CN102786124A - Method for treating machine oil substance in waste water - Google Patents
Method for treating machine oil substance in waste water Download PDFInfo
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- CN102786124A CN102786124A CN2011101329224A CN201110132922A CN102786124A CN 102786124 A CN102786124 A CN 102786124A CN 2011101329224 A CN2011101329224 A CN 2011101329224A CN 201110132922 A CN201110132922 A CN 201110132922A CN 102786124 A CN102786124 A CN 102786124A
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- waste water
- oily substance
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- polyacrylamide solution
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Abstract
The invention discloses a method for treating machine oil substances in waste water, which is characterized in that the method comprises the following steps: firstly, adding a polyaluminium chloride solution with a mass concentration of 5% into recovered waste water, fully stirring; after partial flocculation of suspended substances in the waste water, adding a polyacrylamide solution with a mass concentration of 3% so as to enlarge the flocculated bodies in the waste water; allowing all the flocculated bodies in the waste water to float on the surface through air floatation, and removing the flocculated bodies together with oil substances. The treating method of the invention is simple, can remove both oil substances and suspended particles in the waste water; the suspended particles are removed thoroughly; the treated waste water can be recycled; resources are saved, and environment pollution is reduced.
Description
Technical field
The present invention relates to a kind of method of handling industrial Cleaning Wastewater, particularly a kind of method of handling mechanical oily substance in the waste water.
Background technology
The waste water oleaginousness of wash-out valve is big, and the suspension small-particle is many, and wastewater temperature is higher, generally about 50 degree.Without handling directly discharging, its hazardness is very big, can cause very serious environmental pollution.In the prior art, under the company that has not directly entered through processing, what also have then was through striking off upper strata oily substance postprecipitation, entering underground again.Water after handling in this way can not be removed suspended substance in the water body at all fully, not only wastes thermal resource, and the upper strata oils of striking off also need be proceeded to handle.This treatment process is cumbersome, expends time in the waste resource.
Summary of the invention
The technical problem that the present invention will solve is: the suspended particle that contains in the waste water of prior art to wash-out valve is handled thoroughly in order to overcome, waste resource and problem such as expend time in, and a kind of method of handling mechanical oily substance in the waste water is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method of handling mechanical oily substance in the waste water; It is characterized in that realizing: at first through following steps; The adding mass concentration is 5% polymeric aluminum chlorides solution in the waste water that reclaims, and fully stirs; After the suspended matter in the waste water partly condenses, add massfraction again and be 3% polyacrylamide solution, so that the flco of waste water becomes big; Through air floating method, make the flco in the waste water all float on the surface at last, be removed with oily substance again.
The volume ratio of described polymeric aluminum chlorides solution and polyacrylamide solution and waste water is 2: 1: 60, can form flco well like this.
If described waste water is acid water quality, then add non-ionic polyacrylamide solution; If described waste water is neutral or alkaline water quality, then add anion-polyacrylamide solution.
If the wastewater temperature of said recovery is higher than 60 degree, then earlier the waste water that reclaims is carried out above-mentioned clean again after overcooling.
The invention has the beneficial effects as follows: treatment process of the present invention is simple; Can the oily substance in the waste water and suspended particle be come along and remove, suspended particle is removed thoroughly clean, and the waste water after the processing can recycle; Save resource, reduced pollution simultaneously environment.
Embodiment
Below in conjunction with embodiment, the present invention is further specified.
A kind of method of handling mechanical oily substance in the waste water is characterized in that realizing through following steps: at first, the adding mass concentration is 5% polymeric aluminum chlorides solution in the waste water that reclaims, and fully stirs; After the suspended matter in the waste water partly condenses, add massfraction again and be 3% polyacrylamide solution, so that the flco of waste water becomes big; Through air floating method, make the flco in the waste water all float on the surface at last, be removed with oily substance again.
Said above order of addition(of ingredients) adds SEPIGEL 305 again for adding Poly aluminum Chloride (PAC) earlier; Directly adding SEPIGEL 305 does not have effect, and this mainly is that elder generation's adding Poly aluminum Chloride (PAC) can not play good effect after generating certain little flco because what effect the flocculating settling of SEPIGEL 305 has to waste water.
The type of said SEPIGEL 305 need be seen water quality and difference, if described waste water is acid water quality, then adds non-ionic polyacrylamide solution; If described waste water is neutral or alkaline water quality, then add anion-polyacrylamide solution.
Because the wastewater temperature after reclaiming can descend to some extent,, then earlier the waste water that reclaims is carried out above-mentioned clean again after overcooling if the wastewater temperature of said recovery is higher than 60 degree.
Embodiment one
Handle 3000 cubic metres the waste water that reclaims.At first, in waste water, adding mass concentration is 5% polymeric aluminum chlorides solution 1X10
5L fully stirs; After partly condensing Deng the suspended matter in the waste water, add massfraction again and be 3% polyacrylamide solution 5X10
4L is so that the flco of waste water becomes big; Through air floating method, make the flco in the waste water all float on the surface at last, be removed with oily substance again.
Embodiment two
Handle 6000 cubic metres the waste water that reclaims.At first, in waste water, adding mass concentration is 5% polymeric aluminum chlorides solution 2X10
5L fully stirs; After partly condensing Deng the suspended matter in the waste water, add massfraction again and be 3% polyacrylamide solution 1X10
5L is so that the flco of waste water becomes big; Through air floating method, make the flco in the waste water all float on the surface at last, be removed with oily substance again.
Handle according to the method described above, obtain not containing in the waste water mechanical oily substance and suspended particle, can the machine choosing recycle, be used for wash-out valve.So both free from environmental pollution, saved resource again.
Claims (4)
1. method of handling mechanical oily substance in the waste water is characterized in that realizing through following steps: at first, in the waste water that reclaims, add mass concentration and be 5% polymeric aluminum chlorides solution, fully stir; After the suspended matter in the waste water partly condenses, add massfraction again and be 3% polyacrylamide solution, so that the flco of waste water becomes big; Through air floating method, make the flco in the waste water all float on the surface at last, be removed with oily substance again.
2. a kind of method of handling mechanical oily substance in the waste water according to claim 1 is characterized in that: the volume ratio of described polymeric aluminum chlorides solution and polyacrylamide solution and waste water is 2: 1: 60.
3. a kind of method of handling mechanical oily substance in the waste water according to claim 1 is characterized in that: if described waste water is acid water quality, then add non-ionic polyacrylamide solution; If described waste water is neutral or alkaline water quality, then add anion-polyacrylamide solution.
4. a kind of method of handling mechanical oily substance in the waste water according to claim 1 is characterized in that: if the wastewater temperature of said recovery is higher than 60 degree, then earlier the waste water that reclaims is carried out above-mentioned clean again after overcooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101329224A CN102786124A (en) | 2011-05-20 | 2011-05-20 | Method for treating machine oil substance in waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101329224A CN102786124A (en) | 2011-05-20 | 2011-05-20 | Method for treating machine oil substance in waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102786124A true CN102786124A (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101329224A Pending CN102786124A (en) | 2011-05-20 | 2011-05-20 | Method for treating machine oil substance in waste water |
Country Status (1)
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| CN (1) | CN102786124A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624393A (en) * | 2020-11-20 | 2021-04-09 | 上海安赐环保科技股份有限公司 | Pretreatment method of oil-containing organic wastewater |
Citations (6)
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| CN1410371A (en) * | 2001-09-29 | 2003-04-16 | 中国石油化工股份有限公司 | Treatment method of spent water from cleaning machinery parts |
| CN101113035A (en) * | 2007-06-22 | 2008-01-30 | 中国石油大学(北京) | Method for treating oil refining sewage by employing multi-stage inflatable cyclonic current technology |
| JP2008264764A (en) * | 2007-03-29 | 2008-11-06 | Jfe Steel Kk | Method for treating oil-containing waste water |
| CN101302065A (en) * | 2008-07-03 | 2008-11-12 | 濮阳市天地人环保工程技术有限公司 | Method for processing oil-gas field fracturing waste liquor |
| CN101475272A (en) * | 2009-01-22 | 2009-07-08 | 武汉钢铁(集团)公司 | Pretreatment process for oily watewater of cold rolling mill |
| JP2010274244A (en) * | 2009-06-01 | 2010-12-09 | Nippon Steel Corp | Method for clarifying treatment of steel production waste water |
-
2011
- 2011-05-20 CN CN2011101329224A patent/CN102786124A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410371A (en) * | 2001-09-29 | 2003-04-16 | 中国石油化工股份有限公司 | Treatment method of spent water from cleaning machinery parts |
| JP2008264764A (en) * | 2007-03-29 | 2008-11-06 | Jfe Steel Kk | Method for treating oil-containing waste water |
| CN101113035A (en) * | 2007-06-22 | 2008-01-30 | 中国石油大学(北京) | Method for treating oil refining sewage by employing multi-stage inflatable cyclonic current technology |
| CN101302065A (en) * | 2008-07-03 | 2008-11-12 | 濮阳市天地人环保工程技术有限公司 | Method for processing oil-gas field fracturing waste liquor |
| CN101475272A (en) * | 2009-01-22 | 2009-07-08 | 武汉钢铁(集团)公司 | Pretreatment process for oily watewater of cold rolling mill |
| JP2010274244A (en) * | 2009-06-01 | 2010-12-09 | Nippon Steel Corp | Method for clarifying treatment of steel production waste water |
Non-Patent Citations (3)
| Title |
|---|
| 吴克明等: "高浓度含油乳化废水的复合絮凝气浮处理", 《化学工程师》 * |
| 姜恒等: "含油废水气浮处理药剂的应用与研究进展", 《工业水处理》 * |
| 尹新等: "溶气气浮法对含油污水处理效果的研究", 《化学工业与工程技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624393A (en) * | 2020-11-20 | 2021-04-09 | 上海安赐环保科技股份有限公司 | Pretreatment method of oil-containing organic wastewater |
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Application publication date: 20121121 |