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Preparation method of environment-friendly sewage treatment agent

A sewage treatment agent, an environment-friendly technology, applied in the field of preparation of an environment-friendly sewage treatment agent, can solve the problems of complex preparation methods of treatment agents, secondary pollution, etc., and achieve the effects of wide application range, high removal rate, and simple preparation method

Inactive Publication Date: 2016-05-11
TIANJIN OUPAN TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention aims to propose a method for preparing an environmentally friendly sewage treatment agent to solve the problems that the existing treatment agent preparation method is relatively complicated and easily causes secondary pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] In Example 1, 9 parts of ferrous sulfate, 7 parts of diatomaceous earth, 8 parts of modified sulfonated lignin, 8.5 parts of polymerized ferric chloride, 4 parts of activated carbon, 5 parts of sodium carbonate and 7 parts of cottonseed hulls were added to the grinder , Grind and mix evenly, add 6 parts of activated sludge and 120 parts of water to it while stirring, react for 25 minutes, heat to 35°C, add 7 parts of polyacrylamide while stirring, and react for 1 hour to obtain environmental protection Type sewage treatment agent.

[0014] The environment-friendly sewage treatment agent prepared by the invention has a removal rate of 99.7 percent of suspended matter in sewage after treatment, a removal rate of BOD of 99.0 percent, a removal rate of COD of 98.6 percent, and a chromaticity of 4.

Embodiment 2

[0016] In Example 2, 8 parts of ferrous sulfate, 6 parts of diatomaceous earth, 5 parts of modified sulfonated lignin, 8 parts of polymerized ferric chloride, 3 parts of activated carbon, 4 parts of sodium carbonate and 6 parts of cottonseed hulls were added to the grinder , Grind and mix evenly, add 5 parts of activated sludge and 90 parts of water to it while stirring, react for 20 minutes, heat to 36°C, add 7 parts of polyacrylamide while stirring, react for 2 hours after mixing evenly, and get environmental protection Type sewage treatment agent.

[0017] The environment-friendly sewage treatment agent prepared in Example 2 has a removal rate of 99.2% of suspended solids, a removal rate of BOD of 99.1%, a removal rate of COD of 98.4%, and a chromaticity of 5 after treatment.

Embodiment 3

[0019] In Example 3, 10 parts of ferrous sulfate, 8 parts of diatomaceous earth, 9 parts of modified sulfonated lignin, 9 parts of polymerized ferric chloride, 5 parts of activated carbon, 6 parts of sodium carbonate and 8 parts of cottonseed hulls were added to the grinder , Grind and mix evenly, add 7 parts of activated sludge and 140 parts of water to it while stirring, react for 20 minutes, heat to 38°C, add 8 parts of polyacrylamide while stirring, react for 1 hour after stirring to obtain environmental protection Type sewage treatment agent.

[0020] The environment-friendly sewage treatment agent prepared by the invention has a removal rate of 99.6 percent of suspended matter in the treated sewage, a removal rate of BOD of 98.7 percent, a removal rate of COD of 99.0 percent, and a chromaticity of 5.

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PUM

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Abstract

The invention provides a preparation method of an environment-friendly sewage treatment agent. The preparation method includes: using ferrous sulfate, diatomite, modified lignin sulfonate, polyferric chloride, activated carbon, sodium carbonate, cottonseed hull, polyacrylamide, activated sludge and water as raw materials; adding ferrous sulfate, diatomite, modified lignin sulfonate, polyferric chloride, activated carbon, sodium carbonate and cottonseed hull into a grinder for grinding, mixing well, adding activated sludge and water while stirring, heating to 35-40 DEG C after reaction for 20-30 min, adding polyacrylamide while stirring, and stirring and mixing well for reaction for 1-5 h. The preparation method is simple and free of secondary pollution, and the treatment agent prepared by the method is high in removal rate of BOD, COD and suspended matter in sewage and wide in application range.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to a preparation method of an environment-friendly sewage treatment agent. Background technique [0002] Environmental protection has become a common concern of people. The discharge of industrial wastewater is an important source of environmental pollution. The country has also adopted compulsory measures, such as shutting down, stopping, and transferring coking plants that do not meet the discharge standards. measure. The preparation method of the existing sewage treatment agent is relatively complicated, and the content of BOD, COD, suspended solids, etc. in the treated sewage does not meet the national standard, and the production process consumes a lot of energy and easily causes secondary pollution. Contents of the invention [0003] In view of this, the present invention aims to propose a method for preparing an environment-friendly sewage treatment agent, so as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00
CPCC02F1/00
Inventor 鲍涛
Owner TIANJIN OUPAN TECH DEV CO LTD
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