CN105084662A - Reclaimed water recycling and treating method - Google Patents
Reclaimed water recycling and treating method Download PDFInfo
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- CN105084662A CN105084662A CN201510497070.7A CN201510497070A CN105084662A CN 105084662 A CN105084662 A CN 105084662A CN 201510497070 A CN201510497070 A CN 201510497070A CN 105084662 A CN105084662 A CN 105084662A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 152
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000004064 recycling Methods 0.000 title abstract 2
- 238000001914 filtration Methods 0.000 claims abstract description 31
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000005189 flocculation Methods 0.000 claims abstract description 15
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 14
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 10
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 9
- 231100000719 pollutant Toxicity 0.000 claims abstract description 9
- 238000001556 precipitation Methods 0.000 claims abstract description 6
- 239000010865 sewage Substances 0.000 claims description 39
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 23
- 230000003311 flocculating effect Effects 0.000 claims description 23
- 229910052799 carbon Inorganic materials 0.000 claims description 19
- 239000002245 particle Substances 0.000 claims description 19
- 239000000126 substance Substances 0.000 claims description 18
- 230000016615 flocculation Effects 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 238000006396 nitration reaction Methods 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 10
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 9
- 239000010802 sludge Substances 0.000 claims description 8
- 229920000592 inorganic polymer Polymers 0.000 claims description 7
- 230000001954 sterilising effect Effects 0.000 claims description 7
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 6
- 238000005273 aeration Methods 0.000 claims description 6
- 238000004062 sedimentation Methods 0.000 claims description 6
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 6
- 230000001580 bacterial effect Effects 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 5
- 239000012467 final product Substances 0.000 claims description 5
- 239000002244 precipitate Substances 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 5
- 239000013049 sediment Substances 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 abstract description 4
- 238000010408 sweeping Methods 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 210000002249 digestive system Anatomy 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000006124 Pilkington process Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007269 microbial metabolism Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to a reclaimed water recycling and treating method. The method comprises the steps of adjusting the quality and quantity of water, filtering biological activated carbon, conducting pre-oxidation precipitation, conducting micro-flocculation filtration and conducting disinfection treatment. By the adoption of the method, reclaimed water meeting the requirement in GB18918-2002 urban reclaimed water treatment pollutant discharge standard for first-grade standard B can be treated, the quality of treated water meets the requirement of GB/T18920-2002 urban reclaimed water recycling-urban miscellaneous water quality, and the treated water can be used for road sweeping, urban landscaping, car washing and the like.
Description
Technical field
The present invention relates to water technology, be specifically related to a kind of Treated sewage reusing treatment process.
Background technology
Middle water reaches certain water quality standard after mainly referring to municipal effluent or sanitary sewage disposal, can reusable undrinkable water within the specific limits, its water quality between Shang Shui and lower water, Treated sewage reusing be then using after municipal effluent processes as renewable resource reuse.Municipal effluent is stablized due to the water yield, initial cost economy, many countries all using Treated sewage reusing as solving the preferred version of water shortage problem.At present, after process water outlet reaches and requires one-level B standard in GB18918-2002 " cities and towns sewerage disposing pollutant emission standard " by some urban wastewater treatment firms, directly discharge enters in river course, causes certain water resource waste.In order to water saving, alleviate the pollution of middle water to environment, realize municipal middle water resource utilization, relevant works technician proposes effective technical scheme.Disclosed in CN104556568A " integrated sewerage disposing device and treatment process thereof ".Integration sewerage disposing equipment is a kind of equipment for wastewater treatment multiple treatment scheme combined.This integrated sewerage disposing device comprises: preaeration tank, vacuum dehydration pipe is inserted with in described preaeration tank, described vacuum dehydration pipe is connected with impeller pump, described impeller pump is connected with hair filter, described hair filter is connected with biological contact oxidation pond, and described biological contact oxidation pond is connected with settling tank, and described settling tank is connected with filter tank, described filter tank is connected with back flushing water tank, and described back flushing water tank is connected with reuse pool.This integrated sewerage disposing device is used for the process of sanitary sewage, is also applicable to the process of other trade effluent that can be biochemical.Described process method step is as follows: sewage is introduced into preaeration tank, carry out the filtration of the foreign material such as hair again through water pump lifting after, send into biological contact oxidation pond and settling tank, finally enter filter tank, be stored in water tank after water filter, when storing water in water tank amount exceedes after filter back washing needs water consumption, treatment facility is automatically outwards confessed and is purified waste water.And for example CN102642992B discloses one " integrated sewerage disposing method ", comprises step: enter sewage collecting pipe after carrying out oil removal process together with other sewage; By source of sewage water by aeration grid interception; Utilize the suspended substance in air-float method removal preliminary treatment water; By double oxygen section to pretreated water process Preset Time, denitrification process is carried out to pretreated water simultaneously; Utilize aerobic microorganism will hold concurrently oxygen section process Organic substance in water decompose; The Digestive system of the first predetermined amount is back in air supporting water inlet, mixes the polymerize aluminum chloride of the second predetermined amount simultaneously; Residue Digestive system is filtered, sterilization, obtain middle water up to standard, and by water direct reuse plumbing unit in up to standard or use water unit.Said process improves the efficiency of air-float technology, ensures the water quality of the middle water obtained.In addition, the integrated treating processes of this treating processes, a centralized processing groove can meet treating processes, it is directly connected on raw waste water pipeline, namely completes installation, reduce production cost.But be not suitable for the process of sewage disposal plant effluent.
Summary of the invention
The object of this invention is to provide a kind of Treated sewage reusing treatment process, it can will reach the middle water requiring one-level B standard in GB18918-2002 " cities and towns sewerage disposing pollutant emission standard ", effluent quality after process meets GB/T18920-2002 " municipal middle water regeneration-urban reclaimed water water quality ", for road-cleaning, urban afforestation, vehicle wash etc.
A kind of Treated sewage reusing treatment process of the present invention, comprises the following steps:
1) the regulating water quality water yield; Sewage work is reached in GB18918-2002 " cities and towns sewerage disposing pollutant emission standard " and required that the secondary treatment yielding water of one-level B standard is from as former water, flow into " pump well " from outlet canal, then introduce " equalizing tank " regulating water quality, the water yield carry out denitrifying biological treatment by submersible sewage pump; In " equalizing tank ", place spherical fixing filler cultivate a large amount of facultative cenobiums, form the Prepositive denitrification section of biological treatment, carry out denitrogenation;
2) biologic active carbon filtration; By submersible sewage pump, the water of " equalizing tank " is introduced in " biologic active carbon filtration pond ", utilize gac for bio-carrier, cultivate the aerobic bacterial classification adapted, form aerobic nitration section and carry out nitration treatment, remove Organic substance in water simultaneously; Oxygen supply adopts rotary blower blast aeration; In addition, the water section of organics removal is back to the Prepositive denitrification section of " equalizing tank ";
3) preoxidation precipitation; Water after biologic active carbon filtration enters " oxidization and sedimentation basin ", adds the KMnO of oxygenant 1.0-2.5mg/L
4or 1.0-2.5mg/L permanganate composite chemical carries out preoxidation, and the inorganic polymer flocculant adding 20-30mg/L carries out flocculation sediment to the particle in water, removes precipitable particle, simultaneously chemical dephosphorization, and the mud discharging of generation is to sludge sump;
4) micro flocculating filter, pumped in " micro flocculating filter pond " by the water after preoxidation precipitates by lift pump, add the polymerize aluminum chloride of 20-30mg/L before pumping into, carry out dosage adjustment according to water inlet suspension content, high-speed mixing is carried out by " having the purifier of pressure-bearing type stepless speed changing vortex reactor " in " micro flocculating filter pond ", baffle plate is set in the exit of this purifier to change the direction of a stream of water, the larger alumen ustum just formed is smashed, tiny flocculation particle enters the filtering layer top area in micro flocculating filter pond, and in filtering layer space, form the active reticulated structure of band, tiny flocculation particle is made to have more contact area, under the condition of height collision probability, secondary carries out abundant contact reacts, generate the filtered tiny flocculation particle that volume is tiny and closely knit, in the filtering layer be attracted under unbalance state, the mud produced regularly blow down to sludge sump through recoil,
5) disinfect; Water after micro flocculating filter enters " sterilization pool ", carries out sterilization and disinfection by adding 10-15mg/L sodium hypochlorite, guarantees that water quality reaches the requirement of GB/T18920-2002 " municipal middle water regeneration-urban reclaimed water water quality ", gets final product reuse.
Further, described " having the purifier of pressure-bearing type stepless speed changing vortex reactor " a kind of purifier having pressure-bearing type stepless speed changing vortex reactor of announcing for CN1072188.
Further, described inorganic polymer flocculant is polymerize aluminum chloride, or polymerized ferric-aluminum chloride.
The present invention adopts biochemistry, physicochemical techniques to require that the water outlet of one-level B standard processes to reaching in GB18918-2002 " cities and towns sewerage disposing pollutant emission standard " after sewage work's process.Vacant lot near sewage disposal plant effluent canal is built " pump well ", pump well is introduced in water outlet; The water (former water) of " pump well " pumped into " equalizing tank " with submersible sewage pump to carry out homogeneous and all measure and the biochemical treatment of Prepositive denitrification, the water outlet of " equalizing tank " utilizes the discrepancy in elevation to flow into " biologic active carbon filtration pond ", or with submersible sewage pump, the water outlet of " equalizing tank " is pumped in " biologic active carbon filtration pond ", carry out nitrated aerobic contact biological treatment, reduce the organic content in water, keep the dissolved oxygen content in water; The water outlet in " biologic active carbon filtration pond " flows into " oxidization and sedimentation basin ", adds oxygenant, reduces organism residual in water, ammonia nitrogen and can not by other material of biochemistry further, then adds polymeric flocculant and carry out settlement separate; The water outlet in " biologic active carbon filtration pond " utilizes lift pump to add in " micro flocculating filter pond ", adds polymeric flocculant simultaneously, reduces the suspended substance in water further; The water outlet in " micro flocculating filter pond " flows into " sterilization pool ", add sodium hypochlorite disinfection, kill the unwanted bacteria in water, make water outlet reach the requirement of GB/T18920-2002 " municipal middle water regeneration-urban reclaimed water water quality ", carry out reuse.
Beneficial effect of the present invention: achieve municipal middle water resource utilization, take full advantage of water resources, has saved town water, and effectively alleviates the pollution of middle water to environment.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further illustrated.
Embodiment one: see Fig. 1, described a kind of Treated sewage reusing treatment process, comprises the following steps:
1) the regulating water quality water yield; Sewage work is reached in GB18918-2002 " cities and towns sewerage disposing pollutant emission standard " and required that the secondary treatment yielding water of one-level B standard is from as former water, flow into " pump well " from outlet canal, then introduce " equalizing tank " regulating water quality, the water yield carry out denitrifying biological treatment by submersible sewage pump; In " equalizing tank ", place spherical fixing filler cultivate a large amount of facultative cenobiums, form the Prepositive denitrification section of biological treatment, carry out denitrogenation;
2) biologic active carbon filtration; By submersible sewage pump, the water of " equalizing tank " is introduced in " biologic active carbon filtration pond ", utilize gac for bio-carrier, cultivate the aerobic bacterial classification adapted, form aerobic nitration section and carry out nitration treatment, remove Organic substance in water simultaneously; Oxygen supply adopts rotary blower blast aeration; In addition, the water section of organics removal is back to the Prepositive denitrification section of " equalizing tank ";
3) preoxidation precipitation; Water after biologic active carbon filtration enters " oxidization and sedimentation basin ", adds the KMnO of oxygenant 1.0-mg/L
4or 1.0mg/L permanganate composite chemical carries out preoxidation, and the inorganic polymer flocculant-polymerize aluminum chloride adding 20/L carries out flocculation sediment to the particle in water, removes precipitable particle, simultaneously chemical dephosphorization, and the mud discharging of generation is to sludge sump;
4) micro flocculating filter, pumped in " micro flocculating filter pond " by the water after preoxidation precipitates by lift pump, add the polymerize aluminum chloride of 20mg/L before pumping into, carry out dosage adjustment according to water inlet suspension content, high-speed mixing is carried out by " having the purifier of pressure-bearing type stepless speed changing vortex reactor " in " micro flocculating filter pond ", baffle plate is set in the exit of this purifier to change the direction of a stream of water, the larger alumen ustum just formed is smashed, tiny flocculation particle enters the filtering layer top area in micro flocculating filter pond, and in filtering layer space, form the active reticulated structure of band, tiny flocculation particle is made to have more contact area, under the condition of height collision probability, secondary carries out abundant contact reacts, generate the filtered tiny flocculation particle that volume is tiny and closely knit, in the filtering layer be attracted under unbalance state, the mud produced regularly blow down to sludge sump through recoil,
5) disinfect; Water after micro flocculating filter enters " sterilization pool ", carries out sterilization and disinfection by adding 10/L sodium hypochlorite, guarantees that water quality reaches the requirement of GB/T18920-2002 " municipal middle water regeneration-urban reclaimed water water quality ", gets final product reuse.
A kind of purifier having pressure-bearing type stepless speed changing vortex reactor that described " having the purifier of pressure-bearing type stepless speed changing vortex reactor " is announced for CN1072188, belongs to prior art.
Embodiment two: see Fig. 1, described a kind of Treated sewage reusing treatment process, comprises the following steps:
1) the regulating water quality water yield; Sewage work is reached in GB18918-2002 " cities and towns sewerage disposing pollutant emission standard " and required that the secondary treatment yielding water of one-level B standard is from as former water, flow into " pump well " from outlet canal, then introduce " equalizing tank " regulating water quality, the water yield carry out denitrifying biological treatment by submersible sewage pump; In " equalizing tank ", place spherical fixing filler cultivate a large amount of facultative cenobiums, form the Prepositive denitrification section of biological treatment, carry out denitrogenation;
2) biologic active carbon filtration; By submersible sewage pump, the water of " equalizing tank " is introduced in " biologic active carbon filtration pond ", utilize gac for bio-carrier, cultivate the aerobic bacterial classification adapted, form aerobic nitration section and carry out nitration treatment, remove Organic substance in water simultaneously; Oxygen supply adopts rotary blower blast aeration; In addition, the water section of organics removal is back to the Prepositive denitrification section of " equalizing tank ";
3) preoxidation precipitation; Water after biologic active carbon filtration enters " oxidization and sedimentation basin ", adds the KMnO of oxygenant 2-mg/L
4or 2mg/L permanganate composite chemical carries out preoxidation, and the inorganic polymer flocculant-polymerized ferric-aluminum chloride adding 25mg/L carries out flocculation sediment to the particle in water, removes precipitable particle, simultaneously chemical dephosphorization, and the mud discharging of generation is to sludge sump;
4) micro flocculating filter; Pumped in " micro flocculating filter pond " by the water after preoxidation precipitates by lift pump; Add the polymerize aluminum chloride of 25mg/L before pumping into, carry out dosage adjustment according to water inlet suspension content;
5) disinfect; Water after micro flocculating filter enters " sterilization pool ", carries out sterilization and disinfection by adding 13mg/L sodium hypochlorite, guarantees that water quality reaches the requirement of GB/T18920-2002 " municipal middle water regeneration-urban reclaimed water water quality ", gets final product reuse.All the other are identical with enforcement one.
Embodiment three: see Fig. 1, described a kind of Treated sewage reusing treatment process, comprises the following steps:
1) the regulating water quality water yield; Sewage work is reached in GB18918-2002 " cities and towns sewerage disposing pollutant emission standard " and required that the secondary treatment yielding water of one-level B standard is from as former water, flow into " pump well " from outlet canal, then introduce " equalizing tank " regulating water quality, the water yield carry out denitrifying biological treatment by submersible sewage pump; In " equalizing tank ", place spherical fixing filler cultivate a large amount of facultative cenobiums, form the Prepositive denitrification section of biological treatment, carry out denitrogenation;
2) biologic active carbon filtration; By submersible sewage pump, the water of " equalizing tank " is introduced in " biologic active carbon filtration pond ", utilize gac for bio-carrier, cultivate the aerobic bacterial classification adapted, form aerobic nitration section and carry out nitration treatment, remove Organic substance in water simultaneously; Oxygen supply adopts rotary blower blast aeration; In addition, the water section of organics removal is back to the Prepositive denitrification section of " equalizing tank ";
3) preoxidation precipitation; Water after biologic active carbon filtration enters " oxidization and sedimentation basin ", adds the KMnO of oxygenant 2.5mg/L
4or 2.5mg/L permanganate composite chemical carries out preoxidation, and the inorganic polymer flocculant-polymerize aluminum chloride adding 30mg/L carries out flocculation sediment to the particle in water, removes precipitable particle, simultaneously chemical dephosphorization, and the mud discharging of generation is to sludge sump;
4) micro flocculating filter; Pumped in " micro flocculating filter pond " by the water after preoxidation precipitates by lift pump; Add the polymerize aluminum chloride of 30mg/L before pumping into, carry out dosage adjustment according to water inlet suspension content;
5) disinfect; Water after micro flocculating filter enters " sterilization pool ", carries out sterilization and disinfection by adding 15mg/L sodium hypochlorite, guarantees that water quality reaches the requirement of GB/T18920-2002 " municipal middle water regeneration-urban reclaimed water water quality ", gets final product reuse.All the other are identical with embodiment.
The detected result of above-mentioned three embodiments to the water quality of Treated sewage reusing treating processes sees the following form:
BOD in table
5(BiochemicalOxygenDemand) be that the dissolved oxygen content that a kind of microbial metabolism effect consumes carrys out secondary indication water body by an important indicator of Organic pollutants degree.
GB/T18920-2002 " municipal middle water regeneration-urban reclaimed water water quality " requires to see the following form:
| Water-quality guideline (mg/L) | BOD 5 | Dissolved oxygen | NH 3-N | Turbidity | Colourity |
| Recycle water standard | 10 | 1 | 10 | 5 | 30 |
In after process of the present invention, water all reaches the requirement reaching GB/T18920-2002 " municipal middle water regeneration-urban reclaimed water water quality ", can be used for road-cleaning, urban afforestation, vehicle wash etc.
Claims (3)
1. a Treated sewage reusing treatment process, comprises the following steps:
1) the regulating water quality water yield; Sewage work is reached in GB18918-2002 " cities and towns sewerage disposing pollutant emission standard " and required that the secondary treatment yielding water of one-level B standard is from as former water, flow into " pump well " from outlet canal, then introduce " equalizing tank " regulating water quality, the water yield carry out denitrifying biological treatment by submersible sewage pump; In " equalizing tank ", place spherical fixing filler cultivate a large amount of facultative cenobiums, form the Prepositive denitrification section of biological treatment, carry out denitrogenation;
2) biologic active carbon filtration; By submersible sewage pump, the water of " equalizing tank " is introduced in " biologic active carbon filtration pond ", utilize gac for bio-carrier, cultivate the aerobic bacterial classification adapted, form aerobic nitration section and carry out nitration treatment, remove Organic substance in water simultaneously; Oxygen supply adopts rotary blower blast aeration; In addition, the water section of organics removal is back to the Prepositive denitrification section of " equalizing tank ";
3) preoxidation precipitation; Water after biologic active carbon filtration enters " oxidization and sedimentation basin ", adds the KMnO of oxygenant 1.0-2.5mg/L
4or 1.0-2.5mg/L permanganate composite chemical carries out preoxidation, and the inorganic polymer flocculant adding 20-30mg/L carries out flocculation sediment to the particle in water, removes precipitable particle, simultaneously chemical dephosphorization, and the mud discharging of generation is to sludge sump;
4) micro flocculating filter, pumped in " micro flocculating filter pond " by the water after preoxidation precipitates by lift pump, add the polymerize aluminum chloride of 20-30mg/L before pumping into, carry out dosage adjustment according to water inlet suspension content, high-speed mixing is carried out by " having the purifier of pressure-bearing type stepless speed changing vortex reactor " in " micro flocculating filter pond ", baffle plate is set in the exit of this purifier to change the direction of a stream of water, the larger alumen ustum just formed is smashed, tiny flocculation particle enters the filtering layer top area in micro flocculating filter pond, and in filtering layer space, form the active reticulated structure of band, tiny flocculation particle is made to have more contact area, under the condition of height collision probability, secondary carries out abundant contact reacts, generate the filtered tiny flocculation particle that volume is tiny and closely knit, in the filtering layer be attracted under unbalance state, the mud produced regularly blow down to sludge sump through recoil,
5) disinfect; Water after micro flocculating filter enters " sterilization pool ", carries out sterilization and disinfection by adding 10-15mg/L sodium hypochlorite, guarantees that water quality reaches the requirement of GB/T18920-2002 " municipal middle water regeneration-urban reclaimed water water quality ", gets final product reuse.
2. Treated sewage reusing treatment process according to claim 1, is characterized in that: a kind of purifier having pressure-bearing type stepless speed changing vortex reactor that described " having the purifier of pressure-bearing type stepless speed changing vortex reactor " is announced for CN1072188.
3. Treated sewage reusing treatment process according to claim 1, is characterized in that: described inorganic polymer flocculant is polymerize aluminum chloride, or polymerized ferric-aluminum chloride.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106007064A (en) * | 2016-06-24 | 2016-10-12 | 北京金泽环境能源技术研究有限公司 | Pretreatment method of membrane water purification process |
| CN112520955A (en) * | 2020-12-30 | 2021-03-19 | 魏一明 | Reclaimed water recycling treatment method for improving filtering effect |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1175556A (en) * | 1996-05-02 | 1998-03-11 | 韩国科学技术研究院 | Facilities for treating waste water on large scale |
| CN1433976A (en) * | 2002-01-25 | 2003-08-06 | 中国石油天然气股份有限公司 | Regeneration process technology for sewage in refinery |
| CN101786764A (en) * | 2010-01-29 | 2010-07-28 | 华南理工大学 | Reclaimed water recovery treatment method and device |
| CN104108824A (en) * | 2013-04-18 | 2014-10-22 | 上海万森水处理有限公司 | Reuse treatment method of reclaimed water |
-
2015
- 2015-08-13 CN CN201510497070.7A patent/CN105084662B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1175556A (en) * | 1996-05-02 | 1998-03-11 | 韩国科学技术研究院 | Facilities for treating waste water on large scale |
| CN1433976A (en) * | 2002-01-25 | 2003-08-06 | 中国石油天然气股份有限公司 | Regeneration process technology for sewage in refinery |
| CN101786764A (en) * | 2010-01-29 | 2010-07-28 | 华南理工大学 | Reclaimed water recovery treatment method and device |
| CN104108824A (en) * | 2013-04-18 | 2014-10-22 | 上海万森水处理有限公司 | Reuse treatment method of reclaimed water |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106007064A (en) * | 2016-06-24 | 2016-10-12 | 北京金泽环境能源技术研究有限公司 | Pretreatment method of membrane water purification process |
| CN112520955A (en) * | 2020-12-30 | 2021-03-19 | 魏一明 | Reclaimed water recycling treatment method for improving filtering effect |
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| CN105084662B (en) | 2017-08-25 |
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