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Sewage purifying agent for treating electroplating-process wastewater and preparation method thereof

A technology of electroplating process and sewage purification agent, which is applied in the direction of metallurgical wastewater treatment, water/sewage treatment, chemical instruments and methods, etc., can solve the problems of difficult operation of sewage plants, expensive materials, high operating costs of sewage treatment plants, etc., and achieve the improvement of sewage treatment. Purification effect, simple preparation method, good practical effect

Inactive Publication Date: 2017-09-01
CHENGDU ZHENZHONG ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the sewage purifiers commonly used in the physicochemical method are chemical products, and the materials are relatively expensive, resulting in high operating costs for sewage treatment plants and making it difficult to operate sewage plants

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A sewage water purifying agent for treating electroplating process wastewater comprises the following raw materials in parts by weight: 6 parts of alum, 6 parts of soybean lecithin, 3 parts of coconut shell powder, 3 parts of chitosan and 5 parts of carboxymethyl cellulose.

[0028] A kind of preparation method of the sewage purification agent for treating electroplating process wastewater described above may further comprise the steps:

[0029] 1) The soybean powder is pretreated to obtain the puffed material. After the puffed material is mixed with water, the weight mixing ratio of the puffed material and water is 1:100, and 0.5% of the weight of the puffed material is added with alkaline protease, and then heated at a temperature of Heating at 35-45°C for 1-2h, cooling and standing, and then filtering with a microporous membrane to obtain soybean lecithin;

[0030] 2) After mixing the coconut shell powder with water, the weight mixing ratio of coconut shell powder an...

Embodiment 2

[0034] A sewage water purifying agent for treating electroplating process wastewater comprises the following raw materials in parts by weight: 8 parts of alum, 7 parts of soybean lecithin, 5 parts of coconut shell powder, 5 parts of chitosan and 6 parts of carboxymethyl cellulose.

[0035] Above-mentioned a kind of preparation method that is used for processing the sewage purification agent of electroplating process wastewater, comprises the following steps:

[0036] 1) The soybean powder is pretreated to obtain the puffed material. After the puffed material is mixed with water, the weight mixing ratio of the puffed material and water is 1:110, and 0.5% of the weight of the puffed material is added with alkaline protease, and then heated at a temperature of Heating at 35-45°C for 1-2h, cooling and standing, and then filtering with a microporous membrane to obtain soybean lecithin;

[0037] 2) After mixing coconut shell powder with water, the weight mixing ratio of coconut shel...

Embodiment 3

[0041] A sewage purifying agent for treating electroplating wastewater, comprising the following raw materials in parts by weight: 11 parts of alum, 8 parts of soybean lecithin, 9 parts of coconut shell powder, 8 parts of chitosan and 7 parts of carboxymethyl cellulose.

[0042] A kind of preparation method of the sewage purification agent for treating electroplating process wastewater described above may further comprise the steps:

[0043] 1) The soybean powder is pretreated to obtain the puffed material. After the puffed material is mixed with water, the weight mixing ratio of the puffed material and water is 1: 120, and 0.5% of the weight of the puffed material is added with alkaline protease, and then heated at a temperature of Heating at 35-45°C for 1-2h, cooling and standing, and then filtering with a microporous membrane to obtain soybean lecithin;

[0044] 2) After mixing coconut shell powder with water, the weight mixing ratio of coconut shell powder and water is 1: ...

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PUM

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Abstract

The invention relates to the technical field of sewage treatment, and particularly relates to a sewage purifying agent for treating electroplating-process wastewater and a preparation method thereof. The sewage purifying agent for treating the electroplating-process wastewater is prepared from the following raw-material components: alum, soybean lecithin, coconut shell powder, chitosan and carboxymethyl cellulose. The preparation method of the sewage purifying agent for treating the electroplating-process wastewater comprises the following steps of 1), pretreating soybean powder to subsequently obtain a puffed material, mixing the puffed material with water, subsequently, adding alkali protease into an obtained first mixture, afterwards, heating an obtained second mixture for 1h to 2h, enabling the second mixture to cool and stand, and subsequently, filtering the second mixture by using a microporous filtering film, so as to obtain the soybean lecithin; 2), mixing the coconut shell powder with water, subsequently, adding cellulase into an obtained third mixture, afterwards, heating, mixing and agitating an obtained fourth mixture for 20min to 30min, and cooling and standing the fourth mixture for later use; 3), taking and adding the soybean lecithin in the step 1) and a coconut shell powder solution in the step 2) according to a proportion into an agitating machine, then adding the alum, the chitosan and the carboxymethyl cellulose into the agitating machine according to a proportion, and uniformly mixing an obtained fifth mixture to subsequently obtain the sewage purifying agent. By using the sewage purifying agent, an impurity in water can be removed; a secondary pollutant cannot be generated.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage purifying agent for treating electroplating process wastewater and a preparation method thereof. Background technique [0002] With the continuous development of human society, the improvement of urbanization level and industrialization, the shortage of water resources and the aggravation of water pollution have become new global problems that need to be solved urgently. For our country, how to solve the water problem in the modernization construction, It is a very urgent and important issue. The Chinese government has regarded the sustainable utilization of water resources as a strategic issue of economic and social development, emphasizing that water conservation and pollution control are the core parts of the sustainable utilization of water resources and are the key to alleviating the impact of urban water resources in my country. The only way, urban sewage re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F103/16
CPCC02F1/00C02F2103/16
Inventor 王刚胡国波聂海涛
Owner CHENGDU ZHENZHONG ELECTRIC
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