CN100363079C - Flocculant for sewage treatment - Google Patents
Flocculant for sewage treatment Download PDFInfo
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- CN100363079C CN100363079C CNB200410024420XA CN200410024420A CN100363079C CN 100363079 C CN100363079 C CN 100363079C CN B200410024420X A CNB200410024420X A CN B200410024420XA CN 200410024420 A CN200410024420 A CN 200410024420A CN 100363079 C CN100363079 C CN 100363079C
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- nanometers
- sewage
- sea water
- flocculant
- seawater
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Abstract
The present invention relates to a novel flocculant for treating sewage. The present invention is characterized in that the novel flocculant is composed of the ingredients of the following proportion by weight percentages: 98 to 99.5% of one or two of sea water, underground brine and bittern after salt preparation from seawater, 0.03 to 1% of one or two of poly-ferric sulfate, polyaluminium chloride and a mixture of poly-ferric sulfate and polyaluminium chloride, 0.03 to 1% of one or two of silicon dioxide with the diameter of 2 nanometers to 100 nanometers, smectite, kaolin clay and talcum powder. The present invention has the advantages that the sea water, the underground brine and the brine after the salt preparation from sea water contains nanometer dimensional particles, such as calcium carbonate, magnesium carbonate, etc., and trace elements; the novel flocculant can change the potential of treated sewage, the flocculating speed is high, and the flocculating effect is good; nutrient salt which is provided to microorganisms is favorable for the growth of the microorganisms in biological sludge; the price of treating sewage is low; in addition, the silicon dioxide with the diameter of 2 nanometers to 100 nanometers, the smectite, the kaolin clay and the talcum powder can increase the adsorption capacity to harmful substances, and the flocculating effect is good.
Description
Technical field
The present invention relates to a kind of sewage treatment flocculating agent.
Background technology
Commercially available sewage treatment flocculating agent has the polyiron sulfate aqueous solution, poly aluminum chloride aqueous solution or polyiron sulfate and polyaluminium chloride mixed aqueous solution etc., and its shortcoming is on the high side, causes the sewage disposal expense too high.
Summary of the invention
The purpose of this invention is to provide a kind of sewage treatment flocculating agent, it can overcome the above-mentioned shortcoming of prior art.
A kind of sewage treatment flocculating agent, it is characterized in that by in the bittern behind seawater, subsurface brine, the preparing salt by working up seawater one or both, in the polyiron sulfate, polyaluminium chloride one or both, in the silica of 2-100 nanometer, montmorillonite, kaolin, talcum powder one or both are formed, the percetage by weight scope ratio of each component is 98-99.5: 0.03-1: 0.03-1.
Advantage of the present invention is the trace element in particles such as calcium carbonate that nano-scale is arranged in the bittern behind seawater, subsurface brine, the preparing salt by working up seawater, magnesium carbonate and the seawater, it can change processed sewage current potential, flocculation rate is faster than existing flocculant, its flocculating effect is better than existing flocculant, and provide nutritive salt for microorganism, help the growth of microorganism in the biological sludge, and the price of disposing of sewage is low.In addition, the silica of 2-100 nanometer, montmorillonite, kaolin, talcum powder can also increase the adsorption capacity to harmful substance in the sewage, and flocculating effect is better than existing flocculant.
The specific embodiment
Embodiment 1: the montmorillonite of 99Kg seawater, 0.5kg polyiron sulfate, 0.5kg20 nanometer is stirred, join in 1 ton of city domestic sewage, stirred 1 minute, left standstill 5 minutes, its flocculation time is than containing 0.5Kg polyiron sulfate and 0.5Kg polyaluminium chloride mixed aqueous solution fast 1 minute with 100Kg, after 48 hours, the total nitrogen of the experimental group of disposing of sewage with this flocculant is reduced to 160mg/l by 195mg/l; And the control experiment group is about to the mixed aqueous solution that 100KG contains 0.5Kg polyiron sulfate and 0.5Kg polyaluminium chloride join in 1 ton of city domestic sewage, stirs 1 minute, leaves standstill 5 minutes, and 48 afterwards hour, surveys its total nitrogen and reduce to 175mg/l by 195mg/l; After 48 hours in the sewage of experimental group total phosphorus reduce to 0.05mg/l by 0.203mg/l; The total phosphorus of control experiment group is reduced to 0.150mg/l by 0.203mg/l.
Embodiment 2: with the kaolin of the bittern behind the 99.4Kg preparing salt by working up seawater, 0.5kg polyaluminium chloride, 0.05kg 20 nano silicons and 0.05Kg50 nanometer, stir, join in 1 ton of chromium plating wastewater, stirred 1 minute, left standstill 45 minutes, and surveyed the content of 6 valency chromium in this experimental group sewage and reduce to 0.50mg/l by 320mg/l.The control experiment group: the aqueous solution that 100kg is contained the 0.5kg polyaluminium chloride joins in 1 ton of chromium plating wastewater, stirs 1 minute, leaves standstill 45 minutes, surveys the content of 6 valency chromium in the waste water and reduces to 64mg/l by 320mg/l.
Embodiment 3: with the talcum powder of the bittern behind the 50kg preparing salt by working up seawater and 48.9kg subsurface brine, 0.7kg poly aluminium sulfate, 0.4kg 7 nanometers, stir, be added in 1 ton of food sewage, stirred 1 minute, left standstill 45 minutes, this experimental group COD of sewage mean value drops to 166mg/l by 21897mg/l; And control group is added to the aqueous solution that 100Kg contains the 0.5kg polyiron sulfate in 1 ton of food sewage, stirs 1 minute, leaves standstill 45 minutes, and COD of sewage mean value drops to 542mg/l by 21897mg/l; The mean value of experimental group sewage BOD5 drops to 98mg/l by 11464mg/l; And the mean value of control group sewage BOD5 drops to 249mg/l by 11464mg/l.
Claims (1)
1. sewage treatment flocculating agent, it is characterized in that by in the bittern behind seawater, subsurface brine, the preparing salt by working up seawater one or both, in the polyiron sulfate, polyaluminium chloride one or both, in the silica of 2-100 nanometer, montmorillonite, kaolin, talcum powder one or both are formed, the percetage by weight scope ratio of each component is 98-99.5: 0.03-1: 0.03-1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410024420XA CN100363079C (en) | 2004-06-25 | 2004-06-25 | Flocculant for sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410024420XA CN100363079C (en) | 2004-06-25 | 2004-06-25 | Flocculant for sewage treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1594127A CN1594127A (en) | 2005-03-16 |
| CN100363079C true CN100363079C (en) | 2008-01-23 |
Family
ID=34663494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410024420XA Expired - Fee Related CN100363079C (en) | 2004-06-25 | 2004-06-25 | Flocculant for sewage treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100363079C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101618900B (en) * | 2009-08-10 | 2011-02-09 | 浙江商达水务有限公司 | Inorganic flocculating agent for treating waste water during carpet production |
| CN101857352A (en) * | 2010-06-13 | 2010-10-13 | 东南大学 | Conditioning coagulant for deep dehydrating sludge |
| CN102180537A (en) * | 2011-04-01 | 2011-09-14 | 广东工业大学 | Preparation method and application of composite nano displacer for complexing heavy metal |
| CN103818991A (en) * | 2012-11-16 | 2014-05-28 | 季爱英 | Flocculating agent for food wastewater |
| CN104478050B (en) * | 2014-12-01 | 2016-08-31 | 郑州大学 | A kind of preparation method and applications of the improved PFS for processing industrial wastewater |
| CN105906014A (en) * | 2016-06-20 | 2016-08-31 | 江门市江海区炜洁净水材料有限公司 | Production technology for polymeric aluminum magnesium water purifying agent and water purifying method |
| CN106669845A (en) * | 2016-12-14 | 2017-05-17 | 钦州学院 | Waste water treatment catalyst and preparation method thereof |
| CN111946278A (en) * | 2020-08-19 | 2020-11-17 | 中国地质科学院探矿工艺研究所 | Harmless treatment method for geological core drilling waste flushing fluid |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6283011A (en) * | 1985-10-07 | 1987-04-16 | Agency Of Ind Science & Technol | Sedimentation agent |
| CN1085192A (en) * | 1992-09-29 | 1994-04-13 | 赵永新 | The preparation of high-efficiency compound water purifying agent and application thereof |
| CN1112905A (en) * | 1995-06-09 | 1995-12-06 | 杰-普罗塞斯厄斯有限公司 | Magnesium ion containing flocculating agents for waste water treatment and method for preparation thereof |
| JP2003112004A (en) * | 2001-10-03 | 2003-04-15 | Yoshiro Wakimura | Flocculation method |
-
2004
- 2004-06-25 CN CNB200410024420XA patent/CN100363079C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6283011A (en) * | 1985-10-07 | 1987-04-16 | Agency Of Ind Science & Technol | Sedimentation agent |
| CN1085192A (en) * | 1992-09-29 | 1994-04-13 | 赵永新 | The preparation of high-efficiency compound water purifying agent and application thereof |
| CN1112905A (en) * | 1995-06-09 | 1995-12-06 | 杰-普罗塞斯厄斯有限公司 | Magnesium ion containing flocculating agents for waste water treatment and method for preparation thereof |
| JP2003112004A (en) * | 2001-10-03 | 2003-04-15 | Yoshiro Wakimura | Flocculation method |
Non-Patent Citations (1)
| Title |
|---|
| 海水主要电解质和pH对微量金属和腐殖酸絮凝的影响. 李飞永等.热带海洋，第1期. 1988 * |
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| Publication number | Publication date |
|---|---|
| CN1594127A (en) | 2005-03-16 |
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