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A kind of multi-effect water treatment agent and its preparation method and water treatment method

A water treatment agent, acrylamide technology, applied in water/sewage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the problems of unsatisfactory flocculation effect and single source of raw water, etc. Achieving a wide range of excellent adsorption properties, strong decolorization ability, and a wide range of applications

Active Publication Date: 2017-09-29
ANHUI HUANGHE WATER RESOURCE POLYTRON TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The present invention aims to provide a multi-effect water treatment agent and its preparation method, and provide a multi-effect water treatment agent that uses the multi-effect water treatment agent in order to solve the technical problems of single raw water source and unsatisfactory flocculation effect of the compound water treatment agent in the prior art. The water treatment method of water treatment agent, realizes the high-efficiency reuse of water treatment agent through the backflow technology of lower layer water, reduces the production cost and improves the water treatment efficiency

Method used

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  • A kind of multi-effect water treatment agent and its preparation method and water treatment method
  • A kind of multi-effect water treatment agent and its preparation method and water treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0047] (1) Carboxylation of graphene oxide

[0048] Add sodium hydroxide and chloroacetic acid to 5 mg / mL graphene oxide aqueous solution, graphene oxide aqueous solution: sodium hydroxide: chloroacetic acid = 1L: 2g: 2g, mix and react for 4 hours, separate and wash to obtain carboxylated oxidation Graphene;

[0049] (2) Acrylamide oligomer grafted graphene oxide

[0050] Mix graphene oxide and acrylamide oligomer in DMSO, and add EDCI, wherein, DMSO:graphene oxide:acrylamide oligomer:EDCI=1L:8g:90g:50g. Reflux reaction at 45°C, separation and washing to obtain acrylamide oligomer grafted graphene oxide;

[0051] (3) Preparation of multi-effect water treatment agent

[0052] Mix acrylamide oligomer grafted graphene oxide, polyacrylamide, and polydimethyldiallyl ammonium chloride in proportion above 45°C and cool down to room temperature naturally, then add polyaluminum iron silicate, carbonic acid Sodium hydrogen, mix well.

[0053] The parts by weight of each component are...

Embodiment 1-2

[0055] Example 1-2: In this example, the preparation process of the multi-effect water treatment agent is the same as Example 1-1, only the ratio of each component is adjusted.

[0056] The parts by weight of each component are as follows: acrylamide oligomer grafted graphene oxide 8, polyacrylamide 35, polyaluminum iron silicate 35, polydimethyldiallylammonium chloride 20, sodium bicarbonate 5 .

Embodiment 1-3

[0057] Example 1-3. In this example, the preparation process of the multi-effect water treatment agent is the same as in Example 1-1, only the ratio of each component is adjusted.

[0058] The parts by weight of each component are as follows: acrylamide oligomer grafted graphene oxide 6, polyacrylamide 40, polyaluminum iron silicate 30, polydimethyldiallylammonium chloride 25, sodium bicarbonate 5 .

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Abstract

The invention relates to a multi-effect water treatment agent, a preparation method thereof and a water treatment method. The multi-effect water treatment agent is prepared from acrylamide oligomer grafting graphene oxide, polyacrylamide, polysilicate aluminum ferrite, poly(diallyl dimethyl ammonium chloride) and sodium bicarbonate, wherein the acrylamide oligomer grafting graphene oxide is prepared by two steps of graphene oxide carboxylation and grafting reaction. The multiple-effect water treatment agent can adapt to multiple complex water qualities, and particularly can effectively remove benzene compounds and heavy metal ions. The water treatment method comprises stages of mixing, preliminary flocculation, secondary flocculation and filtering; the efficient utilization of the water treatment agent is realized by using a lower water backflow step, and the production cost is lowered.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a multi-effect water treatment agent, a preparation method thereof and a water treatment method using the multi-effect water treatment agent. Background technique [0002] In the field of water treatment, flocculation and sedimentation is a commonly used treatment method, which has the advantages of simple operation, low cost and good treatment effect. The mechanism of flocculation is generally considered to be the compression of the electric double layer and charge neutralization, the adsorption and bridging of polymer water treatment agents, and the sweeping and sedimentation of flocs. The process of flocculation is the process in which colloidal particles lose their stability, and colloidal substances and small suspended particles aggregate into larger particles, which are easy to settle down from the liquid. Adding water treatment agent can accelerate this process, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52C02F1/54C02F1/56
CPCC02F1/00C02F1/001C02F1/283C02F1/288C02F1/5236C02F1/5245C02F1/54C02F1/56C02F2101/20C02F2101/32
Inventor 何业俊李晓霞常勤峰高秀久
Owner ANHUI HUANGHE WATER RESOURCE POLYTRON TECH INC
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