CN103951127A - Method for treating galvanization sewage - Google Patents
Method for treating galvanization sewage Download PDFInfo
- Publication number
- CN103951127A CN103951127A CN201410166060.0A CN201410166060A CN103951127A CN 103951127 A CN103951127 A CN 103951127A CN 201410166060 A CN201410166060 A CN 201410166060A CN 103951127 A CN103951127 A CN 103951127A
- Authority
- CN
- China
- Prior art keywords
- sewage
- zinc
- plated
- galvanization
- weight
- 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.)
- Granted
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 15
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 18
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 16
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 16
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract description 16
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims abstract description 16
- 238000005189 flocculation Methods 0.000 claims abstract description 14
- 230000016615 flocculation Effects 0.000 claims abstract description 14
- 239000006228 supernatant Substances 0.000 claims abstract description 12
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003456 ion exchange resin Substances 0.000 claims abstract description 8
- 229920003303 ion-exchange polymer Polymers 0.000 claims abstract description 8
- 239000003463 adsorbent Substances 0.000 claims description 12
- 238000002525 ultrasonication Methods 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000005352 clarification Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 abstract description 9
- 239000001301 oxygen Substances 0.000 abstract description 9
- 239000000126 substance Substances 0.000 abstract description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000011701 zinc Substances 0.000 abstract description 6
- 229910052725 zinc Inorganic materials 0.000 abstract description 6
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 abstract description 3
- 238000009210 therapy by ultrasound Methods 0.000 abstract 3
- 239000007788 liquid Substances 0.000 abstract 2
- 239000002244 precipitate Substances 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 abstract 1
- 230000001603 reducing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Landscapes
- Water Treatment By Sorption (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention provides a method for treating galvanization sewage. The method comprises the following steps: (1) putting ferrous sulfate and ferric trichloride in the galvanization sewage to carry out flocculation; (2) after flocculation, carrying out ultrasonic treatment on the sewage; (3) after the ultrasonic treatment is finished, carrying out standing and clarifying, and removing the precipitate of the bottom layer, thereby obtaining the liquid supernatant of the galvanization sewage; (4) enabling the liquid supernatant of the galvanization sewage subjected to the ultrasonic treatment and the flocculation treatment to pass through a D751 chelating ion exchange resin; (5) collecting a sewage effluent after exchange and enabling the sewage effluent to pass through an SP825 macroporous adsorption resin; (6) finally, collecting the treated galvanization sewage. The content of zinc ions in the treated galvanization sewage is reduced to the range of 12-17mg/L from 107mg/L and the chemical oxygen demand value of the sewage is reduced to the range from 38mg/L to 44mg/L from 264mg/L, and therefore, the zinc content of the sewage and the chemical oxygen demand are remarkably reduced.
Description
Technical field
The present invention relates to a kind for the treatment of process of sewage, particularly relate to a kind for the treatment of process of zinc-plated sewage.
Background technology
Generally, metallic surface is after the various environment of Long contact time, and the situation that has rust and oxydation produces, zinc-plated at metallic surface, exactly in order to address this problem.Therefore zincincation is a kind of preparation technology common in traditional manufacture, the zinc-plated sewage that brought is thus also more, in these zinc-plated sewage, not only zinc content is higher, the chemical oxygen demand value of sewage is also higher, if be directly disposed in environment, bring very large infringement can to the environment of sewage discharge periphery.In reduction sewage, zinc content and chemical oxygen demand are very necessary, and conventional ion-exchange techniques etc. are comparatively limited to the reducing effect of these two values, can not significantly effectively reduce the hazardness of zinc-plated sewage.
Summary of the invention
The technical problem solving: zinc-plated sewage is through after conventional disposal methods, and zinc ion content reduces less, and chemical oxygen demand reduces limited, the problem that discharge still can serious environment pollution.
Technical scheme: the treatment process that the invention discloses kind of zinc-plated sewage, treatment step is as follows: (1) drops into ferrous sulfate and iron trichloride in zinc-plated sewage, the addition of ferrous sulfate is the 3.3wt%～3.7wt% of sewage weight, and the addition of iron trichloride is the 0.6wt%～1.2wt% of sewage weight; (2) added after ferrous sulfate and iron trichloride flocculation agent, sewage is carried out to ultrasonication, ultrasonic power is 1000w～1200w, and ultrasonic time is 40min; (3) after ultrasonic end, carry out standing clarification, remove bottom precipitation, obtain the supernatant liquor of zinc-plated sewage; (4) supernatant liquor of the zinc-plated sewage after ultrasonic and flocculation is passed through to D751 chelating ion exchange resin, applied sample amount is with D751 weight resin than being 5:1, and loading flow velocity is 0.8BV/h～1.8BV/h; (5) collect the effluent stream fluid after exchange, then by SP825 macroporous adsorbent resin, applied sample amount and SP825 macroporous adsorbent resin weight ratio are 4:1, loading flow velocity is 1.4BV/h～2.0BV/h; (6) the zinc-plated sewage after last collection and treatment.
Wherein, the addition of flocculation agent iron trichloride is preferably the 1.2wt% of sewage weight; The water content of D751 chelating ion exchange resin is preferably 50wt%; Ultrasonic power is preferably 1000w; During by SP825 macroporous adsorbent resin, loading flow velocity is preferably 1.4BV/h.
Beneficial effect: through after disposal methods of the present invention, in zinc-plated sewage, zinc ion content is down to 12 to 17mg/L from 107mg/L, the chemical oxygen demand of sewage is down to 38mg/L to 44mg/L from 264mg/L, has reduced significantly zinc content and the chemical oxygen demand in sewage.
Embodiment
Embodiment 1
(1) in zinc-plated sewage, drop into ferrous sulfate and iron trichloride, the addition of ferrous sulfate is the 3.7wt% of sewage weight, and the addition of iron trichloride is the 0.6wt% of sewage weight; (2) added after ferrous sulfate and iron trichloride flocculation agent, sewage is carried out to ultrasonication, ultrasonic power is 1200w, and ultrasonic time is 40min; (3) after ultrasonic end, carry out standing clarification, remove bottom precipitation, obtain the supernatant liquor of zinc-plated sewage; (4) supernatant liquor of the zinc-plated sewage after ultrasonic and flocculation is passed through to D751 chelating ion exchange resin, applied sample amount is with D751 weight resin than being 5:1, and loading flow velocity is 1.8BV/h; (5) collect the effluent stream fluid after exchange, then by SP825 macroporous adsorbent resin, applied sample amount and SP825 macroporous adsorbent resin weight ratio are 4:1, loading flow velocity is 1.4BV/h; (6) the zinc-plated sewage after last collection and treatment.
Embodiment 2
(1) in zinc-plated sewage, drop into ferrous sulfate and iron trichloride, the addition of ferrous sulfate is the 3.3wt% of sewage weight, and the addition of iron trichloride is the 1.2wt% of sewage weight; (2) added after ferrous sulfate and iron trichloride flocculation agent, sewage is carried out to ultrasonication, ultrasonic power is 1000w, and ultrasonic time is 40min; (3) after ultrasonic end, carry out standing clarification, remove bottom precipitation, obtain the supernatant liquor of zinc-plated sewage; (4) supernatant liquor of the zinc-plated sewage after ultrasonic and flocculation is passed through to D751 chelating ion exchange resin, applied sample amount is with D751 weight resin than being 5:1, and loading flow velocity is 0.8BV/h; (5) collect the effluent stream fluid after exchange, then by SP825 macroporous adsorbent resin, applied sample amount and SP825 macroporous adsorbent resin weight ratio are 4:1, loading flow velocity is 2.0BV/h; (6) the zinc-plated sewage after last collection and treatment.
Embodiment 3
(1) in zinc-plated sewage, drop into ferrous sulfate and iron trichloride, the addition of ferrous sulfate is the 3.5wt% of sewage weight, and the addition of iron trichloride is the 0.9wt% of sewage weight; (2) added after ferrous sulfate and iron trichloride flocculation agent, sewage is carried out to ultrasonication, ultrasonic power is 1100w, and ultrasonic time is 40min; (3) after ultrasonic end, carry out standing clarification, remove bottom precipitation, obtain the supernatant liquor of zinc-plated sewage; (4) supernatant liquor of the zinc-plated sewage after ultrasonic and flocculation is passed through to D751 chelating ion exchange resin, applied sample amount is with D751 weight resin than being 5:1, and loading flow velocity is 1.4BV/h; (5) collect the effluent stream fluid after exchange, then by SP825 macroporous adsorbent resin, applied sample amount and SP825 macroporous adsorbent resin weight ratio are 4:1, loading flow velocity is 1.7BV/h; (6) the zinc-plated sewage after last collection and treatment.
After processing, zinc content and chemical oxygen demand value before and after having measured in sewage.Concrete data are as follows.
After treatment, zinc content and chemical oxygen demand in sewage have obtained effectively reducing, through again processing and can discharge.
Claims (5)
1. the treatment process of a zinc-plated sewage, it is characterized in that treatment step is as follows: (1) drops into ferrous sulfate and iron trichloride in zinc-plated sewage, the addition of ferrous sulfate is the 3.3wt%～3.7wt% of sewage weight, and the addition of iron trichloride is the 0.6wt%～1.2wt% of sewage weight; (2) added after ferrous sulfate and iron trichloride flocculation agent, sewage is carried out to ultrasonication, ultrasonic power is 1000w～1200w, and ultrasonic time is 40min; (3) after ultrasonic end, carry out standing clarification, remove bottom precipitation, obtain the supernatant liquor of zinc-plated sewage; (4) supernatant liquor of the zinc-plated sewage after ultrasonic and flocculation is passed through to D751 chelating ion exchange resin, applied sample amount is with D751 weight resin than being 5:1, and loading flow velocity is 0.8BV/h～1.8BV/h; (5) collect the effluent stream fluid after exchange, then by SP825 macroporous adsorbent resin, applied sample amount and SP825 macroporous adsorbent resin weight ratio are 4:1, loading flow velocity is 1.4BV/h～2.0BV/h; (6) the zinc-plated sewage after last collection and treatment.
2. the treatment process of a kind of zinc-plated sewage according to claim 1, the addition that it is characterized in that iron trichloride is the 1.2wt% of sewage weight.
3. the treatment process of a kind of zinc-plated sewage according to claim 1, the water content that it is characterized in that D751 chelating ion exchange resin is 50wt%.
4. the treatment process of a kind of zinc-plated sewage according to claim 1, is characterized in that ultrasonic power is 1000w.
5. the treatment process of a kind of zinc-plated sewage according to claim 1, while it is characterized in that by SP825 macroporous adsorbent resin, loading flow velocity is 1.4BV/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410166060.0A CN103951127B (en) | 2014-04-23 | 2014-04-23 | Method for treating galvanization sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410166060.0A CN103951127B (en) | 2014-04-23 | 2014-04-23 | Method for treating galvanization sewage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103951127A true CN103951127A (en) | 2014-07-30 |
| CN103951127B CN103951127B (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410166060.0A Active CN103951127B (en) | 2014-04-23 | 2014-04-23 | Method for treating galvanization sewage |
Country Status (1)
| Country | Link |
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| CN (1) | CN103951127B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556570A (en) * | 2014-12-25 | 2015-04-29 | 陈程 | Method for utilizing zinc ions in zinc industrial wastewater resources |
| CN104829018A (en) * | 2015-04-21 | 2015-08-12 | 俞权锋 | Chromium-containing waste water treatment method |
| CN106007119A (en) * | 2016-06-02 | 2016-10-12 | 陈昌 | Method for treating city sewage |
| CN108557765A (en) * | 2018-05-07 | 2018-09-21 | 桐乡市思远环保科技有限公司 | A kind of pickle liquor post-processing approach including zinc and iron ion |
-
2014
- 2014-04-23 CN CN201410166060.0A patent/CN103951127B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556570A (en) * | 2014-12-25 | 2015-04-29 | 陈程 | Method for utilizing zinc ions in zinc industrial wastewater resources |
| CN104829018A (en) * | 2015-04-21 | 2015-08-12 | 俞权锋 | Chromium-containing waste water treatment method |
| CN106007119A (en) * | 2016-06-02 | 2016-10-12 | 陈昌 | Method for treating city sewage |
| CN108557765A (en) * | 2018-05-07 | 2018-09-21 | 桐乡市思远环保科技有限公司 | A kind of pickle liquor post-processing approach including zinc and iron ion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103951127B (en) | 2015-07-15 |
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Effective date of registration: 20191122 Address after: 215104 Wuzhong District, Jiangsu, Yue Yue Street, South Guandu Road, No., No. 6 Patentee after: SUZHOU YUNSHU NEW MATERIAL SCIENCE & TECHNOLOGY Co.,Ltd. Address before: Song Ling Zhen Wujiang District of Suzhou City, Jiangsu province 215200 Suzhou River Road No. 18 Patentee before: SUZHOU YUFAN NEW MATERIAL TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20201210 Address after: No.66, Shunhu West Road, Shengze Town, Wujiang District, Suzhou City, Jiangsu Province Patentee after: WUJIANG LYUYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 215104 No. 6 South Guandu Road, Wuzhong District Yuexi street, Suzhou, Jiangsu. Patentee before: SUZHOU YUNSHU NEW MATERIAL SCIENCE & TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20211222 Address after: 215200 room 619, building 10, entrepreneurship Park, 1188 West 2nd Ring Road, Shengze Town, Wujiang District, Suzhou City, Jiangsu Province Patentee after: SUZHOU GANNZ EIECTRONIC TECHNOLOGY Co.,Ltd. Address before: No.66, Shunhu West Road, Shengze Town, Wujiang District, Suzhou City, Jiangsu Province Patentee before: WUJIANG LYUYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. |
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Effective date of registration: 20231010 Address after: 017000 Room 1701, Jiaqi Comprehensive Service Building, Equipment Manufacturing Base, Dongsheng District, Ordos City, Inner Mongolia Autonomous Region Patentee after: Ordos Guosheng Lihua Hydrogen Production Equipment Co.,Ltd. Address before: 215200 room 619, building 10, entrepreneurship Park, 1188 West 2nd Ring Road, Shengze Town, Wujiang District, Suzhou City, Jiangsu Province Patentee before: SUZHOU GANNZ EIECTRONIC TECHNOLOGY Co.,Ltd. |
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