CN102745787A - Fast flocculating agent and its preparation method - Google Patents
Fast flocculating agent and its preparation method Download PDFInfo
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- CN102745787A CN102745787A CN2012102189697A CN201210218969A CN102745787A CN 102745787 A CN102745787 A CN 102745787A CN 2012102189697 A CN2012102189697 A CN 2012102189697A CN 201210218969 A CN201210218969 A CN 201210218969A CN 102745787 A CN102745787 A CN 102745787A
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- flocculating agent
- blast furnace
- heavy pond
- slag
- pond mud
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Abstract
The invention discloses a fast flocculating agent and its preparation method. The flocculating agent comprises the following chemical components by weight: 75-85% of mixed sedimentation tank sludge, 5-15% of blast furnace slag powder, 2-10% of aluminium ammonium sulfate, 2-10% of polymeric ferric sulfate and 1-2% of an additive. According to the preparation method of the invention, the aluminium ammonium sulfate, the polymeric ferric sulfate, the mixed sedimentation tank sludge, and the blast furnace slag powder are successively stirred in proportion under the condition of 80-200r/min so as to obtain the fast flocculating agent. The flocculating agent of the invention is composed of the mixed sedimentation tank sludge and the blast furnace slag powder, the surface of which has great activity and can speed up flocculation, thus reaching the purpose of fast flocculation and realizing resource utilization and high value-added utilization of solid waste.
Description
Technical field
The invention belongs to field of waste water treatment, refer to a kind of quick flocculating agent and preparation method thereof particularly.
Background technology
Existing Treatment of Industrial Water flocculation agent comprises broad varietys such as inorganic flocculating agent and organic-flocculation machine; Its cardinal principle is through the chemical reagent that flocculating properties is arranged impurity such as colloidalmaterial in the waste water and suspended substance to be assembled, thereby reaches the effect that staticizes water body.Its cost is high, and flocculation time length is to influence the bottleneck of flocculation agent in wastewater treatment.Mud in the mixed heavy pond of wastewater treatment simultaneously never has the approach of recycling, carries out landfill as waste always.Therefore utilize mixed heavy pond mud to make waste water flocculant and will solve above-mentioned two problems well.
At present; Publication number has been reported a kind of sludge dewatering composite flocculant for the CN101348318A Chinese invention patent; Publication number has been reported another kind of flocculation agent and the mud dewatering method that is used for sludge dewatering for the CN101367597A Chinese invention patent; The patent of these flocculation agents mainly is to extract through industry byproduct to be processed into polyaluminium sulfate or bodied ferric sulfate; Its ultimata still makes sorbent material through various chemical reactions from raw material, makes ferro element or aluminium element obtain recycle in the process and solve at all how to follow to utilize at flocculation agent.
Summary of the invention
The objective of the invention is provides a kind of quick flocculating agent and preparation method thereof to above-mentioned deficiency, and this flocculation agent can make flocculation accelerate, thereby reaches the purpose of rapid flocculation, realizes recycling of solid wastes utilization and high value added utilization.
For solving the problems of the technologies described above; A kind of quick flocculating agent that the present invention designed is characterized in that: the chemical ingredients of said flocculation agent percentage ratio is by weight formed by 75 ~ 85% mixed heavy pond mud, 5 ~ 15% blast furnace ground-slags, 2 ~ 10% Tai-Ace S 150 ammonia, 2 ~ 10% bodied ferric sulfates and 1 ~ 2% additive combination than meter.Mix heavy pond mud and mainly come from the mixed heavy pond that adds flocculation agent, in mixing heavy pond, suspended substance and flocculation agent in the waste water flocculate; Acquire a certain degree to flocculation, will produce deposition because of action of gravity, a large amount of aggregated floc just produce and mix heavy pond mud in the mixed heavy pond; Mix in the mud of heavy pond and comprise the diatoms material; Ferric iron compound, trivalent aluminum compound and silicon compound, this type material is for mixing the raw material sources of heavy pond mud as quick flocculating agent.
Further, said additive is semi-coke powder and silicon-dioxide by weight 1: 1 ~ 3 mixture.
Again further, the granularity of said semi-coke powder and silicon-dioxide is 20 ~ 100nm.
Again further, said granularity of mixing heavy pond mud and blast furnace ground-slag is 200 ~ 300 orders.
The preparation method of above-mentioned quick flocculating agent may further comprise the steps:
1) will mix heavy pond mud and blast furnace ground-slag and be placed on 600 ~ 700 ℃ of baking 2 ~ 3h down;
2) fine grinding becomes 200 ~ 300 purpose fine powders with the blast furnace ground-slag with the heavy pond mud that mixes of baking gained in the step 1), and the percentage ratio ratio is got 75 ~ 85% and mixed that to sink pond mud and 5 ~ 15% blast furnace ground-slags subsequent use by weight;
3) the percentage ratio ratio is got 2 ~ 10% Tai-Ace S 150 ammonia and 2 ~ 10% bodied ferric sulfates and 1 ~ 2% additive and is mixed by weight;
4) stir 5 ~ 10min, the mixture that obtains stirring with obtaining mixture in the step 3) with 80 ~ 200r/min;
5) again with step 2) mixed heavy pond mud is got by middle institute and the blast furnace ground-slag joins in the step 4) gained mixture, continues then to stir 30 ~ 60min with 80 ~ 200r/min, promptly obtains quick flocculating agent.
As preferred version, in the said step 3), additive is that semi-coke powder and silicon-dioxide are by weight the mixture that is 1: 1 ~ 3.The granularity of said semi-coke powder and silicon-dioxide is 20 ~ 100nm.
Advantage of the present invention:
1, flocculation agent of the present invention is formed by mixing heavy pond mud and blast furnace ground-slag, and blast furnace ground-slag surface has bigger activity, and flocculation is accelerated, thereby reaches the purpose of rapid flocculation, realizes recycling of solid wastes utilization and high value added utilization;
2, low production cost of the present invention.Flocculation agent preparation technology is simple, through obtaining flocculation agent after fine grinding, the stirring; And the flocculation agent raw material is mainly and mixes heavy pond mud and blast furnace ground-slag composition, because production cost is low
3, the wide spectrum rapidity of flocculation agent of the present invention can realize the rapid flocculation deposition of multiple colloid or suspended substance in the various wastewater.Because the mud that mixes in the heavy pond in the flocculation agent contains a large amount of Al
3+And Fe
3+, reduce cost for wastewater treatment, and can not form secondary pollution.Such ion is forming a large amount of colloidal materials with pollutants in waste water.
4, the main effect of Tai-Ace S 150 ammonia and bodied ferric sulfate is to replenish flocculation agent Fe and Al loss in use among the present invention.
5, raw material of the present invention can recycle, and the throw out of the flocculation agent of this invention after use can return raw material and use, and makes the mud that mixes in the heavy pond form closed loop cycle and uses.
Embodiment
In order to explain the present invention better, further illustrate main contents of the present invention below in conjunction with specific embodiment, but content of the present invention not only is confined to following examples.
Embodiment 1
1) will mix heavy pond mud and blast furnace ground-slag and be placed on 600 ℃ of baking 3h down;
2) fine grinding becomes 200 purpose fine powders with the blast furnace ground-slag with the heavy pond mud that mixes that toasts in the step 1), and the percentage ratio ratio is got 75% and mixed that to sink pond mud and 12% blast furnace ground-slag subsequent use by weight;
3) the percentage ratio ratio is got 10% Tai-Ace S 150 ammonia, 2% bodied ferric sulfate and 1% additive and is mixed by weight, wherein additive be semi-coke powder and silicon-dioxide by weight the mixture that is 1: 1, the granularity of semi-coke powder and silicon-dioxide is 100nm;
4) stir 5min with obtaining mixture in the step 3) with 200r/min, the mixture that obtains stirring;
5) again with step 2) mixed heavy pond mud is got by middle institute and the blast furnace ground-slag joins in the step 4) gained mixture, continues then to stir 60min with 80r/min, promptly obtains quick flocculating agent.
The quick flocculating agent that makes is handled trade effluent, in 1L waste water, add the flocculation agent of 1g, waste water COD is reduced to 68mg/L by 118mg/L, and ss suspended solid is reduced to 65mg/L by 185mg/L.
Embodiment 2
1) will mix heavy pond mud and blast furnace ground-slag and be placed on 700 ℃ of baking 2h down;
2) fine grinding becomes 300 purpose fine powders with the blast furnace ground-slag with the heavy pond mud that mixes that toasts in the step 1), and the percentage ratio ratio is got 80% and mixed that to sink pond mud and 5% blast furnace ground-slag subsequent use by weight;
3) the percentage ratio ratio is got 2% Tai-Ace S 150 ammonia, 10% bodied ferric sulfate and 2% additive and is mixed by weight, wherein additive be semi-coke powder and silicon-dioxide by weight the mixture that is 1: 3, the granularity of semi-coke powder and silicon-dioxide is 20nm;
4) stir 10min with obtaining mixture in the step 3) with 80r/min, the mixture that obtains stirring;
5) again with step 2) mixed heavy pond mud is got by middle institute and the blast furnace ground-slag joins in the step 4) gained mixture, continues then to stir 30min with 200r/min, promptly obtains quick flocculating agent.
The quick flocculating agent that makes is handled trade effluent, in 1L waste water, add the flocculation agent of 1g, waste water COD is reduced to 60mg/L by 126mg/L, and ss suspended solid is reduced to 72mg/L by 165mg/L.
Embodiment 3
1) will mix heavy pond mud and blast furnace ground-slag and be placed on 650 ℃ of baking 3h down;
2) fine grinding becomes 250 purpose fine powders with the blast furnace ground-slag with the heavy pond mud that mixes that toasts in the step 1), and the percentage ratio ratio is got 75% and mixed that to sink pond mud and 9% blast furnace ground-slag subsequent use by weight;
3) the percentage ratio ratio is got 7% Tai-Ace S 150 ammonia, 8% bodied ferric sulfate and 1% additive and is mixed by weight, wherein additive be semi-coke powder and silicon-dioxide by weight the mixture that is 1: 2, the granularity of semi-coke powder and silicon-dioxide is respectively 50nm and 80nm;
4) stir 8min with obtaining mixture in the step 3) with 100r/min, the mixture that obtains stirring;
5) again with step 2) mixed heavy pond mud is got by middle institute and the blast furnace ground-slag joins in the step 4) gained mixture, continues then to stir 40min with 100r/min, promptly obtains quick flocculating agent.
The quick flocculating agent that makes is handled trade effluent, in 1L waste water, add the flocculation agent of 1g, waste water COD is reduced to 59mg/L by 110mg/L, and ss suspended solid is reduced to 70mg/L by 138mg/L.
Embodiment 4
1) will mix heavy pond mud and blast furnace ground-slag and be placed on 700 ℃ of baking 3h down;
2) fine grinding becomes 200 purpose fine powders with the blast furnace ground-slag with the heavy pond mud that mixes that toasts in the step 1); By weight the percentage ratio ratio get 85% mix heavy pond mud and 5% blast furnace ground-slag subsequent use;
3) the percentage ratio ratio is got 5% Tai-Ace S 150 ammonia, 4% bodied ferric sulfate and 1% additive and is mixed by weight, wherein additive be semi-coke powder and silicon-dioxide by weight the mixture that is 1: 2, the granularity of semi-coke powder and silicon-dioxide is respectively 60nm and 60nm;
4) stir 8min with obtaining mixture in the step 3) with 100r/min; The mixture that obtains stirring;
5) again with step 2) in obtain mixing heavy pond mud and blast furnace ground-slag and carefully get 75% and mix heavy pond mud and 15% blast furnace ground-slag by percentage ratio ratio by weight, add in the mixture of step 4), continue then promptly to obtain being quick flocculating agent with 100r/min stirring 60min.5) again with step 2) mixed heavy pond mud is got by middle institute and the blast furnace ground-slag joins in the step 4) gained mixture, continues then to stir 60min with 100r/min, promptly obtains quick flocculating agent.
The quick flocculating agent that makes is handled trade effluent, in 1L waste water, add the flocculation agent of 1g, waste water COD is reduced to 66mg/L by 105mg/L, and ss suspended solid is reduced to 72mg/L by 165mg/L.
Claims (7)
1. quick flocculating agent is characterized in that: the chemical ingredients of said flocculation agent percentage ratio is by weight mixed heavy pond mud, 5 ~ 15% blast furnace ground-slags, 2 ~ 10% Tai-Ace S 150 ammonia, 2 ~ 10% bodied ferric sulfates and 1 ~ 2% additive combinations than meter by 75 ~ 85% and is formed.
2. quick flocculating agent according to claim 1 is characterized in that: said additive is that semi-coke powder and silicon-dioxide are by weight the mixture that is 1: 1 ~ 3.
3. quick flocculating agent according to claim 2 is characterized in that: the granularity of said semi-coke powder and silicon-dioxide is 20 ~ 100nm.
4. quick flocculating agent according to claim 1 is characterized in that: said granularity of mixing heavy pond mud and blast furnace ground-slag is 200 ~ 300 orders.
5. the preparation method of the described quick flocculating agent of claim 1 may further comprise the steps:
1) will mix heavy pond mud and blast furnace ground-slag and be placed on 600 ~ 700 ℃ of baking 2 ~ 3h down;
2) fine grinding becomes 200 ~ 300 purpose fine powders with the blast furnace ground-slag with the heavy pond mud that mixes that toasts gained in the step 1); By weight the percentage ratio ratio get 75 ~ 85% mix heavy pond mud and 5 ~ 15% blast furnace ground-slags subsequent use;
3) the percentage ratio ratio is got 2 ~ 10% Tai-Ace S 150 ammonia and 2 ~ 10% bodied ferric sulfates and 1 ~ 2% additive and is mixed by weight;
4) stir 5 ~ 10min, the mixture that obtains stirring with obtaining mixture in the step 3) with 80 ~ 200r/min;
5) again with step 2) mixed heavy pond mud is got by middle institute and the blast furnace ground-slag joins in the step 4) gained mixture, continues then to stir 30 ~ 60min with 80 ~ 200r/min, promptly obtains quick flocculating agent.
6. the preparation method of quick flocculating agent according to claim 5 is characterized in that: in the said step 3), additive is that semi-coke powder and silicon-dioxide are by weight the mixture that is 1: 1 ~ 3.
7. the preparation method of quick flocculating agent according to claim 6, it is characterized in that: the granularity of said semi-coke powder and silicon-dioxide is 20 ~ 100nm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210218969.7A CN102745787B (en) | 2012-06-29 | 2012-06-29 | Fast flocculating agent and its preparation method |
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| CN102745787A true CN102745787A (en) | 2012-10-24 |
| CN102745787B CN102745787B (en) | 2014-01-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310553A (en) * | 2014-10-31 | 2015-01-28 | 武汉钢铁(集团)公司 | Resource utilization method of blast furnace dust |
| CN104326619A (en) * | 2014-10-08 | 2015-02-04 | 环境保护部南京环境科学研究所 | A<2>/O process based simultaneous nitrogen and phosphorus removal and algae reduction treatment system and method |
| CN106517466A (en) * | 2016-12-10 | 2017-03-22 | 钦州学院 | Quick flocculant and preparing method thereof |
| CN106589242A (en) * | 2016-12-10 | 2017-04-26 | 钦州学院 | Structure-modified flocculant and preparation method therefor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2931766B2 (en) * | 1994-12-15 | 1999-08-09 | 株式会社環研 | Aggregating hydrophobic agent |
| CN1227192A (en) * | 1998-02-24 | 1999-09-01 | 曾兆祥 | Compound coagulant for waste water treatment and its usage |
| CN101397154A (en) * | 2007-09-27 | 2009-04-01 | 中国科学院过程工程研究所 | Water treatment agent prepared by blast furnace slag and preparation method thereof |
| JP2009172555A (en) * | 2008-01-28 | 2009-08-06 | Tech Corporation:Kk | Flocculant |
| CN101786751A (en) * | 2010-03-05 | 2010-07-28 | 泉州师范学院 | Emergency repair process for treating pollution of natural water body emulsified oil |
-
2012
- 2012-06-29 CN CN201210218969.7A patent/CN102745787B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2931766B2 (en) * | 1994-12-15 | 1999-08-09 | 株式会社環研 | Aggregating hydrophobic agent |
| CN1227192A (en) * | 1998-02-24 | 1999-09-01 | 曾兆祥 | Compound coagulant for waste water treatment and its usage |
| CN101397154A (en) * | 2007-09-27 | 2009-04-01 | 中国科学院过程工程研究所 | Water treatment agent prepared by blast furnace slag and preparation method thereof |
| JP2009172555A (en) * | 2008-01-28 | 2009-08-06 | Tech Corporation:Kk | Flocculant |
| CN101786751A (en) * | 2010-03-05 | 2010-07-28 | 泉州师范学院 | Emergency repair process for treating pollution of natural water body emulsified oil |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104326619A (en) * | 2014-10-08 | 2015-02-04 | 环境保护部南京环境科学研究所 | A<2>/O process based simultaneous nitrogen and phosphorus removal and algae reduction treatment system and method |
| CN104326619B (en) * | 2014-10-08 | 2017-05-24 | 环境保护部南京环境科学研究所 | A2/O process based simultaneous nitrogen and phosphorus removal and algae reduction treatment system and method |
| CN104310553A (en) * | 2014-10-31 | 2015-01-28 | 武汉钢铁(集团)公司 | Resource utilization method of blast furnace dust |
| CN106517466A (en) * | 2016-12-10 | 2017-03-22 | 钦州学院 | Quick flocculant and preparing method thereof |
| CN106589242A (en) * | 2016-12-10 | 2017-04-26 | 钦州学院 | Structure-modified flocculant and preparation method therefor |
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| CN102745787B (en) | 2014-01-01 |
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Granted publication date: 20140101 Termination date: 20170629 |