CN105753156A - High-standard nitrogen and phosphorus removal method for municipal wastewater - Google Patents
High-standard nitrogen and phosphorus removal method for municipal wastewater Download PDFInfo
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- CN105753156A CN105753156A CN201610175142.0A CN201610175142A CN105753156A CN 105753156 A CN105753156 A CN 105753156A CN 201610175142 A CN201610175142 A CN 201610175142A CN 105753156 A CN105753156 A CN 105753156A
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- carbon source
- nitrogen
- phosphorus removal
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- 238000000034 method Methods 0.000 title claims abstract description 37
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title abstract description 40
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title abstract description 21
- 229910052698 phosphorus Inorganic materials 0.000 title abstract description 21
- 239000011574 phosphorus Substances 0.000 title abstract description 21
- 229910052757 nitrogen Inorganic materials 0.000 title abstract description 20
- 239000010841 municipal wastewater Substances 0.000 title abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 50
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000005273 aeration Methods 0.000 claims abstract description 20
- 239000010802 sludge Substances 0.000 claims abstract description 16
- 238000012163 sequencing technique Methods 0.000 claims abstract description 11
- 239000010865 sewage Substances 0.000 claims description 32
- 206010021143 Hypoxia Diseases 0.000 claims description 18
- 206010002660 Anoxia Diseases 0.000 claims description 17
- 230000003834 intracellular effect Effects 0.000 claims description 17
- 241000976983 Anoxia Species 0.000 claims description 9
- 230000007953 anoxia Effects 0.000 claims description 9
- 238000005276 aerator Methods 0.000 claims description 5
- 241000108664 Nitrobacteria Species 0.000 claims description 3
- 241000894006 Bacteria Species 0.000 abstract description 11
- 244000005700 microbiome Species 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 239000002351 wastewater Substances 0.000 abstract description 2
- 230000001546 nitrifying effect Effects 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 8
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 6
- 229920000388 Polyphosphate Polymers 0.000 description 5
- 229920000037 Polyproline Polymers 0.000 description 5
- 239000001205 polyphosphate Substances 0.000 description 5
- 235000011176 polyphosphates Nutrition 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000012851 eutrophication Methods 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 1
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000009294 enhanced biological phosphorus removal Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000001146 hypoxic effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- 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
- C02F3/308—Biological phosphorus removal
-
- 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
- C02F2101/105—Phosphorus compounds
-
- 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 invention relates to a high-standard nitrogen and phosphorus removal method for municipal wastewater. A sequencing batch activated sludge reactor is adopted, operation conditions comprise water inflow, anaerobic treatment, aerobic treatment, anoxic treatment, post-aerobic treatment, precipitation and water drainage, wherein an anaerobic stage is arranged at the front end of an aeration stage, and a carbon source in water is transformed into an internal carbon source in sludge through adsorption and absorption of microorganisms; meanwhile, through prolonging of the sludge age, being 20-150 d, of the reactor, nitrifying bacteria in the reactor are enriched, the nitrification efficiency of the reactor is enhanced, the aeration time is shortened, so that the sufficient carbon source is provided for nitrogen and phosphorus removal through denitrification in the anoxic stage after aeration, and further, deep nitrogen and phosphorus removal under long sludge age is realized. According to the method, nitrogen removal through denitrification and phosphorus removal through denitrification are realized through the carbon source in cells under the conditions of short-time aeration and long sludge age, the method has the advantages of high efficiency of deep synchronous nitrogen and phosphorus removal, short process, simple operation and low investment and operation cost, and a new way is provided for deep nitrogen and phosphorus removal of a wastewater plant.
Description
Technical field
The invention belongs to saprobia further treatment technique, particularly to one profit under the conditions of long mud age and short-time aeration
The town sewage high standard deep phosphorous removal denitrification treatment technology of denitrification denitrogenation and denitrification dephosphorization is realized by intracellular carbon source.
Background technology
Nitrogen, phosphorus are all the principal elements causing body eutrophication, and the unprocessed direct discharge of municipal sewage can be carried greatly
The nutrient substance such as the nitrogen of amount, phosphorus enter water body, and then can cause body eutrophication, so that whole aquatic ecosystem and water
Function is destroyed.Therefore, countries in the world all define more and more stricter sewage drainage standard.Compared to physics and chemistry side
Method, biological method, because of its energy consumption and the advantage of economic aspect, has been successfully applied to the dephosphorization denitrogenation of municipal wastewater treatment plant.
Existing town sewage plant uses traditional biological phosphate-eliminating denitrification process, on the one hand, it processes in water outlet and all contains relatively
High nitrate nitrogen, row forms serious threat to water body to water environment；On the other hand, returned sludge also carries the nitre of higher concentration
State nitrogen, if these nitrate nitrogens are passed straight back to anaerobism section, it will cause denitrifying bacteria and the polyP bacteria competition to carbon source, from
And weaken polyP bacteria advantage degree in systems, affect phosphor-removing effect, ensure water outlet phosphorus frequently with chemical cooperated dephosphorization at present
Up to standard.Although the improved process such as existing preposition anoxia can alleviate the impact on anaerobic phosphorus release of the nitrate nitrogen in returned sludge, but
Treatment effect promotes limited.And the advanced nitrogen realizing town sewage typically requires and adds carbon source, it is added significantly to advanced treating
Cost, carbon source lacks becomes the bottleneck of its high standard low-cost processes.To this, if new low cost carbon source can be found to drop
Nitrate nitrogen in low sewage, is possible not only to reduce the harm to water environment of the Sewage Plant tail water, can also eliminate nitrate nitrogen to polyP bacteria simultaneously
The impact of dephosphorization system, thus realize the municipal sewage high standard deep phosphorous removal denitrogenation of low cost.
There is mud contradiction in age in tradition dephosphorization and denitrification process, tradition denitrification process aeration time is long, and energy consumption is big, and biological phosphate-eliminating takes off
The nitrogen competition to carbon source, and the problem such as deep phosphorous removal denitrogenation carbon source shortage.
Intracellular carbon source is the most unheeded carbon source of one, and it is widely present in various microorganism.Microorganism has
Carbon source in sewage is converted into the ability of intracellular carbon source, but in tradition denitrification process, long aerobic section is by micro-life
The internal carbon source of thing is depleted so that it is cannot be utilized effectively.Carbon source in sewage is converted into intracellular carbon source by microorganism
After, the degradation rate of carbon source in system also will be substantially reduced, thus can reduce aerobic section to the loss of carbon source in system；With
Time, by rate of nitrification can be improved, reduce the time needed for aerobic section aeration, also will further decrease the loss of system carbon source.
Summary of the invention
It is an object of the invention to provide a kind of town sewage high standard dephosphorization denitrification method, at short-time aeration and long mud bar in age
Under part, utilize intracellular carbon source denitrification denitrogenation and denitrification dephosphorization, to city sewage deep simultaneous phosphorus and nitrogen removal, solve tradition
Technique deep phosphorous removal denitrification process long flow path, the problems such as investment operating cost is high.
For reaching above-mentioned purpose, the present invention uses sequencing batch activated sludge reactor, operating condition to be water inlet-anaerobism-good
Oxygen-anoxia-rear aerobic-precipitation-draining, arranges anaerobism section in the front end of aeration phase, by absorption and the absorption of microorganism, and can
By the internal carbon source during carbon source is converted into mud in water, meanwhile, by extension reactor mud age, enhancing reactor nitrification efficiency, with
Time shorten aeration time, not only can effectively reduce operation energy consumption, moreover it is possible to reduce the aeration consumption to sludge internal carbon source, thus for expose
After gas, the denitrifying phosphorus uptake of anoxia section provides sufficient carbon source.
The concrete technical scheme of the present invention is as follows:
(1) using single-stage sequencing batch activated sludge reactor, sequencing batch operation operating mode is water inlet-anaerobic-aerobic-anoxia-rear good
Oxygen-precipitation-draining, inside sets blender and aerator, system intermittent water inflow, intermittently water outlet.Reactor mud mud age is 20 d
~150d。
(2) running the period in reactor anaerobism, the anaerobism time controls at 0.5 ~ 3h, the carbon source almost all in sewage is turned
Move on among mud.
(3) the reactor aerobic operation period, aerobic time controls at 30min ~ 80min, for ensureing the nitrification speed of aerobic section
Rate, the DO of aerobic section controls at more than 1mg/L, completes nitrification by the nitrobacteria of enrichment in system, reduces aerobic section simultaneously
Loss to internal carbon source.
(4) reactor anoxia runs the period, and hypoxic exposure controls at 2 ~ 7h.After reactor aerobic section has run, enter
The anoxia section of one long period, owing to utilizing the carbon source that in mud, the speed of internal carbon source denitrogenation is significantly less than in sewage, these rank
The denitrification denitrogenation of section and dephosphorization need a longer time.Owing to denitrification occurs after nitrification, it is not necessary to digest
Liquid refluxes, and can realize the removal of nitrogen.
(5) the aerobic operation period after reactor, rear aerobic time controls at 0.2 ~ 0.5h；For ensureing reactor for treatment effect
Really, an of short duration aerobic section was set before water outlet.
(6) in order to more fully utilize intracellular carbon source, and more preferable growth conditions is createed for microorganism, permissible
Aerobic section after anaerobism section and anoxia section are split as 2 ~ 3 stages alternately.
By this method successfully construct based on short-time aeration and long mud condition in age, utilize intracellular carbon source to carry out denitrification
Denitrogenation and the city sewage deep simultaneous phosphorus and nitrogen removal system of denitrification dephosphorization, to influent COD 280 ~ 380 mg/L, NH3-N
40 ~ 50mg/L, TN 42 ~ 55mg/L, TP are the ability that the town sewage of 3 ~ 5mg/L has stronger degree of depth simultaneous phosphorus and nitrogen removal.
This method has the advantage that
(1) treatment efficiency height, single-stage reactor realize high standard advanced treating
This method is with town sewage for processing object, and reactor, under the conditions of short-time aeration with long mud age, utilizes intracellular carbon source
Carry out city sewage deep denitrification simultaneous phosphorus and nitrogen removal, water outlet can be made to reach water environment quality standard.System is not increasing
Plus depth treatment facility, not supplementary carbon source and the condition adding chemical dephosphorization medicament, it is achieved the high standard depth of town sewage
Reason.
(2) energy consumption low, investment, operating cost low
The deep phosphorous removal denitrogenation of town sewage is completed in single-stage sequencing batch reactor by this method, is not required to arrange relevant depth
Reason facility, significantly saves the investment of sewage treatment facility；The batch-type strengthening B-grade sewage that Sewage Plant is built is processed and sets
Execute, only need to carry out operating condition and adjust the advanced treating that can realize sewage, be not required to newly-built treatment facility；
This method can effectively shorten the aerobic aeration time, and aerobic time can foreshorten to 80min, it might even be possible to shorter, reduces system
Operation energy consumption；
Further, system utilizes internal carbon source to carry out denitrification deep phosphorous removal denitrogenation, it is not necessary to additional carbon, saves carbon source and adds into
This；
Meanwhile, system utilizes polyP bacteria and Denitrifying Phosphate Accumulating Organisms enhanced biological phosphorus removal, it is not necessary to adds chemical agent, significantly reduces
The cost of advanced treatment of wastewater.This method utilizes intracellular carbon source not only by Denitrifying Phosphate Accumulating Organisms, simultaneously can be also
Intracellular carbon source is utilized by denitrifying bacterium.Due to during processing sewage, in aerobic section and anoxia section, it some times happens that
Phosphorus is removed at aerobic section, but there is more nitrate nitrogen in system, is at this time accomplished by utilizing denitrifying bacterium
Making a return journey the nitrate nitrogen in scrubbing water, owing to not having phosphorus, Denitrifying Phosphate Accumulating Organisms will be unable to become advantage in this moment, now
Need denitrifying bacterium to utilize intracellular carbon source to realize the removal of nitrate nitrogen.
(3) mud of this method is longer than traditional handicraft age, and by extension reactor mud age, mud age is 20 d ~ 150d, enrichment
Nitrobacteria in reactor, enhancing reactor nitrification efficiency, shortens aeration time, not only can effectively reduce operation energy consumption, also
The aeration consumption to sludge internal carbon source can be reduced, thus fill with denitrification dephosphorization offer for the denitrification denitrogenation of anoxia section after aeration
Foot carbon source, and then achieve the degree of depth of nitrogen and phosphorus under the conditions of long mud age and remove.Solve the mud age of tradition dephosphorization and denitrification process
Contradiction.
(4) technological process is short, operational management is easy
This method technological process is short, and deep phosphorous removal denitrogenation structures are single-stage reactor, and operational management simplicity is convenient.Solve existing
There is the problem that town sewage advanced treatment process long flow path, operational management are complicated.
It addition, this method can directly initiate, it is not necessary to domestication polyP bacteria and additional composite bacteria agent capable in advance, regulated and controled just age by mud
Naturally the enrichment of antibacterial in feasible system, the startup time can realize in 15d simultaneously.
As fully visible, the present invention has degree of depth simultaneous phosphorus and nitrogen removal usefulness height, technological process is short, operational management is easy, throwing
Money and the low advantage of operating cost, open new way for town sewage high standard deep phosphorous removal denitrogenation.
Detailed description of the invention
The denitrification of the low-carbon-source consumption that the present invention builds and denitrification dephosphorization system, be by the carbon source in sewage being turned
Turn to intracellular carbon source, improve rate of nitrification simultaneously, shorten aeration time, reduce intracellular carbon source and consume, it is achieved the synchronization of nitrogen phosphorus
Remove.
It is described in further detail below in conjunction with embodiment:
A kind of city utilizing intracellular carbon source denitrification denitrogenation and denitrification dephosphorization under the conditions of short-time aeration with long mud age is dirty
Water depth simultaneous phosphorus and nitrogen removal method, can implement according to the following steps:
(1) reactor uses single-stage sequencing batch activated sludge reactor, inside sets blender and aerator, system intermittent water inflow,
Intermittently water outlet.Reactor mud mud age is 20 d ~ 150d.
(2) reactor sequencing batch operation operating mode: water inlet 5min-anaerobism 0.5 ~ 3h-aerobic 30min ~ 80min-anoxia 2 ~
7h-aerobic 0.2 ~ 0.5h-precipitates 1h-draining 1h.
(3) the reactor aerobic operation period, the DO of aerobic section controls at more than 1mg/L.
Concrete application example 1:
Use single-stage sequencing batch activated sludge reactor, inside set blender and aerator, system intermittent water inflow, intermittently water outlet.
Reactor sequencing batch operation operating mode: water inlet 5min-anaerobism 55min-aerobic 60min-anoxia 240 min-aerobic
After 20min-anoxia 200min, aerobic 20min-precipitates 60min-draining 60min.Wherein in the aerobic operation period, DO controls
At more than 1mg/L.
It is 300 mg/L, NH at water temperature 10 DEG C, influent COD3-N be 40mg/L, TN 42mg/L, TP be 5mg/L.Water outlet
COD、NH3-N, TP, TN concentration are respectively 21 mg/L, 0.52 mg/L, 0.13 mg/L, 1.92 mg/L, and water outlet can be contentedly
Table quality standard of water environment.
Concrete application example 2:
Use single-stage sequencing batch activated sludge reactor, inside set blender and aerator, system intermittent water inflow, intermittently water outlet.
After water inlet 5min-anaerobism 55min-aerobic 60min-anoxia 240min-aerobic 20min-anoxia 200min
Aerobic 20min-precipitates 60min-draining 60min.Wherein in the aerobic operation period, DO controls at more than 1mg/L.
It is 300 mg/L at water temperature 30 DEG C, influent COD, NH3-N be 40mg/L, TN 42mg/L, TP be 5mg/L.Water outlet
COD、NH3-N, TP, TN concentration are respectively 26 mg/L, 0.23 mg/L, 0.18 mg/L, 1.63 mg/L, and water outlet can be contentedly
Table quality standard of water environment.
Claims (2)
1. utilize a town sewage high standard dephosphorization denitrification method for intracellular carbon source based on long mud age and short-time aeration, it is special
Levying and be: described method uses single-stage sequencing batch activated sludge reactor, and reactor sludge age is 20 d ~ 150d, batch-type is transported
Row operating mode is water inlet-anaerobic-aerobic-anoxia-rear aerobic-precipitation-draining, sets blender and aerator, intermittently in reactor
Water inlet, intermittently water outlet；Running the period in reactor anaerobism, the anaerobism time controls at 0.5 ~ 3h, by the most complete for the carbon source in sewage
Portion transfers among mud；In the reactor aerobic operation period, aerobic time controls at 30min ~ 80min, and aerobic section DO is all the time
Control at more than 1mg/L, complete nitrification by the nitrobacteria of enrichment in system；The period is run, during anoxia in reactor anoxia
Between control at 2 ~ 7h, create conditions for making full use of intracellular carbon source, carry out denitrification denitrogenation and dephosphorization；After reactor aerobic
Running the period, rear aerobic time controls at 0.2 ~ 0.5h.
Town sewage high standard dephosphorization denitrification method the most according to claim 1, it is characterised in that: in described method,
It is alternately repeated the aerobic-anaerobic in 2 ~ 3 stages of operation after aerobic-anaerobic, reduces intracellular carbon source and consume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610175142.0A CN105753156B (en) | 2016-03-25 | 2016-03-25 | A kind of town sewage high standard dephosphorization denitrification method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610175142.0A CN105753156B (en) | 2016-03-25 | 2016-03-25 | A kind of town sewage high standard dephosphorization denitrification method |
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| Publication Number | Publication Date |
|---|---|
| CN105753156A true CN105753156A (en) | 2016-07-13 |
| CN105753156B CN105753156B (en) | 2019-11-05 |
Family
ID=56346365
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| CN201610175142.0A Expired - Fee Related CN105753156B (en) | 2016-03-25 | 2016-03-25 | A kind of town sewage high standard dephosphorization denitrification method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673371A (en) * | 2017-01-12 | 2017-05-17 | 中国矿业大学 | Low-carbon source two-stage MBR (Membrane-Bioreactor) enhanced nitrogen and phosphorus removal method for city sewage |
| CN106865887A (en) * | 2017-02-22 | 2017-06-20 | 浙江华建尼龙有限公司 | Nylon chips produce waste water and sanitary sewage hybrid processing system and its processing method |
| CN106976975A (en) * | 2017-05-08 | 2017-07-25 | 中国矿业大学 | A kind of rearmounted anoxic strengthens the sewerage advanced treatment process of nitrogen phosphorus ligands |
| CN108862586A (en) * | 2018-07-09 | 2018-11-23 | 北京恩菲环保股份有限公司 | Sewage water treatment method |
| CN109694132A (en) * | 2019-02-23 | 2019-04-30 | 何江涛 | A kind of sewage water treatment method of sequence batch temperature-control pressure-control biomembrane |
| CN113149213A (en) * | 2021-04-25 | 2021-07-23 | 北京工业大学 | Device and method for rapidly culturing aerobic granular sludge and treating low-carbon-ratio municipal sewage |
| CN114291892A (en) * | 2021-12-22 | 2022-04-08 | 重庆大学 | Solid carbon source for denitrification of sewage with low carbon-nitrogen ratio and preparation method thereof |
| CN115403147A (en) * | 2022-09-02 | 2022-11-29 | 四川省绵阳市丰谷酒业有限责任公司 | SBR wastewater treatment method and SBR wastewater treatment device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673371A (en) * | 2017-01-12 | 2017-05-17 | 中国矿业大学 | Low-carbon source two-stage MBR (Membrane-Bioreactor) enhanced nitrogen and phosphorus removal method for city sewage |
| CN106865887A (en) * | 2017-02-22 | 2017-06-20 | 浙江华建尼龙有限公司 | Nylon chips produce waste water and sanitary sewage hybrid processing system and its processing method |
| CN106976975A (en) * | 2017-05-08 | 2017-07-25 | 中国矿业大学 | A kind of rearmounted anoxic strengthens the sewerage advanced treatment process of nitrogen phosphorus ligands |
| CN108862586A (en) * | 2018-07-09 | 2018-11-23 | 北京恩菲环保股份有限公司 | Sewage water treatment method |
| CN109694132A (en) * | 2019-02-23 | 2019-04-30 | 何江涛 | A kind of sewage water treatment method of sequence batch temperature-control pressure-control biomembrane |
| CN109694132B (en) * | 2019-02-23 | 2021-12-17 | 何江涛 | Sewage treatment method of sequencing batch temperature and pressure control biological membrane |
| CN113149213A (en) * | 2021-04-25 | 2021-07-23 | 北京工业大学 | Device and method for rapidly culturing aerobic granular sludge and treating low-carbon-ratio municipal sewage |
| CN113149213B (en) * | 2021-04-25 | 2024-04-05 | 北京工业大学 | Device and method for rapidly culturing aerobic granular sludge and treating low-carbon-nitrogen-ratio urban sewage |
| CN114291892A (en) * | 2021-12-22 | 2022-04-08 | 重庆大学 | Solid carbon source for denitrification of sewage with low carbon-nitrogen ratio and preparation method thereof |
| CN115403147A (en) * | 2022-09-02 | 2022-11-29 | 四川省绵阳市丰谷酒业有限责任公司 | SBR wastewater treatment method and SBR wastewater treatment device |
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