CN104291482A - Treatment method for wastewater containing high-concentration phosphite - Google Patents
Treatment method for wastewater containing high-concentration phosphite Download PDFInfo
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- CN104291482A CN104291482A CN201410478530.7A CN201410478530A CN104291482A CN 104291482 A CN104291482 A CN 104291482A CN 201410478530 A CN201410478530 A CN 201410478530A CN 104291482 A CN104291482 A CN 104291482A
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- water
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- order reaction
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000002351 wastewater Substances 0.000 title claims abstract description 25
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 title claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- 238000005189 flocculation Methods 0.000 claims abstract description 20
- 230000016615 flocculation Effects 0.000 claims abstract description 20
- 239000000126 substance Substances 0.000 claims abstract description 20
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000011574 phosphorus Substances 0.000 claims abstract description 19
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002244 precipitate Substances 0.000 claims abstract description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical group [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 5
- 239000001110 calcium chloride Substances 0.000 claims abstract description 5
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000001556 precipitation Methods 0.000 claims description 16
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 3
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000011259 mixed solution Substances 0.000 claims description 2
- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 239000000843 powder Substances 0.000 abstract description 4
- 229910019142 PO4 Inorganic materials 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract description 2
- 239000010452 phosphate Substances 0.000 abstract description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 2
- 239000012716 precipitator Substances 0.000 abstract 2
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 1
- 239000000920 calcium hydroxide Substances 0.000 abstract 1
- 235000011116 calcium hydroxide Nutrition 0.000 abstract 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 1
- 239000000292 calcium oxide Substances 0.000 abstract 1
- 235000012255 calcium oxide Nutrition 0.000 abstract 1
- 239000010440 gypsum Substances 0.000 abstract 1
- 229910052602 gypsum Inorganic materials 0.000 abstract 1
- 238000010517 secondary reaction Methods 0.000 abstract 1
- 239000010802 sludge Substances 0.000 description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000001506 calcium phosphate Substances 0.000 description 3
- 229910000389 calcium phosphate Inorganic materials 0.000 description 3
- 235000011010 calcium phosphates Nutrition 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 244000052616 bacterial pathogen Species 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 235000011007 phosphoric acid Nutrition 0.000 description 2
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000012028 Fenton's reagent Substances 0.000 description 1
- 229910017112 Fe—C Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- -1 iron ion Chemical class 0.000 description 1
- 229910000398 iron phosphate Inorganic materials 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical group [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003987 organophosphate pesticide Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to a treatment method for wastewater containing high-concentration phosphate. The treatment method is characterized in the total phosphorus of effluent is less than 1mg/L by adopting a three-level chemical phosphorus removal process. The treatment method specifically comprises the following steps: adding excessive precipitator into wastewater in a primary reaction pond and adding a settling agent and PAM into a primary flocculation basin to settle; after effluent enters into a secondary reaction pond, putting ozone into the pond to generate undissolved substances and adding the settling agent and PAM into a mixed liquid in a secondary flocculation basin to settle; after effluent enters into a third flocculation basin, adding PAC and PAM for flocculent precipitate so as to remove residual small particle undissolved substances in wastewater so as to further reduce the total phosphorus content of the wastewater; and finally, adjusting the pH value or removing hard substances from the effluent according to demand, wherein the precipitator is calcium chloride and the settling agent is one or more of ground calcium carbonate, quick lime/slaked lime and gypsum powder.
Description
Technical field
The invention belongs to field of industrial waste water treatment.Relate to a kind for the treatment of process containing high density phosphite waste water.
Background technology
Sodium hypophosphite can carry out chemical nickel plating, copper facing and copper powder as reductive agent to be prepared, and is widely used in electronics, machinery, oil, chemical industry, the industries such as medicine, phosphite containing high density in the waste water produced and a small amount of phosphoric acid salt, its content is considerably beyond discharge of wastewater requirement.Patents document about phosphite wastewater treatment is less, but for the waste water containing reductibility phosphorus, adopts the patent documentation that method for oxidation is translated into positive phosphorus, recycling chemical method precipitation is removed relatively many.
Chinese invention patent high P content waste water treatment process (application number 201110424246.8), propose to adopt iron(ic) chloride and/or ferric sulfate as oxygenant, be ortho-phosphoric acid root by reductibility phosphorus oxidation, ortho-phosphoric acid root generates with iron ion and precipitates dephosphorization, and applicable total phosphorus concentration is 26-163mg/L.
Chinese invention patent (application number 200810063021.2) discloses the ozone-enhanced electric coagulating/flocculating method for processing of phosphorus-containing wastewater, propose to adopt ozone oxidation to strengthen electricity flocculation and produce more ironic hydroxide flco, thus more effectively remove phosphate contaminants.
The treatment process (application number 201110383538.1) of a kind of phosphorus-containing wastewater of Chinese invention patent application, organophosphorus pesticide factory effluent for 500-10000mg/L is proposed, Fe-C micro electrolysis is adopted to carry out pre-treatment and Fenton reagent oxidation, transfer organophosphorus to orthophosphoric acid salt, then carry out flocculation sediment.
Process and the disposal of the chemical sludge produced are not considered in great majority research.With molysite be flocculation agent dephosphorization process produce chemical sludge contain a large amount of ironic hydroxides and tertiary iron phosphate, generally cannot reclaim, process as general solid waste; With lime be flocculation agent dephosphorization process produce chemical sludge main component be calcium phosphate powder, agriculture fertilizer is made in general reuse.
Summary of the invention
The object of this invention is to provide a kind for the treatment of process containing high density phosphite waste water, according to the difference of phosphorus containg substances, reclaim its chemical precipitation product selectively, and meet the emission request of waste water.
The present invention is a kind for the treatment of process containing high density phosphite waste water, it is characterized in that:
1) adopt three grades of chemical dephosphorization techniques, realize water outlet total phosphorus and be less than 1mg/L, its detailed process is as follows:
A) one-level dephosphorization: waste water first order reaction pond add add settling agent and PAM in excessive precipitation agent, one-level flocculation basin after precipitate;
B) secondary dephosphorization: first stage precipitation tank water outlet enters second order reaction pond, adds ozone in pond, produce insolubles, mixed solution precipitates after secondary flocculation basin adds settling agent and PAM;
C) three grades of dephosphorization: second-level settling pond water outlet enters three grades of flocculation basins, add PAC and PAM and carry out flocculation sediment, to remove small-particle insolubles residual in waste water, reduce total phosphorous in waste water further; Final outflow water is carried out pH value adjustment as requested or is processed except hard;
2) handled by is the factory effluent that acrylamide production equipment hypophosphite reduction method prepares copper catalyst containing high density phosphite waste water, and total phosphorous is 850 ~ 2100mg/L, and pH value is 12.5 ~ 14.0;
3) precipitation agent described in is calcium chloride, and settling agent is one or more in water-ground limestone, life/white lime, terra alba;
4) precipitation agent added in first order reaction pond in the mass ratio of Ca and total phosphorus in former water for 1:1 ~ 2:1;
5) in the ozone added in second order reaction pond and former water, the mass ratio of total phosphorus is 0.5:1 ~ 1.5:1;
6) settling agent added in I and II flocculation basin is respectively 0.02% ~ 0.1% in Ca and the mass ratio of total phosphorus in former water;
7) reaction times in first order reaction pond and second order reaction pond is 0.5 ~ 1.5h.
Compared with prior art, the present invention has following characteristics:
1) calcium chloride solubleness is large, good water solubility, adopts CaCl
2as precipitation agent, the chemical sludge water ratio of generation is low, and the quantity of slag is little; Adding of settling agent, improve the sedimentation function of mud, contribute to solid-liquid separation;
2) calcium chloride precipitation agent is only disposable in first order reaction pond excessively adds, and contributes to more orthophosphite in one-level dephosphorization process and is converted into Arizona bacilli precipitation and removes, greatly reduce the consumption of ozone in secondary dephosphorization process;
3) adopt ozone as oxygenant, oxidation efficiency is high, and in tail gas, ozone conversion is oxygen discharge, and clean environment firendly produces without additional contaminants;
4) adopt three grades of dephosphorization process, the classification taking back and process generating solid waste can be realized.The chemical sludge that one-level dephosphorization process produces, main component is Arizona bacilli, and the rust proof paint that can be used as high-efficiency environment friendly is recycled; The chemical sludge that secondary dephosphorization process produces, main component is calcium phosphate powder, can be used as chemical fertilizer and reclaims; The chemical sludge amount of three grades of dephosphorization process generations is minimum, and main component is calcium phosphate powder and polymerize aluminum chloride, can be used as general solid waste and carries out process disposal;
5) treatment effect is good, and total tp removal rate reaches more than 99.9%.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of a kind for the treatment of process containing high density phosphite waste water of the present invention.
1-first order reaction pond; 2-one-level flocculation basin; 3-first stage precipitation tank; 4-second order reaction pond; 5-secondary flocculation basin; 6-second-level settling pond; 7-tri-grades of flocculation basins; 8-tri-grades of settling tanks
Embodiment
Following embodiment is convenient to understand the present invention better, but does not limit the present invention.
Embodiment 1
Certain refinery company chemical method is produced acrylamide device and is adopted sodium hypophosphite reduction method to prepare copper catalyst, total phosphorous 850-2100mg/L in its factory effluent, and its Central Asia phosphorus accounts for 75% ~ 80% of total phosphorous; PH value is 12.5-14.0.Successively on-the-spot five batches of water intakings are tested.Test parameter and result are as table 1.
Table 1
Carry out X-ray diffraction and XRF Broad Spectrum Analysis of Infinitesimal respectively to the chemical sludge that one-level precipitation and two-stage precipitation produce, result shows, one-level is sedimentary mainly consists of CaHPO
3h
2o, two-stage precipitation owner will consist of Ca
9.8(PO
4)
6(OH)
1.92.
Claims (1)
1., containing a treatment process for high density phosphite waste water, it is characterized in that:
1) adopt three grades of chemical dephosphorization techniques, realize water outlet total phosphorus and be less than 1mg/L, its detailed process is as follows:
A) one-level dephosphorization: waste water first order reaction pond add add settling agent and PAM in excessive precipitation agent, one-level flocculation basin after precipitate;
B) secondary dephosphorization: first stage precipitation tank water outlet enters second order reaction pond, adds ozone in pond, produce insolubles, mixed solution precipitates after secondary flocculation basin adds settling agent and PAM;
C) three grades of dephosphorization: second-level settling pond water outlet enters three grades of flocculation basins, add PAC and PAM and carry out flocculation sediment, to remove small-particle insolubles residual in waste water, reduce total phosphorous in waste water further; Final outflow water is carried out pH value adjustment as requested or is processed except hard;
2) handled by is the factory effluent that acrylamide production equipment hypophosphite reduction method prepares copper catalyst containing high density phosphite waste water, and total phosphorous is 850 ~ 2100mg/L, and pH value is 12.5 ~ 14.0;
3) precipitation agent described in is calcium chloride, and settling agent is one or more in water-ground limestone, life/white lime, terra alba;
4) precipitation agent added in first order reaction pond in the mass ratio of Ca and total phosphorus in former water for 1:1 ~ 2:1;
5) in the ozone added in second order reaction pond and former water, the mass ratio of total phosphorus is 0.5:1 ~ 1.5:1;
6) settling agent added in I and II flocculation basin is respectively 0.02% ~ 0.1% in Ca and the mass ratio of total phosphorus in former water;
7) reaction times in first order reaction pond and second order reaction pond is 0.5 ~ 1.5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410478530.7A CN104291482B (en) | 2014-09-18 | 2014-09-18 | A kind for the treatment of process containing high density phosphite waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410478530.7A CN104291482B (en) | 2014-09-18 | 2014-09-18 | A kind for the treatment of process containing high density phosphite waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104291482A true CN104291482A (en) | 2015-01-21 |
| CN104291482B CN104291482B (en) | 2015-11-04 |
Family
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Family Applications (1)
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|---|---|---|---|
| CN201410478530.7A Active CN104291482B (en) | 2014-09-18 | 2014-09-18 | A kind for the treatment of process containing high density phosphite waste water |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254073A (en) * | 2015-11-05 | 2016-01-20 | 四川新能水处理工程有限公司 | System and implementation method for treating and recycling wastewater from phosphorus chemical industry |
| CN110015819A (en) * | 2019-05-20 | 2019-07-16 | 湖北三才堂化工科技有限公司 | A kind of waste water treatment process |
| CN110066046A (en) * | 2019-04-12 | 2019-07-30 | 南京华创环境技术研究院有限公司 | A kind of dephosphorization system and phosphorus removing method |
| CN111170527A (en) * | 2020-02-11 | 2020-05-19 | 中冶一局环境科技有限公司 | Treatment method of chemical nickel plating waste liquid |
| CN111644148A (en) * | 2020-06-10 | 2020-09-11 | 北京理工大学 | Preparation method of ultra-efficient sewage dephosphorization adsorbent |
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| CN102826640A (en) * | 2011-06-17 | 2012-12-19 | 中国石油化工股份有限公司 | Method for treating organic phosphorus production wastewater |
| CN103121772A (en) * | 2011-11-17 | 2013-05-29 | 浙江新安化工集团股份有限公司 | Method for treating phosphorus-containing waste water |
| CN103991987A (en) * | 2014-06-09 | 2014-08-20 | 北京碧水源环境工程有限公司 | Process for pre-treating high-concentration phosphorus-containing wastewater to remove total phosphorus (TP) and process system thereof |
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| CN105254073A (en) * | 2015-11-05 | 2016-01-20 | 四川新能水处理工程有限公司 | System and implementation method for treating and recycling wastewater from phosphorus chemical industry |
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| CN111170527A (en) * | 2020-02-11 | 2020-05-19 | 中冶一局环境科技有限公司 | Treatment method of chemical nickel plating waste liquid |
| CN111644148A (en) * | 2020-06-10 | 2020-09-11 | 北京理工大学 | Preparation method of ultra-efficient sewage dephosphorization adsorbent |
| CN111644148B (en) * | 2020-06-10 | 2021-11-26 | 北京理工大学 | Preparation method of ultra-efficient sewage dephosphorization adsorbent |
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