CN101880101A - Composite technology for treatment of urban wastewater in complete set of physical and chemical methods - Google Patents
Composite technology for treatment of urban wastewater in complete set of physical and chemical methods Download PDFInfo
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- CN101880101A CN101880101A CN2010101048762A CN201010104876A CN101880101A CN 101880101 A CN101880101 A CN 101880101A CN 2010101048762 A CN2010101048762 A CN 2010101048762A CN 201010104876 A CN201010104876 A CN 201010104876A CN 101880101 A CN101880101 A CN 101880101A
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Abstract
The invention provides a composite technology for treatment of urban wastewater in a complete set of physical and chemical methods. When the urban wastewater flows into the system, large-particle impurities are basically removed through a grille, the wastewater is then rapidly mixed with a plurality of compound medical preparations and returning chemical sludge in a multi-point dosing mixer and then flows into an efficient complex coagulation-precipitation system for flocculation and precipitation, the supernate after precipitation flows into a multi-phase composite filter, and water is finally discharged after filtration, ion exchange and adsorption. The chemical sludge can be further used for processing building materials after stabilization, acidification, alkalization and chemical phosphorus recovery, thereby realizing the utilization of the sludge resource. The invention has the advantages of low requirements for the ambient temperature and flexible starting and operation. Compared with the complex process for advanced treatment with serial combination of the traditional secondary biological treatment, coagulation, precipitation and filtration, the invention shortens the overall treatment flow, and effectively reduces the infrastructure investment cost.
Description
Technical field:
Patent of the present invention belongs to water-treatment technology field, relates to a kind of composite technology for treatment of urban wastewater in complete set of physical and chemical methods.
Background technology:
Along with fast development of national economy, the water surrounding of China is being faced with serious pressure and great challenge.China has now built up a large amount of municipal sewage plants, and this cuts down pollutant emission for alleviating environmental pressure, improves water surrounding and has played crucial effect.According to " national economy and social development statistical communique ", also need newly-built more than 1000 municipal sewage plants to the whole nation in 2010, newly-increased processing power 2,600 ten thousand m
3/ d.But sewage disposal is the energy intensive industry.At present, China has now and newly-built municipal sewage plant's majority is biological second-stage treatment, for a long time, because this technology exists: investment construction cost height, operation expense height, aeration energy consumption is big, is difficult to reach synchronous denitrification dephosphorizing, and have problems such as producing the mud foul smell, all hindered the construction and the operation of China municipal sewage plant to a certain extent.Along with problems such as water surrounding destruction and shortage of water resources are on the rise, it is " water cycle is utilized again " of core that the leading target of present China municipal sewage treatment has begun to be changed into the water quality manipulation of regeneration by traditional " sewage disposal, qualified discharge "; Change the reuse of water into by the simple purification of sewage.Traditional sewage treatment process has been difficult to adapt to current strict emission standard.Can only further add " tertiary treatment " systems such as traditional coagulating sedimentation, filtration along traditional processing technology routine, this has increased complexity, construction investment and the working cost of system greatly.In addition, China's municipal effluent biodegradability can be relatively poor, and biological treatment does not have broad applicability.Therefore efficient treatment process becomes city domestic sewage processing research focus.The materialization treatment technology has natural condition to retrain less, take up an area of characteristics such as province, flow process weak point, capital construction and working cost are low, simple to operate, and becomes the method for the treatment of city waste water that has competitive power.Therefore, be necessary to launch on this basis comprehensive sewage physicochemical method Processing Technology Research.The complete materialization treatment technology that is applicable to China's municipal effluent characteristics of various physical chemistry method exploitations in conjunction with " one-level processing " and " tertiary treatment ".
Summary of the invention:
In order to address the above problem, the invention provides a kind of composite technology for treatment of urban wastewater in complete set of physical and chemical methods.Municipal effluent at first passes through the grid device, with part large granular impurity interception, prevents that these impurity from entering behind the follow-up system its obstruction.This section grid device is provided with automatic sludge discharge, Butterworth Hatch, easy access and cleaning.Enter multiple spot dosing mixing tank through sewage behind the grid device, carry out short mix with the chemical sludge of multiple compound drug and backflow, sewage enters efficient complex coagulation settling tank and flocculates, precipitates afterwards, the supernatant liquor of post precipitation enters heterogeneous Compound filter pool, filters therein, final outflow water after the ion-exchange, absorption.Chemical sludge is through stable, acidifying, alkalization, and after the chemical phosphorus recovery, further processing is used for material of construction, has realized the recycling of mud.
Multiple spot dosing mixing tank is characterized in that: the mixing tank multiple spot is provided with dosing mouth, and internal discontinuity is provided with mixing device; Mixing tank main body and component are made by materials such as stainless steel, carbon steel or glass reinforced plastic, owing to strengthened fine mass transfer of fluidic, make this mixing tank have and mix abundant, rapid, characteristics such as head loss is little, difficult obstruction, for follow-up treatment process has been established good basis.
Efficient complex coagulation settling tank is characterized in that:
A) medicine that adds of efficient complex coagulation settling tank can be multiple combinations such as polymerize aluminum chloride, poly-ferric chloride, polymeric aluminium ferrum silicate, modified alta-mud, chitosan, modified coal ash or polyacrylamide, determines the kind of compound drug and adds dose according to concrete water quality situation;
B) in the efficient complex coagulation settling tank, the backflow of chemical sludge can be saved original added amount of chemical, increases the aggregate probability of collision, improves coagulation efficiency; Return sludge ratio is: 10～40%;
C) in the efficient complex coagulation settling tank, waterpower turbulent mass transfer effect is obvious, and the reaction times is 15～30min, and the settling tank upflow velocity is 1.8～2.0mm/s, effectively saves flocculation, sedimentation time, has realized the high efficiency of municipal sewage treatment.
Heterogeneous Compound filter pool is characterized in that: be provided with filtering layer, adsorption layer, ion exchange layer in the heterogeneous Compound filter pool; Filler can be multiple combinations such as zeolite, diatomite, wilkinite, carbon fiber, granulated active carbon in the pond; Determine the packed height of filling kind, packing layer order and every layer according to the water quality situation; Sewage is further removed suspended substance, dissolved organic matter, ammonia nitrogen etc. in the water by filtration, absorption, ion exchange in heterogeneous Compound filter pool.
Beneficial effect of the present invention:
1. the present invention does not need aeration, has reduced power consumption;
2. the present invention selects multiple compound drug for use, can effectively realize synchronous denitrification dephosphorizing;
3. the present invention does not produce waste gas, and the mud that is produced can recycling by reasonable disposal;
4. the present invention is lower to temperature requirement, starts and flexible operation;
5. compare traditional two stage biological and handle to connect with the coagulating sedimentation filtration and carry out the complicated technology of advanced treatment, the present invention has shortened the bulk treatment flow process, effectively reduces the initial cost expense.
Description of drawings:
Fig. 1 is a kind of composite technology for treatment of urban wastewater in complete set of physical and chemical methods schema
Among Fig. 2: 1. the grid device, 2., multiple spot dosing mixing tank 3. efficient complex coagulation settling tanks, 4. heterogeneous Compound filter pool, 5. mud refluxes.
Embodiment:
The 2 concrete operational processs of introducing total system in conjunction with the accompanying drawings:
Former water SS:150-160mg/L; COD:200-220mg/L; TN:30-40mg/L; TP:4-6mg/L.After municipal effluent enters native system, tentatively remove the chemical sludge (5) that enters multiple spot dosing mixing tank (2) and multiple compound drug and backflow behind the large granular impurity through (1) grid device and carry out short mix, sewage enters efficient complex coagulation settling system (3) and flocculates, precipitates afterwards, the supernatant liquor of post precipitation enters heterogeneous Compound filter pool (4), filters therein, water outlet after the ion-exchange, absorption.Final outflow water SS:18mg/L; COD:46mg/L; TN:12mg/L; TP:0.4mg/L; Reach the standard of one-level A among the sewage discharge GB189198-2002.
Claims (4)
1. a composite technology for treatment of urban wastewater in complete set of physical and chemical methods comprises that grid device, multiple spot dosing mixing tank, efficient complex coagulation settling tank, heterogeneous Compound filter pool, mud reflux; It is characterized in that: municipal effluent enters native system, tentatively remove the chemical sludge (5) that enters multiple spot dosing mixing tank (2) and multiple compound drug and backflow behind the large granular impurity through grid device (1) and carry out short mix, sewage enters efficient complex coagulation settling tank (3) and flocculates, precipitates afterwards, the supernatant liquor of post precipitation enters heterogeneous Compound filter pool (4), filters therein, final outflow water after the ion-exchange, absorption; Chemical sludge is through stable, acidifying, alkalization, and after the chemical phosphorus recovery, further processing is used for material of construction, has realized the recycling of mud.
2. multiple spot dosing mixing tank according to claim 1, it is characterized in that: the mixing tank multiple spot is provided with dosing mouth, and internal discontinuity is provided with mixing device; Mixing tank main body and component are made by materials such as stainless steel, carbon steel or glass reinforced plastic, owing to strengthened fine mass transfer of fluidic, make this mixing tank have and mix abundant, rapid, characteristics such as head loss is little, difficult obstruction, for follow-up treatment process has been established good basis.
3. efficient complex coagulation settling tank according to claim 1 is characterized in that:
A) medicine that adds of efficient complex coagulation settling tank can be multiple combinations such as polymerize aluminum chloride, poly-ferric chloride, polymeric aluminium ferrum silicate, modified alta-mud, chitosan, modified coal ash or polyacrylamide, determines the kind of compound drug and adds dose according to concrete water quality situation;
B) in the efficient complex coagulation settling tank, the backflow of chemical sludge can be saved original added amount of chemical, increases the aggregate probability of collision, improves coagulation efficiency; Return sludge ratio is: 10～40%;
C) in the efficient complex coagulation settling tank, waterpower turbulent mass transfer effect is obvious, and the reaction times is 15～30min, and the settling tank upflow velocity is 1.8～2.0mm/s, effectively saves flocculation, sedimentation time, has realized the high efficiency of municipal sewage treatment.
4. heterogeneous Compound filter pool according to claim 1 is characterized in that: be provided with filtering layer, adsorption layer, ion exchange layer in the heterogeneous Compound filter pool; Filler can be multiple combinations such as zeolite, diatomite, wilkinite, carbon fiber, granulated active carbon in the pond; Determine the packed height of filling kind, packing layer order and every layer according to the water quality situation; Sewage is further removed suspended substance, dissolved organic matter, ammonia nitrogen etc. in the water by filtration, absorption, ion exchange in heterogeneous Compound filter pool.
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| CN2010101048762A CN101880101A (en) | 2010-02-03 | 2010-02-03 | Composite technology for treatment of urban wastewater in complete set of physical and chemical methods |
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| CN2010101048762A CN101880101A (en) | 2010-02-03 | 2010-02-03 | Composite technology for treatment of urban wastewater in complete set of physical and chemical methods |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838195A (en) * | 2012-09-14 | 2012-12-26 | 大连格兰清水环境工程有限公司 | Composite flocculant for sewage treatment |
| CN103073148A (en) * | 2011-10-25 | 2013-05-01 | 南京利朗科技有限公司 | Sewage treating process |
| CN103723805A (en) * | 2012-10-10 | 2014-04-16 | 天津市北方园林生态科学技术研究所 | Landscape water body compound flocculating agent and preparation method thereof |
| CN103922451A (en) * | 2014-04-23 | 2014-07-16 | 武汉理工大学 | Environment-friendly polysilicic acid modified montmorillonite composite running water flocculant |
| CN103950403A (en) * | 2014-04-28 | 2014-07-30 | 苏州创维晟自动化科技有限公司 | Novel moveable sewage treatment vehicle |
| CN104445560A (en) * | 2014-12-25 | 2015-03-25 | 唐山城市排水有限公司 | Method for preventing loss of microbes of sewage plant |
| CN105016517A (en) * | 2015-06-26 | 2015-11-04 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Device and method for treating cold feedwater outside converter station |
| CN105236681A (en) * | 2015-10-13 | 2016-01-13 | 沈阳建筑大学 | Modularization treatment system and method for reinforcing quality of secondary effluent through active sludge backflow |
| CN106007336A (en) * | 2016-07-12 | 2016-10-12 | 河南永泽环境科技有限公司 | Sludge dewatering method achieved by combining microwaves with compound flocculating agent |
| CN106495406A (en) * | 2016-11-30 | 2017-03-15 | 济宁璟华环保科技有限公司 | Efficient river regulation method |
| CN107162267A (en) * | 2017-06-16 | 2017-09-15 | 山东省水利科学研究院 | A kind of stagewise environment-friendly engineering apparatus for treating sewage |
| CN108126446A (en) * | 2017-12-29 | 2018-06-08 | 江山市田田设备安装有限公司 | A kind of environment-friendly highly efficient whirlwind foam dust collector |
| CN108409023A (en) * | 2017-09-22 | 2018-08-17 | 王凯军 | A kind of land-saving strengthens the concentration of Magneto separate town sewage carbon source and method of resource |
| CN111304953A (en) * | 2020-04-13 | 2020-06-19 | 江苏理文造纸有限公司 | Papermaking process utilizing biochemical sludge |
| CN111908636A (en) * | 2020-06-28 | 2020-11-10 | 中船第九设计研究院工程有限公司 | Energy-saving pollution-free marine sewage deep treatment and recovery device |
| CN113264612A (en) * | 2021-05-28 | 2021-08-17 | 上海市政工程设计研究总院（集团）有限公司 | Device and method for graded recovery of sewage carbon source |
| CN115140799A (en) * | 2022-08-02 | 2022-10-04 | 内蒙古美赢环保科技有限公司 | Printing and dyeing wastewater treatment agent and preparation method thereof |
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2010
- 2010-02-03 CN CN2010101048762A patent/CN101880101A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103073148A (en) * | 2011-10-25 | 2013-05-01 | 南京利朗科技有限公司 | Sewage treating process |
| CN102838195A (en) * | 2012-09-14 | 2012-12-26 | 大连格兰清水环境工程有限公司 | Composite flocculant for sewage treatment |
| CN103723805A (en) * | 2012-10-10 | 2014-04-16 | 天津市北方园林生态科学技术研究所 | Landscape water body compound flocculating agent and preparation method thereof |
| CN103922451A (en) * | 2014-04-23 | 2014-07-16 | 武汉理工大学 | Environment-friendly polysilicic acid modified montmorillonite composite running water flocculant |
| CN103922451B (en) * | 2014-04-23 | 2016-01-20 | 武汉理工大学 | The modified montmorillonite used compound flocculant for treating tap water of environment-friendly type polysilicon acid |
| CN103950403A (en) * | 2014-04-28 | 2014-07-30 | 苏州创维晟自动化科技有限公司 | Novel moveable sewage treatment vehicle |
| CN104445560A (en) * | 2014-12-25 | 2015-03-25 | 唐山城市排水有限公司 | Method for preventing loss of microbes of sewage plant |
| CN105016517A (en) * | 2015-06-26 | 2015-11-04 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Device and method for treating cold feedwater outside converter station |
| CN105236681A (en) * | 2015-10-13 | 2016-01-13 | 沈阳建筑大学 | Modularization treatment system and method for reinforcing quality of secondary effluent through active sludge backflow |
| CN106007336A (en) * | 2016-07-12 | 2016-10-12 | 河南永泽环境科技有限公司 | Sludge dewatering method achieved by combining microwaves with compound flocculating agent |
| CN106495406A (en) * | 2016-11-30 | 2017-03-15 | 济宁璟华环保科技有限公司 | Efficient river regulation method |
| CN107162267A (en) * | 2017-06-16 | 2017-09-15 | 山东省水利科学研究院 | A kind of stagewise environment-friendly engineering apparatus for treating sewage |
| CN108409023A (en) * | 2017-09-22 | 2018-08-17 | 王凯军 | A kind of land-saving strengthens the concentration of Magneto separate town sewage carbon source and method of resource |
| CN108126446A (en) * | 2017-12-29 | 2018-06-08 | 江山市田田设备安装有限公司 | A kind of environment-friendly highly efficient whirlwind foam dust collector |
| CN108126446B (en) * | 2017-12-29 | 2020-08-25 | 江山市田田设备安装有限公司 | Environment-friendly efficient cyclone water foam dust collector |
| CN111304953A (en) * | 2020-04-13 | 2020-06-19 | 江苏理文造纸有限公司 | Papermaking process utilizing biochemical sludge |
| CN111908636A (en) * | 2020-06-28 | 2020-11-10 | 中船第九设计研究院工程有限公司 | Energy-saving pollution-free marine sewage deep treatment and recovery device |
| CN113264612A (en) * | 2021-05-28 | 2021-08-17 | 上海市政工程设计研究总院（集团）有限公司 | Device and method for graded recovery of sewage carbon source |
| CN115140799A (en) * | 2022-08-02 | 2022-10-04 | 内蒙古美赢环保科技有限公司 | Printing and dyeing wastewater treatment agent and preparation method thereof |
| CN115140799B (en) * | 2022-08-02 | 2023-10-20 | 内蒙古美赢环保科技有限公司 | Printing and dyeing wastewater treatment agent and preparation method thereof |
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Open date: 20101110 |