CN104609558B - A kind of short-cut nitrification and denitrification integrated A BR reactor - Google Patents

A kind of short-cut nitrification and denitrification integrated A BR reactor Download PDF

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CN104609558B
CN104609558B CN201510049630.2A CN201510049630A CN104609558B CN 104609558 B CN104609558 B CN 104609558B CN 201510049630 A CN201510049630 A CN 201510049630A CN 104609558 B CN104609558 B CN 104609558B
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reative cell
district
short distance
water inlet
short
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CN104609558A (en
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黄智�
宿程远
陈孟林
王大华
刘凡凡
孙晓晨
邱锐
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Guangxi Normal University
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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
    • C02F3/302—Nitrification and denitrification treatment
    • 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
    • C02F3/301—Aerobic and anaerobic treatment in the same reactor
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia

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  • 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)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

The invention discloses a kind of short-cut nitrification and denitrification integrated A BR reactor, including cell body (1), main water inlet tube (2), first point of water inlet pipe (3), second point of water inlet pipe (5), biogas discharge (8), micropore aeration pipe (9), breather (10), return duct (11) and outlet pipe (14), described cell body (1) is internal is followed successively by one-level anaerobic zone from first point of water inlet pipe (3) to outlet pipe (14) direction, Wei Bao short distance nitration district and secondary anaerobic district, it is equipped with micropore aeration pipe (9) bottom the reative cell in described Wei Bao short distance nitration district, the ascending zone of each described reative cell is equipped with filler (17).The present invention both can efficient denitrification denitrogenation, can remove again COD, and can effectively solve the problem of sludge loss, be particularly suitable for processing high load capacity high-ammonia-nitrogen sewage.

Description

A kind of short-cut nitrification and denitrification integrated A BR reactor
Technical field
The present invention relates to a kind of short-cut nitrification and denitrification integrated A BR reactor, belong to sewage disposal technology Field.
Background technology
Traditional denitrification process is first at nitrifying process, by NH4 +It is oxidized to NO2 -, it is reoxidised into NO3 -, so After through denitrification process, first by NO3 -Denitrification is NO2 -, then denitrification is N2.The anti-nitre of short distance nitration Change technology, then be to control nitrifying process at NO2 -In the stage, stop NO2 -It is further oxidized to NO3 -, the most first By NH4 +It is oxidized to NO2 -, then directly by NO2 -Denitrification is N2.Short-cut nitrification and denitrification technology and tradition Denitrification process is compared, and has reduction energy consumption, saves the features such as carbon source, sludge yield is few, floor space is few, For nitrogenous higher and that carbon source is not enough waste water, there is the biggest using value.
Current short-cut nitrification and denitrification reactor, has focused largely in the research of sbr reactor device.Due to Sbr reactor device is sequencing batch reactor, possesses aerobic, the time-division stage of anaerobism, anoxic phases, Possess the most again the stage of being thoroughly mixed, be therefore relatively suitable for short-cut nitrification and denitrification technology.But SBR's Batch-type feature, also result in that processing means vacancy rate is high, investment is high, automatization requires that degree is high not Foot.Separately there are some reactors by CSTR (being thoroughly mixed stirring reactor) as single short distance nitre Change reactor, be connected with rearmounted A/O or other anaerobic reactors, also have good effect.But When COD of sewage concentration is higher, needing, preposition anaerobic reactor is set and processes COD in advance, such technology Device complexity, hydraulic parameters is still had to be difficult to the deficiencies such as match control.
ABR reactor (Anaerobic Baffled Reactor, anaerobic baffled reactor) is previous generation Record the new and effective anaerobic reactor of one that proposed by the P.LMcCarty eighties, be referred to as the third generation and detest Oxygen reactor.It is characterized in arranging a series of deflection plate being disposed vertically, by reactor at inside reactor Be divided into multiple reative cell being cascaded, each reative cell can be regarded as one independent UASB (up-flow anaerobic sludge blanket).Owing to being provided with deflection plate in each reative cell so that at water Define the most independent compartment on flow path direction, thus achieve different microbial populations and be grown in not Apposition indoor this purpose, it is achieved thereby that produce acid phase and the separation of methanogenic phase, makes reactor have relatively High treatment effeciency and stronger impact resistance.Individually separate, no simultaneously as ABR has compartment Susceptible, each compartment hydraulic detention time can the advantages such as sets itself, overall structure be simple, if by it In some compartment be set to micro-oxygen short distance nitration room, remaining anaerobism compartment will not be impacted, nitrosation After water outlet flow to anaerobism compartment, effective denitrification denitrogenation can be carried out.Therefore, ABR reacts utensil Technical pattern requirement needed for standby short-cut nitrification and denitrification.
But, traditional ABR reactor there is also some shortcomings, such as when flow velocity is very fast, due to Power on current and two same directions of aerogenesis is present in upstream room, easily causes the sludge stream in compartment Lose, and sludge loss can destroy flora and the environment that each compartment should be fixed, and causes reactor for treatment efficiency Reduction, inside reactor flora even can be caused time serious to inactivate.And if flow velocity is relatively slow, then mud Loss can obtain certain containment, but the sludge stirring of Hui Shi reactor lower floor becomes difficulty, thus extremely District strengthens, and the treatment effeciency of reactor can be affected.Meanwhile, if the COD concentration of water inlet is higher (about Higher than 10000mg/L) time, the biogas disturbance of generation is violent, the most easily makes sludge loss.Therefore, need One to be provided both can effectively realize short-cut nitrification and denitrification, is effectively reduced again the integration of sludge loss ABR reactor.
Summary of the invention
It is an object of the invention to make up the deficiencies in the prior art, it is provided that a kind of short-cut nitrification and denitrification integration ABR reactor, the present invention can effectively realize short-cut nitrification and denitrification, be effectively reduced again sludge loss.
The technical scheme is that a kind of short-cut nitrification and denitrification integration ABR reactor, including cell body, main water inlet tube, first point of water inlet pipe, second point of water inlet pipe, biogas collection Trachea, micropore aeration pipe, breather, return duct and outlet pipe, described main water inlet tube and water intake Connecting, described first point of water inlet pipe and second point of water inlet pipe are all connected with main water inlet tube, inside described cell body Alternate it is provided with multiple dividing plate being perpendicular to bottom cell body, is divided into multiple series connection and phase by inside described cell body The most independent reative cell, all has a deflection plate to be from top to bottom divided into inside described each reative cell Lower current area and ascending zone, the top of the first reative cell of described cell body is provided with intake chamber, and enters with first point Water pipe is connected, and the top of last reative cell is provided with effluent trough, and is connected with outlet pipe, and its feature exists In, it is followed successively by one-level anaerobic zone, micro-exposure to outlet pipe direction from first point of water inlet pipe inside described cell body short Journey nitrification zone and secondary anaerobic district, described one-level anaerobic zone includes >=reative cell of 3, described micro-exposure short distance Nitrification zone includes that the reative cell of 1～2, described secondary anaerobic district include the >=reative cell of 2, described micro- Expose and be equipped with micropore aeration pipe, the reaction in described Wei Bao short distance nitration district bottom the reative cell in short distance nitration district Return duct it is provided with between the bottom of the top of room and the reative cell of one-level anaerobic zone, each described reative cell Ascending zone is equipped with filler, the top of the reative cell in each described one-level anaerobic zone and described secondary anaerobic district Being equipped with biogas discharge, the top of the reative cell in each described Wei Bao short distance nitration district is equipped with ventilation Pipe, the outlet of described second point of water inlet pipe is located at the baffling of first reative cell in described secondary anaerobic district The lower section of plate.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described cell body is cuboid.
Further, the knuckle of described deflection plate is 45 °.
Further, when influent COD is 2000～5000mg/L, and ammonia nitrogen is 50～200mg/L, described One-level anaerobic zone includes that 3 reative cells, described Wei Bao short distance nitration district include 1 reative cell, described two Level anaerobic zone includes being 2 reative cells.
Further, when influent COD is 5000～10000mg/L, and ammonia nitrogen is 200～800mg/L, institute Stating one-level anaerobic zone and include 4 reative cells, described Wei Bao short distance nitration district includes 2 reative cells, described Secondary anaerobic district includes 2 reative cells.
Further, bottom described filler bottom described deflection plate >=20cm, described filler top is away from the water surface ≤30cm。
Further, described filler is suspension type flexible macromolecule filler.
Further, described filler is for attached growth of microorganisms.
Further, the internal diameter of described micropore aeration pipe is 6～12mm, and described micropore aeration pipe is away from the bottom of cell body Distance≤the 10cm in portion, >=5cm.
Further, described micropore aeration pipe is connected with aerator.
Further, in the reative cell in each described Wei Bao short distance nitration district the concentration of dissolved oxygen be 0.5～ 1.0mg/L。
Further, when the reative cell in described Wei Bao short distance nitration district is 1, described return duct is provided with one Root, second that is arranged on the top of first reative cell in Wei Bao short distance nitration district and one-level anaerobic zone anti- Answer between the bottom of room.
Further, when the reative cell in described Wei Bao short distance nitration district is 2, described return duct is provided with two Root, the wherein top of first reative cell being arranged on Wei Bao short distance nitration district and one-level anaerobic zone Between the bottom of second reative cell, another root is arranged on second reative cell in Wei Bao short distance nitration district Between the bottom of first reative cell of top and one-level anaerobic zone.
Further, the water inlet of described return duct is arranged on reative cell upper in described Wei Bao short distance nitration district Portion.
Further, the outlet of described return duct is arranged on the bottom of reative cell of described one-level anaerobic zone.
Further, described return duct is provided with reflux pump, and described reflux pump is for for entering returning of return duct Flowing water provides power.
Further, described return duct is provided with reflux inlet, and described reflux inlet is for regulating from micro-exposure short distance nitre Change the backflow ratio that district is back to the recirculation water of the first anaerobic zone.
Further, described backflow ratio is 20～50%.
Further, produced gas when described breather is to discharge blast aeration.
Further, described second point of water inlet pipe is provided with flow divider, and described flow divider enters from master for regulation Water pipe is diverted to the effluent segregation ratio of second point of water inlet pipe.
Further, described shunt ratio be≤main water inlet tube water inlet total amount 20%.
Further, when influent COD, < 3000mg/L, then open described flow divider, can improve secondary anaerobic The COD in district, increases carbon source, to improve follow-up denitrifying effect.
The invention has the beneficial effects as follows:
1, the present invention using 1～2 reative cell in traditional ABR reactor stage casing as micro-exposure short distance nitration Room, the higher concentration NO of generation2 -Water outlet, a part flows into secondary anaerobic district and carries out denitrification, and a part is returned Flow to one-level anaerobic zone, influent quality can be stablized, reach both can efficient denitrification denitrogenation, can remove again The purpose of COD.
2, the ascending zone of each reative cell of the present invention is equipped with suspension type flexible macromolecule filler, can reduce Reative cell dead band, the problem effectively solving sludge loss, sludge content can be increased, increase ABR reactor Organic loading.
3, the present invention <, opens flow divider, allows a part of waste water directly enter during 3000mg/L at influent COD Enter to secondary anaerobic district, so can improve the COD in secondary anaerobic district, increase carbon source, follow-up to improve Denitrifying effect.
4, present configuration is simple, cost of investment is low, can effectively realize high COD, high ammonia-nitrogen wastewater COD degradation and denitrogenation processing, be particularly suitable for processing high load capacity high-ammonia-nitrogen sewage.
Accompanying drawing explanation
Fig. 1 is the elevation of the present invention.
Fig. 2 is the plane graph of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
1, cell body, 2, main water inlet tube, 3, first point of water inlet pipe, 4, intake chamber, 5, second point is entered Water pipe, 6, dividing plate, 7, deflection plate, 8, biogas discharge, 9, micropore aeration pipe, 10, breather, 11, return duct, 12, return duct water inlet, 13, return duct outlet, 14, outlet pipe, 15, go out Tank, 16, second point of water inlet pipe outlet, 17, filler, 18, reflux pump, 19, reflux inlet, 20, Flow divider.
Detailed description of the invention
Being described principle and the feature of the present invention below in conjunction with accompanying drawing, example is served only for explaining this Invention, is not intended to limit the scope of the present invention.
As depicted in figs. 1 and 2, a kind of short-cut nitrification and denitrification integrated A BR reactor, including cell body 1,3, second point of water inlet pipe 5 of 2, first point of water inlet pipe of main water inlet tube, biogas discharge 8, micropore expose Trachea 9, breather 10, return duct 11 and outlet pipe 14, described main water inlet tube 2 and water intake Connecting, described first point of water inlet pipe 3 is all connected with main water inlet tube 2 with second point of water inlet pipe 5, described pond Body 1 inside is alternate is provided with multiple dividing plate 6 being perpendicular to bottom cell body 1, separates internal for described cell body 1 For multiple series connection and separate reative cell, inside described each reative cell, all there is a folding from top to bottom Stream plate 7 be divided into lower current area and ascending zone, the top of the first reative cell of described cell body 1 be provided with into Tank 4, and be connected with first point of water inlet pipe 3, the top of last reative cell is provided with effluent trough 15, And be connected with outlet pipe 14, it is characterised in that from first point of water inlet pipe 3 to going out inside described cell body 1 Water pipe 14 direction is followed successively by one-level anaerobic zone, Wei Bao short distance nitration district and secondary anaerobic district, described one-level Anaerobic zone includes >=reative cell of 3, and described Wei Bao short distance nitration district includes the reative cell of 1～2, institute State secondary anaerobic district and include >=the reative cell of 2, be equipped with bottom the reative cell in described Wei Bao short distance nitration district Micropore aeration pipe 9, the top of the reative cell in described Wei Bao short distance nitration district and the reative cell of one-level anaerobic zone Bottom between be provided with return duct 11, the ascending zone of each described reative cell is equipped with filler 17, each The top of the reative cell in described one-level anaerobic zone and described secondary anaerobic district is equipped with biogas discharge 8, often The top of the reative cell in individual described Wei Bao short distance nitration district is equipped with breather 10, described second point of water inlet pipe The outlet 16 of 5 is located at the lower section of the deflection plate 7 of first reative cell in described secondary anaerobic district.
Described cell body 1 is cuboid.
The knuckle of described deflection plate 7 is 45 °.
When influent COD is 2000～5000mg/L, and ammonia nitrogen is 50～200mg/L, described one-level anaerobism District includes that 3 reative cells, described Wei Bao short distance nitration district include 1 reative cell, described secondary anaerobic district Including for 2 reative cells.
When influent COD is 5000～10000mg/L, and ammonia nitrogen is 200～800mg/L, described one-level is detested Oxygen district includes that 4 reative cells, described Wei Bao short distance nitration district include 2 reative cells, described secondary anaerobic District includes 2 reative cells.
Bottom described filler 17 bottom described deflection plate 7 >=20cm, described filler 17 top is away from the water surface ≤30cm。
Described filler 17 is suspension type flexible macromolecule filler.
Described filler 17 is for attached growth of microorganisms.
The internal diameter of described micropore aeration pipe 9 is 6～12mm, and described micropore aeration pipe 9 is bottom cell body 1 Distance≤10cm, >=5cm.
Described micropore aeration pipe 9 is connected with aerator.
In the reative cell in each described Wei Bao short distance nitration district, the concentration of dissolved oxygen is 0.5～1.0mg/L.
When the reative cell in described Wei Bao short distance nitration district is 1, described return duct 11 is provided with one, It is arranged on the top of first reative cell in Wei Bao short distance nitration district and second reaction of one-level anaerobic zone Between the bottom of room, i.e. the water inlet 12 of return duct 11 is arranged on first of Wei Bao short distance nitration district instead Answering the top of room, the outlet 13 of return duct 11 is arranged under second reative cell of one-level anaerobic zone Portion.
When the reative cell in described Wei Bao short distance nitration district is 2, described return duct 11 is provided with two, The wherein top and the of one-level anaerobic zone of first reative cell being arranged on Wei Bao short distance nitration district Between the bottom of two reative cells, i.e. the water inlet 12 of return duct 11 is arranged on Wei Bao short distance nitration district The top of first reative cell, the outlet 13 of return duct 11 is arranged on second of one-level anaerobic zone instead Answer the bottom of room；Another root is arranged on the bottom of second reative cell in Wei Bao short distance nitration district and one-level is detested Between the top of first reative cell in oxygen district, i.e. the water inlet 12 of another root return duct 11 is arranged on micro- Exposing the top of second reative cell in short distance nitration district, the outlet 13 of another root return duct 11 is arranged on The bottom of first reative cell of one-level anaerobic zone.
Described return duct 11 is provided with reflux pump 18, and described reflux pump 18 is for for entering return duct 11 Recirculation water provide power.
Described return duct 11 is provided with reflux inlet 19, and described reflux inlet 19 is for regulating from micro-exposure short distance nitre Change the backflow ratio that district is back to the recirculation water of the first anaerobic zone.
Described backflow ratio is 20～50%.
Produced gas when described breather 10 is to discharge blast aeration.
Described second point of water inlet pipe 5 is provided with flow divider 20, and described flow divider 20 enters from master for regulation Water pipe 1 is diverted to the effluent segregation ratio of second point of water inlet pipe 5.
Described shunt ratio is≤main water inlet tube 1 intakes the 20% of total amount.
When influent COD, < 3000mg/L then opens described flow divider 20, can improve secondary anaerobic district COD, increases carbon source, to improve follow-up denitrifying effect.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all in the present invention Spirit and principle within, any modification, equivalent substitution and improvement etc. made, should be included in this Within bright protection domain.

Claims (9)

1. a short-cut nitrification and denitrification integrated A BR reactor, including cell body (1), main water inlet tube (2), first point of water inlet pipe (3), second point of water inlet pipe (5), biogas discharge (8), micropore Aeration tube (9), breather (10), return duct (11) and outlet pipe (14), described main water inlet Pipe (2) is connected with water intake, described first point of water inlet pipe (3) and second point of water inlet pipe (5) All being connected with main water inlet tube (2), described cell body (1) inside is alternate is provided with multiple being perpendicular to bottom cell body Dividing plate (6), be divided into multiple series connection and separate reative cell by internal for described cell body (1), A deflection plate (7) from top to bottom is all had to be divided into lower current area and upper inside described each reative cell Stream district, the top of the first reative cell of described cell body (1) is provided with intake chamber (4), and enters with first point Water pipe (3) is connected, and the top of last reative cell is provided with effluent trough (15), and with outlet pipe (14) Be connected, it is characterised in that described cell body (1) internal from first point of water inlet pipe (3) to outlet pipe (14) Direction is followed successively by one-level anaerobic zone, Wei Bao short distance nitration district and secondary anaerobic district, and described one-level anaerobic zone is wrapped Including >=the reative cell of 3, described Wei Bao short distance nitration district includes the reative cell of 1～2, detests for described two grades Oxygen district includes >=reative cell of 2, it is equipped with micro-pore aeration bottom the reative cell in described Wei Bao short distance nitration district Pipe (9), under the top of reative cell in described Wei Bao short distance nitration district and the reative cell of one-level anaerobic zone Being provided with return duct (11) between portion, the ascending zone of each described reative cell is equipped with filler (17), often The top of the reative cell in individual described one-level anaerobic zone and described secondary anaerobic district is equipped with biogas discharge (8), the top of the reative cell in each described Wei Bao short distance nitration district is equipped with breather (10), institute The outlet (16) stating second point of water inlet pipe (5) is located at first reative cell in described secondary anaerobic district The lower section of deflection plate (7).
A kind of short-cut nitrification and denitrification integrated A BR reactor the most according to claim 1, its It is characterised by, when influent COD is 2000～5000mg/L, and ammonia nitrogen is 50～200mg/L, described one Level anaerobic zone includes that 3 reative cells, described Wei Bao short distance nitration district include 1 reative cell, described two grades Anaerobic zone includes being 2 reative cells.
A kind of short-cut nitrification and denitrification integrated A BR reactor the most according to claim 1, its It is characterised by, when influent COD is 5000～10000mg/L, and ammonia nitrogen is 200～800mg/L, described One-level anaerobic zone includes that 4 reative cells, described Wei Bao short distance nitration district include 2 reative cells, described two Level anaerobic zone includes 2 reative cells.
A kind of short-cut nitrification and denitrification integrated A BR reactor the most according to claim 1, its Being characterised by, described filler (17) bottom is away from described deflection plate (7) bottom >=20cm, described filler (17) Top is away from the water surface≤30cm.
A kind of short-cut nitrification and denitrification integrated A BR reactor the most according to claim 4, its Being characterised by, described filler (17) is suspension type flexible macromolecule filler.
A kind of short-cut nitrification and denitrification integrated A BR reactor the most according to claim 1, its Being characterised by, the internal diameter of described micropore aeration pipe (9) is 6～12mm, described micropore aeration pipe (9) Distance≤10cm, >=5cm away from cell body (1) bottom.
A kind of short-cut nitrification and denitrification integrated A BR reactor the most according to claim 1, its Be characterised by, in the reative cell in each described Wei Bao short distance nitration district the concentration of dissolved oxygen be 0.5～ 1.0mg/L。
8. according to a kind of short-cut nitrification and denitrification integrated A BR described in any one of claim 1 to 7 Reactor, it is characterised in that when the reative cell in described Wei Bao short distance nitration district is 1, described backflow Pipe (11) is provided with one, and the top and the one-level that are arranged on first reative cell in Wei Bao short distance nitration district are detested Between the bottom of second reative cell in oxygen district.
A kind of short-cut nitrification and denitrification integrated A BR reactor the most according to claim 1, its Being characterised by, when the reative cell in described Wei Bao short distance nitration district is 2, described return duct (11) sets There are two, wherein the top of first reative cell being arranged on Wei Bao short distance nitration district and one-level anaerobism Between the bottom of second reative cell in district, another root is arranged on second reaction in Wei Bao short distance nitration district Between the bottom of the top of room and first reative cell of one-level anaerobic zone.
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CN106219749A (en) * 2016-09-23 2016-12-14 北京林业大学 A kind of process in the HABR technical method of the nitrogenous organic wastewater of low concentration and equipment
CN106745807A (en) * 2016-12-22 2017-05-31 江苏鼎泽环境工程有限公司 A kind of CAR reactors
CN107804910A (en) * 2017-11-24 2018-03-16 苏州科技大学 A kind of integrated energy-saving consumption reduction sewage disposal system
CN107758863A (en) * 2017-11-27 2018-03-06 河北中科威德环境工程有限公司 Anaerobic baffled reactor
CN110498509B (en) * 2019-08-22 2023-09-22 广西师范大学 High ammonia nitrogen sewage treatment device and sewage treatment method using same
CN110713256A (en) * 2019-10-14 2020-01-21 上海理工大学 Biological pipe culvert reaction unit
CN112707503B (en) * 2020-11-20 2022-01-14 江苏大学 Baffling type anaerobic biological nest integrated nitrogen and carbon removal device and nitrogen and carbon removal process

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CN202046977U (en) * 2011-05-16 2011-11-23 徐州工程学院 Anaerobic-aerobic integrated reactor
CN102838255B (en) * 2012-08-23 2014-04-16 辽宁工程技术大学 Cage-shaped filler type device for treating beer waste water in anaerobic-anoxic-aerobic mode and method for treating bear waste water by using device
CN102897917B (en) * 2012-10-31 2014-08-13 华北水利水电学院 Domestic sewage non-backflow denitrification treatment device and method
CN103523915A (en) * 2013-10-17 2014-01-22 陕西盛迈石油有限公司 Anaerobic baffled reactor
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