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Paper-making wastewater treatment flocculant and preparation method thereof

A paper-making wastewater and flocculant technology, which is applied in processing wastewater treatment, water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of destroying the biological chain of water body, low flocculation and sedimentation efficiency, and polymer residue. Achieve low equipment dependence, improve flocculation effect, and good effect

Inactive Publication Date: 2018-12-14
NINGBO DIYANG ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prepared flocculant for papermaking wastewater treatment overcomes the more or less existing inorganic flocculants in the prior art, such as low flocculation and sedimentation efficiency, high chemical consumption, easy to cause secondary pollution, and poor treatment effect at low temperature and low turbidity Defects
At the same time, it also overcomes the technical problems that the large-scale use of organic flocculants in the prior art will produce polymer residues, is highly toxic, and destroys the biological chain of water bodies, thereby affecting human health. It has low cost, high flocculation and sedimentation efficiency, and good effect. Less dosage, less impact on the environment, safe and green to use

Method used

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  • Paper-making wastewater treatment flocculant and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A flocculant for treating papermaking wastewater is prepared from the following components in parts by weight: 40 parts of adamantyl ferrocene polyamide, 10 parts of surface-modified polymerized aluminum iron silicate, and 10 parts of modified starch.

[0029] The adamantyl ferrocene polyamide is prepared from 1,3,5,7-tetrakis(4-aminophenyl)adamantane and 1,1'-dicarboxyferrocene through polycondensation reaction.

[0030] The preparation method of the adamantyl ferrocene polyamide comprises the following steps: 18.4 g of 1,3,5,7-tetrakis(4-aminophenyl)adamantane, 1,1'-dicarboxyferrocene Dissolve 10g of iron in 50g of dimethyl sulfoxide, react at 70°C for 0.5h at normal pressure, and react at 100°C for 1h, then add 2g of 1-ethyl-(3-dimethylaminopropyl)carbodiimide hydrochloride , 6g of 4-dimethylaminopyridine, heated to 130°C, primary polycondensation reaction for 3h, then the reaction solution was transferred to the reactor, vacuumed (500Pa), heated to 220°C, and then p...

Embodiment 2

[0037] A flocculant for treating papermaking wastewater is prepared from the following components in parts by weight: 43 parts of adamantyl ferrocene polyamide, 13 parts of surface-modified polyaluminum iron silicate and 12 parts of modified starch.

[0038] The adamantyl ferrocene polyamide is prepared from 1,3,5,7-tetrakis(4-aminophenyl)adamantane and 1,1'-dicarboxyferrocene through polycondensation reaction.

[0039] The preparation method of the adamantyl ferrocene polyamide comprises the following steps: 18.4 g of 1,3,5,7-tetrakis(4-aminophenyl)adamantane, 1,1'-dicarboxyferrocene Dissolve 10g of iron in 60g of N,N-dimethylformamide, react at 73°C for 0.7h at normal pressure, and react at 104°C for 1.2h, then add 1-ethyl-(3-dimethylaminopropyl)carbodiene Imine hydrochloride 2.5g, 4-dimethylaminopyridine 6g, heat up to 135°C, conduct primary polycondensation reaction for 3.3h, then transfer the reaction liquid into the reaction kettle, vacuumize (500Pa), heat to 223°C, and ...

Embodiment 3

[0046] A flocculant for treating papermaking wastewater is prepared from the following components in parts by weight: 45 parts of adamantyl ferrocene polyamide, 15 parts of surface-modified polymerized aluminum iron silicate, and 13 parts of modified starch.

[0047] The adamantyl ferrocene polyamide is prepared from 1,3,5,7-tetrakis(4-aminophenyl)adamantane and 1,1'-dicarboxyferrocene through polycondensation reaction.

[0048] The preparation method of the adamantyl ferrocene polyamide comprises the following steps: 18.4 g of 1,3,5,7-tetrakis(4-aminophenyl)adamantane, 1,1'-dicarboxyferrocene Dissolve 10g of iron in 70g of N-methylpyrrolidone, react at 77°C for 0.8h at normal pressure, and 1.6h at 107°C, then add 1-ethyl-(3-dimethylaminopropyl)carbodiimide hydrochloride Salt 3g, 4-dimethylaminopyridine 6g, temperature raised to 140°C, primary polycondensation reaction for 3.6h, then the reaction solution was transferred to the reaction kettle, vacuumed (500Pa), heated to 225°...

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Abstract

The invention provides a paper-making wastewater treatment flocculant which is prepared from the following components in parts by weight: 40-50 parts of adamantly ferrocene type polyamide, 10-20 partsof surface modified poly-aluminum silicate and 10-15 parts of modified starch, wherein the adamantly ferrocene type polyamide is prepared from 1,3,5,7-tert(4-aminophenyl) adamantane and 1,1'-dicarboxyl ferrocene through a condensation polymerization reaction. The invention further discloses a preparation method of the paper-making wastewater treatment flocculant. The preparation method comprisesthe following steps: uniformly mixing the adamantly ferrocene type polyamide, the surface modified poly-aluminum silicate and the modified starch, carrying out superfine crushing, and screening till 150-250 meshes, thereby obtaining the paper-making wastewater treatment flocculant. The paper-making wastewater treatment flocculant provided by the invention has the advantages of being low in cost, high in flocculent precipitation efficiency, good in effect, small in amount, small in environment influence and safe, green and environmentally friendly in use.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a flocculant for papermaking wastewater and a preparation method thereof. Background technique [0002] In recent years, with the advancement of global industrialization, the problem of water pollution caused by traditional industries such as papermaking has become increasingly serious, threatening human health. All countries in the world have also introduced relevant laws and regulations to limit the discharge of industrial wastewater. Therefore, papermaking wastewater treatment has become a major problem that papermaking companies must face. This problem will restrict the development of enterprises and even affect the entire papermaking industry. development of. [0003] The flocculation treatment of papermaking wastewater is one of the key links in the treatment of papermaking wastewater. It can remove turbidity and pollution, and reduce the pollution load of sub...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/56C02F103/28
CPCC02F1/5236C02F1/56C02F2103/28
Inventor 不公告发明人
Owner NINGBO DIYANG ELECTRONICS TECH
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