CN104925986B - 钢材行业酸洗废液及冲洗废水近零排放处理系统及其工艺 - Google Patents
钢材行业酸洗废液及冲洗废水近零排放处理系统及其工艺 Download PDFInfo
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- CN104925986B CN104925986B CN201510190526.5A CN201510190526A CN104925986B CN 104925986 B CN104925986 B CN 104925986B CN 201510190526 A CN201510190526 A CN 201510190526A CN 104925986 B CN104925986 B CN 104925986B
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- waste water
- pickle liquor
- pond
- flushing waste
- flushing
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- 239000002351 wastewater Substances 0.000 title claims abstract description 120
- 235000021110 pickles Nutrition 0.000 title claims abstract description 112
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 title claims abstract description 98
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- 239000002253 acid Substances 0.000 claims abstract description 47
- 239000007788 liquid Substances 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims abstract description 33
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 27
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 27
- 239000002244 precipitate Substances 0.000 claims abstract description 10
- 238000005406 washing Methods 0.000 claims abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000003546 flue gas Substances 0.000 claims abstract description 4
- 239000002918 waste heat Substances 0.000 claims abstract description 4
- 230000003647 oxidation Effects 0.000 claims description 24
- 238000007254 oxidation reaction Methods 0.000 claims description 24
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 20
- 238000005273 aeration Methods 0.000 claims description 20
- 238000000926 separation method Methods 0.000 claims description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 238000007710 freezing Methods 0.000 claims description 17
- 230000008014 freezing Effects 0.000 claims description 17
- 239000006228 supernatant Substances 0.000 claims description 17
- 238000002425 crystallisation Methods 0.000 claims description 16
- 235000011149 sulphuric acid Nutrition 0.000 claims description 15
- 239000001117 sulphuric acid Substances 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 11
- 238000003828 vacuum filtration Methods 0.000 claims description 11
- 239000013078 crystal Substances 0.000 claims description 8
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 7
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 claims description 6
- 239000010802 sludge Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 4
- 238000006297 dehydration reaction Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 abstract description 26
- 239000002699 waste material Substances 0.000 abstract description 16
- 239000000463 material Substances 0.000 abstract description 5
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- 239000010808 liquid waste Substances 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
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- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 12
- 238000005554 pickling Methods 0.000 description 11
- 230000008025 crystallization Effects 0.000 description 10
- 238000001704 evaporation Methods 0.000 description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
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- 239000010865 sewage Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
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- 230000007812 deficiency Effects 0.000 description 1
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- 238000001914 filtration Methods 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 239000003014 ion exchange membrane Substances 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
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
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- 239000000047 product Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Description
Claims (3)
Priority Applications (1)
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CN201510190526.5A CN104925986B (zh) | 2015-04-21 | 2015-04-21 | 钢材行业酸洗废液及冲洗废水近零排放处理系统及其工艺 |
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CN201510190526.5A CN104925986B (zh) | 2015-04-21 | 2015-04-21 | 钢材行业酸洗废液及冲洗废水近零排放处理系统及其工艺 |
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CN104925986A CN104925986A (zh) | 2015-09-23 |
CN104925986B true CN104925986B (zh) | 2017-01-04 |
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Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105481145A (zh) * | 2016-01-11 | 2016-04-13 | 上海世渊环保科技有限公司 | 不锈钢酸洗废水/废液资源化处理方法及系统 |
CN105601015B (zh) * | 2016-01-29 | 2019-01-01 | 杭州水处理技术研究开发中心有限公司 | 一种钢材酸洗废水的零排放处理方法 |
CN105776139A (zh) * | 2016-03-16 | 2016-07-20 | 江苏双能太阳能有限公司 | 一种废酸处理工艺 |
CN105621499A (zh) * | 2016-03-25 | 2016-06-01 | 无锡宇辰工业污泥处理技术研究院有限公司 | 一种废硫酸循环使用处理设备 |
CN107555487A (zh) * | 2017-08-01 | 2018-01-09 | 常熟市异型钢管有限公司 | 钢管酸洗后废硫酸的冷冻结晶及回收工艺 |
CN107459171A (zh) * | 2017-09-04 | 2017-12-12 | 合肥天翔环境工程有限公司 | 一种污水处理系统 |
CN108409009A (zh) * | 2018-01-30 | 2018-08-17 | 河南天工环境科技有限公司 | 一种金属表面酸洗产生的废酸液及酸洗废水资源化回收利用的处理方法 |
TWI675008B (zh) * | 2018-07-04 | 2019-10-21 | 威威科技有限公司 | 廢酸洗液的處理方法 |
CN115043540B (zh) * | 2022-06-14 | 2024-01-23 | 沈阳理工大学 | 利用烟气处理钢铁盐酸酸洗废液装置及其方法、过滤式催化器和应用 |
Family Cites Families (9)
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US5039428B1 (en) * | 1990-03-05 | 1994-04-12 | Tetra Technologoes Inc | Waste water treatment process using improved recycle of high density sludge |
JPH1147795A (ja) * | 1997-07-31 | 1999-02-23 | Nittetsu Mining Co Ltd | 特殊鋼硫酸酸洗廃液を処理する方法 |
KR100416476B1 (ko) * | 2003-08-12 | 2004-01-31 | 주식회사 한남코퍼레이션 | 동 프탈로시아닌 생산공정에서 발생된 폐수 중의 질소성분 총량에 대한 효율적 제어방법 |
CN101648757B (zh) * | 2009-09-01 | 2011-11-02 | 浙江大学 | 不锈钢加工工艺废水分级沉淀回收回用处理方法 |
CN102107963B (zh) * | 2010-12-30 | 2012-09-05 | 天津市环境保护科学研究院 | 钢铁工业酸洗废水和金属离子的处理方法 |
CN103922515A (zh) * | 2014-05-07 | 2014-07-16 | 苏州皇森机电科技有限公司 | 一种不锈钢酸洗废水的综合处理装置 |
CN104310647B (zh) * | 2014-10-21 | 2017-05-17 | 徐超群 | 不锈钢酸洗废酸液与废水处理的资源化利用方法 |
CN104445720A (zh) * | 2014-11-14 | 2015-03-25 | 无锡伊佩克科技有限公司 | 钢铁业酸洗废液处理工艺 |
CN204607739U (zh) * | 2015-04-21 | 2015-09-02 | 杭州科瑞特环境技术有限公司 | 一种钢材行业酸洗废液及冲洗废水近零排放处理系统 |
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C41 | Transfer of patent application or patent right or utility model | ||
CB03 | Change of inventor or designer information |
Inventor after: Zhu Shuiping Inventor after: Yu Guozhong Inventor after: Sha Yibo Inventor before: Shao Zhenhua Inventor before: Ning Yajun Inventor before: Gu Jiatao |
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Effective date of registration: 20161121 Address after: 312300 Shaoxing province Shangyu District Lake Lake Industrial Zone hundred Feng Road, No. 14 Applicant after: ZHEJIANG ZHENGJING ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Address before: 311215 Xiaoshan Zhejiang District Ning Wai Street rich Lane Lane No. 23 private enterprise development building B floor, floor 19, Applicant before: HANGZHOU CREATE ENVIRONMENT TECHNOLOGY CO.,LTD. |
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Denomination of invention: Near-zero discharge treatment system and process for pickling waste liquid and flushing waste water in steel industry Effective date of registration: 20220808 Granted publication date: 20170104 Pledgee: Shangyu branch of the China Co truction Bank Corp. Pledgor: ZHEJIANG ZHENGJING ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Registration number: Y2022330001644 |
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Date of cancellation: 20221201 Granted publication date: 20170104 Pledgee: Shangyu branch of the China Co truction Bank Corp. Pledgor: ZHEJIANG ZHENGJING ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Registration number: Y2022330001644 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: Near zero discharge treatment system and process of pickling waste liquid and flushing waste water in steel industry Effective date of registration: 20221229 Granted publication date: 20170104 Pledgee: Shangyu branch of the China Co truction Bank Corp. Pledgor: ZHEJIANG ZHENGJING ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Registration number: Y2022330003721 |