Formula for deep dehydration of sludge and operation method of formula

An operation method and sludge technology, applied in dewatering/drying/concentrating sludge treatment, application, household appliances, etc., can solve the problems of incineration facility safety, flue gas disposal and atmospheric environmental protection impact, etc., to improve dehydration performance, The effect of accelerating the dehydration process

Inactive Publication Date: 2016-02-17
ZHEJIANG JIEFENG ENVIRONMENTAL PROTECTION TECH ENG COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These have a serious impact on the safety of incineration facilities, flue gas disposal and atmospheric environmental protection during sludge incineration and incineration for power generation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Preparation of auxiliary materials:

[0046] The amount of sludge to be treated is 100 tons (about 100 cubic meters), and the moisture content of the sludge is 87%. Add medicaments: 0.5 tons of polyaluminum chloride, 0.01 tons of sodium hypochlorite and 0.2 tons of diatomite mineral powder;

[0047] (2) Preliminary configuration of sludge:

[0048] Sludge with a water content of 80% after being treated by a filter press in a sewage treatment plant is added to the sludge receiving tank and diluted with water to form a sludge slurry with a water content of 90% to meet the requirements of mechanical transportation and stirring. Requirements, and can be most suitable for the follow-up process, and then under the action of the mud pump, it is lifted to the quenching and tempering tank through the delivery pipeline for follow-up operations;

[0049] (3), sludge conditioning treatment:

[0050] ①. After step (2), start the agitation of the sludge conditioning tank, and a...

Embodiment 2

[0061] (1) Preparation of auxiliary materials:

[0062] Coagulation and sedimentation agent, bactericidal deodorant, modified skeleton agent;

[0063]The coagulation-settling agent is polyaluminum chloride; the bactericidal deodorant is sodium hypochlorite; the modified skeleton agent is diatomite mineral powder;

[0064] (2) Preliminary configuration of sludge:

[0065] Sludge with a water content of 85% after being treated by a filter press in a sewage treatment plant is added to the sludge receiving tank and diluted with water to form a sludge slurry with a water content of 92% to meet the requirements of mechanical transportation and stirring. Requirements, and can be most suitable for the follow-up process, and then under the action of the mud pump, it is lifted to the quenching and tempering tank through the delivery pipeline for follow-up operations;

[0066] (3), sludge conditioning treatment:

[0067] ①. After step (2), start the agitation of the sludge conditionin...

Embodiment 3

[0078] (1) Preparation of auxiliary materials:

[0079] Coagulation and sedimentation agent, bactericidal deodorant, modified skeleton agent;

[0080] The coagulation-settling agent is polyaluminum chloride; the bactericidal deodorant is sodium hypochlorite; the modified skeleton agent is diatomite mineral powder;

[0081] (2) Preliminary configuration of sludge:

[0082] Sludge with a water content of 87% after being treated by a filter press in a sewage treatment plant is added to the sludge receiving tank and diluted with water to form a sludge slurry with a water content of 94% to meet the requirements of mechanical transportation and stirring Requirements, and can be most suitable for the follow-up process, and then under the action of the mud pump, it is lifted to the quenching and tempering tank through the delivery pipeline for follow-up operations;

[0083] (3), sludge conditioning treatment:

[0084] ①. After step (2), start the agitation of the sludge conditionin...

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Abstract

The invention relates to deep dehydration of sludge, in particular to a formula for deep degradation of sludge and an operation method of the formula. The formula comprises steps as follows: preparation of auxiliary materials, primary treatment of the sludge, thermal refining of the sewage, mechanical filter pressing and backflow of filtrate. According to the formula for deep dehydration of the sludge and the operation method of the formula, continuous treatment can be performed, the treatment efficiency is improved, energy is saved, consumption is reduced, the controllability is high, and recycling is realized.

Description

technical field [0001] The invention relates to highly dewatered sludge, in particular to a formula for highly dehydrated sludge and an operation method thereof. Background technique [0002] The so-called sludge generally refers to the terminal waste of sewage treatment. These sludges contain a large number of microorganisms and pathogens, emit foul smell, and some also contain heavy metals, and the water content is as high as 95%. After simple treatment by the sewage treatment plant, the water content The rate is still as high as 85%. For these sludges, most of these sludges were treated by landfill in the past, but as time went by, this treatment method gradually exposed a series of problems such as covering a large area, causing secondary pollution, and incomplete treatment. my country's general policy of "reduction, safety, and resource utilization" for sludge treatment and disposal, with the domestic emphasis on environmental protection and the improvement of environme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12C04B33/132
CPCY02P40/60
Inventor 应国庆应健威
Owner ZHEJIANG JIEFENG ENVIRONMENTAL PROTECTION TECH ENG COMPANY
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