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Method for treating city sewage

A technology of urban sewage and treatment methods, applied in the directions of water/sewage treatment, light water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problems such as the gap in sewage treatment technology, and achieve a technology suitable for large-scale industrial application. Simple and practical effect

Inactive Publication Date: 2016-10-12
陈昌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

my country is one of the countries that lack water resources in the world. The development of water quality and water treatment technology has made great progress, and has made great contributions to environmental protection and water conservation. However, the current sewage treatment technology and development There is still a large gap between countries

Method used

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  • Method for treating city sewage

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Effect test

Embodiment 1

[0022] (1) Prepare a composite sewage treatment agent, the specific formula is: 3 parts of corn starch-acrylamide graft copolymer, 5 parts of carboxymethyl chitosan, 3 parts of soybean protein extract, 6 parts of ferric chloride, ethoxy 5 parts of quinoline, 3 parts of benzoyl peroxide, 4 parts of sodium cyclamate, 5 parts of polylactic acid, 4 parts of butyl p-hydroxybenzoate, 6 parts of hydroxyethylidene diphosphonic acid, licorice extract 5-parts, 2 parts of allantoin;

[0023] (2) Add a compound sewage treatment agent with a mass ratio of 0.7% to urban sewage, and mechanically stir for 20 minutes to obtain pretreated urban sewage;

[0024] (3) Ultrasonic treatment was performed on the obtained pretreated urban sewage, the ultrasonic power was 1650w, the ultrasonic time was 45 minutes, and then stood for 25 minutes, and filtered to obtain the sewage clarified liquid;

[0025] (4) Pass the sewage clarified liquid through the D113 cation exchange resin, the mass ratio of the...

Embodiment 2

[0031] (1) Prepare a compound sewage treatment agent, the specific formula is: 5 parts of corn starch-acrylamide graft copolymer, 7 parts of carboxymethyl chitosan, 6 parts of soybean protein extract, 8 parts of ferric chloride, ethoxy 6 parts of quinoline, 5 parts of benzoyl peroxide, 7 parts of sodium cyclamate, 8 parts of polylactic acid, 5 parts of butyl p-hydroxybenzoate, 9 parts of hydroxyethylidene diphosphonic acid, licorice extract 6 parts, 4 parts of allantoin;

[0032] (2) Add a compound sewage treatment agent with a mass ratio of 0.7% to urban sewage, and mechanically stir for 22 minutes to obtain pretreated urban sewage;

[0033] (3) Ultrasonic treatment was performed on the obtained pretreated urban sewage, the ultrasonic power was 1650w, the ultrasonic time was 45 minutes, and then stood for 25 minutes, and filtered to obtain the sewage clarified liquid;

[0034] (4) Pass the sewage clarified liquid through the D113 cation exchange resin, the mass ratio of the ...

Embodiment 3

[0040] (1) Prepare a compound sewage treatment agent, the specific formula is: 7 parts of corn starch-acrylamide graft copolymer, 10 parts of carboxymethyl chitosan, 9 parts of soybean protein extract, 13 parts of ferric chloride, B 8 parts of oxyquinoline, 11 parts of benzoyl peroxide, 13 parts of sodium cyclamate, 10 parts of polylactic acid, 7 parts of butyl paraben, 14 parts of hydroxyethylidene diphosphonic acid, licorice extract 7 parts, 8 parts of allantoin;

[0041] (2) Add a compound sewage treatment agent with a mass ratio of 0.7% to urban sewage, and mechanically stir for 24 minutes to obtain pretreated urban sewage;

[0042] (3) Ultrasonic treatment was performed on the obtained pretreated urban sewage, the ultrasonic power was 1650w, the ultrasonic time was 45min, and then stood for 25 minutes, and filtered to obtain the sewage clarified liquid;

[0043] (4) Pass the sewage clarified liquid through the D113 cation exchange resin, the mass ratio of the sample amou...

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Abstract

The invention discloses a method for treating urban sewage, which comprises corn starch-acrylamide graft copolymer, carboxymethyl chitosan, soybean protein extract, ferric chloride, ethoxyquinoline, and benzyl peroxide Acyl, sodium cyclamate, polylactic acid, butyl p-hydroxybenzoate, hydroxyethylidene diphosphonic acid, licorice extract, allantoin as the compound sewage treatment agent and sewage stirring reaction, after ultrasonic treatment, The ion exchange column is eluted through the column, the flocculant is stirred and flocculated and precipitated, the flocculation supernatant is passed through the column adsorption resin, membrane filter is filtered, sterilized, and the treated water of the discharge standard is obtained. The method has high sewage treatment efficiency, and the discharged treated water can reach the national standard. At the same time, the process is simple and easy, the operability is strong, and it has no pollution to the environment, which can meet the requirements of the industry and has a good application prospect.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a treatment method for urban sewage. Background technique [0002] Water is the source of life and the most precious resource in nature. The protection, utilization and treatment of water resources is one of the hottest topics in the world today. Therefore, international research on water quality and water treatment technology is developing rapidly, and pollution from industrial wastewater and domestic wastewater is also a major problem facing the country. . my country is one of the countries that lack water resources in the world. The development of water quality and water treatment technology has made great progress, and has made great contributions to environmental protection and water conservation. However, the current sewage treatment technology and development There is still a large gap between countries. At present, the domestic water treatment technology and wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08
CPCC02F9/00C02F1/001C02F1/285C02F1/32C02F1/36C02F1/42C02F1/44C02F1/5236C02F1/5263C02F1/54C02F1/56C02F1/62C02F2001/425C02F2301/08C02F2303/04
Inventor 陈昌
Owner 陈昌
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