overflow weir is arranged around the top opening of the shell, and the height of the annular overflow weir is lower than that of the top opening of the guide shell.
The carrier of the aerobic microorganism packing layer is a microporous fiber bundle packing, and aerobic microorganisms are attached to the fiber bundle packing.
The aeration device is provided with an air suction tube, and the air suction tube penetrates through the aerobic microorganism packing layer and extends out of the partition plate tube, or the air suction tube penetrates through the bottom wall of the shell and extends out of the shell.
The aeration device is a centrifugal submersible aerator.
The side wall of the shell is cylindrical, the bottom wall is frustum-shaped,
a pumping device is arranged on the water inlet pipe to inject water flow into the shell; and a stop valve is arranged on the water inlet pipe to prevent water in the shell from flowing reversely along the water inlet pipe.
The upper part of the partition plate cylinder is a column cylinder, and the lower part of the partition plate cylinder is a cone cylinder; the upper part of the guide shell is a column shell, and the lower part of the guide shell is a cone shell.
The shell, the partition plate cylinder and the guide cylinder are made of organic glass.
The technical scheme provided by the invention can efficiently treat domestic sewage, and sewage and sludge in the device circulate under the action of the aeration device, so that a sludge backflow device is omitted. The screening of sludge activity is realized in the circulation process, a carbon source required by an anaerobic zone is provided by a water inlet at the bottom, and the nitrogen and phosphorus removal effect is improved by the complete structures of an aerobic zone, an anoxic zone and an anaerobic zone in the device; the invention can adopt a buried design with better heat preservation effect. The whole device has simple structure, easy control and low investment cost, and has good practicability and popularization prospect in the aspect of sewage treatment in urban and rural areas.
Through the field test of domestic sewage in the domestic family area of a university, COD in the sewageCr420 to 610 mg/L, BOD5185 to 280 mg/L of NH3N is 46-56 mg/L, TP is 11.5-16.8 mg/L, SS is 185-255 mg/L, and pH is 6.7-7.2. The sewage treatment device has good sewage treatment effect when the hydraulic retention time is 3 hours, the dissolved oxygen is 2.0 mg/L and the sludge is discharged for 2L every day, and the device is suitable for sewage treatmentThe removal rate of COD can reach more than 90 percent, and BOD5The removal rate can reach more than 92 percent, NH3The removal rate of-N can reach more than 98 percent, and the removal rate of total phosphorus can reach more than 70 percent.
Drawings
Fig. 1 is a general structural view.
In the figure: 1. a housing; 2. a diaphragm cartridge; 3. a draft tube; 4. a water inlet pipe; 5. a sludge discharge pipe; 6. an annular overflow weir; 7. an overflow channel; 8. an aerobic zone; 9. a clear water zone; 10. a sludge zone; 11. an anoxic zone; 12. an anaerobic zone; 13. an aeration device; 14. an air suction cylinder; 15. an aerobic microorganism packing layer.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is in no way limited to any specific configuration and algorithm set forth below, but rather covers any modification, replacement or improvement of elements, components or algorithms without departing from the spirit of the invention. In the following description, well-known structures and techniques are not shown in order to avoid unnecessarily obscuring the present invention.
Example embodiments will now be described with reference to the accompanying drawings, which may be embodied in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the invention.
As shown in fig. 1, the present embodiment provides a sewage treatment device, which includes a housing 1 with a bottom plug and a top opening, a sludge discharge pipe 5 and a water inlet pipe 4 are arranged on the bottom wall of the housing 1, the water inlet pipe 4 and the sludge discharge pipe 5 are arranged at intervals, the height of the pipe orifice of the water inlet pipe 3 is higher than the height of the pipe orifice of the sludge discharge pipe 5, an aeration device 13 is arranged at the bottom center of the housing 1, the height of the aeration device 13 is higher than the height of the pipe orifice of the water inlet pipe, a partition cylinder 2 with a small top opening and a large bottom opening is arranged above the aeration device 13, a guide cylinder 3 is arranged outside the partition cylinder 2, the top opening and the bottom opening of the partition cylinder 2 are both arranged horizontally, and an aerobic microorganism packing layer 15 is arranged at the bottom opening of the partition cylinder 2, so that the aerated water passes through the aerobic microorganism packing layer and then enters the partition cylinder 2; the shape of the guide shell 3 is matched with that of the clapboard barrel 2, the height of the top opening of the guide shell 3 is higher than that of the top opening of the clapboard barrel 2, and a gap is reserved between the guide shell 3 and the partition shell 2 to form an overflowing channel 7 so that the overflow at the top of the partition shell is guided downwards to the bottom opening of the guide shell 3 along the overflowing channel 7, the height of the bottom opening of the guide shell 3 is higher than that of the bottom opening of the partition shell 2, so that the backflow water is accumulated outside the bottom opening of the guide shell 3 and the bottom opening of the partition shell 2 and is promoted to flow upwards along the guide shell 3 and the side wall of the shell, distances are reserved between the bottom opening of the guide shell 3 and the bottom opening of the partition shell 2 and between the side wall and the bottom wall of the shell 1, so as to form an anoxic zone 11 between them, an anaerobic zone 12 is formed inside the bottom opening of the ring partition cylinder, and the exchange of water flow between the anaerobic zone 12 and the anoxic zone 11 is carried out below the bottom opening of the partition cylinder 2; an annular overflow weir is arranged around the top opening of the shell 1, and the height of the annular overflow weir is lower than that of the top opening of the guide shell.
Optionally, the sewage treatment device provided by the embodiment of the invention is buried under the ground, and raw water enters the device through the water inlet pipe 4 under the action of gravity. The aeration device 13 adopts a centrifugal submersible aerator which is arranged on one side of the water inlet pipe 4, the height of the aerator is slightly higher than that of the water inlet 4, and the air flow generated by the aerator drives sludge and sewage at the bottom of the shell to turn upwards and flow to the aerobic zone 8. The aerobic microorganism packing layer 15 is provided with fiber bundle packing, which provides necessary carriers for microorganisms and improves the biochemical treatment efficiency of the aerobic zone 8.
The height of the baffle plate 2 is lower than that of the guide plate 3, sewage and sludge which are turned up at the top of the aerobic zone 8 flow to the overflowing channel 7 formed by the baffle plate 2 and the guide plate 3, and under the action of gravity, mud and water are separated. A sludge area 10 and a clear water area 9 are formed between the guide plate 3 and the shell 1, an annular overflow weir 6 is arranged at the top of the clear water area 9, and the treated sewage is discharged through the annular overflow weir 6. With the continuous consumption of oxygen in the shell, an anoxic zone 11 and an anaerobic zone 12 are formed in the sludge zone 10, and a sludge discharge pipe 5 is arranged at the bottom of the shell.
Macromolecular organic matters in the anoxic zone 11 are degraded into micromolecular organic matters, and nitrate and nitrite are reduced into N2Or NO, NO2 The generated gas is discharged from the clapboard, and the phosphorus accumulating bacteria release inorganic phosphorus.
Micromolecular organic matters in the aerobic zone 8 are further degraded, organic nitrogen compounds are converted into ammoniated nitrogen, the ammoniated nitrogen is converted into nitrate and nitrite under the action of nitrifying bacteria and nitrosobacteria, and phosphorus is stored in bacteria in a polymerized form by phosphorus accumulating bacteria.
The raw water entering the shell supplements carbon sources required by the anaerobic zone 12, and the sludge and sewage circulating in the shell enhance the denitrification and dephosphorization effects.
The carrier of the aerobic microbe packing layer 15 is a microporous fiber bundle packing, and aerobic microbes are attached to the fiber bundle packing.
The aeration device is provided with an air suction cylinder 14, and the air suction cylinder 14 penetrates through the aerobic microorganism packing layer 15 and extends out of the clapboard cylinder, or the air suction cylinder 14 penetrates through the bottom wall of the shell and extends out of the shell 1.
The lateral wall of casing 1 is cylindrical, and the diapire is frustum shape to form annular inclined plane around the diapire, be convenient for mud and flow along the diapire, exchange between anaerobic zone, anoxic zone.
A pumping device is arranged on the water inlet pipe 4 to inject water flow into the shell; and a stop valve is arranged on the water inlet pipe to prevent water in the shell from flowing reversely along the water inlet pipe.
The upper part of the partition plate cylinder 2 is a column cylinder, and the lower part of the partition plate cylinder is a cone cylinder; the upper part of the guide shell 3 is a column shell, and the lower part of the guide shell is a cone shell. The column cylinder can be a cylinder or a prism, and the corresponding cone cylinder can be a cone or a pyramid.
Casing 1, a baffle section of thick bamboo 2, draft tube 3 adopt organic glass to make, and organic glass can be corrosion-resistant, and self intensity is high, and the surface is smooth, the washing of being convenient for to can follow the inside state of outside observation.
The technical scheme provided by the invention can efficiently treat domestic sewage, and sewage and sludge in the device circulate under the action of the aeration device, so that a sludge backflow device is omitted. The screening of sludge activity is realized in the circulation process, a carbon source required by an anaerobic zone is provided by a water inlet at the bottom, and the nitrogen and phosphorus removal effect is improved by the complete structures of an aerobic zone, an anoxic zone and an anaerobic zone in the device; the invention can adopt a buried design with better heat preservation effect. The whole device has simple structure, easy control and low investment cost, and has good practicability and popularization prospect in the aspect of sewage treatment in urban and rural areas.
Through the field test of domestic sewage in the domestic family area of a university, COD in the sewageCr420 to 610 mg/L, BOD5185 to 280 mg/L of NH3N is 46-56 mg/L, TP is 11.5-16.8 mg/L, SS is 185-255 mg/L, and pH is 6.7-7.2. The sewage treatment device has the advantages that the sewage treatment effect is good when the hydraulic retention time is 3 hours, the dissolved oxygen is 2.0 mg/L and the sludge is discharged for 2L every day, the removal rate of COD can reach more than 90 percent, and BOD (biochemical oxygen demand)5The removal rate can reach more than 92 percent, NH3The removal rate of-N can reach more than 98 percent, and the removal rate of total phosphorus can reach more than 70 percent.
It will be appreciated by persons skilled in the art that the above embodiments are illustrative and not restrictive. Different features which are present in different embodiments may be combined to advantage. Other variations to the disclosed embodiments can be understood and effected by those skilled in the art upon studying the specification and the claims. In the claims, the term "comprising" does not exclude other means or steps; the indefinite article "a" does not exclude a plurality; the terms "first" and "second" are used to denote a name and not to denote any particular order.

Claims (7)

1. A sewage treatment device comprises a shell with a bottom plug and an opening at the top, and is characterized in that a sludge discharge pipe and a water inlet pipe are arranged on the bottom wall of the shell, the water inlet pipe and the sludge discharge pipe are arranged at intervals, the height of the pipe orifice of the water inlet pipe is higher than that of the pipe orifice of the sludge discharge pipe, an aeration device is arranged at the center of the bottom of the shell, the height of the aeration device is higher than that of the pipe orifice of the water inlet pipe, a partition plate cylinder with a small top opening and a large bottom opening is arranged above the aeration device, a guide cylinder is arranged outside the partition plate cylinder, the top opening and the bottom opening of the partition plate cylinder are both horizontally arranged, an aerobic microorganism packing layer is arranged at the position of the bottom opening of the partition plate cylinder, and water after aeration enters the partition plate cylinder after passing through the aerobic microorganism packing layer; the shape of the guide shell is matched with that of the partition shell, the height of the top opening of the guide shell is higher than that of the top opening of the partition shell, and a gap is reserved between the guide shell and the partition shell to form an overflowing channel so that overflow at the top of the partition shell is guided downwards to the bottom opening of the guide shell along the overflowing channel, the height of the bottom opening of the guide shell is higher than that of the bottom opening of the partition shell, so that backflow water is accumulated outside the bottom opening of the guide shell and the bottom opening of the partition shell and is promoted to flow upwards along the space between the guide shell and the side wall of the shell, and distances are reserved among the bottom opening of the guide shell, the bottom opening of the partition shell, the side wall of the shell and the bottom wall of the shell, an anoxic zone is formed between the anaerobic zone and the anoxic zone, an anaerobic zone is formed at the inner side of the bottom opening of the ring partition cylinder, and the exchange of water flow between the anaerobic zone and the anoxic zone is carried out below the bottom opening of the partition cylinder; an annular overflow weir is arranged around the top opening of the shell, and the height of the annular overflow weir is lower than that of the top opening of the guide shell.
2. The sewage treatment apparatus of claim 1,
the carrier of the aerobic microorganism packing layer is a microporous fiber bundle packing, and aerobic microorganisms are attached to the fiber bundle packing.
3. The sewage treatment apparatus of claim 1,
the aeration device is provided with an air suction tube, and the air suction tube penetrates through the aerobic microorganism packing layer and extends out of the partition plate tube, or the air suction tube penetrates through the bottom wall of the shell and extends out of the shell.
4. The sewage treatment apparatus of claim 1,
the aeration device is a centrifugal submersible aerator.
5. The sewage treatment apparatus of claim 1,
the side wall of the shell is cylindrical, the bottom wall is frustum-shaped,
the sewage treatment apparatus of claim 1,
a pumping device is arranged on the water inlet pipe to inject water flow into the shell; and a stop valve is arranged on the water inlet pipe to prevent water in the shell from flowing reversely along the water inlet pipe.
6. The sewage treatment apparatus of claim 1,
the upper part of the partition plate cylinder is a column cylinder, and the lower part of the partition plate cylinder is a cone cylinder; the upper part of the guide shell is a column shell, and the lower part of the guide shell is a cone shell.
7. The sewage treatment apparatus of claim 1,
the shell, the partition plate cylinder and the guide cylinder are made of organic glass.
CN202010960739.2A 2020-09-14 2020-09-14 Sewage treatment device Pending CN111995054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010960739.2A CN111995054A (en) 2020-09-14 2020-09-14 Sewage treatment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010960739.2A CN111995054A (en) 2020-09-14 2020-09-14 Sewage treatment device

Publications (1)

Publication Number Publication Date
CN111995054A true CN111995054A (en) 2020-11-27

Family

ID=73469297

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010960739.2A Pending CN111995054A (en) 2020-09-14 2020-09-14 Sewage treatment device

Country Status (1)

Country Link
CN (1) CN111995054A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110163022A1 (en) * 2009-02-04 2011-07-07 Vladimir Petrovich Kolesnikov Integrated sewage treatment plant
CN102372362A (en) * 2011-09-30 2012-03-14 东北林业大学 Integrated biomembrane and granule sludge coupling reactor and method for synchronously removing nitrogen and phosphorus from sewage
EP2468686A1 (en) * 2010-12-21 2012-06-27 Vladimir Petrovich Kolesnikov Integrated wastewater purification assembly
CN104961232A (en) * 2015-06-16 2015-10-07 徐州工程学院 Vertical integral sewage treatment plant
CN106242050A (en) * 2016-07-27 2016-12-21 广州鹏凯环境科技股份有限公司 Circular integration sewage disposal device in a kind of vertical low energy consumption
CN107698025A (en) * 2017-11-08 2018-02-16 中机国际工程设计研究院有限责任公司 Integrated sewage water denitrification dephosphorization apparatus
CN110606568A (en) * 2019-11-06 2019-12-24 众意环保科技(大连)有限公司 Integrated A with embedded precipitation structure2/O biochemical tower
CN210313702U (en) * 2019-06-28 2020-04-14 苏州依斯倍环保装备科技有限公司 Integrated synchronous nitrification and denitrification device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110163022A1 (en) * 2009-02-04 2011-07-07 Vladimir Petrovich Kolesnikov Integrated sewage treatment plant
EP2468686A1 (en) * 2010-12-21 2012-06-27 Vladimir Petrovich Kolesnikov Integrated wastewater purification assembly
CN102372362A (en) * 2011-09-30 2012-03-14 东北林业大学 Integrated biomembrane and granule sludge coupling reactor and method for synchronously removing nitrogen and phosphorus from sewage
CN104961232A (en) * 2015-06-16 2015-10-07 徐州工程学院 Vertical integral sewage treatment plant
CN106242050A (en) * 2016-07-27 2016-12-21 广州鹏凯环境科技股份有限公司 Circular integration sewage disposal device in a kind of vertical low energy consumption
CN107698025A (en) * 2017-11-08 2018-02-16 中机国际工程设计研究院有限责任公司 Integrated sewage water denitrification dephosphorization apparatus
CN210313702U (en) * 2019-06-28 2020-04-14 苏州依斯倍环保装备科技有限公司 Integrated synchronous nitrification and denitrification device
CN110606568A (en) * 2019-11-06 2019-12-24 众意环保科技(大连)有限公司 Integrated A with embedded precipitation structure2/O biochemical tower

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李国亭等: "《环境学概论》", 31 October 2016, 哈尔滨工业大学出版社 *

Similar Documents

Publication Publication Date Title
CN104150716A (en) Biology processing apparatus capable of processing sewage at low-temperature with low carbon-nitrogen-ratio in cold region and method for processing sewage at low-temperature with low carbon-nitrogen-ratio in cold region
CN201530770U (en) Deepwater combination biological treatment facility
CN103936234B (en) A kind of domestic sewage processing system and treatment process thereof utilizing sun power
CN103253770A (en) Integrated biological reactor for treatment of industrial wastewater and domestic sewage
CN106116045A (en) A kind of efficiently villages and small towns waste water treating and reutilizing device and technique thereof
CN102320689A (en) Continuous flow granular sludge reactor and running method
CN218910039U (en) Efficient mud membrane symbiotic denitrification and dephosphorization sewage treatment system
CN107216004B (en) Domestic sewage treatment system and method
CN104310584B (en) Aerobic particle mud integrated sewage disposal facility and method
CN105923771A (en) Self-circulation biological denitrification reactor
CN203513359U (en) Integrated bioreactor for treating industrial wastewater and domestic wastewater
CN206970300U (en) Nitrification liquid reflux and biological reaction pool for biological reaction pool
CN210001652U (en) Excrement collecting sewage recycling treatment device and system
CN210030322U (en) Multi-system composite coupling treatment device for eutrophic sewage
CN210001734U (en) Excrement collecting sewage recycling treatment device and system
CN204675952U (en) The buried sewage treatment equipment that a kind of low noise sound pitch is integrated
CN106745737A (en) A kind of short distance nitration Anammox manifold type denitrification reactor
CN206467036U (en) Short distance nitration Anammox manifold type denitrification reactor
CN111995054A (en) Sewage treatment device
CN105366808B (en) A kind of three-ring type synchronization carbon and nitrogen removal bioreactor
CN205973964U (en) Suspension bed sewage treatment system of embedded carrier of formula of burying solidification microorganism
CN114477450A (en) Enhanced domestic sewage nitrogen and phosphorus removal treatment device and treatment method
CN114671574A (en) Sewage treatment device
CN209778596U (en) Circulating denitrification biomembrane reactor
CN106630486A (en) Sewage treatment system of dairy breeding farm

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: 20201127