CN1843981A - Integrated process for treating sewage by suspended bio-carrier - Google Patents
Integrated process for treating sewage by suspended bio-carrier Download PDFInfo
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- CN1843981A CN1843981A CNA2005100249570A CN200510024957A CN1843981A CN 1843981 A CN1843981 A CN 1843981A CN A2005100249570 A CNA2005100249570 A CN A2005100249570A CN 200510024957 A CN200510024957 A CN 200510024957A CN 1843981 A CN1843981 A CN 1843981A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Biological Treatment Of Waste Water (AREA)
Abstract
The invention relates to a technical sphere of sewage disposal with biology suspended carriers. The invention said integrated biology treatment technology of sewage suspended carriers, comprises the following steps: a, reinforcing flocculating sediment: leading domestic sewage or industrial waste water and sequence stage flow-back miscible liquids into reinforced flocculating sedimentation basin, adding flocculant and mixing them, discharging the sediment from the bottom of settling zone; b, biotreatment and solid-liquid separation of an integral suspended carrier bioreactor: dividing a suspended carrier biology reaction pond with perforated boards or block walls into an anoxic zone, an aerobic zone, a solid-liquid separation zone, adding suspended carriers biology filler into each zone to get the integral suspended carrier bioreactor; making supernate obtained from step a flow into said three zones in turn, discharging sediment sludge from the bottom of the solid-liquid separation zone, the clear water discharger from the upper meeting emission standard. The process saves accommodation area, improves trash-removal effet, and it is suitable to different sewage disposal scale and inflow water quality.
Description
Technical field
The present invention relates to technical field of sewage, particularly a kind of biological suspension carrier that utilizes carries out technical field of sewage treatment.
Background technology
With activated sludge process and biomembrance process is that the traditional wastewater biological treatment of representative has obtained using widely for many years in sanitary sewage and Industrial Wastewater Treatment, these process using secondary sedimentation basinss are as water and the isolating means of suspended substance, and floor space is big, the water quality stability of treat effluent is bad.Some new bio treatment technology cancellations or replacement secondary sedimentation basins are to overcome its deficiency, as BAF, membrane bioreactor, integrated oxidation ditch, mechanical stirring fluidized-bed and Depth Filtration technology (comprising novel filtrate combination filtering technique) etc., from using present situation, these integrated processing techniques or technology are mainly used in community's sewage or dispersive small-scale sewage process field, when the sewage disposal scale is increased to the variation water quality of thousands of tons of or water inlet when big, can't bring into play its advantage.
Summary of the invention
The objective of the invention is to overcome the above-mentioned defective of existing sewage treatment process, a kind of different sewage treatment scale and influent quality of can be used in is provided, and the integrated process for treating sewage by suspended bio-carrier that management is simple, working cost is low.
The present invention conceives as follows: utilize flocculation sediment to strengthen and remove suspended substance, colloid and total phosphorus, again by integrated suspending carrier bio-reactor oxygenolysis dissolved organic matter, biological denitrificaion is removed TN.Microbial film that comes off in the biological treatment process and suspended substance are removed in the solid-liquid displacement zone of reaction tank latter end.
A kind of integrated process for treating sewage by suspended bio-carrier of the present invention may further comprise the steps:
A, enhanced flocculation precipitation: the mixed solution of sanitary sewage or trade effluent and latter stage backflow is imported the enhanced flocculation settling tank, and add the flocculation agent mixing, reacted throw out is through bottom, the settling region discharge of enhanced flocculation settling tank;
The biological treatment of b, integrated suspending carrier bio-reactor: the suspending carrier biological reaction tank is separated into oxygen-starved area, aerobic zone and solid-liquid displacement zone by perforated retainer or shelves wall, all throw in each district the suspending carrier biologic packing material, makes integrated suspending carrier bio-reactor like this; After the supernatant liquor that step a obtains flows into above-mentioned three zones of integrated suspending carrier bio-reactor successively, get rid of precipitating sludge from solid-liquid displacement zone lower floor, the clear water of discharging from the upper strata is the water of allow compliance with emission standards.
Integrated process for treating sewage by suspended bio-carrier of the present invention stirs in the flocculation sedimentation tank bottom with air backwash tube or mechanical stirring in the enhanced flocculation precipitate phase, and sewage is at this and reaction of flocculation medicament and generation alumen ustum; Meanwhile, the phosphorus in the sewage also with flocculation medicament generation chemical reaction, generate precipitation, enter the settling region with alumen ustum.In the settling region, most suspended substances (SS), phosphorus and portion C OD are removed.The kind of added flocculation medicament adds dosage and adjusts according to the water quality condition of water inlet based on inorganic or organic polymer coargulator, is generally 40～120mg/L.
A kind of integrated process for treating sewage by suspended bio-carrier of the present invention except that the water outlet of accepting flocculation sedimentation tank, also can be accepted the backflow mixed liquor after the biochemical treatment at the feed-water end of integrated suspending carrier bio-reactor.It is various that each district of integrated suspending carrier bio-reactor adds the shape of floating stuffing, and that the shape of filler has is spherical, column or other shape, and density and water are near, and particle diameter 10～100mm, dosing rate are 30～60%.Water constantly stirs with mechanical stirrer when the oxygen-starved area of integrated suspending carrier bio-reactor, and phegma is realized denitrification at this; After water flowed into aerobic zone, dissolved oxygen (DO) generally was controlled to be 1.5～4mg/L, provided by gas blower, adopted aeration modes such as micro-hole aerator or boring aeration pipe, and remaining reductive pollutants is oxidized to CO in the sewage like this
2And water, NH
3-N is changed into NO by biological nitration
3-N.The aerobic zone water outlet flows into solid-liquid displacement zone again, and suspended substance is filtered and holds back at this, and clear water directly discharges by water outlet baffle plate and rising pipe.Water under the normal circumstances after the biochemical treatment can be back to the feed-water end of water inlet manifold and integrated suspending carrier bio-reactor respectively, realizes refluxing and denitrification; After the mud-water separation deleterious of solid-liquid displacement zone, open the valve of air backwash tube, utilize the air of gas blower directly the suspended substance of holding back on the filler to be gone out, be deposited to discharging at the bottom of the pond.
Beneficial effect of the present invention: compare with existing biologic process for treating sewage, integrated process for treating sewage by suspended bio-carrier of the present invention has following advantage:
1, integrated solid-liquid separation step on the basis of common suspending carrier bio-reactor, two precipitations have been cancelled, function in same structures realization bio-oxidation depollution and solid-liquid separation has reduced floor space and has saved capital cost, and the removal effect of pollutent improves;
2, the filler deposition that can directly remove solid-liquid displacement zone under the condition of normal operation need not to carry out specially back flushing and adds the back flushing tank, does not also need extra energy consumption;
3, integrate the inside and outside return-flow system of integrated suspending carrier bio-reactor, both realized the purpose of denitrogenation dephosphorizing, reduced the expense of operation simultaneously again;
4, can be used in different sewage treatment scale and influent quality, after these art breading of employing such as trade effluent as town domestic sewage, heavily contaminated water body, aquiculture waste water and some petroleum industry, water outlet all can reach relevant emission standard, wide adaptability.
Description of drawings
Fig. 1 is the schema of integrated process for treating sewage by suspended bio-carrier of the present invention.
Fig. 2 is the concrete enforcement synoptic diagram of integrated process for treating sewage by suspended bio-carrier of the present invention.
Embodiment
The specific implementation process of integrated process for treating sewage by suspended bio-carrier of the present invention is described with concrete example below.
As shown in Figure 2, sanitary sewage, aquiculture waste water etc. enter the reaction zone 31 of flocculation sedimentation tank by water inlet pipe 1, under meter 2, and the flocculation medicament is dissolved in dosing tank 5, squeezes into water inlet manifold by volume pump 51 and chemical feed pipe 52 again.Water inlet manifold is also accepted the mixed solution after return line 11 biochemical treatments.Sewage, flocculation agent, backflow mixed liquor enter the reaction zone 31 of flocculation sedimentation tank after water inlet manifold converges, realize short mix, reaction and generate big alumen ustum by first air stirring pipe 311 and second air stirring pipe 312; Meanwhile, the phosphorus in the sewage also generates throw out with flocculation medicament generation chemical reaction.Muddy water mixed solution after the flocculation reaction enters the settling region 32 of flocculation sedimentation tank by flow apron 321, here, and suspended substance and sewage preliminary sedimentation.Water outlet after just heavy flows into integrated suspending carrier bio-reactor 4 certainly by rising pipe 322; The mud of settling region by sludge pipe 323 dischargings, is further handled after bucket stores for some time again.
Integrated suspending carrier bio-reactor 4 is divided into oxygen-starved area 41, aerobic zone 42 and solid-liquid displacement zone 43.The phegma of flocculation basin water outlet and return line 10 from flowing into oxygen-starved area 41, promotes that by mechanical stirring device microorganism mixes with pollutent together, and the dissolved organic matter in the water can be used as the required carbon source of denitrification, realizes biological denitrificaion and removes portion C OD.The oxygen-starved area water outlet is from flowing into aerobic zone, on the attached growth of microorganisms of aerobic zone and the suspending carrier biologic packing material, total biomass can reach 2.5～4.0g/L, the required oxygen of microorganism aerobic metabolism is provided by gas blower, adopt aeration modes such as micro-hole aerator or boring aeration pipe, DO generally remains 1.5～4mg/L, organism, the NH of remnants in the water
3-N is by various aerobic microbiological oxidations, decomposition on the suspending carrier.Water after the purification, the microbial film that comes off, suspended substance etc. enter solid-liquid displacement zone 43, and place floating stuffing and is used to hold back and filter suspended substance in this district; The back flushing that the air backwash tube is used for packing layer is placed in the bottom.Through solid-liquid separation, clear water effluxes by water outlet baffle plate 432, rising pipe 433 water after the biochemical treatment at this; When the solid-liquid displacement zone packing layer hold back deleterious the time, open the valve of air backwash tube 431, carry out back flushing, the muddy water mixed solution after the back flushing effluxes by first shore pipe 434 and second shore pipe 435, mud is further handled again.Water outlet after the biochemical treatment also can flow into the feed-water end of flocculation sedimentation tank or integrated suspending carrier bio-reactor again by shore pipe 434, return line 436 and reflux pump 8.
Adopt certain samll cities and towns' combined system sewage of this art breading, the NH of water inlet
3-N is 20～35mg/L, COD
CrBe 200～350mg/l, TP is 3～8mg/L, and SS is 140～300mg/L, and the water outlet after above-mentioned steps is handled can reach NH
3-N is 5～12mg/L, COD
CrBe 40～70mg/L, TN is less than 20mg/L, and TP is 0.8～1.5mg/L, and SS is less than 30mg/L.
Town domestic sewage, aquiculture waste water or other trade effluent also can reach national relevant emission standards after purifying through biologic process for treating sewage of the present invention.
Claims (9)
1, a kind of integrated process for treating sewage by suspended bio-carrier may further comprise the steps:
A, enhanced flocculation precipitation: the mixed solution of sanitary sewage or trade effluent and latter stage backflow is imported the enhanced flocculation settling tank, add flocculation agent and mix, reacted throw out is through the discharge of bottom, settling region;
The biological treatment of b, integrated suspending carrier bio-reactor: the suspending carrier biological reaction tank is separated into oxygen-starved area, aerobic zone and solid-liquid displacement zone by perforated retainer or shelves wall, each district all adds the suspending carrier biologic packing material, makes integrated suspending carrier bio-reactor; After the supernatant liquor that step a is obtained flowed into above-mentioned three zones of integrated suspending carrier bio-reactor successively, precipitating sludge was derived by solid-liquid displacement zone lower floor, and clear water is discharged on the upper strata.
2, integrated process for treating sewage by suspended bio-carrier as claimed in claim 1 is characterized in that added coagulated agent is inorganic or organic polymer coargulator, and the dosage that adds is 40～120mg/L.
3, integrated process for treating sewage by suspended bio-carrier as claimed in claim 2, the mode that it is characterized in that flocculation reaction is air mixed or mechanically mixing.
4, integrated process for treating sewage by suspended bio-carrier as claimed in claim 1, it is near to it is characterized in that each district of integrated suspending carrier bio-reactor adds the density and the water of floating stuffing, and dosing rate is 30～60%.
5, integrated process for treating sewage by suspended bio-carrier as claimed in claim 1 is characterized in that the particle diameter that each district of integrated suspending carrier bio-reactor adds floating stuffing is 10～100mm.
6, integrated process for treating sewage by suspended bio-carrier as claimed in claim 1 when it is characterized in that water flows into the oxygen-starved area of integrated suspending carrier bio-reactor, adopts the mechanical stirring mode to realize mixing and denitrification.
7, integrated process for treating sewage by suspended bio-carrier as claimed in claim 1 is characterized in that adopting micropore or perforated pipe aerating regulation mode after water flows into aerobic zone, and dissolved oxygen is controlled at 1.5～4mg/L.
8, integrated process for treating sewage by suspended bio-carrier as claimed in claim 1 is characterized in that after the mud-water separation deleterious of solid-liquid displacement zone the suspended substance of holding back on the filler being gone out, and is deposited to discharging at the bottom of the pond.
9, integrated process for treating sewage by suspended bio-carrier as claimed in claim 1 is characterized in that: the biochemical treatment effluent recycling is to the feed-water end of total system or the feed-water end of integrated suspending carrier bio-reactor.
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| CNB2005100249570A CN100376496C (en) | 2005-04-07 | 2005-04-07 | Integrated process for treating sewage by suspended bio-carrier |
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| CNB2005100249570A CN100376496C (en) | 2005-04-07 | 2005-04-07 | Integrated process for treating sewage by suspended bio-carrier |
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| CN1843981A true CN1843981A (en) | 2006-10-11 |
| CN100376496C CN100376496C (en) | 2008-03-26 |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100429164C (en) * | 2006-12-26 | 2008-10-29 | 南京大学 | Method of treating domestic sewage dispersively and its reactor |
| CN102757154A (en) * | 2012-07-19 | 2012-10-31 | 北京世纪国瑞环境工程技术有限公司 | Efficient fecal sewage treatment method |
| CN103663880A (en) * | 2013-12-26 | 2014-03-26 | 贵州天福化工有限责任公司 | Method for treating sewage by biofilm technology |
| CN104276731A (en) * | 2009-07-08 | 2015-01-14 | 沙特阿拉伯石油公司 | Wastewater treatment system and process including irradiation of primary solids |
| CN104891747A (en) * | 2015-06-05 | 2015-09-09 | 窦欣童 | Method for treating quinoline pollutants in wastewater |
| CN104944700A (en) * | 2015-06-05 | 2015-09-30 | 窦欣童 | Method for treating quinoline pollutants in sewage |
| CN105873863A (en) * | 2013-11-22 | 2016-08-17 | 萨德·A·加利卜 | Enhanced treatment shaft |
| CN106986463A (en) * | 2017-04-26 | 2017-07-28 | 中林山水（北京）生态科技股份有限公司 | Ecological purification system and method for handling black and odorous water |
| CN107986557A (en) * | 2017-11-17 | 2018-05-04 | 浙江海洋大学 | A kind of synchronous coupled biological treatment process for removing agricultural runoff nitrogen phosphorus |
| CN108423825A (en) * | 2018-03-08 | 2018-08-21 | 大连理工大学 | A method of the biologic process for treating sewage upgrade expanding activated sludge process based on functional suspending carrier |
| CN108862832A (en) * | 2018-06-25 | 2018-11-23 | 安徽建筑大学 | Method and reactor for integrally purifying micro-polluted source water by using micro-flocculation biological carbon biomembrane AO |
| CN109399870A (en) * | 2018-12-19 | 2019-03-01 | 清华-伯克利深圳学院筹备办公室 | A kind of integration Short-range efficient sewage-treatment plant and method for treating water |
| CN109574392A (en) * | 2018-12-19 | 2019-04-05 | 中电环保股份有限公司 | A kind of integrated apparatus and method purifying black-odor riverway sewage |
| CN111186955A (en) * | 2020-01-09 | 2020-05-22 | 西安理工大学 | Method for treating black and odorous water in cities and towns |
| CN111792783A (en) * | 2020-07-15 | 2020-10-20 | 天津大学 | Distributed sewage treatment method for reinforced AO (anaerobic-anoxic-oxic) process by loading coagulation coupling biological membrane |
| CN111943462A (en) * | 2019-12-20 | 2020-11-17 | 重庆大学 | Adjusting pretreatment tank with water quality purification function |
| TWI758195B (en) * | 2021-06-02 | 2022-03-11 | 環新生物工程有限公司 | Organic wastewater treatment equipment and method |
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| CN103073156B (en) * | 2013-01-24 | 2014-09-17 | 安庆和兴化工有限责任公司 | Method for treating poly butylene succinate production waste water by biochemical method |
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| FR2707621B1 (en) * | 1993-07-12 | 1995-10-20 | Omnium Traitement Valorisa | Process and installation for purifying water with denitrifying physico-chemical sludge. |
| KR100405899B1 (en) * | 2003-04-22 | 2003-11-14 | Hyung Soo Kim | Wastewater treatment system using membrane activated sludge process combined with biofilm and coagulation process |
| CN100522847C (en) * | 2004-09-16 | 2009-08-05 | 同济大学 | Physiochemical and biochemical interactive city sewage treating method |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100429164C (en) * | 2006-12-26 | 2008-10-29 | 南京大学 | Method of treating domestic sewage dispersively and its reactor |
| CN104276731A (en) * | 2009-07-08 | 2015-01-14 | 沙特阿拉伯石油公司 | Wastewater treatment system and process including irradiation of primary solids |
| CN104276731B (en) * | 2009-07-08 | 2017-06-06 | 沙特阿拉伯石油公司 | The Waste Water Treatment and method of the radiation including primary solids |
| CN102757154A (en) * | 2012-07-19 | 2012-10-31 | 北京世纪国瑞环境工程技术有限公司 | Efficient fecal sewage treatment method |
| CN105873863A (en) * | 2013-11-22 | 2016-08-17 | 萨德·A·加利卜 | Enhanced treatment shaft |
| CN103663880A (en) * | 2013-12-26 | 2014-03-26 | 贵州天福化工有限责任公司 | Method for treating sewage by biofilm technology |
| CN103663880B (en) * | 2013-12-26 | 2016-08-17 | 贵州天福化工有限责任公司 | A kind of biomembrance process processes the method for sewage |
| CN104891747A (en) * | 2015-06-05 | 2015-09-09 | 窦欣童 | Method for treating quinoline pollutants in wastewater |
| CN104944700A (en) * | 2015-06-05 | 2015-09-30 | 窦欣童 | Method for treating quinoline pollutants in sewage |
| CN106986463A (en) * | 2017-04-26 | 2017-07-28 | 中林山水（北京）生态科技股份有限公司 | Ecological purification system and method for handling black and odorous water |
| CN107986557A (en) * | 2017-11-17 | 2018-05-04 | 浙江海洋大学 | A kind of synchronous coupled biological treatment process for removing agricultural runoff nitrogen phosphorus |
| CN107986557B (en) * | 2017-11-17 | 2020-11-17 | 浙江海洋大学 | Coupling biological treatment process for synchronously removing nitrogen and phosphorus in agricultural runoff |
| CN108423825A (en) * | 2018-03-08 | 2018-08-21 | 大连理工大学 | A method of the biologic process for treating sewage upgrade expanding activated sludge process based on functional suspending carrier |
| CN108862832A (en) * | 2018-06-25 | 2018-11-23 | 安徽建筑大学 | Method and reactor for integrally purifying micro-polluted source water by using micro-flocculation biological carbon biomembrane AO |
| CN109399870A (en) * | 2018-12-19 | 2019-03-01 | 清华-伯克利深圳学院筹备办公室 | A kind of integration Short-range efficient sewage-treatment plant and method for treating water |
| CN109574392A (en) * | 2018-12-19 | 2019-04-05 | 中电环保股份有限公司 | A kind of integrated apparatus and method purifying black-odor riverway sewage |
| CN111943462A (en) * | 2019-12-20 | 2020-11-17 | 重庆大学 | Adjusting pretreatment tank with water quality purification function |
| CN111943462B (en) * | 2019-12-20 | 2022-06-21 | 重庆大学 | Adjusting pretreatment tank with water quality purification function |
| CN111186955A (en) * | 2020-01-09 | 2020-05-22 | 西安理工大学 | Method for treating black and odorous water in cities and towns |
| CN111792783A (en) * | 2020-07-15 | 2020-10-20 | 天津大学 | Distributed sewage treatment method for reinforced AO (anaerobic-anoxic-oxic) process by loading coagulation coupling biological membrane |
| TWI758195B (en) * | 2021-06-02 | 2022-03-11 | 環新生物工程有限公司 | Organic wastewater treatment equipment and method |
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