CN101823804B - Waste water zero emission treatment system for hot-dip galvanizing workshop - Google Patents
Waste water zero emission treatment system for hot-dip galvanizing workshop Download PDFInfo
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- CN101823804B CN101823804B CN2010101590120A CN201010159012A CN101823804B CN 101823804 B CN101823804 B CN 101823804B CN 2010101590120 A CN2010101590120 A CN 2010101590120A CN 201010159012 A CN201010159012 A CN 201010159012A CN 101823804 B CN101823804 B CN 101823804B
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- water
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- waste water
- treatment system
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- 239000002351 wastewater Substances 0.000 title claims abstract description 35
- 238000005246 galvanizing Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 15
- 239000010865 sewage Substances 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000003513 alkali Substances 0.000 claims abstract description 5
- 239000002699 waste material Substances 0.000 claims abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 4
- 239000001301 oxygen Substances 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- 238000000151 deposition Methods 0.000 claims description 19
- 238000007747 plating Methods 0.000 claims description 15
- 230000008021 deposition Effects 0.000 claims description 13
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- 230000003647 oxidation Effects 0.000 claims description 10
- 238000007254 oxidation reaction Methods 0.000 claims description 10
- 239000000498 cooling water Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000003472 neutralizing effect Effects 0.000 claims description 7
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 5
- 230000008929 regeneration Effects 0.000 claims description 5
- 238000011069 regeneration method Methods 0.000 claims description 5
- 239000011787 zinc oxide Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 239000007800 oxidant agent Substances 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 238000004065 wastewater treatment Methods 0.000 abstract description 7
- 239000010842 industrial wastewater Substances 0.000 abstract description 2
- 238000004062 sedimentation Methods 0.000 abstract 6
- 230000001590 oxidative effect Effects 0.000 abstract 3
- 238000011085 pressure filtration Methods 0.000 abstract 1
- 239000008237 rinsing water Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- 229910052725 zinc Inorganic materials 0.000 description 5
- 239000002826 coolant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- XEPNJJFNSJKTSO-UHFFFAOYSA-N azanium;zinc;chloride Chemical compound [NH4+].[Cl-].[Zn] XEPNJJFNSJKTSO-UHFFFAOYSA-N 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- -1 iron ion Chemical class 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008521 reorganization Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Removal Of Specific Substances (AREA)
- Coating With Molten Metal (AREA)
Abstract
The invention provides a waste water zero emission treatment system for a hot-dip galvanizing workshop, relates to an industrial waste water treatment system, in particular to a waste water treatment system for the hot-dip galvanizing workshop. The waste water zero emission treatment system for the hot-dip galvanizing workshop is characterized by comprising a sewage collecting unit collecting waste water in a rinsing slot via a sewage collecting tank, and rinsing water treatment equipment for inputting water in the sewage collecting tank, water in an alkali tank and pure water to a neutralization tank for neutralization, removing ferric salt and then adjusting a pH value; inputting the neutralized water to an oxidizing can and filling oxygen in the oxidizing can; inputting the water in the oxidizing can to a sloping sedimentation basin for sedimentation; inputting waste residues at the bottom of the sloping sedimentation basin to a plate filter press for pressure filtration; and finally inputting liquid at the upper part of the sloping sedimentation basin to a filtering and sedimentation basin for filtration and sedimentation, and then inputting the filtered and settled water into a pure water tank. The waste water zero emission treatment system solves the waste water treatment problem of the existing hot-dip galvanizing plant, saves finite water resource and protects environment.
Description
Technical field
The present invention relates to industrial wastewater treatment system, particularly galvanizing workshop Waste Water Treatment.
Background technology
Galvanizing workshop waste water generally is to emit or partly emit at present, pollutes the waste of serious and water resources.In recent years, certain enterprise's invention waste water " zero " discharge process technique, but existing processes only refers to rinse water, processing place waste water is not thorough like this, but also is to cause environmental pollution, and waste water resource.
Summary of the invention
The purpose of this invention is to provide a kind of waste water zero emission treatment system for hot-dip galvanizing workshop, what the present invention will solve is existing galvanizing factory waste water handling problem, practices thrift limited water resource, the protection environment.
Waste water zero emission treatment system for hot-dip galvanizing workshop of the present invention comprises:
Waste water zero emission treatment system for hot-dip galvanizing workshop is characterized in that, comprising:
Sewage collection equipment is collected the waste water in the rinse tank with sewage collecting basin;
The rinse water treatment facility, water, water purification in the water in the sewage collecting basin, the alkali pond are input to neutralization tank, neutralize, and remove molysite, the adjustment pH value; Water after the neutralization is input to oxidation tank, and in oxidation tank towards oxygen; Water in the oxidation tank is input in the bevel deposition pond, precipitates; The waste residue of bottom, bevel deposition pond is input to and carries out the press filtration processing in the plate pressure filter; The liquid on top, bevel deposition pond is input to filtering-depositing in filtration, the settling tank, and the water behind the filtering-depositing is input in the clear water tank.
Further; Waste water zero emission treatment system for hot-dip galvanizing workshop of the present invention also has following characteristics, also comprises the auxiliary agent regeneration system rapidly; This system with the plating assistant agent groove, return that liquid is input in the neutralization tank respectively in coating bath, the neutralizing agent groove; Liquid process oxidizer unit in the neutralization tank and filtration, settler, the liquid that bevel deposition pond in filtration, the settler and briquetting pressure filter produce turns back in the plating assistant agent groove and recycles, and places ammoniacal liquor in the above-mentioned neutralizing agent groove.
Waste water zero emission treatment system for hot-dip galvanizing workshop also has following characteristics, also comprises treatment of cooling water equipment, is used for waste water and cools, and removes zinc oxide.
Waste water zero emission treatment system for hot-dip galvanizing workshop of the present invention, plating assistant agent regeneration system rapidly both can reclaim zinc and replenish the plating assistant agent raw material, did not discharge heavy metal zinc protection environment again; Workshop wastewater treatment adjustment pH value removes iron ion and treatment of cooling water is removed zinc and zinc oxide can be practiced thrift a large amount of waters, protects environment again.
Waste water zero emission treatment system for hot-dip galvanizing workshop of the present invention is the three kinds of waste water (rinse water, inefficacy plating assistant agent, water coolant) to zinc-plated workshop, realizes wastewater reuse, reaches whole waste water zero emission standards.Waste water zero emission treatment system for hot-dip galvanizing workshop of the present invention has the saving water resources, reclaims heavy metal zinc, the advantage of protection environment.
Description of drawings
Fig. 1 hot dip process of the present invention workshop drainage map;
Fig. 2 is a wastewater treatment recycle system synoptic diagram of the present invention;
Fig. 3 is a plating assistant agent regeneration system rapidly synoptic diagram of the present invention.
Label among the figure: rinse tank 1, sewage collecting basin 2, neutralization tank 3, alkali pond 4, oxidation tank 5, bevel deposition pond 6, plate pressure filter 7, filtration, settling tank 9, clear water tank 10, neutralizing agent groove 11, return coating bath 12, plating assistant agent groove 13.
Embodiment
Below in conjunction with accompanying drawing and with illustrated embodiments the present invention is done detailed explanation.
Consult Fig. 2, Fig. 3, waste water zero emission treatment system for hot-dip galvanizing workshop comprises:
Waste water zero emission treatment system for hot-dip galvanizing workshop is characterized in that, comprising:
Sewage collection equipment is collected the waste water in the rinse tank with sewage collecting basin;
The rinse water treatment facility, water, water purification in the water in the sewage collecting basin, the alkali pond are input to neutralization tank, neutralize, and remove molysite, the adjustment pH value; Water after the neutralization is input to oxidation tank, and in oxidation tank towards oxygen; Water in the oxidation tank is input in the bevel deposition pond, precipitates; The waste residue of bottom, bevel deposition pond is input to and carries out the press filtration processing in the plate pressure filter; The liquid on top, bevel deposition pond is input to filtering-depositing in filtration, the settling tank, and the water behind the filtering-depositing is input in the clear water tank.
Waste water zero emission treatment system for hot-dip galvanizing workshop; Also comprise the auxiliary agent regeneration system rapidly; This system with the plating assistant agent groove, return that liquid is input in the neutralization tank respectively in coating bath, the neutralizing agent groove; Liquid process oxidizer unit in the neutralization tank and filtration, settler, the liquid that bevel deposition pond in filtration, the settler and briquetting pressure filter produce turns back in the plating assistant agent groove and recycles, and places ammoniacal liquor in the above-mentioned neutralizing agent groove.
Waste water zero emission treatment system for hot-dip galvanizing workshop also comprises treatment of cooling water equipment, is used for waste water and cools, and removes zinc oxide.
Consult Fig. 1, be divided three classes rinse water, inefficacy plating assistant agent, water coolant of the water system in galvanizing workshop reconfigure, and (use the plating assistant agent reclaim equiment; Sewage treatment equipment; Treatment of cooling water equipment is handled respectively, and classification loop realizes " zero release ".
Waste water zero emission treatment system for hot-dip galvanizing workshop of the present invention, principal feature is: the reorganization of galvanizing workshop water system, handle with three kinds of equipment of our company respectively, recycle.Comprise: 1.1 sewage collection equipments (water collecting basin) are collected the rinse water in poaching wastewater and workshop; Wash the zinc that returns on plating piece and the anchor clamps off 1.2 return pickling tank (dezincification groove); 1.3 the plating assistant agent reclaim equiment is removed molysite and is replenished zinc ammonium chloride; 1.4 the rinse water treatment facility is removed molysite adjustment pH value; 1.5 the treatment of cooling water facility, cooling water temperature is removed zinc oxide.
Claims (1)
1. waste water zero emission treatment system for hot-dip galvanizing workshop is characterized in that, comprising:
Sewage collection equipment is collected the waste water in the rinse tank with sewage collecting basin;
The rinse water treatment facility, water, water purification in the water in the sewage collecting basin, the alkali pond are input to neutralization tank, neutralize, and remove molysite, adjustment pH value; Water after the neutralization is input to oxidation tank, and in oxidation tank towards oxygen; Water in the oxidation tank is input in the bevel deposition pond, precipitates; The waste residue of bottom, bevel deposition pond is input to and carries out the press filtration processing in the plate pressure filter; The liquid on top, bevel deposition pond is input to filtering-depositing in filtration, the settling tank, and the water behind the filtering-depositing is input in the clear water tank;
Also comprise the auxiliary agent regeneration system rapidly; This system with the plating assistant agent groove, return that liquid is input in the neutralization tank respectively in coating bath, the neutralizing agent groove; Liquid process oxidizer unit in the neutralization tank and filtration, settler; The liquid that bevel deposition pond in filtration, the settler and plate pressure filter produce turns back in the plating assistant agent groove and recycles, and places ammoniacal liquor in the above-mentioned neutralizing agent groove;
Also comprise treatment of cooling water equipment, be used for waste water and cool, remove zinc oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101590120A CN101823804B (en) | 2010-04-27 | 2010-04-27 | Waste water zero emission treatment system for hot-dip galvanizing workshop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101590120A CN101823804B (en) | 2010-04-27 | 2010-04-27 | Waste water zero emission treatment system for hot-dip galvanizing workshop |
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| Publication Number | Publication Date |
|---|---|
| CN101823804A CN101823804A (en) | 2010-09-08 |
| CN101823804B true CN101823804B (en) | 2012-08-01 |
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| CN2010101590120A Expired - Fee Related CN101823804B (en) | 2010-04-27 | 2010-04-27 | Waste water zero emission treatment system for hot-dip galvanizing workshop |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874951B (en) * | 2012-09-28 | 2014-02-05 | 浙江华电器材检测研究所 | Zinc-layer uniformity test wastewater treatment equipment |
| CN103482817A (en) * | 2013-08-23 | 2014-01-01 | 安徽宏源铁塔有限公司 | Environment-friendly zero-emission treatment system for hot galvanizing wastewater of steel piece of electric power iron tower |
| CN103951105A (en) * | 2014-04-27 | 2014-07-30 | 唐山正元管业有限公司 | Method for recycling and treating hot galvanizing process waste water |
| CN107915299A (en) * | 2017-10-30 | 2018-04-17 | 昆明理工大学 | A kind of adjusting method and device of mechanical zinc-plating wastewater treatment liquid |
| CN107902791A (en) * | 2017-10-30 | 2018-04-13 | 昆明理工大学 | A kind of processing method and processing device of mechanical zinc-plating waste water |
| CN109761448A (en) * | 2019-03-12 | 2019-05-17 | 常熟风范电力设备股份有限公司 | A kind of processing method of steel member hot galvanizing waste water |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102036A (en) * | 1987-06-13 | 1987-12-23 | 铁道部株洲电力机车工厂 | Treatment for rinsig waste water from low chromium passivating process during zinc plating |
| CN1847443A (en) * | 2006-05-11 | 2006-10-18 | 谭仲德 | Hot dip galvanizing process |
| CN101215682A (en) * | 2007-12-29 | 2008-07-09 | 浙江盛达铁塔有限公司 | Non-poaching-water common hot-dip galvanizing technique |
-
2010
- 2010-04-27 CN CN2010101590120A patent/CN101823804B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102036A (en) * | 1987-06-13 | 1987-12-23 | 铁道部株洲电力机车工厂 | Treatment for rinsig waste water from low chromium passivating process during zinc plating |
| CN1847443A (en) * | 2006-05-11 | 2006-10-18 | 谭仲德 | Hot dip galvanizing process |
| CN101215682A (en) * | 2007-12-29 | 2008-07-09 | 浙江盛达铁塔有限公司 | Non-poaching-water common hot-dip galvanizing technique |
Non-Patent Citations (1)
| Title |
|---|
| 胡金海.镀锌钝化废水化学法处理.《金属制品》.1989,第15卷(第01期),第59-61页. * |
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| CN101823804A (en) | 2010-09-08 |
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