CN100368313C - Intensified mixed coagulation and dynamic film integrated waste water treating process - Google Patents
Intensified mixed coagulation and dynamic film integrated waste water treating process Download PDFInfo
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- CN100368313C CN100368313C CNB2006100444154A CN200610044415A CN100368313C CN 100368313 C CN100368313 C CN 100368313C CN B2006100444154 A CNB2006100444154 A CN B2006100444154A CN 200610044415 A CN200610044415 A CN 200610044415A CN 100368313 C CN100368313 C CN 100368313C
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- Prior art keywords
- dynamic
- aeration
- sewage
- reactor
- district
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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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- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention relates to an intensified coagulation and dynamic film integrated wastewater treatment technique which belongs to the technical field of environment engineering. An intensified coagulation technique and a dynamic film technique are organically combined by the present invention. In an integral reactor, because wastewater is sufficiently mixed with medicaments and reacts with the medicaments by aeration, a flocculating body produced by coagulation reaction is filtered by a base material to form a gelatin layer and a filtering cake layer. The gelatin layer and the filtering cake layer perform the function of microfiltration. Most of contaminants can be removed through the coagulation function of the wastewater and the medicaments and the filtration function of a dynamic film, and partial organic substances can be removed by the aeration function in the process. The present invention has the characteristics of small occupation area, economy and high efficiency.
Description
Technical field
The present invention relates to a kind of sewage treatment process, be specifically related to enhanced coagulation and dynamic film integrated waste water treating process, belong to field of environment engineering technology.
Background technology
Enhanced coagulation is on the basis of conventional coagulation, a kind of water technology that grows up based on the exploitation of novel coagulating agent, dosage or the preferred coagulating agent by improving coagulating agent or optimize the process that operating parameter improves pollutants removal rate.Handle by comparison with traditional one-level, the settling tank size of enhanced coagulation arts demand only needs half of traditional one-level processing, and promptly enhanced coagulation technology can be handled 2 times of sewage of handling to traditional one-level under same settling tank volume.This is serious for water pollution, handles insufficient funds, and the water body that the discharging water body has big dilution capacity is highly significant.
In the Dynamic Membrane reactor, sewage filters by base material, and the surface of base material can progressively form dynamic rete, possesses the crown_interception that is similar to traditional microfiltration membrane, and corresponding filter operation is called dynamic membrane filtering.Dynamic membrane has overcome the shortcoming that the membrane module cost is crossed high restriction membrane technique, has kept most advantages of membrane filtration, and required filter pressure is much smaller, greatly reduce the sewage disposal working cost.
Summary of the invention
The present invention is directed to the reality that present quantity of wastewater effluent is big, the sewage treatment facility processing power far can not satisfy present quantity of wastewater effluent, propose a kind of enhanced coagulation and dynamic film integrated waste water treating process, the present invention is that a kind of floor space is little, the sewage water treatment method of economical and efficient.
Sewage water treatment method of the present invention is the combination of enhanced coagulation technology and Dynamic Membrane technology, used waste disposal plant comprises reactor, water inlet pipe, flow deflector, aeration tube, is covered with the filtration unit of base material, the Dynamic Membrane that forms on the base material, and necessary medicament adds facility.Wherein, reactor comprises coagulating district and Dynamic Membrane district.
Sewage water treatment method of the present invention, step is as follows:
(1) sewage enters the coagulating district of reactor one side, mixes fully with the chemical treatment medicament that adds simultaneously in this zone, realizes mixing of sewage and medicament by the aeration tube aeration of bottom, coagulating district.Under the aeration effect of flow deflector in the coagulating district and bottom, form circulation in the whole reactor, realize that sewage mixes fully with medicament.
(2) sewage after process step (1) coagulating treatment passes through the filtration unit of reactor opposite side again, this filtration unit is that millimetre-sized base material covers by the aperture, sewage after the coagulating treatment passes through base material, progressively form dynamic rete at substrate surface, this rete is gel coat and cake layer from inside to outside, the aperture has the crown_interception that is similar to traditional microfiltration membrane at 0.1～0.5 micron, can reach the isolating effect of good solid-liquid.
(3) the treated water of step (2) is discharged by the rising pipe that leads to reactor top in the filtration unit.
Because aeration is realized the thorough mixing of medicament, the aeration interaction energy is realized organic part removal in this process in the whole reactor.The Dynamic Membrane surface can form " microbial film " gel coat that one deck has viscosity, the part of can degrading pollutent in the long-time running process.Most of pollutent is removed through the dynamic membrane filtering effect by sewage and medicament coagulation again.
(4) sewage thickens forming the increase along with reactor working time of cake layer in the Dynamic Membrane process by base material, and the cake layer of realizing Dynamic Membrane that need recoil when reaching certain thickness partly comes off, and forms new Dynamic Membrane again by operation.Aeration tube aeration by below, Dynamic Membrane district reactor bottom is realized Dynamic Membrane regeneration, recovers the flux of Dynamic Membrane.
Preferably, every Dynamic Membrane of aeration tube aeration cleaning of 10-15 hour Dynamic Membrane district below reactor bottom, aeration time was generally 3～10 minutes.
Chemical treatment medicament in the above-mentioned steps (1) generally should comprise coagulating agent, one of coagulant aids or mixing, coagulating agent commonly used has PAC (polymerize aluminum chloride), aluminium iron polychloride (PAFC), bodied ferric sulfate (PFS), APAM (anion-polyacrylamide), CPAM (cationic-type polyacrylamide), Poly Dimethyl Diallyl Ammonium Chloride (PDMDAAC), wherein APAM (anion-polyacrylamide), CPAM (cationic-type polyacrylamide), Poly Dimethyl Diallyl Ammonium Chloride (PDMDAAC) can be used as PAC (polymerize aluminum chloride) again, aluminium iron polychloride (PAFC), the coagulant aids of bodied ferric sulfate (PFS) uses.Can also add other medicaments according to specific sewage situation, the present invention does not do qualification to this, and the chemical treatment medicament that is used for sewage in the prior art all can use, and the consumption of chemical treatment medicament also can be determined according to the state of the art.
Preferably, the aeration tube aeration rate 0.015～0.05m of bottom, the coagulating district in the above-mentioned steps (1)
3/ m
3Min.
Preferably, the base material of the Dynamic Membrane in the above-mentioned steps (2) can be selected non-woven fabrics, screen cloth or bolting silk for use.
The present invention is enhanced coagulation and dynamic film integrated sewage technology, and the advantage of this technology is integrated enhanced coagulation and Dynamic membrane has been saved necessary settling tank behind the general coagulation, saves the area.Enhanced coagulation and Dynamic Membrane combination process can solve present most of waste water and need handle and this realistic problem of sewage treatment facility processing power wretched insufficiency, have broad application prospects.
Excellent results compared with prior art of the present invention is as follows:
1. method of the present invention is handled the little and traditional one-level of sewage floor space of unit volume and is handled comparatively speaking, because this technology can be saved second pond, has reduced floor space greatly;
2. method working cost of the present invention is low, investment is low, operation is convenient, flexible;
3. method of the present invention is by PO in chemical agent and the sewage
4 3-Effect is produced calcium phosphate precipitation and has been realized the removal of phosphorus in the water body well.
4. handle with respect to traditional two stage biological, enhanced coagulation of the present invention is disposed of sewage, and is serious for water pollution, handles insufficient funds, and the water body that the discharging water body has big dilution capacity is highly significant.If water body has very big dilution capacity after the sewage discharge that enhanced coagulation is handled, degree of treatment not Gao Shike reaches requirement by water body dilution self-purification capacity, and the sewage quantity that this technology unit volume is handled is big, less investment.
5. the technology among the present invention after this art breading, can reduce the load and the working cost of follow-up sewage treatment process for polluting more serious waste water greatly.
The present invention form the base material non-woven fabrics, screen cloth, bolting silk etc. of the required usefulness of Dynamic Membrane cheap, be easy to get.
Description of drawings
Fig. 1 is a sewage disposal test synoptic diagram of the present invention, wherein, 1, sewage inlet pipe, 2, medicament adds, 3, reactor, 4, coagulating district, 5, Dynamic Membrane district, 6, base material, 7, flow deflector, 8, bottom, coagulating district aeration tube, 9, the aeration tube under the Dynamic Membrane district, 10, rising pipe, the camber line direction of arrow among the figure are because the circulation of the water that the aeration effect of bottom, coagulating district forms.
Embodiment
The present invention will be further described below in conjunction with drawings and Examples.
Embodiment 1:
As shown in Figure 1, waste disposal plant comprises reactor 3 (comprising coagulating district 4 and Dynamic Membrane district 5), Dynamic Membrane 6, water distributing pipe, the flow deflector 7 in coagulating district 4, aeration tube 9,10.Sewage water treatment method is as follows:
Sewage is directly introduced in the reactor, coagulating agent PAC (polymerize aluminum chloride) adds 2 by 4 tops, coagulating district, under the effect of bottom, coagulating district one side aeration, mix the aeration tube aeration rate 0.03m of bottom, coagulating district at coagulating district 4 sewage and the coagulating agent that adds
3/ m
3Min.Form circulation in whole reactor, process and the well-mixed sewage of coagulating agent can form circulation in reactor, and the rising pipe 10 from reactor 3 tops after the Dynamic Membrane that treated water passes through to form on the non-woven fabrics base material 6 is discharged.The Dynamic Membrane membrane flux is got 50L/m
2H.The aeration tube of below, Dynamic Membrane district reactor bottom carries out aeration when Dynamic Membrane needs cleaning and regeneration, cleaned a Dynamic Membrane in general 12 hours, and aeration time generally is no more than 10 minutes.
Embodiment 2:
As described in embodiment 1, different is that base material 6 is bolting silks, and coagulating agent is chosen APAM (anion-polyacrylamide).The aeration tube aeration rate 0.05m of bottom, coagulating district
3/ m
3Min.
Embodiment 3: as described in embodiment 1, different is that base material 6 is screen clothes, and coagulating agent is chosen CPAM (cationic-type polyacrylamide).The aeration tube aeration rate 0.02m of bottom, coagulating district
3/ m
3Min.
Embodiment 4: as described in embodiment 1, different is that coagulating agent PAC (polymerize aluminum chloride) adds coagulant aids APAM (anion-polyacrylamide) simultaneously.The aeration tube aeration rate 0.015m of bottom, coagulating district
3/ m
3Min.
Claims (5)
1. enhanced coagulation and dynamic film integrated waste water treating process, step is as follows:
(1) sewage enters the coagulating district of reactor one side, in this zone, mix fully with the chemical treatment medicament that adds simultaneously, by the aeration tube aeration realization sewage of bottom, coagulating district and mixing of medicament, under the aeration effect of flow deflector in the coagulating district and bottom, form circulation in the whole reactor, realize that sewage mixes fully with medicament;
(2) sewage after process step (1) coagulating treatment passes through the filtration unit of reactor opposite side again, this filtration unit is that millimetre-sized base material covers by the aperture, sewage after the coagulating treatment passes through base material, progressively form dynamic rete at substrate surface, this rete is gel coat and cake layer from inside to outside, the aperture has the crown_interception that is similar to traditional microfiltration membrane at 0.1～0.5 micron, can reach the isolating effect of good solid-liquid;
(3) the treated water of step (2) is discharged by the rising pipe that leads to reactor top in the filtration unit.
2. enhanced coagulation as claimed in claim 1 and dynamic film integrated waste water treating process is characterized in that, the aeration tube aeration rate 0.015～0.05m of the bottom, coagulating district in the step (1)
3/ m
3Min.
3. enhanced coagulation as claimed in claim 1 and dynamic film integrated waste water treating process is characterized in that, the base material of the Dynamic Membrane in the step (2) is selected non-woven fabrics, screen cloth or bolting silk for use.
4. enhanced coagulation as claimed in claim 1 and dynamic film integrated waste water treating process, it is characterized in that, sewage thickens forming the increase along with reactor working time of cake layer in the Dynamic Membrane process by base material, the cake layer of realizing Dynamic Membrane that need recoil when reaching certain thickness partly comes off, form new Dynamic Membrane again by operation, realize Dynamic Membrane regeneration by the aeration tube aeration of below, Dynamic Membrane district reactor bottom.
5. enhanced coagulation as claimed in claim 4 and dynamic film integrated waste water treating process is characterized in that, every Dynamic Membrane of aeration tube aeration cleaning of 10-15 hour Dynamic Membrane district below reactor bottom, aeration time is 3～10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100444154A CN100368313C (en) | 2006-03-06 | 2006-03-06 | Intensified mixed coagulation and dynamic film integrated waste water treating process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100444154A CN100368313C (en) | 2006-03-06 | 2006-03-06 | Intensified mixed coagulation and dynamic film integrated waste water treating process |
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| Publication Number | Publication Date |
|---|---|
| CN1821112A CN1821112A (en) | 2006-08-23 |
| CN100368313C true CN100368313C (en) | 2008-02-13 |
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| CNB2006100444154A Expired - Fee Related CN100368313C (en) | 2006-03-06 | 2006-03-06 | Intensified mixed coagulation and dynamic film integrated waste water treating process |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101264999B (en) * | 2008-04-23 | 2010-06-09 | 山东大学 | Process and apparatus for treating sewage |
| CN102050529B (en) * | 2009-10-28 | 2012-09-05 | 轻工业环境保护研究所 | Immersed water treatment device of inner circulating membrane coagulation reactor |
| CN102417273B (en) * | 2011-10-10 | 2013-06-05 | 北京建筑工程学院 | Dynamic membrane purifying reactor and method for removing ammonia nitrogen and organic matters from reclaimed water |
| CN102417250B (en) * | 2011-10-10 | 2013-03-20 | 北京建筑工程学院 | Dynamic membrane purification reactor and method for removing phosphorus from regenerated water |
| CN104709969B (en) * | 2015-03-12 | 2016-08-31 | 辽宁洁辰环保设备有限公司 | A kind of spontaneous membrane filtering method processed for waste water and defecator thereof |
| CN105293755A (en) * | 2015-10-13 | 2016-02-03 | 桂林市春晓环保科技有限公司 | Phosphorus removal method of domestic sewage |
| CN106517542A (en) * | 2016-12-30 | 2017-03-22 | 天津东风节能环保科技有限公司 | Standing-free dynamic membrane formation method and device |
| CN110510824B (en) * | 2019-09-10 | 2024-05-31 | 武汉轻工大学 | Sewage treatment equipment and sewage treatment method based on coagulation reinforced membrane biological reaction tank |
| CN110642436B (en) * | 2019-10-08 | 2022-06-03 | 桂润环境科技股份有限公司 | Deep decolorization treatment system and method for Maotai-flavor liquor brewing wastewater |
| CN114853268A (en) * | 2022-04-22 | 2022-08-05 | 北京华宇辉煌生态环保科技股份有限公司 | High-efficient clarifier of dynamic basic film can wash on line |
| CN114790070B (en) * | 2022-04-22 | 2023-08-08 | 北京华宇辉煌生态环保科技股份有限公司 | High-efficiency clarifier capable of online self-changing dynamic base film |
| CN114772734B (en) * | 2022-05-24 | 2023-07-21 | 北京华宇辉煌生态环保科技股份有限公司 | Sewage treatment device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1799363C (en) * | 1990-11-16 | 1993-02-28 | Московский Научно-Производственный Кооператив "Экология - 2000" | Method for treatment of wastewater from dyeing shops |
| CN2403773Y (en) * | 1999-12-27 | 2000-11-01 | 南京化工大学 | Dynamic membrane water treater |
| US6270671B1 (en) * | 1999-01-08 | 2001-08-07 | United States Filter Corporation | Method and apparatus for microfiltration |
-
2006
- 2006-03-06 CN CNB2006100444154A patent/CN100368313C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1799363C (en) * | 1990-11-16 | 1993-02-28 | Московский Научно-Производственный Кооператив "Экология - 2000" | Method for treatment of wastewater from dyeing shops |
| US6270671B1 (en) * | 1999-01-08 | 2001-08-07 | United States Filter Corporation | Method and apparatus for microfiltration |
| CN2403773Y (en) * | 1999-12-27 | 2000-11-01 | 南京化工大学 | Dynamic membrane water treater |
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| CN1821112A (en) | 2006-08-23 |
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Effective date of registration: 20080516 Address after: Shandong province Zouping County Industrial Park West Patentee after: Xiwang Group Co., Ltd. Address before: No. 27, Da Nan Road, Licheng District, Shandong, Ji'nan Patentee before: Shandong University |
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Effective date of registration: 20090828 Address after: No. 27, Da Nan Road, Licheng District, Shandong, Ji'nan Patentee after: Shandong University Address before: Shandong province Zouping County Industrial Park West Patentee before: Xiwang Group Co., Ltd. |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zibo Jiazhou Chemical Co.,Ltd. Assignor: Shandong University Contract record no.: 2010370000471 Denomination of invention: Intensified mixed coagulation and dynamic film integrated waste water treating process Granted publication date: 20080213 License type: Exclusive License Open date: 20060823 Record date: 20100823 |
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Assignee: Zibo Jiazhou Chemical Co.,Ltd. Assignor: Shandong University Contract record no.: 2010370000471 Date of cancellation: 20120321 |
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Granted publication date: 20080213 Termination date: 20130306 |