CN105330095A - Regeneration reuse method for phosphorization wastewater - Google Patents
Regeneration reuse method for phosphorization wastewater Download PDFInfo
- Publication number
- CN105330095A CN105330095A CN201510685082.2A CN201510685082A CN105330095A CN 105330095 A CN105330095 A CN 105330095A CN 201510685082 A CN201510685082 A CN 201510685082A CN 105330095 A CN105330095 A CN 105330095A
- Authority
- CN
- China
- Prior art keywords
- water
- hrt
- reuse
- waste water
- gac
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
A disclosed regeneration reuse method for phosphorization wastewater comprises the following steps: setting a reuse water quality requirement different from the standard-reached discharge requirement, employing a processing technology of successively performing first-stage coagulation deposition, demulsification and air floatation, ultrafiltration, biological purification and reuse, and reusing the processed phosphorization wastewater in various stages of cleaning operations for phosphorization surface processing. The beneficial effects comprise that regeneration reuse of the production-line phosphorization wastewater is realized after the technically-improved method is performed, the water quality can stably reach the reuse water quality requirement, and phosphorization quality is stable.
Description
Technical field
The present invention relates to a kind of method for reclaiming of phosphorized waste water, belong to the environment-protective water processing technology field of waste water.
Background technology
Eutrophication is the outstanding problem of current China water environment pollution, exchanges limited lake and reservoir etc. especially for water body, easily causes the excessive multiplication of algae to grow, break out wawter bloom after the nutritive salt enrichments such as nitrogen phosphorus, jeopardizes Aquatic Ecosystem 2 and to unify water supply security.It is generally acknowledged that phosphorus is the restricted factor of algal bloom, control phosphorus seems particularly crucial and important in eutrophication control.
Phosphorus is the principal pollutant in phosphorized waste water, with phosphate radical (PO
4 3-) be that main active phosphorus form exists, concentration can reach tens mg/L, for alleviating phosphorized waste water discharge to the threat of water surrounding and Ecology, " integrated wastewater discharge standard (GB8978-1996) " sets the primary standard (see table 1) of 0.5mg/L.
Table 1 integrated wastewater discharge standard (GB8978-1996)
Typical phosphorization treatment process is: degreasing, cleaning, pickling, cleaning, phosphatization, cleaning, subsequent disposal, phosphorized waste water forms primarily of two portions, a part is the useless tank liquor of the operations such as degreasing, pickling and phosphatization, and water yield small concentration is high, in intermittently discharged feature; Another part is the operation Cleaning Wastewater at different levels subsequently such as degreasing, pickling and phosphatization, and concentration low wash water is large, in continuous blow-down feature.Traditional phosphorized waste water process is attached most importance to dephosphorization, and adopt two-stage coagulating sedimentation to be main technique, pH is adjusted to 8 ~ 9 by adding alkali by first order reaction, with addition of flocculation agent and coagulant aids, removes the heavy metals such as Zn, Fe; Two-stage reaction continues to add alkali, and pH is adjusted to 11 ~ 12, and by flocculation agent and coagulant aids, removes phosphate radical, and then pH is recalled to the permission discharge scope of 6 ~ 9 by acid adding.This technique pH regulates and controls complexity, and added amount of chemical is large, and sludge output is large, and can not meet waste water and to become the requirement of zero release.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method for reclaiming of phosphorized waste water.
The present invention is achieved through the following technical solutions.
A method for reclaiming for phosphorized waste water, step comprises:
Setting and the reuse water quality requirement of qualified discharge differentiation, adopt the treatment process of one-level coagulating sedimentation according to the order of sequence, breakdown of emulsion air supporting, ultrafiltration, ecological purification, reuse, be back to phosphatization surface-treated matting at different levels to phosphorized waste water after processing.
Further, concrete steps comprise:
(1) Cleaning Wastewater enters the first equalizing tank, degreasing, pickling, the useless tank liquor of phosphatization enters the second equalizing tank;
(2) water body in the first equalizing tank is carried out one-level coagulation, one-level coagulation adopts three lattice ponds, the first lattice neutralization, aeration+NaOH, pH is adjusted to 8 ~ 9, HRT=20min, the second lattice flocculation, diatomite+PAC, HRT=5min, the 3rd lattice help solidifying ,+PAM, HRT=5min;
(3) precipitate, adopt tube settling, HRT=0.5h;
(4) carry out employing Production Wastewater By Combined Acidification And Demulsification, HCl+PAM, pH is down to 5.5 ~ 6.0, pH readjustment is no longer done in air supporting water outlet, HRT=40 ~ 60min;
(5) carry out gac sand filtration, gac sand filtration, by quartz sand and gac double-layer filter material, is equipped with quartz sand back flushing and gac steam solution adsorption device;
(6) carry out ultrafiltration, the molecular weight cut off 10000Dal of ultrafiltration, be equipped with back-purge system;
(7) last water body enters ecological clean water basin, HRT=24h, plants acid resistance waterplant in ecological clean water basin.
Further, the Production Wastewater By Combined Acidification And Demulsification of (4) makes gas-solid ratio α=0.04 ~ 0.05.
Further, the wash-down water of the gac sand filtration of (5) sends into the first equalizing tank.
The discharge of phosphorized waste water and reuse differing greatly to water quality requirement, the core of qualified discharge removes PO
4 3-, reuse then focuses on to remove affects the iron of phosphatization quality, petroleum-type and SS, PO
4 3-negative impact be there is no to phosphating process, so there is no necessary special removal.In other words, the Focal point and difficult point of qualified discharge is not then problem for reuse.Reuse water-quality guideline is selected as follows:
(1) PO
4 3-be the important reason of body eutrophication, be the Focal point and difficult point of phosphorized waste water qualified discharge, but negative impact be there is no to phosphating process, be conducive to the acidity of supplementary phosphatization tank liquor on the contrary, therefore not as reuse water-quality guideline;
(2) iron scale etc. of the oil in water emulsion of degreasing and tensio-active agent, rust cleaning wash-out, all very easily adheres to workpiece surface, thus suppresses phosphorization filming, so using petroleum-type, SS and tensio-active agent (LAS) etc. as 3 reuse water-quality guideline;
(3) accumulation of iron ion (Fe) has influence on phosphatization quality, pretends as another reuse water-quality guideline; Zine ion (Zn) there is no negative impact to phospholeum metallization processes, and also can synchronously be removed in the process of one-level coagulating sedimentation removal Fe, therefore is not re-used as reuse water matter index;
(4) COD mainly comes self-emulsifiable oil and tensio-active agent, therefore no longer single-row;
(5) owing to adopting acidification and the air flotation technique, water outlet pH will be in the acidic levels of 5 ~ 6, adhere to the alkaline matter that workpiece surface suppresses phosphorization filming in being conducive to and after degreasing process, thus not using pH as regeneration water-quality guideline.
Table 2 phosphorized waste water reuse water quality requirement (mg/L)
According to phosphorized waste water reuse water quality requirement, technological line of the present invention is shown in Fig. 1, adopt the technique of one-level coagulating sedimentation → breakdown of emulsion air supporting → ultrafiltration → ecological purification, wherein synchronously remove Fe and Zn by coagulating sedimentation, SS simultaneously based on iron scale is effectively removed, and part phosphate radical is also removed in addition; Oil in water emulsion, suspended metal salt colloid and tensio-active agent is synchronously removed by breakdown of emulsion air supporting; By ultrafiltration, coordinate with preposition gac sand filtration, improve the index such as petroleum-type, SS, LAS further.
After technological transformation is implemented, achieve the regeneration of production line phosphorized waste water, water quality Absorbable organic halogens reaches the reuse water quality requirement listed by table 2, phosphatization steady quality.
Beneficial effect of the present invention:
(1) reuse water is without the need to removing phosphate radical specially, and therefore the present invention only adopts one-level coagulation, and emphasis removes Fe, without the need to repeatedly regulating pH, adding of agent and sludge output all can decline to a great extent, and save running cost, improve technology stability, production operation is easier simultaneously.
(2) sludge output of traditional technology two-stage coagulating sedimentation is large, and need adopt horizontal sedimentation tank, the present invention adopts one-level coagulation, and sludge output declines to a great extent, and can adopt tube settler, cuts down the engineering scale of construction, saves cost.
(3) in traditional technology, a large amount of suspended state flco is formed after phosphorized waste water coagulation, sedimentation function is not good, hydraulic detention time generally needs more than 2h, and the present invention passes through with addition of diatomite, for suspended state flco provides condensation nucleus, improve sedimentation function, hydraulic detention time can be reduced to about 0.5h, significantly cuts down the engineering scale of construction of precipitation operation, saves cost.
(3) after traditional air supporting operation adopts Production Wastewater By Combined Acidification And Demulsification, pH is down to 5.5 ~ 6.0, air supporting water outlet need add alkali and pH is recalled to 6 ~ 9, but adhere to the alkaline matter of workpiece surface during reuse slant acidity water quality is conducive to and after degreasing process, therefore air supporting water outlet of the present invention is without the need to doing pH readjustment again, saves and builds and running cost.
(4) the present invention plants acid resistance waterplant in outlet sump, by adding up of other indexs beyond biomagnification buffering reuse water quality requirement, beautifies the environment simultaneously.
Accompanying drawing explanation
Fig. 1 is the route schematic diagram of the method for reclaiming of phosphorized waste water of the present invention.
Embodiment
According to drawings and embodiments the present invention is described in further detail below.
With reference to Fig. 1, the method for reclaiming of phosphorized waste water, step comprises: (1) Cleaning Wastewater directly enters the first equalizing tank, and the first equalizing tank doubles as water entering accident pond, useful volume 100m3; The useless tank liquors such as degreasing, pickling, phosphatization enter the second equalizing tank, and entering the first equalizing tank by 1m3/d after adjustment handles together, the second equalizing tank useful volume 6m3.
(2) one-level coagulation adopts three lattice ponds.First lattice neutralization, aeration+NaOH, is adjusted to 8 ~ 9, HRT=20min by pH.Second lattice flocculation, diatomite+PAC, wherein for improving metal-salt coagulating sedimentation performance, by reaching the effect of ballasted flocculation, HRT=5min with addition of diatomite.3rd lattice help solidifying ,+PAM, HRT=5min.
(3) tube settling is adopted, HRT=0.5h.
(4) adopt Production Wastewater By Combined Acidification And Demulsification, HCl+PAM, is down to 5.5 ~ 6.0 by pH, and pH readjustment is no longer done in air supporting water outlet.HRT＝40～60min。Gas-solid ratio α=0.04 ~ 0.05.
(5) the built-in quartz sand of gac sand filtration and gac double-layer filter material, is equipped with quartz sand back flushing and gac steam solution adsorption device.
(6) ultrafiltration molecular weight cut off ~ 10000Dal, is equipped with back-purge system.
(7) clean water basin useful volume 100m3, HRT=24h.Plant acid resistance waterplant.
And this step of sludge condensation is set, the mud that its collecting precipitation step produces, and the supernatant liquor in it is sent into the first equalizing tank, mud is transported outward.
After technological transformation is implemented, achieve the regeneration of production line phosphorized waste water, water quality Absorbable organic halogens reaches the reuse water quality requirement listed by table 2, phosphatization steady quality.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to allow the personage being familiar with this art can understand content of the present invention and be implemented, can not limit the scope of the invention with this.All equivalences done according to spirit of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (4)
1. a method for reclaiming for phosphorized waste water, is characterized in that, step comprises:
Setting and the reuse water quality requirement of qualified discharge differentiation, adopt the treatment process of one-level coagulating sedimentation according to the order of sequence, breakdown of emulsion air supporting, ultrafiltration, ecological purification, reuse, be back to phosphatization surface-treated matting at different levels to phosphorized waste water after processing.
2. the method for reclaiming of phosphorized waste water according to claim 1, is characterized in that, concrete steps comprise:
(1) Cleaning Wastewater enters the first equalizing tank, degreasing, pickling, the useless tank liquor of phosphatization enters the second equalizing tank;
(2) water body in the first equalizing tank is carried out one-level coagulation, one-level coagulation adopts three lattice ponds, the first lattice neutralization, aeration+NaOH, pH is adjusted to 8 ~ 9, HRT=20min, the second lattice flocculation, diatomite+PAC, HRT=5min, the 3rd lattice help solidifying ,+PAM, HRT=5min;
(3) precipitate, adopt tube settling, HRT=0.5h;
(4) carry out employing Production Wastewater By Combined Acidification And Demulsification, HCl+PAM, pH is down to 5.5 ~ 6.0, pH readjustment is no longer done in air supporting water outlet, HRT=40 ~ 60min;
(5) carry out gac sand filtration, gac sand filtration, by quartz sand and gac double-layer filter material, is equipped with quartz sand back flushing and gac steam solution adsorption device;
(6) carry out ultrafiltration, the molecular weight cut off 10000Dal of ultrafiltration, be equipped with back-purge system;
(7) last water body enters ecological clean water basin, HRT=24h, plants acid resistance waterplant in ecological clean water basin.
3. the method for reclaiming of phosphorized waste water according to claim 1, is characterized in that, the Production Wastewater By Combined Acidification And Demulsification of (4) makes gas-solid ratio α=0.04 ~ 0.05.
4. the method for reclaiming of phosphorized waste water according to claim 1, is characterized in that, the wash-down water of the gac sand filtration of (5) sends into the first equalizing tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510685082.2A CN105330095A (en) | 2015-10-16 | 2015-10-16 | Regeneration reuse method for phosphorization wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510685082.2A CN105330095A (en) | 2015-10-16 | 2015-10-16 | Regeneration reuse method for phosphorization wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105330095A true CN105330095A (en) | 2016-02-17 |
Family
ID=55280901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510685082.2A Pending CN105330095A (en) | 2015-10-16 | 2015-10-16 | Regeneration reuse method for phosphorization wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105330095A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106554107A (en) * | 2016-05-17 | 2017-04-05 | 浙江吉利汽车有限公司 | A kind of phosphorized waste water handling process |
| CN109694143A (en) * | 2017-10-23 | 2019-04-30 | 宜兴市联丰化工机械有限公司 | A kind of end socket production wastewater treatment process |
| CN114436481A (en) * | 2022-04-02 | 2022-05-06 | 山东凤鸣桓宇环保有限公司 | Resource recovery process for phosphating wastewater |
| CN114477665A (en) * | 2022-04-14 | 2022-05-13 | 山东凤鸣桓宇环保有限公司 | Coating wastewater recycling treatment process |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201065376Y (en) * | 2007-06-12 | 2008-05-28 | 江苏金山环保工程有限公司 | Advanced treatment device for hull painting waste water |
| CN201338975Y (en) * | 2008-12-21 | 2009-11-04 | 陈业钢 | Classification treatment combination device of industrial wastewater reclamation and reuse |
| CN202038927U (en) * | 2011-03-14 | 2011-11-16 | 杭州益宇环保科技有限公司 | Coating wastewater treatment and reclaimed water recycling system |
| CN102642961A (en) * | 2012-05-11 | 2012-08-22 | 同济大学 | Reuse treatment method for industrial wastewater from refrigerator compressor factory |
| CN103739165A (en) * | 2014-01-08 | 2014-04-23 | 新疆德安环保科技有限公司 | Recycling treatment method for automobile coating wastewater |
| WO2014119990A3 (en) * | 2013-02-01 | 2014-11-27 | Centro De Investigación En Alimentación Y Desarrollo, A.C. | Method and system for the integral treatment of wastewater from the maize industry |
| CN104773875A (en) * | 2015-04-08 | 2015-07-15 | 上海依科绿色工程有限公司 | Deep treatment method of automobile manufacturing plant up-to-standard discharged wastewater |
| CN104773843A (en) * | 2015-04-08 | 2015-07-15 | 上海依科绿色工程有限公司 | Method for applying reclaimed water obtained after deep treatment of up-to-standard discharged wastewater of automobile factory to cooling water replenishing |
| CN104876392A (en) * | 2015-05-11 | 2015-09-02 | 苏州瑞钰特自动化科技有限公司 | Coating wastewater treatment process |
-
2015
- 2015-10-16 CN CN201510685082.2A patent/CN105330095A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201065376Y (en) * | 2007-06-12 | 2008-05-28 | 江苏金山环保工程有限公司 | Advanced treatment device for hull painting waste water |
| CN201338975Y (en) * | 2008-12-21 | 2009-11-04 | 陈业钢 | Classification treatment combination device of industrial wastewater reclamation and reuse |
| CN202038927U (en) * | 2011-03-14 | 2011-11-16 | 杭州益宇环保科技有限公司 | Coating wastewater treatment and reclaimed water recycling system |
| CN102642961A (en) * | 2012-05-11 | 2012-08-22 | 同济大学 | Reuse treatment method for industrial wastewater from refrigerator compressor factory |
| WO2014119990A3 (en) * | 2013-02-01 | 2014-11-27 | Centro De Investigación En Alimentación Y Desarrollo, A.C. | Method and system for the integral treatment of wastewater from the maize industry |
| CN103739165A (en) * | 2014-01-08 | 2014-04-23 | 新疆德安环保科技有限公司 | Recycling treatment method for automobile coating wastewater |
| CN104773875A (en) * | 2015-04-08 | 2015-07-15 | 上海依科绿色工程有限公司 | Deep treatment method of automobile manufacturing plant up-to-standard discharged wastewater |
| CN104773843A (en) * | 2015-04-08 | 2015-07-15 | 上海依科绿色工程有限公司 | Method for applying reclaimed water obtained after deep treatment of up-to-standard discharged wastewater of automobile factory to cooling water replenishing |
| CN104876392A (en) * | 2015-05-11 | 2015-09-02 | 苏州瑞钰特自动化科技有限公司 | Coating wastewater treatment process |
Non-Patent Citations (1)
| Title |
|---|
| 叶细首等: "酸洗磷化废水的处理与资源化回收", 《能源环境保护》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106554107A (en) * | 2016-05-17 | 2017-04-05 | 浙江吉利汽车有限公司 | A kind of phosphorized waste water handling process |
| CN109694143A (en) * | 2017-10-23 | 2019-04-30 | 宜兴市联丰化工机械有限公司 | A kind of end socket production wastewater treatment process |
| CN114436481A (en) * | 2022-04-02 | 2022-05-06 | 山东凤鸣桓宇环保有限公司 | Resource recovery process for phosphating wastewater |
| CN114477665A (en) * | 2022-04-14 | 2022-05-13 | 山东凤鸣桓宇环保有限公司 | Coating wastewater recycling treatment process |
| CN114477665B (en) * | 2022-04-14 | 2022-07-22 | 山东凤鸣桓宇环保有限公司 | Coating wastewater recycling treatment process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204939131U (en) | Tube type filter membrance wastewater treatment and waste water reuse system | |
| CN102603097B (en) | Advanced treatment and recycling process for wastewater containing heavy metal ions | |
| CN101781039B (en) | Technology for deeply processing coking wastewater through combining catalytic oxidation method and membrane separation technique | |
| CN100450592C (en) | Metal smelting factory sewage reclaiming method based on membrane filtering technique | |
| CN103342429B (en) | Method for recovering, treating and recycling valuable metals in waste acid | |
| CN105439326A (en) | Treatment method of chemical nickel-plating wastewater | |
| CN105330095A (en) | Regeneration reuse method for phosphorization wastewater | |
| CN103739165A (en) | Recycling treatment method for automobile coating wastewater | |
| CN106277590A (en) | A kind of oxidoreduction microbial method processes the method for dangerous waste disposal comprehensive wastewater | |
| CN107640848A (en) | A kind of method of the processing of flushing waste water containing chromium | |
| CN106430754A (en) | Fast treating method for copper mine waste water | |
| CN210367243U (en) | Copper mine ore dressing wastewater treatment recycling device | |
| CN210656480U (en) | Adopt washing cigarette waste water retrieval and utilization processing apparatus of DTRO device | |
| CN204079640U (en) | Acid-washing stainless steel line generalization Waste Water Treatment | |
| CN211847562U (en) | Cutting fluid effluent treatment plant | |
| CN201942582U (en) | Metallurgy waste water treatment device | |
| CN210559895U (en) | System for zero release of power plant's whole factory waste water and utilization | |
| CN210764746U (en) | Adopt washing cigarette waste water retrieval and utilization processing apparatus of STRO device | |
| CN210595643U (en) | System for zero release of power plant's whole factory waste water and resource utilization | |
| CN103496807A (en) | Industrial wastewater advanced treatment and recycling system | |
| CN208883535U (en) | A kind of recyclable device of P containing sludge inhibitor | |
| CN113045093A (en) | Treatment method of graphite product production wastewater | |
| CN210030257U (en) | Stainless steel electrolytic polishing effluent treatment plant | |
| CN208151101U (en) | A kind of board wastewater recycling system | |
| CN102826677A (en) | Full-cycling technology for vanadium smelting wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160217 |
|
| RJ01 | Rejection of invention patent application after publication |