CN102976459A - Metallurgical wastewater flocculant - Google Patents
Metallurgical wastewater flocculant Download PDFInfo
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- CN102976459A CN102976459A CN 201210486922 CN201210486922A CN102976459A CN 102976459 A CN102976459 A CN 102976459A CN 201210486922 CN201210486922 CN 201210486922 CN 201210486922 A CN201210486922 A CN 201210486922A CN 102976459 A CN102976459 A CN 102976459A
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- polysilicate
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- flocculation agent
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Abstract
The invention provides a metallurgical wastewater flocculant which comprises the following ingredients in parts by mass: 15-26 parts of polyacrylamide, 10-18 parts of polyacrylate, 7-10 parts of aluminum potassium sulfate, 2-5 parts of natural organic acid and 5-12 parts of polysilicate. According to the metallurgical wastewater flocculant, the natural organic acid is one of oxalic acid, fulvic acid, tannic acid and tartaric acid, and the polysilicate is polysilicate aluminum or polysilicate ferrite.
Description
Technical field
The invention belongs to the water conditioner field, be specifically related to a kind of flocculation agent, relate in particular to a kind of flocculation agent for metallurgical washes.
Background technology
The dust waste water of metallurgical works and coal gas, fume washing water mainly are dust waste waters, non-ferrous metallurgical furnace fume washing water in BF Gas Washing water, open hearth and converter smoke-gas washing, sintering and the coke making process etc.The common feature of this class waste water is that to contain a large amount of suspended substance change of water quality large, and water temperature is higher.One ton of molten iron of every production will be discharged 2 ~ 4 meters wastewaters from blast furnace, and water temperature is generally more than 30 ℃, and suspension content is 600 ~ 3000 mg/litre, mainly is iron ore, coke powder and some oxide compounds.The prussiate and sulfide, phenol, inorganic salt and the metal ions such as zinc, cadmium that also contain severe toxicity in the waste water.Cyanide content is different with ferromanganese because of the refining pig iron, is respectively 0.1 ~ 2 mg/litre and 20 ~ 40 mg/litre.Prussiate available chlorine, chlorinated lime or ozone etc. in the waste water are cyanide oxidation cyanate, also can add ferrous sulfate, make prussiate become nontoxic yellow prussiate; Also available tower biological filter or etc. carry out a biological disposal upon.The BF Gas Washing water water yield is large very uneconomical with aforesaid method processing prussiate, is then to recycle with the settling tank clarified wastewater mostly therefore.Produce special iron, be difficult to sedimentation such as the suspended substance in the blast furnace flue gas washing water of ferromanganese etc., usually will carry out coagulating sedimentation with coagulating agent.Because particle is tiny and the thermal convection of water, the coagulating sedimentation effect is bad separately usually, therefore need to add polymeric flocculant.
Summary of the invention
The invention provides a kind of different metallurgical washes water quality that are applicable to, and most of hazardous contaminant in the metallurgical washes is all had the flocculation agent of good flocculating effect, also have simultaneously certain coagulation effect.
For achieving the above object, the present invention adopts following technical scheme:
A kind of Metallurgical Waste Water flocculation agent, composed of the following components by mass parts:
Among the present invention, described natural organic acids is a kind of in oxalic acid, fulvic acid, Weibull, the tartrate.
Among the present invention, described polysilicate is aluminium silicate polymer or ferric-polysilicate.
Polyacrylamide is straight chain polymer, and because each molecule is to be made of the monomer polymerization more than 100,000, molecular chain is quite long.If it stretches fully, its length is than general molecule (such as sucrose) or ion (such as ca2+) long number more than ten thousand times.Thin because its molecule is long, can be crooked or be curled into irregular curve shape.This long molecular chain stretches out many chemical active radicals: amide group-CONH laterally
2And carboxyl-COO
-Amide group is non-ionic group, but also is good at forming the secondary valence key and with the absorption of the active group of other material and link up.It is thin and many chemical active radicals are arranged because the polyacrylamide amine molecule is long, their can and be connecteds particulate and produce a lot of connections and the larger throw out of formation, the structure of these throw outs is as cotton-wool, loose, amorphous, interlink but not bery firm, there are a lot of spaces and a lot of fine network in inside, containing large quantity of fluid, thereby the proportion of throw out is quite near its existing liquid itself.The various particulates of having gone back network in the throw out, this just gathers together the particulate of various heterogeneities, different properties, different sizes.Because the size of throw out is larger, its sedimentation and filtering all than comparatively fast.
Polymerization silicate has the ion height, soluble in water (fully water-soluble in whole pH value scope, and be not subjected to the impact of low water temperature), not becoming gel, stability to hydrolysis is good, is applicable to the characteristics such as influence that the water quality scope extensively and not is subjected to low water temperature.Be fit to and other flocculation agent compound use very much.
Natural organic acids has certain adsorptive power, can Adsorption of Heavy Metal Ions.
Embodiment
The following examples can make the present invention of those of ordinary skill in the art's comprehend, but do not limit the present invention in any way.
Embodiment 1
A kind of Metallurgical Waste Water flocculation agent, composed of the following components by mass parts:
Among the present invention, described natural organic acids is oxalic acid.
Among the present invention, described polysilicate is aluminium silicate polymer.
Embodiment 2
A kind of Metallurgical Waste Water flocculation agent, composed of the following components by mass parts:
Among the present invention, described natural organic acids is a kind of in the Weibull.
Among the present invention, described polysilicate is ferric-polysilicate.
Embodiment 3
A kind of Metallurgical Waste Water flocculation agent, composed of the following components by mass parts:
Among the present invention, described natural organic acids is a kind of in the tartrate.
Among the present invention, described polysilicate is ferric-polysilicate.
Claims (3)
1. Metallurgical Waste Water flocculation agent is characterized in that by mass parts composed of the following components:
2. flocculation agent according to claim 1 is characterized in that: described natural organic acids is a kind of in oxalic acid, fulvic acid, Weibull, the tartrate.
3. flocculation agent according to claim 1, it is characterized in that: described polysilicate is aluminium silicate polymer or ferric-polysilicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210486922 CN102976459A (en) | 2012-11-26 | 2012-11-26 | Metallurgical wastewater flocculant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210486922 CN102976459A (en) | 2012-11-26 | 2012-11-26 | Metallurgical wastewater flocculant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102976459A true CN102976459A (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201210486922 Pending CN102976459A (en) | 2012-11-26 | 2012-11-26 | Metallurgical wastewater flocculant |
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| CN (1) | CN102976459A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696225A (en) * | 2013-11-27 | 2014-04-02 | 江苏中新资源集团有限公司 | Textile oxygen bleaching stabilizer |
| CN104404256A (en) * | 2014-12-01 | 2015-03-11 | 湖南科技大学 | Green and environment-friendly method for recycling silver in wastewater |
| CN104528903A (en) * | 2014-12-19 | 2015-04-22 | 广东永利坚铝业有限公司 | Flocculating agent for processing industrial wastewater of aluminum material factory and preparation method of flocculating agent |
| CN104556333A (en) * | 2015-01-09 | 2015-04-29 | 黄文辉 | Compound-type flocculant for treating wastewater from aluminum material plant and preparation method thereof |
| CN105860108A (en) * | 2016-04-29 | 2016-08-17 | 天津北洋百川生物技术有限公司 | Method for preparing biomacromolecule gel for efficiently removing hexavalent chromium ions in water |
| CN109607727A (en) * | 2018-12-18 | 2019-04-12 | 安徽建筑大学 | A kind of mixed flocculation agent and preparation method thereof |
| CN110902872A (en) * | 2019-11-05 | 2020-03-24 | 郑州市拓邦环保科技有限责任公司 | Rapid recovery treatment method for plain carbon steel hydrochloric acid pickling waste liquid |
-
2012
- 2012-11-26 CN CN 201210486922 patent/CN102976459A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696225A (en) * | 2013-11-27 | 2014-04-02 | 江苏中新资源集团有限公司 | Textile oxygen bleaching stabilizer |
| CN104404256A (en) * | 2014-12-01 | 2015-03-11 | 湖南科技大学 | Green and environment-friendly method for recycling silver in wastewater |
| CN104528903A (en) * | 2014-12-19 | 2015-04-22 | 广东永利坚铝业有限公司 | Flocculating agent for processing industrial wastewater of aluminum material factory and preparation method of flocculating agent |
| CN104556333A (en) * | 2015-01-09 | 2015-04-29 | 黄文辉 | Compound-type flocculant for treating wastewater from aluminum material plant and preparation method thereof |
| CN105860108A (en) * | 2016-04-29 | 2016-08-17 | 天津北洋百川生物技术有限公司 | Method for preparing biomacromolecule gel for efficiently removing hexavalent chromium ions in water |
| CN109607727A (en) * | 2018-12-18 | 2019-04-12 | 安徽建筑大学 | A kind of mixed flocculation agent and preparation method thereof |
| CN110902872A (en) * | 2019-11-05 | 2020-03-24 | 郑州市拓邦环保科技有限责任公司 | Rapid recovery treatment method for plain carbon steel hydrochloric acid pickling waste liquid |
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Application publication date: 20130320 |