CN103449678A - Agricultural equipment coating wastewater treatment technology - Google Patents
Agricultural equipment coating wastewater treatment technology Download PDFInfo
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- CN103449678A CN103449678A CN2013104144958A CN201310414495A CN103449678A CN 103449678 A CN103449678 A CN 103449678A CN 2013104144958 A CN2013104144958 A CN 2013104144958A CN 201310414495 A CN201310414495 A CN 201310414495A CN 103449678 A CN103449678 A CN 103449678A
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- 239000011248 coating agent Substances 0.000 title claims abstract description 17
- 238000000576 coating method Methods 0.000 title claims abstract description 17
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 15
- 239000002351 wastewater Substances 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 230000001112 coagulating effect Effects 0.000 claims abstract description 16
- 238000004062 sedimentation Methods 0.000 claims abstract description 16
- 239000010802 sludge Substances 0.000 claims abstract description 15
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 8
- 230000020477 pH reduction Effects 0.000 claims abstract description 8
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 8
- 238000005189 flocculation Methods 0.000 claims abstract description 6
- 239000004576 sand Substances 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract description 3
- 238000000926 separation method Methods 0.000 claims abstract description 3
- 239000002699 waste material Substances 0.000 claims description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 11
- 238000001556 precipitation Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 11
- 239000000701 coagulant Substances 0.000 claims description 8
- 238000005238 degreasing Methods 0.000 claims description 7
- 238000001962 electrophoresis Methods 0.000 claims description 7
- 238000009298 carbon filtering Methods 0.000 claims description 6
- 230000007062 hydrolysis Effects 0.000 claims description 5
- 238000006460 hydrolysis reaction Methods 0.000 claims description 5
- 239000003513 alkali Substances 0.000 claims description 4
- 238000005530 etching Methods 0.000 claims description 4
- 238000002161 passivation Methods 0.000 claims description 4
- 238000005554 pickling Methods 0.000 claims description 4
- 238000002203 pretreatment Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 235000021110 pickles Nutrition 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 230000001954 sterilising effect Effects 0.000 claims description 3
- 239000002562 thickening agent Substances 0.000 claims description 3
- 239000005416 organic matter Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 abstract description 4
- 230000016615 flocculation Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 2
- 238000010992 reflux Methods 0.000 abstract description 2
- 230000003301 hydrolyzing effect Effects 0.000 abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 238000009300 dissolved air flotation Methods 0.000 abstract 2
- 230000010354 integration Effects 0.000 abstract 2
- 239000002245 particle Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000004912 1,5-cyclooctadiene Substances 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 235000011148 calcium chloride Nutrition 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000003113 dilution method Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005363 electrowinning Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses an agricultural equipment coating wastewater treatment technology. The agricultural equipment coating wastewater treatment technology is characterized by comprising the following steps of pretreatment, namely entering wastewater into an oil removal collection tank, and removing oil slick on the surface; coagulating sedimentation, namely, lifting the wastewater to a coagulating sedimentation integration tank I by a pump, so that the wastewater is subjected to coagulating flocculation action and forms large floc particles, entering water yielded from the coagulating sedimentation integration tank I into a dissolved air flotation machine, and entering water yielded from the dissolved air flotation machine into a buffer tank; hydrolytic acidification, namely, entering water yielded from the buffer tank into a hydrolytic acidification tank; aerobic treatment, namely, entering water yielded from the hydrolytic acidification tank into a contact oxidation tank, and decomposing organic matters; filtering separation, entering water yielded from the contact oxidation tank into a secondary sedimentation tank, after removing SS (suspended solids), entering a sand filter and flowing into a carbon filter, entering water yielded from the carbon filter into a disinfection water tank, and after disinfection, entering a recycling water tank; and carrying out sludge treatment. The agricultural equipment coating wastewater treatment technology is simple, convenient to operate and easy to maintain and manage; by adopting the agricultural equipment coating wastewater treatment technology, the sludge reflux is not needed, the sludge bulking phenomenon does not occur, the recovery rate reaches above 95%, and the zero emission is truly realized.
Description
Technical field
The present invention relates to the processing of chemical field waste water, specifically a kind of agricultural equipment coating wastewater treatment process.
Background technology
Mechanization of agriculture is the important component part of agricultural modernization, to promoting rural economic development, the level that increases productivity, the important effect of pushing forward the building of a new socialist countryside.Large-scale agricultural equipment development is " the national science and technology supporting plan " main project, the project emphasis is around improving labor productivity, labour productivity, resource utilization, and guarantee the national food safety urgent demand to large-scale farm power and working equipment, aim at multi-functional, intelligent, the agricultural equipment technical development emphasis such as economical equipment, put forth effort to break through the core key technology equipment of large-scale agricultural equipment, put forth effort to break the situation that current Chinese large-sized agricultural equipment relies on import fully, urge to push away product and industry restructuring upgrading, promote agricultural machanization and the good and fast development of agro-based industry.
In the agricultural equipment industry, Painting Shop is the emphasis of environment protection.Large-scale agricultural equipment coating wastewater is mainly the phosphorized waste water, pickling waste waters, degreasing waste water, electrophoresis waste water, painting wastewater, chromium passivation wastewater, the table that produce in production process and adjusts waste liquid etc., and principal pollutant are the heavy metal ion such as chromium, nickel, manganese, zinc, COD, petroleum-type and SS etc.Complicated component, Pollutant levels be high,, biodegradability is poor, and intractability is larger.If directly be discharged in environment without processing, will cause serious pollution to environment.The problems such as at present floating partition method, electrowinning method, reverse osmosis method etc., all exist cost high, can not fine processing up to standard.
Summary of the invention
The object of the present invention is to provide agricultural equipment coating wastewater treatment process.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of agricultural equipment coating wastewater treatment process, is characterized in that, comprises the following steps:
(1) pre-treatment: waste water enters the oil removal collecting tank, the insulation surfaces oil slick;
(2) coagulating sedimentation: the waste water that step (1) obtains is promoted to coagulating sedimentation integrated pond I through pump, adds alkali to regulate pH to 12-13, adds CaCL simultaneously
2, remove Fe in waste liquid
3+and PO4
3-, then add coagulating agent PAC, PAM, and the coagulation-flocculation effect occurs form the macrobead flco, precipitation is removed SS, and the integrated pond I water outlet of retrogradation shallow lake enters dissolved gas floatator, adds HCl, and regulating pH is 8, and the dissolved gas floatator water outlet enters Buffer Pool;
(3) acidication: the Buffer Pool water outlet enters hydrolysis acidification pool, and hardly degraded organic substance in waste water is converted into to easily biodegradable organics;
(4) aerobic treatment: step (3) hydrolysis acidification pool water outlet enters contact-oxidation pool, decomposing organic matter;
(5) filtering separation: step (4) contact-oxidation pool water outlet enters after second pond is removed SS and enters sand filter, rear inflow carbon filtering pool, and the carbon filtering pool water outlet enters reuse pool after entering the disinfection pool sterilization;
(6) sludge treatment: in coagulating sedimentation integrated pond I, dissolved gas floatator, second pond, mud enters sludge thickener, and mud promotes and enters plate-and-frame filter press through spiral pump, and the dehydrated sludge outward transport is disposed.
Described waste water comprises pickling waste waters, spent pickle liquor, degreasing waste water, degreasing wasting liquid, electrophoresis waste water, electrophoresis waste liquid, phosphorized waste water, etching waste liquor, the waste liquid that sprays paint, passivation waste liquid, table tune waste liquid.
In described step (2), alkali is NaOH, described NaOH and the CaCL of adding
2mass ratio be 4:3.
In described step (2), HCL concentration is 10%.
In described step (2), the concentration of coagulating agent PAC, PAM is 2 ‰, and dosage is 1-3mg/L.
Beneficial effect of the present invention:
1, take high density and low concentration wastewater categorised collection, dilution process after high-concentration waste liquid is evenly sent into to corresponding low concentration wastewater equalizing tank and evenly mixed with low discharge through lift pump, thus reduce the impact load to follow-up unit.
2, the aerobic biochemical section is the core of whole large-scale agricultural equipment coating wastewater treatment process.。
3, processing efficiency is higher, saves and takes up an area.
4, do not need to cultivate specially bacterial classification, biofilm is convenient, can intermittent operation.
5, the sludge creation amount is few, and mud granule is larger, is easy to precipitation.
6, impact load has stronger adaptive faculty, under the intermittent operation condition, still can keep good treatment effect, and the inhomogeneous enterprise to draining, more be of practical significance.
7, simple to operate, operation facilitates, is easy to maintenance management, without sludge reflux, does not produce the sludge bulking phenomenon.
8, large-scale agricultural equipment coating wastewater after treatment, is directly used in production, and reclamation rate reaches more than 95%, real realization " zero release ".
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
Spent pickle liquor, the degreasing wasting liquid that regularly discharge in workshop enter the oily waste liquor collecting tank and are collected, and then quantitatively pump into the oil removal collecting tank, through the oil removal pre-treatment, enter subsequent disposal.
Pickling waste waters, the degreasing waste water of workshop discharge enter the oil removal collecting tank, the insulation surfaces oil slick, simultaneously by waste-oil scavenger by the most of floating oil collecting in surface to oil storage barrel, waste water after the oil removal of oil removal collecting tank is promoted to coagulating sedimentation integrated pond I through pump, add NaOH to regulate PH to 12-13, add CaCL2 simultaneously, remove Fe3+ and PO43-in waste water, the mass ratio of NaOH and CaCL2 is 4:3.Add coagulating agent PAC and PAM, the concentration of coagulating agent PAC, PAM is 2 ‰ again, and dosage is 1-3mg/L.The coagulation-flocculation effect occurs form the macrobead flco, under action of gravity, precipitation is removed most of SS, the water outlet of coagulating sedimentation integrated pond I enters the combined-type dissolved gas floatation machine, add HCL, regulate PH to 8, after adding PAC and PAM generation coagulation to produce small flco, the PAC dosage is 2mg/L, the PAM dosage is 1mg/L, is floated to the water surface and forms scum silica frost under the effect of micro-bubble, scums under the mud scraper effect and remains oil slick.The water outlet of combined-type dissolved gas floatation machine enters Buffer Pool.
Electrophoresis waste liquid, the waste liquid that sprays paint, passivation waste liquid, the table of regularly discharge of workshop are adjusted waste liquid, enter comprehensive waste collection pond and are collected, and then quantitatively pump into the comprehensive wastewater collecting tank, carry out subsequent disposal.
Comprehensive waste collection pond waste liquid quantitatively pumps into the comprehensive wastewater collecting tank, with electrophoresis waste water, mix, be promoted to coagulating sedimentation integrated pond I through pump, promote the waste water of coming with the oil removal collecting tank and mix, after the most of SS of removal and part COD are processed in dosing, enter Buffer Pool.
The phosphorized waste water of workshop discharge enters the phosphorized waste water collecting tank, through the pump lifting waste water, enters coagulating sedimentation integrated pond I, adds sulphite hexavalent chrome reduction is become to trivalent chromium, makes it to generate precipitation of hydroxide.By adding NaOH to regulate PH at 12-13, add CaCl2 simultaneously, in waste water, Ni2+ is combined with OH-and is generated Ni (OH) 2 precipitations, Mn2+ is combined with OH-and is generated Mn (OH) 2 precipitations, PO43-is combined with Ca2+ and is generated Ca3(PO4) 2 precipitations, Ni (OH) 2 precipitations, Mn (OH) 2 precipitations, Ca3(PO4) 2, add flocculation agent PAC, coagulant aids PAM, the PAC dosage is 2mg/L, the PAM dosage is 1mg/L, form large alumen ustum by coagulation, through the gravitational settling effect, remove most flcos and SS, through this section, process, chromium in waste water, nickel, manganese, zinc content can be down to below 1PPM, and reduction organic concentration.By adding HCL readjustment pH between 9-10.5, in waste water, Zn2+ is combined with OH-and is generated Zn (OH) 2 precipitations, after by being combined with flocculation agent PAC, coagulant aids PAM, form large alumen ustum, by the gravitational settling effect, remove, and the reduction organic concentration, the water outlet of coagulating sedimentation integrated pond I enters Buffer Pool.
Workshop is the etching waste liquor of discharge regularly, enters the etching waste liquor collecting tank and is collected, and then quantitatively pumps into the phosphorized waste water collecting tank, carries out follow-up materialization processing.
Sanitary sewage enters pump well and enters Buffer Pool through grid after the macrobead foreign material are removed in the slag pre-treatment and fully mix with the comprehensive wastewater of processing respectively through materialization and phosphorized waste water, regulate pH to neutral, part is promoted to hydrolysis acidification pool (controlling flow at 15m3/h), hardly degraded organic substance in waste water is converted into to easily biodegradable organics, improves the biodegradability of waste water.And then enter biological contact oxidation pond and carry out aerobic treatment, decompose the most of organism of residue.The biological contact oxidation pond water outlet enters sand filter after second pond is removed most of SS, remove residue SS by the filtrate crown_interception, rear gravity flow enters carbon filtering pool, further remove rest COD and colourity by the charcoal absorption effect, the carbon filtering pool water outlet enters reuse pool after entering disinfection pool sterilization, by blowback use to afforesting, flush the toilet, belt filter press flushing and molten medicine etc. in ground flushing and sewage plant.
Buffer Pool waste water is except middle water reuse required water, all the other waste water are through standardization discharge outlet qualified discharge, it is concentrated that coagulating sedimentation integrated pond I and dissolved gas floatator materialized mud, second pond biochemical sludge enter sludge thickener 1, promote and enter plate-and-frame filter press by spiral pump, the dehydrated sludge outward transport is disposed.
Table 1 is each cell processing effect of the present invention.Unit: mg/L (except pH, intestinal bacteria)
Above content is only to technique example of the present invention and explanation; affiliated those skilled in the art make various modifications to described specific embodiment or supplement or adopt similar mode to substitute; only otherwise depart from the technique of invention or surmount this scope as defined in the claims, all should belong to protection scope of the present invention.
Claims (5)
1. an agricultural equipment coating wastewater treatment process, is characterized in that, comprises the following steps:
(1) pre-treatment: waste water enters the oil removal collecting tank, the insulation surfaces oil slick;
(2) coagulating sedimentation: the waste water that step (1) obtains is promoted to coagulating sedimentation integrated pond I through pump, adds alkali to regulate pH to 12-13, adds CaCL simultaneously
2, remove Fe in waste liquid
3+and PO4
3-, then add coagulating agent PAC, PAM, and the coagulation-flocculation effect occurs form the macrobead flco, precipitation is removed SS, and the integrated pond I water outlet of retrogradation shallow lake enters dissolved gas floatator, adds HCl, and regulating pH is 8, and the dissolved gas floatator water outlet enters Buffer Pool;
(3) acidication: the Buffer Pool water outlet enters hydrolysis acidification pool, and hardly degraded organic substance in waste water is converted into to easily biodegradable organics;
(4) aerobic treatment: step (3) hydrolysis acidification pool water outlet enters contact-oxidation pool, decomposing organic matter;
(5) filtering separation: step (4) contact-oxidation pool water outlet enters after second pond is removed SS and enters sand filter, rear inflow carbon filtering pool, and the carbon filtering pool water outlet enters reuse pool after entering the disinfection pool sterilization;
(6) sludge treatment: in coagulating sedimentation integrated pond I, dissolved gas floatator, second pond, mud enters sludge thickener, and mud promotes and enters plate-and-frame filter press through spiral pump, and the dehydrated sludge outward transport is disposed.
2. agricultural equipment coating wastewater treatment process according to claim 1, it is characterized in that, described waste water comprises pickling waste waters, spent pickle liquor, degreasing waste water, degreasing wasting liquid, electrophoresis waste water, electrophoresis waste liquid, phosphorized waste water, etching waste liquor, the waste liquid that sprays paint, passivation waste liquid, table tune waste liquid.
3. agricultural equipment coating wastewater treatment process according to claim 1, is characterized in that, in described step (2), alkali is NaOH, described NaOH and the CaCL of adding
2mass ratio be 4:3.
4. agricultural equipment coating wastewater treatment process according to claim 1, is characterized in that, in described step (2), HCL concentration is 10%.
5. agricultural equipment coating wastewater treatment process according to claim 1, is characterized in that, in described step (2), the concentration of coagulating agent PAC, PAM is 2 ‰, and dosage is 1-3mg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104144958A CN103449678A (en) | 2013-09-12 | 2013-09-12 | Agricultural equipment coating wastewater treatment technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104144958A CN103449678A (en) | 2013-09-12 | 2013-09-12 | Agricultural equipment coating wastewater treatment technology |
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|---|---|
| CN103449678A true CN103449678A (en) | 2013-12-18 |
Family
ID=49732580
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| CN2013104144958A Pending CN103449678A (en) | 2013-09-12 | 2013-09-12 | Agricultural equipment coating wastewater treatment technology |
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Cited By (18)
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| CN105060647A (en) * | 2015-08-17 | 2015-11-18 | 福建盈浩工艺制品有限公司 | Method for comprehensively treating paint spraying wastewater and domestic wastewater |
| CN105084680A (en) * | 2015-09-28 | 2015-11-25 | 江苏泰源环保科技有限公司 | Industrial sewage purification system |
| CN105417840A (en) * | 2015-11-02 | 2016-03-23 | 安徽洋森环保节能科技有限公司 | Treatment method for coating pretreatment wastewater |
| CN105502800A (en) * | 2015-09-28 | 2016-04-20 | 江苏泰源环保科技股份有限公司 | Paper manufacturing industry wastewater treatment method |
| CN105984992A (en) * | 2015-01-31 | 2016-10-05 | 福建省首融环境科技有限公司 | Paint wastewater treatment method |
| CN105983300A (en) * | 2015-01-31 | 2016-10-05 | 福建省首融环境科技有限公司 | Treatment process for paint exhaust gas |
| CN106186551A (en) * | 2016-08-25 | 2016-12-07 | 常州市锦云工业废弃物处理有限公司 | A kind of multipurpose wastewater treatment equipment processing equipment |
| CN106277447A (en) * | 2016-08-26 | 2017-01-04 | 东莞市粤丰废水处理有限公司 | The processing method of hc effluent and process streamline |
| CN106698755A (en) * | 2017-02-06 | 2017-05-24 | 苏州佳伟通环保科技有限公司 | Environmentally-friendly waste water and agent treatment system |
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| CN109534608A (en) * | 2018-12-21 | 2019-03-29 | 泽州县和美环保科技有限公司 | A kind of domestic sewage processing system and processing method |
| CN111410374A (en) * | 2020-04-20 | 2020-07-14 | 深圳市世清环保科技有限公司 | System and method for treating nickel-containing electroplating wastewater |
| CN112624517A (en) * | 2020-12-25 | 2021-04-09 | 苏州市环境保护有限公司 | Coating industry sewage treatment process |
| WO2021082136A1 (en) * | 2019-11-01 | 2021-05-06 | 苏州柳溪机电工程有限公司 | Wastewater treatment system for environment-friendly paint coating line |
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| CN107685073A (en) * | 2017-09-26 | 2018-02-13 | 上海格林曼环境技术有限公司 | A kind of concentrated combustion formula original position thermal desorption prosthetic device for contaminated site |
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| CN108558117A (en) * | 2017-12-22 | 2018-09-21 | 合肥学院 | Coating wastewater processing method |
| CN108467154A (en) * | 2018-05-02 | 2018-08-31 | 江苏大彭环保科技有限公司 | A kind of SBR waste water treatment process of soybean lecithin production |
| CN109534608A (en) * | 2018-12-21 | 2019-03-29 | 泽州县和美环保科技有限公司 | A kind of domestic sewage processing system and processing method |
| WO2021082136A1 (en) * | 2019-11-01 | 2021-05-06 | 苏州柳溪机电工程有限公司 | Wastewater treatment system for environment-friendly paint coating line |
| CN111410374A (en) * | 2020-04-20 | 2020-07-14 | 深圳市世清环保科技有限公司 | System and method for treating nickel-containing electroplating wastewater |
| CN112624517A (en) * | 2020-12-25 | 2021-04-09 | 苏州市环境保护有限公司 | Coating industry sewage treatment process |
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