CN101913691B - Method for preparing natural flocculating agent used for purifying water - Google Patents
Method for preparing natural flocculating agent used for purifying water Download PDFInfo
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- CN101913691B CN101913691B CN2010102599118A CN201010259911A CN101913691B CN 101913691 B CN101913691 B CN 101913691B CN 2010102599118 A CN2010102599118 A CN 2010102599118A CN 201010259911 A CN201010259911 A CN 201010259911A CN 101913691 B CN101913691 B CN 101913691B
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- flocculating agent
- water
- cinnamomvine
- natural flocculating
- natural
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Abstract
The invention discloses a method for preparing a natural flocculating agent used for purifying water. The method comprises the following steps of: peeling and chopping cinnamomvine; adding the cinnamomvine into water of which the weight is 20 to 100 times that of the cinnamomvine; stirring for 2 to 3 hours at the temperature of between 10 and 40 DEG C; adding a small amount of sulfuric acid into the water to regulate the pH value to be 4 to 6; standing for 1 to 2 hours; and filtering out solid residue to obtain solution, namely the natural flocculating agent. By directly using edible cinnamomvine as a raw material for preparing the water treatment flocculating agent, the natural flocculating agent has the advantages of simple preparation method, readily available and cheap raw material, high performance price ratio, no toxicity, easy degradation and no secondary pollution, and is a real environmental-friendly flocculating agent.
Description
Technical field
The present invention relates to technical field of sewage in the environment protection, relate in particular to the preparation method of the flocculation agent that is used for drink water purifying.
Background technology
Being defined as of flocculation agent: every being used for all is called flocculation agent with the solute in the aqueous solution, colloid or the sedimentary material of suspended particle generation floss.In an aqueous solution, use two or more material to be called composite flocculation agent.For example, use aluminum chloride and Vestolen PP 7052 phthalein amine to handle certain waste water simultaneously, make it produce the floss deposition, thereby reach the purpose of purifying liquid waste, just can aluminum chloride and Vestolen PP 7052 phthalein amine be referred to as composite flocculation agent.
According to the composition of flocculation agent, can it be divided into inorganic flocculating agent and organic floculant.According to their relative molecular masses height, can it be divided into low molecule and polymer two big classes; If, can be types such as nonionic, negatively charged ion, positively charged ion and both sexes also with it by its functional group's charged character in disassociation back.
The natural macromolecule modification flocculation agent can be divided into modified starch series flocculation agent, modified guar class flocculation agent, XG 550 and modified product thereof, CMC 99.5 (sodium) and modified product thereof, sodium-alginate, modified lignin resin class flocculation agent, vegatable tannin and modified product and F691 powder modified product etc. according to raw-material difference.But these flocculation agents all need pass through chemical reactions such as a series of chemosynthesis such as the copolymerization effective flocculation agent that just can be applied, and cost performance is low and have a secondary pollution.
Summary of the invention
The objective of the invention is for overcoming the deficiency of prior art, a kind of water purifying natural flocculating agent and preparation method thereof that is used for is provided, high, nontoxic, the non-secondary pollution of this flocculation agent cost performance is green flocculation agent.
The technical scheme that the present invention adopts is to adopt following steps: earlier Chinese yam is removed the peel; Chopping adds Chinese yam in the water that weight is 20～100 times of Chinese yams, stirs 2～3h down at 10～40 ℃; Add the small amount of sulfur acid for adjusting pH again to 4-6; Leave standstill 1～2h, filter out solid slag at last after, gained solution is natural flocculating agent.
The present invention directly uses edible Chinese yam as the feedstock production water treatment flocculant, and the preparation method is simple, material is easy to get cheapness, high, nontoxic, the easy degraded of cost performance, non-secondary pollution, is real green flocculation agent.
Embodiment
The present invention is earlier with after Chinese yam peeling, the chopping; To remove the peel, it is in the water of 20～100 times of Chinese yam weight that the Chinese yam of chopping adds weight again, then after stirring 2～3h under 10～40 ℃; Add a spot of sulfuric acid again and regulate pH to 4-6; Leave standstill 1～2h, filter out solid slag at last after, gained solution is natural flocculating agent.
Embodiment 1
With the peeling of 500g Chinese yam, chopping, it is in the 10kg water that Chinese yam is added weight, stirs 2h down at 10 ℃, adds small amount of sulfur acid for adjusting pH to 4, leaves standstill 1h, filters out solid slag, obtains clarifying natural flocculating agent.
At volume is 500mL, and concentration is to drip the natural flocculating agent 5mL that obtains in the kaolin suspension liquid of 40g/L, stirs 3min fast; Stir 4min at a slow speed, can observe alumen ustum formation and become big, kaolin is by sedimentation rapidly; It is clear that water becomes, and turbidity is 5NTU, and purifying water effect is good.
Embodiment 2
With the peeling of 500g Chinese yam, chopping, it is in the 50kg water that Chinese yam is added weight, stirs 3h down at 40 ℃, adds small amount of sulfur acid for adjusting pH to 6, leaves standstill 2h, filters out solid slag, obtains clarifying natural flocculating agent.
At volume is 500mL, and concentration is to drip the natural flocculating agent 8mL that obtains in the kaolin suspension liquid of 30g/L, stirs 3min fast; Stir 4min at a slow speed, can observe alumen ustum formation and become big, kaolin is by sedimentation rapidly; It is clear that water becomes, and turbidity is 7NTU, and purifying water effect is good.
Claims (1)
1. preparation method who is used for the water purifying natural flocculating agent is characterized in that adopting following steps:
1) with the Chinese yam peeling, chopping adds Chinese yam in the water that weight is 20～100 times of Chinese yams, stirs 2～3h down at 10～40 ℃;
2) add sulfuric acid and regulate pH to 4-6, leave standstill 1～2h;
3) filter out solid slag after, gained solution is natural flocculating agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102599118A CN101913691B (en) | 2010-08-20 | 2010-08-20 | Method for preparing natural flocculating agent used for purifying water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102599118A CN101913691B (en) | 2010-08-20 | 2010-08-20 | Method for preparing natural flocculating agent used for purifying water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101913691A CN101913691A (en) | 2010-12-15 |
| CN101913691B true CN101913691B (en) | 2012-05-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102599118A Expired - Fee Related CN101913691B (en) | 2010-08-20 | 2010-08-20 | Method for preparing natural flocculating agent used for purifying water |
Country Status (1)
| Country | Link |
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| CN (1) | CN101913691B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103951022A (en) * | 2013-09-03 | 2014-07-30 | 嘉善绿野环保材料厂(普通合伙) | Multielement polyphosphate ferric chloride coagulant and preparation method thereof |
| CN115893621B (en) * | 2022-12-06 | 2023-08-08 | 山东珺宜环保科技有限公司 | Composite plant water purifying agent and preparation method and application thereof |
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2010
- 2010-08-20 CN CN2010102599118A patent/CN101913691B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101913691A (en) | 2010-12-15 |
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Address after: 213016 Baiyun District, Changzhou, Jiangsu Patentee after: Changzhou University Address before: Gehu Lake Road Wujin District 213164 Jiangsu city of Changzhou province No. 1 Patentee before: Changzhou University |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20150820 |
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