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Flocculating agent for industrial wastewater treatment and preparation process thereof

A technology of industrial wastewater and flocculant, which is applied in water/sewage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc. It can solve the problems of easy degradation of polyacrylamide solution and improve the flocculation effect , Slow down the degradation rate and improve the efficiency

Active Publication Date: 2019-09-10
山丹县东盛净水剂有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that polyacrylamide solution is easy to degrade, the present invention proposes a flocculant for industrial wastewater treatment and its preparation process

Method used

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  • Flocculating agent for industrial wastewater treatment and preparation process thereof
  • Flocculating agent for industrial wastewater treatment and preparation process thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The embodiment of the present invention provides a flocculant for industrial wastewater treatment, and every 100 parts of the flocculant includes the following raw materials in parts by mass: 4 parts of polyacrylamide, 1 part of polyaluminum chloride, alkyldimethyl chloride 0.4 part of benzyl ammonium, 0.5 part of soluble soybean polysaccharide, 0.8 part of soluble starch, 0.3 part of sodium lignosulfonate, and the balance is water.

[0033] The above raw materials are prepared according to the following steps:

[0034] Step 1. Add 1 / 3 of water into the dissolver. The stirring speed of the dissolver is 80 rpm, keep the water temperature at 35°C, and then gradually add polyaluminum chloride and alkyl chloride according to the mass ratio Dimethylbenzyl ammonium, soluble soybean polysaccharide, the sodium lignosulfonate, the whole addition process lasts 15 minutes;

[0035] Step 2. Gradually add polyacrylamide according to the mass ratio, and add another 1 / 3 of water at t...

Embodiment 2

[0038] The embodiment of the present invention provides a flocculant for industrial wastewater treatment, and every 100 parts of the flocculant includes the following raw materials in parts by mass: 2 parts of polyacrylamide, 2 parts of polyaluminum chloride, and alkyldimethyl chloride 0.6 part of benzyl ammonium, 0.3 part of soluble soybean polysaccharide, 0.5 part of soluble starch, 0.2 part of sodium lignosulfonate, and the balance is water.

[0039] The above raw materials are prepared according to the following steps:

[0040]Step 1. Add 1 / 3 of water into the dissolver. The stirring speed of the dissolver is 120 rpm, keep the water temperature at 40°C, and then gradually add polyaluminum chloride and alkyl chloride according to the mass ratio Dimethylbenzyl ammonium, soluble soybean polysaccharide, the sodium lignosulfonate, the whole addition process continued for 10 minutes;

[0041] Step 2. Gradually add polyacrylamide according to the mass ratio, and add another 1 / 3 ...

Embodiment 3

[0044] The embodiment of the present invention provides a flocculant for industrial wastewater treatment, and every 100 parts of the flocculant includes the following raw materials in parts by mass: 6 parts of polyacrylamide, 0.5 part of polyaluminum chloride, alkyldimethyl chloride 0.2 part of benzyl ammonium, 0.8 part of soluble soybean polysaccharide, 1 part of soluble starch, 0.5 part of sodium lignosulfonate, and the balance is water.

[0045] The above raw materials are prepared according to the following steps:

[0046] Step 1. Add 1 / 3 of water into the dissolver. The stirring speed of the dissolver is 50 rpm, keep the water temperature at 30°C, and then gradually add polyaluminum chloride and alkyl chloride according to the mass ratio Dimethylbenzyl ammonium, soluble soybean polysaccharide, the sodium lignosulfonate, the whole addition process continued for 20 minutes;

[0047] Step 2. Gradually add polyacrylamide according to the mass ratio, and add another 1 / 3 of wa...

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Abstract

The invention discloses a flocculating agent for industrial wastewater treatment and a preparation process thereof, and belongs to the technical field of water treatment. The technical scheme is as follows: per 100 parts of the flocculating agent comprise the following raw materials in parts by mass: 2-6 parts of polyacrylamide, 0.5-2 parts of an inorganic polymer, 0.2-0.6 part of an alkyl dimethyl benzyl ammonium chloride, 0.3-0.8 part of a soluble soybean polysaccharide, 0.5-1 part of starch, 0.2-0.5 part of lignosulfonate, and the balance water. The beneficial effects are that the flocculating agent is a multi-component composite flocculating agent, various components synergistically improve flocculation effects on printing and dyeing wastewater, and a degradation rate of polyacrylamideis effectively slowed down, so that the inorganic polymer and polyacrylamide can be used simultaneously, and a process can be simplified and efficiency can be effectively improved by application of the flocculating agent in printing and dyeing wastewater treatment.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a flocculant for industrial wastewater treatment and a preparation process thereof. Background technique [0002] The printing and dyeing industry is a typical water-intensive industry, which consumes nearly 100 million tons of industrial water every year. The pollutant composition of printing and dyeing wastewater is very complex, with the characteristics of large changes in water quality, high content of organic matter, high chroma (mainly colored dyes), etc. Direct discharge will bring great harm to human health and living environment, and at the same time cause waste of water resources . As the country and society pay more and more attention to environmental protection requirements and the requirements for sustainable development, traditional processing methods have become more and more difficult to meet the requirements of production and environmental pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/54C02F1/56C02F101/30
CPCC02F1/5236C02F1/5245C02F1/5263C02F1/54C02F1/56C02F2101/308
Inventor 芦建东陈国盛
Owner 山丹县东盛净水剂有限责任公司