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A kind of sludge chemical deodorization method

A chemical deodorization and sludge technology, applied in the direction of chemical instruments and methods, sludge treatment, oxidation treatment of sludge, etc., can solve the problems of reduced application value, high organic content, perishable odor, etc., to improve application value , high content, strong ability to absorb odor

Active Publication Date: 2021-04-20
JIANGSU FENGYUAN ENVIRONMENTAL TECH ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Sludge is a solid sedimentary substance produced in the process of water and sewage treatment. It is a product of sewage treatment. The main characteristics of mud are high water content, which can be as high as more than 99%, high organic matter content, easy to rot and smell, and the particles are finer, the specific gravity is smaller, and it is in a colloidal liquid state. It is a thick layer between liquid and solid. It can be transported by pump, but it is difficult to separate solid and liquid by sedimentation; most of the sludge also produces odor, which seriously pollutes the environment, which greatly reduces its application value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for chemical deodorization of sludge, comprising:

[0020] First place the sludge to be treated in the regulating tank, then inject water into the regulating tank, adjust the moisture content of the sludge to be treated in the regulating tank, and pump the sludge in the regulating tank into the reaction tank through the first sludge delivery pump, Add ferrate solution to the reaction tank, stir the sludge in the reaction tank, make the sludge in the reaction tank mix with the added ferrate solution, then add quicklime and surfactant to the reaction tank, and continue the stirring reaction Sludge in the tank, the sludge in the reaction tank is mixed with the added quicklime and surfactant, and finally the sludge in the reaction tank is pumped into the dehydration tank through the second sludge pump, and added to the dehydration tank Diatomaceous earth and zeolite, stirring the sludge in the dehydration tank, so that the added diatomaceous earth and zeolite are e...

Embodiment 2

[0030] A method for chemical deodorization of sludge, comprising:

[0031] First place the sludge to be treated in the regulating tank, then inject water into the regulating tank, adjust the moisture content of the sludge to be treated in the regulating tank, and pump the sludge in the regulating tank into the reaction tank through the first sludge delivery pump, Add ferrous sulfate and hydrogen peroxide to the reaction tank, stir the sludge in the reaction tank, make the sludge in the reaction tank react with the added ferrous sulfate and hydrogen peroxide, then add quicklime and surface Active agent, continue to stir the sludge in the reaction tank, make the sludge in the reaction tank mix with the added quicklime and surfactant, and finally pump the sludge in the reaction tank into the dehydration tank through the second sludge delivery pump , add diatomaceous earth and zeolite to the dehydration tank, stir the sludge in the dehydration tank, so that the added diatomite and...

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Abstract

The invention discloses a sludge chemical deodorization method, which comprises firstly placing the sludge to be treated in a regulating tank, then adjusting the water content of the sludge to be treated, pumping the sludge in the regulating tank into a reaction tank, and pumping the sludge into the reaction tank Add ferrate solution in the reaction tank, stir the sludge in the reaction tank, then add quicklime and surfactant to the reaction tank, continue to stir the sludge in the reaction tank, pump the sludge in the reaction tank into the dehydration tank, Add diatomaceous earth and zeolite to the dehydration tank, stir the sludge in the dehydration tank, the sludge is precipitated in the dehydration tank, and the supernatant after precipitation is discharged into the reservoir, dehydrated by the sludge dehydration equipment, and discharged The water is transported to the reservoir, the discharged mud is transported to the mud pool, and the mud transported to the mud pool is taken out and transported away in the mud pool after reaching the specified standing time; the invention effectively improves the deodorization of sludge The effect is to make the sludge be effectively used, reduce the pollution of the sludge to the environment, and improve the application value of the sludge.

Description

technical field [0001] The invention relates to a sludge treatment method, in particular to a sludge chemical deodorization method, which belongs to the technical field of sludge treatment. Background technique [0002] Sludge is a solid sedimentary substance produced in the process of water and sewage treatment. It is a product of sewage treatment. The main characteristics of mud are high water content, which can be as high as 99%, high organic matter content, easy to rot and smell, and the particles are relatively fine, the specific gravity is small, and it is in a colloidal liquid state. It is a thick liquid between liquid and solid. It can be transported by pump, but it is difficult to separate solid and liquid through sedimentation; most of the sludge also produces odor, which seriously pollutes the environment, which greatly reduces its application value. Contents of the invention [0003] In order to solve the deficiencies in the prior art, the present invention pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00C02F11/06C02F11/121C02F11/14
CPCC02F11/00C02F11/06C02F11/12C02F2303/02
Inventor 陈国防
Owner JIANGSU FENGYUAN ENVIRONMENTAL TECH ENG
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