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A kind of high-efficiency sewage treatment flocculant and preparation method thereof

A sewage treatment and flocculant technology, applied in water/sewage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the problem of destroying the biological chain of water body, slow flocculation and sedimentation speed, and affecting human health and other problems, to achieve the effect of improving the flocculation effect, good flocculation effect and low price

Active Publication Date: 2020-08-11
湖南中测玉成环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inorganic low-molecular-weight flocculants are low in cost, but they have slow flocculation and sedimentation speed and high chemical consumption
Inorganic polymer flocculants have the advantages of good treatment effect and less addition, but this kind of flocculant is easy to cause secondary pollution, which has brought many adverse effects on the ecological environment, and its cost is high, and it can be used at low temperature and low turbidity. Poor processing effect
Organic flocculants have the advantages of small dosage, fast flocculation speed, and good flocculation effect. However, the large-scale use of this type of flocculants will produce polymer residues, high toxicity, and damage the biological chain of water bodies, thereby affecting human health.

Method used

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  • A kind of high-efficiency sewage treatment flocculant and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0030] A preparation method of high-efficiency sewage treatment flocculant, comprising the steps of:

[0031] 1) Vinyl-modified amino-α, β, γ-cyclodextrin: add 30 g of amino-α, β, γ-cyclodextrin to 100 g of ether, and add 20 g of allyl chloride to it, and stir at room temperature After reacting for 6-8 hours, rotary steaming, and then washing the product with ether for 4 times, then rotary steaming to remove ether;

[0032] 2) Preparation of flocculant: 10 g of vinyl-modified amino-α, β, γ-cyclodextrin prepared in step 1), (3-acryloyloxypropyl) tris(trimethylsilyloxy) ) silane (CAS: 17096-12-7) 10g, tris (2-acryloyloxyethyl) isocyanurate (CAS: 40220-08-4) 10g, N-[3-(2-furyl) Acryloyl]-L-phenylalanyl-glycyl-glycine (CAS:64967-39-1) 10g, aluminum-based metal organic framework 1g, benzophenone 0.2g, nonylphenol ethoxylate 0.3g Mix and sonicate for 5 minutes, then put it into the mold, and react under ultraviolet light with a wavelength of 180nm for 42 minutes under nitrogen atm...

Embodiment 2

[0036] A preparation method of high-efficiency sewage treatment flocculant, comprising the steps of:

[0037] 1) Vinyl-modified amino-α, β, γ-cyclodextrin: add 35 g of amino-α, β, γ-cyclodextrin to 120 g of ethyl acetate, and add 23 g of methallyl chloride to it, Stir the reaction at room temperature for 6.5 hours, then spin evaporate, then wash the product with ether for 5 times, and then spin evaporate to remove ether;

[0038]2) Preparation of flocculant: 10 g of vinyl-modified amino-α, β, γ-cyclodextrin prepared in step 1), (3-acryloyloxypropyl) tris(trimethylsilyloxy) ) silane (CAS: 17096-12-7) 10g, tris (2-acryloyloxyethyl) isocyanurate (CAS: 40220-08-4) 10g, N-[3-(2-furyl) Acryloyl]-L-phenylalanyl-glycyl-glycine (CAS: 64967-39-1) 10g, aluminum-based metal organic framework 1.3g, benzoin dimethyl ether 0.3g, polyoxypropylene polyvinylglycerol ether 0.4 g mixed and ultrasonicated for 6 minutes, then put into the mold, and reacted for 45 minutes under ultraviolet light w...

Embodiment 3

[0042] A preparation method of high-efficiency sewage treatment flocculant, comprising the steps of:

[0043] 1) Vinyl-modified amino-α, β, γ-cyclodextrin: add 40 g of amino-α, β, γ-cyclodextrin to 130 g of acetone, and add 25 g of 3-bromo-2-methylpropene to it , stirring and reacting at room temperature for 7 hours, rotary evaporation, and then washing the product with ether for 6 times, and then rotary evaporation to remove ether;

[0044] 2) Preparation of flocculant: 10 g of vinyl-modified amino-α, β, γ-cyclodextrin prepared in step 1), (3-acryloyloxypropyl) tris(trimethylsilyloxy) ) silane (CAS: 17096-12-7) 10g, tris (2-acryloyloxyethyl) isocyanurate (CAS: 40220-08-4) 10g, N-[3-(2-furyl) Acryloyl]-L-phenylalanyl-glycyl-glycine (CAS:64967-39-1) 10g, aluminum-based metal organic framework 1.6g, benzoin ether 0.4g, sodium dodecylbenzenesulfonate 0.45g Mix and sonicate for 8 minutes, put it into the mold, and react for 46 minutes under the atmosphere of neon gas and ultravi...

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Abstract

The invention discloses a preparation method of an efficient sewage treatment flocculant. The preparation method comprises the following steps of 1) modification of amino-alpha, beta, gamma-cyclodextrin with vinyl groups; 2) preparation of the flocculant: mixing vinyl modified amino-alpha, beta, gamma-cyclodextrin, (3-acroloyloxy propyl)tris(trimethylsiloxyl)silane, tris(2-acroloyloxy ethyl)isocyanurate, N-[3-(2-furyl)acryloyl]-L-phenylalanyl-glycyl-glycine, an aluminium based metal organic frame, a photoinitiator and an emulsifier, performing ultrasonic treatment for 5-12mins, then putting the treated mixture in a die, and performing reaction for 42-50mins under ultraviolet light with the wavelength being 180-230nm at the atmosphere of nitrogen or inert gas; and 3) ion exchange. The invention also discloses the efficient sewage treatment flocculant prepared by the preparation method of the efficient sewage treatment flocculant. Compared with the traditional flocculant in the prior art, the efficient sewage treatment flocculant is better in flocculation effect, less in dosage, rapider in flocculation speed, more stable in performance and safer and more environmentally friendly to use.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment and relates to a flocculant, in particular to a high-efficiency sewage treatment flocculant and a preparation method thereof. Background technique [0002] In recent years, with the increasingly prominent problem of water pollution, how to protect water resources has aroused widespread concern. There are two main ways to protect water resources, water conservation and sewage treatment, usually a combination of the two. Among them, sewage treatment is the focus of the current industry, because sewage is a complex mixed dispersion system composed of water and various impurities. In the production process of metallurgy, chemical industry, steel, electronic etching, printing and dyeing, food, pharmaceutical, textile, chemical industry, wastewater concentration, product processing and other industries, a large amount of high-concentration salty and toxic and refractory organic waste water is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52C02F1/50
CPCC02F1/50C02F1/5272
Inventor 王欣欣
Owner 湖南中测玉成环境科技有限公司