CN107739094A - A kind of efficient denitrification reaction system and method - Google Patents
A kind of efficient denitrification reaction system and method Download PDFInfo
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- CN107739094A CN107739094A CN201710954585.4A CN201710954585A CN107739094A CN 107739094 A CN107739094 A CN 107739094A CN 201710954585 A CN201710954585 A CN 201710954585A CN 107739094 A CN107739094 A CN 107739094A
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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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- 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
Abstract
The present invention relates to a kind of efficient denitrification reaction system and method.Including water inlet end, half short distance nitration reaction zone, sludge settling area, Anammox reaction zone, circulating pump, membrane biological reaction area, water side, sewage enters half short distance nitration reaction zone after water inlet end adjusts pH value, ammonia nitrogen in half short distance nitration reaction zone sewage flow to the sludge settling area after being partially converted into cultured water, sewage subsequently flows into the Anammox reaction zone and is sufficiently mixed with anaerobic ammonium oxidation sludge, ammonia nitrogen in sewage, cultured water is converted into nitrate nitrogen in the presence of the anaerobic ammonium oxidation sludge, nitrogen, then complete sewage and mud mixture are reacted in the Anammox area and enters the membrane biological reaction area through the circulating pump, after membrane module, pass through water side outflow system.Beneficial effects of the present invention are fast to start, and efficiency high, standard water discharge rate are high.
Description
Technical field
The invention belongs to technical field of sewage, it particularly relates to a kind of efficient denitrification reaction system and method.
Background technology
Traditional handicraft consumes the substantial amounts of energy and resource (carbon source) while reliable and stable solution eutrophication.
Sewage disposal recycling, today of energy are emphasized, it is general by industry as the denitrogenation technology of core using short distance nitration, Anammox
All over the important technology for being considered as following sewage disposal development, and control condition make it that short distance nitration occurs for the ammonia nitrogen of half, i.e., half is short
Journey nitrifies, and combines anaerobism ammonia oxygen technique to realize that efficient denitrification has turned into the study hotspot of current denitrification process.
Short-cut nitrification technology makes nitration reaction control in nitrous acid phase, with tradition mainly by controlling process conditions
Nitration reaction compare, save 25% or so oxygen demand, while sludge yield reduce 24%-33%.Half short distance nitration refers to sewage
In the ammonia nitrogen of only half short distance nitration occurs, the consumption of the energy and resource further reduces.Combined with anaerobism ammonia oxygen technique, after being
Continuous Anammox reaction provides favourable reaction condition, realizes efficient denitrification.
Anaerobic ammonia oxidation process is a kind of bio-denitrification technology, and by its low oxygen-supplying amount, organic matter demand is low, technique is held
The factors such as product efficiency height are praised highly as the bio-denitrification technology of more economical and efficient.However, anaerobic ammonia oxidation process actually should
There is the problems such as anaerobic sludge domestication incubation time is long, enrichment difficulty is big in the used time, cause the engineering to be promoted and make slow progress.
At present, membrane bioreactor enjoys green grass or young crops because of the advantages that its sludge concentration is high, biological treatment load is high, floor space is few
Look at.The present invention is combined using half short-cut nitrification technology, anaerobic ammonia oxidation process with membrane bioreactor, reduces oxygen demand, section
Carbon source is saved, reduces sludge yield, while realizes that anaerobic sludge is kept completely separate with hydrone, the biology for not changing anaerobic sludge is special
Property, and be recovered in time in system, sludge loss is avoided, shortens the cultivation cycle of biological flora, has and starts soon, efficiency high,
The features such as standard water discharge rate is high.
The content of the invention
For problem above, the present invention provides a kind of half short distance nitration-anaerobic ammoxidation membrane biological reaction of efficient denitrification
System.
In order to achieve the above object, the technical scheme is that：A kind of efficient denitrification reaction system, it is characterised in that bag
Include water inlet end, half short distance nitration reaction zone, sludge settling area, Anammox reaction zone, circulating pump, membrane biological reaction area, go out
Water end (W.E.), the membrane biological reaction area include membrane module, and sewage flows into half short distance nitration after the water inlet end adjusts p value
Reaction zone, the ammonia nitrogen in the half short distance nitration reaction zone sewage flow to the sludge settling after being partially converted into cultured water
Area, partial sludge is back to the half short distance nitration reaction zone in the sludge settling area in sewage, and excess sludge is from the dirt
The sludge outlet discharge of mud settling zone, sewage subsequently flow into the Anammox reaction zone and filled with anaerobic ammonium oxidation sludge
Divide and mix, the ammonia nitrogen, cultured water in sewage are converted into nitrate nitrogen, nitrogen in the presence of the anaerobic ammonium oxidation sludge, so
Complete sewage and mud mixture are reacted in the Anammox area afterwards and enters the membrane biological reaction through the circulating pump
Area, after membrane module, pass through water side outflow system.
Further, the online water quality prison of multi-parameter is set in the half short distance nitration reaction zone, Anammox reaction zone
Survey instrument, the online water quality monitoring instrument of multi-parameter can monitor pH on-line, temperature, ORP, DO, NH+ 4-4, NO- 3-N and
NO- 2-N。
Further, temperature stabilization is 30 ~ 35 when the half short distance nitration reaction zone, Anammox reaction zone are run
℃。
Further, agitating device and aerator are provided with the half short distance nitration reaction zone, so that DO concentration control
System is in the range of 0.3 ~ 0.8 mg/L.
Further, the system also includes sludge reflux pump, for making the sludge reflux in the sludge settling area to institute
State half short distance nitration reaction zone, in addition to first circulation pump, for for reacted in the Anammox area complete sewage and
Mud mixture provides power and enters the membrane biological reaction area, in addition to second circulation pump, for for by film biology
The anaerobic sludge and part of contaminated water of reaction zone processing provide power and are back to the Anammox reaction zone.
Further, the system also includes pressure gauge, positioned at the water inlet for monitoring the membrane biological reaction area, for supervising
The pressure of membrane biological reaction area water inlet, in addition to valve are controlled, the delivery port positioned at the membrane biological reaction area, passes through tune
The size for saving the outlet valve controls the registration of the pressure gauge of water inlet in the range of 0.5 ~ 1 MPa.
Further, the system also includes the membrane module in the membrane biological reaction area, inside the membrane module
Horizontal channel and vertical channel be present, horizontal channel is for anaerobic sludge and part of contaminated water quickly through through the second circulation blowback
To the Anammox reaction zone, it with infiltrative membrane material, passage aperture is 0.1 ~ 2 that the material of the horizontal channel, which is,
μm, it is expelled directly out from vertical channel of the small-molecule substance that horizontal channel penetrates through membrane module outside system.
A kind of reaction method of efficient denitrification, it is characterised in that comprise the following steps：
（1）Sewage flows into the half short distance nitration reaction zone after water inlet end adjusts pH value；
（2）Half short distance nitration reaction zone includes anti-through more than half short distance nitrations as the sludge for dominating biology, sewage using nitrite bacteria
After answering area, the mineralized nitrogen of part is cultured water in sewage；
（3）Sewage flows into sludge settling area, and sludge part is back to half short distance nitration reaction zone, excess sludge in sludge settling area
Discharged from the sludge outlet in the sludge settling area；
（4）Sewage flows into Anammox reaction zone, and input contains ammonia nitrogen, cultured water into Anammox reaction zone
Sewage, Anammox reaction zone include the anaerobic sludge through domestication, and the ammonia nitrogen in sewage and cultured water are converted into nitric acid
Nitrogen and nitrogen；
（5）The mixture of sewage and sludge after the processing of Anammox reaction zone is pumped into follow-up by first circulation
Membrane biological reaction area, the anaerobic sludge in mixture through second circulation are pumped back to Anammox reaction after being retained by membrane module
Area, water outlet up to standard are then discharged outside a whole set of system by the discharge outlet of membrane module.
Further, the pH value after sewage regulation is 7.5 ~ 8.5.
Further, the DO in the half short distance nitration area is controlled in the range of 0.3 ~ 0.8 mg/L, keeping temperature 30-35
℃。
Further, the return sludge ratio in the sludge settling area is controlled 50% ~ 100%.
Further, NH+ 4-4/ NO- 2-N controls are in 1.0 ~ 1.3, after realizing half short distance nitration, the sludge settling
Area's water outlet flow to Anammox reaction zone, at the same time starts circulating pump and provides 1.0 ~ 2.5 m/ to Anammox reaction zone
H upflow velocity, the anaerobic ammonium oxidation sludge after domestication drive Anammox to react steady under suitable ambient parameter
Fixed operation, 30 ~ 35 DEG C of keeping temperature, hydraulic detention time HRT is 0.5 ~ 0.9 d, to Anammox reaction zone continuous feed.
Further, Fe, Co, Ni, Mg are added into Anammox reaction zone；Anammox reaction zone is operationally
Lightweight ring packing is added, the growth for sludge provides attachment point.
Further, the membrane biological reaction area includes membrane module, and the aperture of membrane material is 0.1 ~ 2 μm in membrane module, film
Component water inlet is equipped with pressure gauge, and delivery port is equipped with valve, is entered membrane module by the size for adjusting membrane module outlet valve
The registration of the pressure gauge at the mouth of a river is controlled in the range of 0.5 ~ 1MPa.
Further, horizontal channel and vertical channel inside the membrane module be present, horizontal channel supplies anaerobic sludge and portion
Dividing sewage, the material of the horizontal channel is with infiltrative membrane material, is led to quickly through Anammox reaction zone is returned to
Road aperture is 0.1 ~ 2 μm, is expelled directly out from vertical channel of the small-molecule substance that horizontal channel penetrates through membrane module outside system.
Beneficial effects of the present invention are fast to start, and efficiency high, standard water discharge rate are high.
Brief description of the drawings
Fig. 1 is system structure diagram of the present invention.
Wherein：1. water inlet end, 2. half short distance nitration reaction zones, the online water quality monitor of 3. multi-parameters, 4. sludge settlings
Area, 5. Anammox reaction zones, 6. first circulation pumps, 7. second circulation pumps, 8. pressure gauges, 9. membrane biological reaction ponds, 10. valves
Door, 11. water sides, 12. sludge reflux pumps, 13. excess sludge outlets
Embodiment
With reference to the accompanying drawings and detailed description, the present invention will be further described.
As shown in figure 1, efficient denitrification reaction system of the present invention mainly includes water inlet end 1, half short distance nitration reacts
Area 2, sludge settling area 4, Anammox reaction zone 5, membrane biological reaction area 9, water side 11.
Sewage enters system after water inlet end adjusts pH value, flows into half short distance nitration reaction zone 2, anti-in half short distance nitration
Answer area 2, the nearly half of ammonia nitrogen in sewage is converted into cultured water, and the water outlet of nitration reaction area 2 flow to sludge settling area 4, and sludge sinks
Sludge part is back to half short distance nitration reaction zone 2 in shallow lake area 4, and the water outlet of sludge settling area 4 flow to Anammox reaction zone 5,
The sewage and anaerobic ammonium oxidation sludge for being transported to Anammox area 5 are sufficiently mixed, and the ammonia nitrogen, cultured water in sewage are in anaerobism
Nitrate nitrogen, nitrogen are converted into the presence of ammoxidation sludge；Then complete sewage and sludge is reacted in Anammox area 5 to mix
Compound enters membrane biological reaction area 9 through circulating pump, after membrane module, passes through water side outflow system.
Further, the system sets multi-parameter to exist in half short distance nitration reaction zone 2, Anammox reaction zone 5
Line water quality monitoring instrument, the parameter such as pH, temperature ORP, DO, NH+ 4-4, NO- 3-N and NO- 2-N can be monitored on-line.
Further, system temperature stabilization when half short distance nitration reaction zone 2, Anammox reaction zone 5 are run
At 30 ~ 35 DEG C.
Further, agitating device and aerator are provided with half short distance nitration reaction zone 2, make DO control 0.3 ~
In the range of 0.8mg/L.
Further, the system includes sludge reflux pump 12, for making the sludge reflux in sludge settling area 4 to half short distance nitre
Change reaction zone 2；Also include first circulation pump 6, for being carried to react complete sewage and mud mixture in Anammox area 5
Enter membrane biological reaction area 9 for power；Also include second circulation pump 7, for the anaerobism dirt to be handled by membrane biological reaction area 9
Mud and part of contaminated water provide power and are back to Anammox reaction zone 5.
Further, the system also includes pressure gauge 8, the water inlet positioned at monitoring membrane biological reaction area 9, for monitoring film
The pressure of the water inlet of bio-reaction zone 9；Also include valve 10, the delivery port positioned at membrane biological reaction area 9, pass through adjusting water outlet mouth
The size of valve 10 controls the registration of the pressure gauge 8 of water inlet in the range of 0.5 ~ 1 MPa.
Further, the system includes the membrane module in membrane biological reaction area 9, horizontal channel be present inside membrane module
And vertical channel, horizontal channel are pumped back to Anammox reaction for anaerobic sludge and part of contaminated water quickly through through second circulation
Area, the material of horizontal channel, which is 0.1 ~ 2 μm, has infiltrative membrane material, and the small-molecule substance penetrated from horizontal channel is through film
The vertical channel of component is expelled directly out outside system.
A kind of reaction method of efficient denitrification, given birth to by half short distance nitration reaction zone 2, Anammox reaction zone 5 and film
Thing reaction zone 9 is combined into, and the effect of half short distance nitration reaction zone 2 is that the ammonia nitrogen in water inlet is partially converted into nitrous acid
Nitrogen, 1.0 ~ 1.3, the function of sludge settling area 4 is sludge reflux is anti-to half short distance nitration NH+ 4-4/ NO- 2-N scopes
Area 2 is answered, the sludge of half short distance nitration reaction zone 2 is supplemented and prevents the sludge of half short distance nitration reaction zone 2 from entering anaerobism
Ammoxidation reaction area 5 influences Anammox reaction, and Anammox reaction zone 5 is intended to the ammonia nitrogen and cultured water in sewage
Nitrate nitrogen and nitrogen are converted into, membrane biological reaction area 9, which is then laid particular emphasis on, is timely recovered to anaerobic sludge in Anammox area.Detest
The mixture of sewage and sludge after the processing of anaerobic ammonium oxidation reaction zone 5 delivers into follow-up film biology by first circulation pump 6
Reaction zone 9, the anaerobic sludge in mixture through sludge circulation are pumped back to Anammox reaction zone 5 after being retained by membrane module,
Water outlet up to standard is then discharged outside a whole set of system by the discharge outlet of membrane module.
The sludge of half short distance nitration reaction zone 2 is come by the activated sludge acclimatization by routine：It is dirty to be inoculated with city
The nitrifying sludge of water treatment plant, inlet flow-patterm be 7.5 ~ 8.5, DO scope controls in 0.3 ~ 0.8mg/L, temperature is at 30 ~ 35 DEG C, sludge
Reflux ratio control is 50% ~ 100%, and control sludge sludge age is between the generation time of nitrosation flora and the generation time of nitrifying bacteria community
Between, nitrifier is washed out into reactor.
The anaerobic sludge of Anammox reaction zone 5 is through domestication：First the sludge of inoculation is eluriated repeatedly, removed
Upper strata floating object and lower floor's bulk deposition thing, leave the tiny sludge of particle, and sludge is finally transferred to the anaerobism of closing shading
In reactor；Then to anaerobic reactor intermittent feeding, at the same time start circulating pump and provide 1.0 ~ 2.5 to anaerobic reaction area
M/h upflow velocity, the process continue two weeks or so, to anaerobic reaction continuous feed.
Further, sewage composition suitably adds the trace elements such as Fe, Co, Ni, Mg, ammonia nitrogen, Asia in periodic detection water outlet
The content of nitrate nitrogen, nitrate nitrogen.
Anaerobic ammonium oxidation sludge after domestication can drive Anammox to react steady under suitable ambient parameter
Fixed operation, specific environment parameter are:30 ~ 35 DEG C of temperature, for pH 7.5 ~ 8.5, hydraulic detention time HRT is 0.5 ~ 0.9d, rising
Flow velocity is 1.0 ~ 2.5 m/h.On this condition, influent concentration is respectively 200 ppm, 260 ppm ammonia nitrogen and cultured water
Clearance is attained by 90%, and nitrogen load rate NLR is up to 1.68 Kg N/ (m3d).Anaerobism ammonia oxygen under the process conditions
Change and react strong shock resistance, after system unstability, can stablize through short-term recovery.
Further, Anammox reaction zone 5 operationally can also add lightweight ring packing, and ring packing is available for dirt
The growth of mud provides attachment point, the increase of promotion system biofilm biomass.
9 most important part of membrane biological reaction area is membrane module, 0.1 ~ 2 μm of the aperture of membrane material, membrane module in membrane module
Water inlet is equipped with pressure gauge 8, and delivery port is equipped with valve 10, is entered membrane module by the size for adjusting membrane module outlet valve 10
The registration of pressure gauge 8 at the mouth of a river is controlled in the range of 0.5 ~ 1MPa.
Horizontal channel and vertical channel inside membrane module be present, horizontal channel for anaerobic sludge and part of contaminated water quickly through
Anammox reaction zone 5 is returned to, the material of horizontal channel, which is 0.1 ~ 2 μm, has infiltrative membrane material, is oozed from horizontal channel
Vertical channel of the small-molecule substance appeared through membrane module is expelled directly out outside system.
The technique that the present invention is combined using half short-cut nitrification technology, anaerobic ammonia oxidation process and membrane bioreactor, with
Traditional handicraft is compared, and oxygen and carbon source consumption substantially reduce, the sewage reacted through more than half short distance nitrations, ammonia nitrogen and cultured water
Ratio be adapted to, for Anammox reaction suitable reaction condition is provided, realize efficient denitrification, while used membrane biological reaction
Device can effectively be divided it mud mixture after Anammox area is handled by the interception function in membrane biological reaction area
From sludge can be recovered in anaerobic ammonia oxidation reactor in time.Technique nitric efficiency of the present invention is high, and energy resource consumption is low,
Standard water discharge rate is high, while has abandoned traditional anaerobic ammonia oxidation process Gravity Separation and used UF membrane sludge, greatly accelerates
The enriching rate of anaerobic ammonium oxidizing bacteria, it is quick to start Anammox reaction.
Although specifically showing and describing the present invention with reference to preferred embodiment, those skilled in the art should be bright
In vain, do not departing from the spirit and scope of the present invention that appended claims are limited, in the form and details to this hair
It is bright to make a variety of changes, it is protection scope of the present invention.
Claims (14)
- A kind of 1. efficient denitrification reaction system, it is characterised in that including water inlet end, half short distance nitration reaction zone, sludge settling area, Anammox reaction zone, circulating pump, membrane biological reaction area, water side, the membrane biological reaction area include membrane module, sewage warp The half short distance nitration reaction zone is flowed into after crossing the water inlet end regulation pH value, in the half short distance nitration reaction zone sewage Ammonia nitrogen flow to the sludge settling area after being partially converted into cultured water, and partial sludge flows back in the sludge settling area in sewage To the half short distance nitration reaction zone, excess sludge is discharged from the sludge outlet in the sludge settling area, and sewage subsequently flows into The Anammox reaction zone is simultaneously sufficiently mixed with anaerobic ammonium oxidation sludge, and the ammonia nitrogen, cultured water in sewage are detested described Nitrate nitrogen, nitrogen are converted into the presence of anaerobic ammonium oxidation sludge, then reacted in the Anammox area complete sewage and Mud mixture enters the membrane biological reaction area through the circulating pump, after membrane module, passes through water side outflow system.
- 2. efficient denitrification reaction system as claimed in claim 1, it is characterised in that in the half short distance nitration reaction zone, anaerobism Multi-parameter online water quality monitoring instrument is set in ammoxidation reaction area, and the online water quality monitoring instrument of multi-parameter can be monitored on-line PH, temperature, ORP, DO, NH+ 4-4, NO- 3-N and NO- 2-N.
- 3. efficient denitrification reaction system as claimed in claim 1, it is characterised in that the half short distance nitration reaction zone, anaerobism ammonia Temperature stabilization is at 30 ~ 35 DEG C when oxidation reaction zone is run.
- 4. efficient denitrification reaction system as claimed in claim 1, it is characterised in that be provided with the half short distance nitration reaction zone Agitating device and aerator, so that DO concentration is controlled in the range of 0.3 ~ 0.8 mg/L.
- 5. efficient denitrification reaction system as claimed in claim 1, it is characterised in that the system also includes sludge reflux pump, uses In making the sludge reflux in the sludge settling area to the half short distance nitration reaction zone, in addition to first circulation pump, for for The Anammox area reacts complete sewage and mud mixture offer power and enters the membrane biological reaction area, in addition to Second circulation pump, for providing power for the anaerobic sludge by membrane biological reaction area processing and part of contaminated water and being back to institute State Anammox reaction zone.
- 6. efficient denitrification reaction system as claimed in claim 1, it is characterised in that the system also includes pressure gauge, positioned at prison The water inlet in the membrane biological reaction area is controlled, for monitoring the pressure of membrane biological reaction area water inlet, in addition to valve, position Delivery port in the membrane biological reaction area, by adjusting the size of the outlet valve by the registration of the pressure gauge of water inlet Control is in the range of 0.5 ~ 1 MPa.
- 7. efficient denitrification reaction system as claimed in claim 5, it is characterised in that the system also includes giving birth to positioned at the film , horizontal channel and vertical channel inside the membrane module be present in the membrane module in thing reaction zone, horizontal channel for anaerobic sludge and Part of contaminated water is pumped back to the Anammox reaction zone quickly through through the second circulation, and the material of the horizontal channel is With infiltrative membrane material, passage aperture is 0.1 ~ 2 μm, from the small-molecule substance that horizontal channel penetrates hanging down through membrane module Straight channel is expelled directly out outside system.
- 8. a kind of reaction method of efficient denitrification, it is characterised in that comprise the following steps：Sewage flows into the half short distance nitration reaction zone after water inlet end adjusts pH value；Half short distance nitration reaction zone is included using nitrite bacteria as the sludge for dominating biology, and sewage is through more than half short distance nitration reaction zones Afterwards, the mineralized nitrogen of part is cultured water in sewage；Sewage flows into sludge settling area, and sludge part is back to half short distance nitration reaction zone in sludge settling area, excess sludge from The sludge outlet discharge in the sludge settling area；Sewage flows into Anammox reaction zone, and the dirt containing ammonia nitrogen, cultured water is inputted into Anammox reaction zone Water, Anammox reaction zone include the anaerobic sludge through domestication, and the ammonia nitrogen in sewage and cultured water are converted into nitrate nitrogen And nitrogen；The mixture of sewage and sludge after the processing of Anammox reaction zone is pumped into follow-up film by first circulation Bio-reaction zone, the anaerobic sludge in mixture through second circulation are pumped back to Anammox reaction zone after being retained by membrane module, Water outlet up to standard is then discharged outside a whole set of system by the discharge outlet of membrane module.
- 9. the reaction method of efficient denitrification as claimed in claim 8, it is characterised in that pH value after sewage regulation for 7.5 ~ 8.5。
- 10. the reaction method of efficient denitrification as claimed in claim 8, it is characterised in that the DO controls in the half short distance nitration area In the range of 0.3 ~ 0.8 mg/L, 30-35 DEG C of keeping temperature.
- 11. the reaction method of efficient denitrification as claimed in claim 8, it is characterised in that the sludge in the sludge settling area returns Stream is than control 50% ~ 100%.
- 12. the reaction method of efficient denitrification as claimed in claim 8, it is characterised in that added into Anammox reaction zone Fe、Co、Ni、Mg；Anammox reaction zone operationally adds lightweight ring packing, and the growth for sludge provides attachment point.
- 13. the reaction method of efficient denitrification as claimed in claim 8, it is characterised in that the membrane biological reaction area includes film group Part, the aperture of membrane material is 0.1 ~ 2 μm in membrane module, and membrane module water inlet is equipped with pressure gauge, and delivery port is equipped with valve, passed through The size for adjusting membrane module outlet valve controls the registration of the pressure gauge of membrane module water inlet in the range of 0.5 ~ 1MPa.
- 14. the reaction method of efficient denitrification as claimed in claim 13, horizontal channel and vertical inside the membrane module be present Passage, horizontal channel for anaerobic sludge and part of contaminated water quickly through returning to Anammox reaction zone, the horizontal channel Material is that passage aperture is 0.1 ~ 2 μm, from the small-molecule substance that horizontal channel penetrates through film group with infiltrative membrane material The vertical channel of part is expelled directly out outside system.
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| CN201710954585.4A CN107739094A (en) | 2017-10-13 | 2017-10-13 | A kind of efficient denitrification reaction system and method |
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| CN201710954585.4A CN107739094A (en) | 2017-10-13 | 2017-10-13 | A kind of efficient denitrification reaction system and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108264204A (en) * | 2018-04-04 | 2018-07-10 | 煤科集团杭州环保研究院有限公司 | A kind of sewage biological treatment system and method |
| WO2019169980A1 (en) * | 2018-03-09 | 2019-09-12 | 上海世浦泰膜科技有限公司 | Anaerobic ammonia oxidation-based sewage treatment process using mbr |
| CN114477437A (en) * | 2022-01-29 | 2022-05-13 | 中国科学院生态环境研究中心 | Method and device for self-regulating and controlling dissolved oxygen in inflow water of anaerobic ammonia oxidation reactor |
| WO2022160563A1 (en) * | 2021-01-28 | 2022-08-04 | 北京坦思环保科技有限公司 | Apparatus and method for deep removal of nitrogen from industrial wastewater by means of anaerobic ammonium oxidation |
-
2017
- 2017-10-13 CN CN201710954585.4A patent/CN107739094A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019169980A1 (en) * | 2018-03-09 | 2019-09-12 | 上海世浦泰膜科技有限公司 | Anaerobic ammonia oxidation-based sewage treatment process using mbr |
| CN108264204A (en) * | 2018-04-04 | 2018-07-10 | 煤科集团杭州环保研究院有限公司 | A kind of sewage biological treatment system and method |
| CN108264204B (en) * | 2018-04-04 | 2020-07-07 | 煤科集团杭州环保研究院有限公司 | Sewage biological treatment system and method |
| WO2022160563A1 (en) * | 2021-01-28 | 2022-08-04 | 北京坦思环保科技有限公司 | Apparatus and method for deep removal of nitrogen from industrial wastewater by means of anaerobic ammonium oxidation |
| CN114477437A (en) * | 2022-01-29 | 2022-05-13 | 中国科学院生态环境研究中心 | Method and device for self-regulating and controlling dissolved oxygen in inflow water of anaerobic ammonia oxidation reactor |
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