CN1772655A - High efficiency nitrification process of biological sewage treatment - Google Patents
High efficiency nitrification process of biological sewage treatment Download PDFInfo
- Publication number
- CN1772655A CN1772655A CN 200510094560 CN200510094560A CN1772655A CN 1772655 A CN1772655 A CN 1772655A CN 200510094560 CN200510094560 CN 200510094560 CN 200510094560 A CN200510094560 A CN 200510094560A CN 1772655 A CN1772655 A CN 1772655A
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- pond
- sewage
- high efficiency
- sewage treatment
- aerobic pond
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- 239000010865 sewage Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000005273 aeration Methods 0.000 claims abstract description 33
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000011259 mixed solution Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 2
- 238000004062 sedimentation Methods 0.000 claims description 2
- 239000006228 supernatant Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 6
- 239000010802 sludge Substances 0.000 description 6
- 230000035484 reaction time Effects 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005261 decarburization Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 235000003715 nutritional status Nutrition 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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Abstract
The present invention is high efficiency nitrification process of biological sewage treatment, especially suitable for city sewage treatment. The sewage treating process includes shunting sewage in certain ratio, treating partial sewage in no-aeration tank comprising anoxic tank and anaerobic tank, making partial sewage enter to the aerobic tank directly, mixing the sewage from the no-aeration tank and the directly entering sewage and aerating in the aerobic tank, and final solid-liquid separation in the secondary settling tank. Compared with available technology, the present invention has the features of short treating period, high efficiency, simple technological process, high denitrification effect, etc.
Description
Technical field
The present invention relates to a kind of biological sewage treatment high efficiency nitrification novel process, the denitrogenation dephosphorizing that is particularly useful for sewage is handled.
Background technology
The water pollution problem that China's nitrate pollution causes is more serious, and lake " wawter bloom ", coastal waters " red tide " happen occasionally.Body eutrophication has endangered agricultural, fishery, has executed all conglomeraties such as You Ye; And the safety of drinking water hygiene and food constituted a threat to.Administer nitrate pollution at present, common engineering has air stripping method, selectivity ion exchange method, break point chlorination, biological denitrificaion method etc. both at home and abroad, and wherein, biological denitrificaion is most economical effective improvement technology.In the last few years, many countries had strengthened the research to biological denitrificaion, and at theoretical and the technical very quantum jump of all having obtained.With " synchronous nitration-denitrification process ", " anaerobic ammonia oxidation process " etc. is the priority appearance of large quantities of new bio denitride technologies of sign, not only remedied traditional nitrated-defective of denitrification process, improved denitrogenation of waste water efficient, reduce the denitrogenation of waste water cost, also filled up the blank that high concentration nitrogen-containing waste water does not have direct bio-denitrification technology.But existing denitrification process will reach good denitrification effect, must guarantee enough aeration times, to satisfy the raised growth of nitrifying bacteria community, reach nitrated purpose, so the entire reaction time is longer, generally about 8 hours, therefore nitric efficiency is low, and cost is higher.
Summary of the invention
The purpose of this invention is to provide the high efficiency nitrification process of biological sewage treatment that a kind of technology is simple, the reaction times is short, efficient is high, cost is low.
The technical solution adopted in the present invention is: sewage experience anoxic, anaerobic and aerobic biological treatment process, and enter secondary sedimentation basins again and carry out mud-water separation, discharge supernatant liquor in the precipitation, simultaneously part mud is refluxed.Sewage shunted in proportion enter the not aeration tank that constitutes by anoxic pond and anaerobic pond and the water entry between Aerobic Pond and Aerobic Pond and the second pond simultaneously, Aerobic Pond divides the water inlet of the water entry more than three or three, after entering the sewage experience anoxic and anaerobism effect of aeration tank, enter in the Aerobic Pond again, with directly enter sewage in the Aerobic Pond and mix and carry out aeration, mixed solution carries out solid-liquid separation at second pond.Part mud is back to not aeration tank, and the ratio that control mud refluxes guarantees that there are not enough sludge concentrations aeration tank and Aerobic Pond.Being used for the anoxic pond of not aeration tank of sewage disposal and anaerobic pond can build jointly also can divide and build; Aeration tank and Aerobic Pond can not built jointly can divide yet and build; Water entry can be provided with between Aerobic Pond and the second pond, also can not be provided with.
The beneficial effect of a kind of high efficiency nitrification process of biological sewage treatment of the present invention is:
A. transitory efficient.The aeration time of present technique arts demand can shorten greatly, and with the effect of ammonia nitrogen (35mg/L) removal more than 95%, the reaction times is approximately half of traditional nitration processes to aeration about 4 hours.
B. technology is simple.Present technique technology is structurally or all demonstrates the simple advantage of more traditional denitrification process in technical process, the technology comparison smoothness that seems.
C. land seizure is few, and initial cost is economized.Because the sludge concentration in each reactor of present technique technology is higher, speed of reaction improves makes the reaction times shorter, so corresponding reaction volume just can be smaller, that is to say the construction that can reduce structures and reduces entire sewage treatment plant to appropriation of land.Simultaneously, this technology is fairly simple, and devices needed can reduce, and corresponding cost also can reduce.General this technology of using, capital construction and facility investment expense can save about about 1/4 than traditional technology.
D. stable, capacity of resisting impact load is strong, can prevent effectively that sludge bulking from taking place.
E. save working cost, tradition is taken off denitrification process for realizing good denitrification effect, need carry out big ratio (usually at 100-400%) to the nitrification liquid of aeration tank and reflux, and will guarantee that simultaneously sufficiently long aeration time impels ammonia nitrogen nitrated, therefore energy consumption is bigger, and working cost is higher.In actual motion, do not have internal reflux, shortened aeration time simultaneously greatly, therefore can cut down the consumption of energy greatly, save working cost.
Description of drawings
Accompanying drawing is a high efficiency nitrification process of biological sewage treatment schema of the present invention.
Embodiment
Below in conjunction with accompanying drawing one embodiment of the present of invention are further described:
A kind of high efficiency nitrification process of biological sewage treatment of the present invention, not aeration tank and the Aerobic Pond of main units for constituting by anoxic pond, anaerobic pond, anoxic pond in the aeration tank and anaerobic pond can not built jointly can divide yet and build, and aeration tank and Aerobic Pond can not built jointly can divide yet and build.Sewage separation is entered not aeration tank and Aerobic Pond simultaneously, and Aerobic Pond divides four water entry water inlets, is provided with a water entry between Aerobic Pond and the second pond.After entering the sewage experience anoxic and anaerobism effect of aeration tank, enter in the Aerobic Pond again, and directly enter sewage in the Aerobic Pond and mix and carry out aeration, mixed solution enters second pond and carries out mud-water separation then, and part mud is back to not aeration tank.
The operational process of entire sewage treatment system is as follows:
(1) the not aeration tank flooding quantity 45% that constitutes by anoxic pond and anaerobic pond, Aerobic Pond flooding quantity 50%, the water entry flooding quantity between Aerobic Pond and the second pond is 5%; The Aerobic Pond water entry can be a plurality of, if the Aerobic Pond water entry is four, then first and the 4th water entry flooding quantity respectively are that 10%, the second and the 3rd water entry flooding quantity respectively are 15%; Can specifically adjust the water inlet ratio of all water entries according to actual influent quality situation, improve the efficient of ammonia nitrogen oxidation with this;
(2) by control aeration rate size, the content of the dissolved oxygen of Aerobic Pond is maintained about 1-2mg/L;
(3) control reflux ratio, guarantee not aeration tank and Aerobic Pond have enough sludge concentrations (＞3000mg/L), make Aerobic Pond be in high sludge concentration and low nutritional status, suppress the propagation of decarburization microorganism relatively, promote nitrifier propagation.
(4) Aerobic Pond first minute water spot is introduced 10% sewage, sludge concentration maintains carries out aeration degradation of organic substances realization decarburization under the higher level, (when sinking pool effluent BOD concentration is low as before) can not carry out aeration and continue to keep denitrification process under specific situation.Mud is back to not the aeration tank to carry out denitrification and discharges phosphorus, constantly regulates every operating parameter in the operational process, reaches optimum up to the operating performance of total system and gets final product.
Claims (4)
1. high efficiency nitrification process of biological sewage treatment, it comprises anoxic, anaerobic and aerobic are carried out a biological disposal upon in proper order, and carry out secondary sedimentation, discharge supernatant liquor in the precipitation, simultaneously part mud is refluxed, it is characterized in that: sewage is shunted in proportion entered the not aeration tank that constitutes by anoxic pond and anaerobic pond and the water entry between Aerobic Pond and Aerobic Pond and the second pond simultaneously, Aerobic Pond divides three or three above water entry water inlets, enter and enter into Aerobic Pond again after the sewage of aeration tank does not experience anoxic and anaerobic process, with directly enter sewage in the Aerobic Pond and mix and carry out aeration, mixed solution carries out solid-liquid separation at second pond.
2. according to right 1 described a kind of high efficiency nitrification process of biological sewage treatment, it is characterized in that: anoxic section in the described not aeration tank and anaerobism section can be built jointly also can divide and build.
3. according to right 1 or 2 described a kind of high efficiency nitrification process of biological sewage treatment, it is characterized in that: described not aeration tank and Aerobic Pond can be built jointly also can divide and build.
4. according to right 1 described a kind of high efficiency nitrification process of biological sewage treatment, it is characterized in that: water entry can be provided with between Aerobic Pond and the second pond, also can not be provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100945609A CN100412009C (en) | 2005-09-27 | 2005-09-27 | High efficiency nitrification process of biological sewage treatment |
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|---|---|---|---|
| CNB2005100945609A CN100412009C (en) | 2005-09-27 | 2005-09-27 | High efficiency nitrification process of biological sewage treatment |
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| Publication Number | Publication Date |
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| CN1772655A true CN1772655A (en) | 2006-05-17 |
| CN100412009C CN100412009C (en) | 2008-08-20 |
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| CNB2005100945609A Expired - Fee Related CN100412009C (en) | 2005-09-27 | 2005-09-27 | High efficiency nitrification process of biological sewage treatment |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101327990B (en) * | 2008-07-18 | 2011-01-12 | 台州盛世环境工程有限公司 | Method for processing sewerage by A/O biological contact oxidation process |
| CN101985385A (en) * | 2010-12-01 | 2011-03-16 | 东南大学 | Biological sewage treatment method for enhancing removal of estrogens |
| CN101439917B (en) * | 2008-12-10 | 2011-08-10 | 中国矿业大学 | Anaerobic adsorption dephosphorization and denitrification process |
| CN102249412A (en) * | 2011-05-20 | 2011-11-23 | 中国矿业大学 | Multistage anoxic and anaerobic circulation tail section anoxic activated sludge treatment process and system |
| CN102276062A (en) * | 2011-05-20 | 2011-12-14 | 中国矿业大学 | Multistage anaerobic and anoxic circulating final segment aerobic activated sludge process |
| CN104478081A (en) * | 2014-12-01 | 2015-04-01 | 中国矿业大学 | Anaerobic-anoxic/aerobic-parallel reinforced dephosphorization and denitrification technique |
| CN108585205A (en) * | 2018-06-22 | 2018-09-28 | 江苏艾特克环境工程设计研究院有限公司 | A kind of A/O sewage-treatment plants and sewage treatment process |
| CN109052646A (en) * | 2018-08-09 | 2018-12-21 | 湖南博世科环保科技有限公司 | A kind of sewage-treatment plant |
| CN115072876A (en) * | 2022-07-20 | 2022-09-20 | 长春工程学院 | Method for inhibiting filamentous bacterium sludge bulking through sectional water inflow and application thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998001397A1 (en) * | 1996-07-10 | 1998-01-15 | Aqua-Aerobic Systems, Inc. | Multi-phase dual cycle influent process |
| CN1382648A (en) * | 2002-06-17 | 2002-12-04 | 深圳市龙岗区平湖污水处理厂 | Process for treating city sewage by hydrolysis-anaerobic-anoxic-aerobic method |
| CN2646141Y (en) * | 2003-10-14 | 2004-10-06 | 周增炎 | Charge lowering inversion A/A/O denitrogenation and dephosphorization water treatment device |
-
2005
- 2005-09-27 CN CNB2005100945609A patent/CN100412009C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101327990B (en) * | 2008-07-18 | 2011-01-12 | 台州盛世环境工程有限公司 | Method for processing sewerage by A/O biological contact oxidation process |
| CN101439917B (en) * | 2008-12-10 | 2011-08-10 | 中国矿业大学 | Anaerobic adsorption dephosphorization and denitrification process |
| CN101985385A (en) * | 2010-12-01 | 2011-03-16 | 东南大学 | Biological sewage treatment method for enhancing removal of estrogens |
| CN102249412A (en) * | 2011-05-20 | 2011-11-23 | 中国矿业大学 | Multistage anoxic and anaerobic circulation tail section anoxic activated sludge treatment process and system |
| CN102276062A (en) * | 2011-05-20 | 2011-12-14 | 中国矿业大学 | Multistage anaerobic and anoxic circulating final segment aerobic activated sludge process |
| CN102249412B (en) * | 2011-05-20 | 2013-02-13 | 中国矿业大学 | Multistage anoxic and anaerobic circulation tail section anoxic activated sludge treatment process and system |
| CN104478081A (en) * | 2014-12-01 | 2015-04-01 | 中国矿业大学 | Anaerobic-anoxic/aerobic-parallel reinforced dephosphorization and denitrification technique |
| CN108585205A (en) * | 2018-06-22 | 2018-09-28 | 江苏艾特克环境工程设计研究院有限公司 | A kind of A/O sewage-treatment plants and sewage treatment process |
| CN108585205B (en) * | 2018-06-22 | 2023-06-16 | 江苏艾特克环境工程设计研究院有限公司 | A/O sewage treatment device and sewage treatment process |
| CN109052646A (en) * | 2018-08-09 | 2018-12-21 | 湖南博世科环保科技有限公司 | A kind of sewage-treatment plant |
| CN115072876A (en) * | 2022-07-20 | 2022-09-20 | 长春工程学院 | Method for inhibiting filamentous bacterium sludge bulking through sectional water inflow and application thereof |
| CN115072876B (en) * | 2022-07-20 | 2023-12-08 | 长春工程学院 | Method for inhibiting filamentous fungus sludge expansion by segmented water inflow and application thereof |
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| Publication number | Publication date |
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| CN100412009C (en) | 2008-08-20 |
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Granted publication date: 20080820 Termination date: 20170927 |