CN102583682B - Novel chelate flocculant - Google Patents
Novel chelate flocculant Download PDFInfo
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- CN102583682B CN102583682B CN201210038474.6A CN201210038474A CN102583682B CN 102583682 B CN102583682 B CN 102583682B CN 201210038474 A CN201210038474 A CN 201210038474A CN 102583682 B CN102583682 B CN 102583682B
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- flocculant
- flocculating agent
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- chitosan
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Abstract
The invention relates to a novel chelate flocculant. The preparation method of the novel chelate flocculant comprises the following steps of: rejuvenating an EM (effective microorganisms) fungi liquid, preparing a chitosan solution, and mixing the EM fungi liquid, the chitosan solution and a PAM (polyacrylamide) chelate flocculant according to the volume ratio of 3:3:(10-15). The novel chelate flocculant provided by the invention has the advantages of high flocculation ratio and lower cost, and saves dosage of a PAM flocculant, and avoids secondary environment pollution generated by an inorganic flocculent and effectively reduces heavy metal ion content in water bodies.
Description
Technical field
The invention belongs to chelated flocculating agent technical field, particularly relate to the preparation method of the composite production composite flocculant of microbial flocculant and chitosan flocculant.
Background technology
In the time of modern industry high speed development, also environment is caused pollution, especially heavy metal the pollution of water body has been caused to serious threat to the mankind's health and lives, and greatly degree infringement agriculture, woods, herd, the development of the industry such as fishing.Heavy metal as discharged with waste water even if concentration is little, also can accumulate in algae and bed mud, by the body surface of fish and shellfish, is adsorbed, and produces food chain concentrated, thus the public hazards of causing.As Japanese minamata disease, exactly because contain mercury in the waste water of caustic soda process industry discharge, what cause after biological action becomes organic mercury; Itai-itai is and for example due to the cadmium being discharged by zinc metallurgy industry and cadmium electroplating industry.
At present for the flocculation agent of water treatment field conventional be to take the inorganic flocculating agent that iron system, aluminium system and polymkeric substance thereof be representative, they rely in its use procedure, and flocculating effect is good and cost is low is used widely, in aluminium based flocculating agent, aluminum ion has caused senile dementia, in iron-based flocculating agent, iron ion has corrosive nature to metal, easily cause process after in water with color, increase sludge treatment and meet.
The novel third generation flocculation agent of current numerous scholar expert's development research: microbial flocculant, such flocculation agent has advantages of efficiently, cheap, nontoxic, non-secondary pollution.Biological flocculant is typical environmentally friendly functional materials, adapts to the theory of contemporary Sustainable development, and HUMAN HEALTH and environment protection are had to very important realistic meaning.But in Development and Production process, there are numerous difficult problems.The bacterial strain of this flocculation agent is conventionally filled in choosing and is obtained from active sludge, soil, waste water, is single bacterial strain mostly, has limited to a great extent applying of microbial flocculant.Different microorganisms flocculation agent is produced in addition all needs corresponding substratum, makes cost higher.
Tegument chitosan flocculant has good flocculating effect to the heavy metal in sewage.Chitosan is the product of chitin deacetylase base.Chitin can extract acquisition from shrimp and crab shells, is can be in production-goods source.Chitin content is on earth only second to cellulosic output, greatly about 1010 tons～1011 tons, but because this resource major part of a variety of causes is wasted.
Summary of the invention
The object of the invention is for traditional flocculant have that cost is high, efficiency is low, the defect such as toxic, corrodibility, the novel flocculant of proposition.The novel flocculant that this method is produced, has high flocculating rate, adding less, effectively reduces Heavy Metals in Waters ion content.
The present invention uses chitosan flocculant, and chitosan has good adsorption to heavy metal ion, can remove Zn
2+, Cu
2+, Cd
2+, Ag
+, Cr
3+, Ni
2+, Hg
2+, Pb
2+etc. heavy metal ion.
The rejuvenation of EM bacterium liquid, gets 3%～5%EM, 3%～5% honey and 90%～94% deionized water and mixes, and mixed solution packs in flask airtight, in constant incubator as for 25 ℃ of temperature, cultivate, after 5 hours, pH value drops to below 4.0, has alcohol fragrance, just thinks that rejuvenation cultivates successfully.
The preparation of chitosan solution: chitosan is dissolved in acetum, obtains 1% chitosan solution.
PAM chelated flocculating agent: PAM is dissolved in to the PAM chelated flocculating agent that obtains 10mg/L in deionized water.
Novel chelate flocculant: EM bacterium liquid, chitosan solution and PAM chelated flocculating agent are mixed with the ratio of volume ratio 3: 3: 10～15.
The preparation method of Novel chelate flocculant provided by the invention, has avoided the process of single culture screening and culturing, has reduced cost, has saved the dosage of PAM flocculation agent, has prevented the secondary pollution that inorganic flocculating agent produces environment.The applicable temperature range of this flocculation agent is wide 15 degrees Celsius～and 45 ℃, applicable pH is 3～6, removes the Hg in water
2+, Cd
2+, Cu
2+, Cr
3+etc. contents of many kinds of heavy metal ion 93%～87%.
Embodiment
The present invention has adopted SPX-250B-Z constant incubator.
The deionized water that the present invention adopts is the deionized water of processing with high pressure steam sterilization, and treatment condition are at 121 ℃, under the condition of pressure 0.105Mpa, maintain 20min～30min.
Embodiment 1
The rejuvenation of EM bacterium liquid, EM, honey and deionized water mix according to (volume ratio) at 5: 5: 90, and mixed solution 100ml packs in 150ml flask airtight, the constant incubator that is placed in 25 ℃ of temperature is cultivated, after 5 hours, pH value drops to below 4.0, has alcohol fragrance, just thinks that rejuvenation cultivates successfully.
The preparation of chitosan solution: take 1g chitosan and be placed in beaker, add 50ml deionized water, add while stirring 1% acetum, chitosan is all dissolved, be finally mixed with 1% chitosan solution.
PAM chelated flocculating agent: PAM is dissolved in to the PAM chelated flocculating agent that obtains 10mg/L in deionized water.
Novel chelate flocculant: EM bacterium liquid, chitosan solution and PAM chelated flocculating agent are mixed with the volume ratio ratio of 3: 3: 10.
Preparation is containing Pb
2+the aqueous solution of 50mg/L is as experiment lead waste water.Get lead waste water 250ml in 300m1 beaker, add 5g～7g kaolin and 2.5ml Novel chelate flocculant, keeping water sample pH value is 6, then be placed on six stirrers and stir 10min under 90r/min hydraulics, make its reaction of chelating lead ion flocculation sediment, after standing 20min, get apart from the supernatant liquor at topmost surface 3cm place and measure lead content, find that clearance is in 90% left and right.In water, adding kaolin is that kaolin does not have removal Pb in order to accelerate flocculation settling velocity
2+effect.
Claims (3)
1. a preparation method for the chelated flocculating agent of processing for sewage and waste water, is characterized in that its preparation process and working conditions:
The rejuvenation of A.EM bacterium liquid, EM, honey and deionized water mix according to volume ratio at 5: 5: 90, and mixed solution 100ml packs in 150ml flask airtight, be positioned in the constant incubator of 25 ℃ of temperature and cultivate, after 5 hours, pH value is down to below 4.0, has alcohol fragrance, just thinks that rejuvenation cultivates successfully;
B. chelated flocculating agent preparation: EM bacterium liquid, chitosan solution and PAM chelated flocculating agent are mixed with the ratio of volume ratio 3: 3: 10～15.
2. the preparation method of a kind of chelated flocculating agent of processing for sewage and waste water as claimed in claim 1, it is characterized in that: in step B, the compound method of chitosan solution is placed in beaker for taking 1g chitosan, add 50ml deionized water, adding while stirring volume percent is 1% acetum, chitosan is all dissolved, be finally mixed with 1% chitosan solution.
3. the preparation method of a kind of chelated flocculating agent of processing for sewage and waste water as claimed in claim 1, is characterized in that: in step B, the compound method of PAM chelated flocculating agent is for to be dissolved in by PAM the PAM chelated flocculating agent that obtains 10mg/L in deionized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210038474.6A CN102583682B (en) | 2012-02-21 | 2012-02-21 | Novel chelate flocculant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210038474.6A CN102583682B (en) | 2012-02-21 | 2012-02-21 | Novel chelate flocculant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102583682A CN102583682A (en) | 2012-07-18 |
| CN102583682B true CN102583682B (en) | 2014-09-03 |
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|---|---|---|---|
| CN201210038474.6A Active CN102583682B (en) | 2012-02-21 | 2012-02-21 | Novel chelate flocculant |
Country Status (1)
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104193010A (en) * | 2014-08-25 | 2014-12-10 | 闫安男 | Microbial composite flocculant |
| CN108793587B (en) * | 2018-05-30 | 2021-07-02 | 北京六凯农业科技有限公司 | Rapid treatment method for pig farm urine-soaked manure waste liquid |
| CN113511926A (en) * | 2021-04-28 | 2021-10-19 | 新至农业生态科技有限公司 | Method for comprehensively utilizing livestock and poultry manure resources and returning to field |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19544455A1 (en) * | 1995-11-29 | 1997-06-05 | Henkel Kgaa | Biological treatment of waste water |
| CN102010108A (en) * | 2010-10-08 | 2011-04-13 | 聊城金太阳生物化工有限公司 | Industrial sludge treatment method and method for preparing various fertilizers by using treated industrial sludge |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60197299A (en) * | 1984-03-16 | 1985-10-05 | Sanyo Chem Ind Ltd | Dehydration assistant and method |
-
2012
- 2012-02-21 CN CN201210038474.6A patent/CN102583682B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19544455A1 (en) * | 1995-11-29 | 1997-06-05 | Henkel Kgaa | Biological treatment of waste water |
| CN102010108A (en) * | 2010-10-08 | 2011-04-13 | 聊城金太阳生物化工有限公司 | Industrial sludge treatment method and method for preparing various fertilizers by using treated industrial sludge |
Non-Patent Citations (2)
| Title |
|---|
| JP昭60-197299A 1985.10.05 |
| 国向云.EM的絮凝特性试验研究.《中国优秀硕士学位论文全文数据库（工程科技I辑）》.2005,(第2期),第35-51页. * |
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|---|---|
| CN102583682A (en) | 2012-07-18 |
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Address after: 300467, Tianjin, Tianjin new eco city road, creative building, building 5, seven floor Patentee after: Tianjin Ecology City Environmental Protection Co., Ltd. Patentee after: TIANJIN XINSHENG ENVIRONMENT DEVELOPMENT CO., LTD. Address before: 300467, Tianjin, Tianjin new eco city road, creative building, building 5, seven floor Patentee before: Tianjin Ecology City Environmental Protection Co., Ltd. Patentee before: Tianjin Ecology City Water Co.,Ltd. |