River sludge treatment method

A treatment method and river sludge technology, applied in sludge treatment, biological sludge treatment, water/sludge/sewage treatment, etc., can solve the problems of secondary utilization of unfavorable resources, incomplete removal of harmful heavy metals and microorganisms in sludge, etc. Achieve the effects of avoiding secondary pollution, good promotion value, and simplifying sludge treatment methods

Pending Publication Date: 2021-08-17
HUAJIANG CONSTR OF CHINA CONSTR FIRST BUILDING GROUP CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a treatment method for river silt and its construction method, to solve the technical problems that the traditional method cannot completely remove harmful heavy metals and microorganisms in the silt and is not conducive to the subsequent secondary utilization of resources

Method used

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Examples

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Example Embodiment

[0024] The treatment method of such river sludge is first collected by the river, and the heavy metal curing agent is added to the heavy metal in the sludge, and the heavy metal content in the sludge after the heavy metal curing agent is added. Within the standard limit.

[0025] Then, according to the sludgy of the sludge or sludge weight, the pig manure is added, and the edible bacteria waste is stirred. There will be a small amount of perfiltration in the stirring process, and a small amount of edible bacterial package washing is absorbed, and the leachate zero discharge is achieved. .

[0026] Next, according to the total weight of the sludge, 1 to 1.5 kg of high-efficiency biofacteria was added per ton, stir well and shoveled with a forklift into a static fermentrium.

[0027] The temperature of the sludge mixture during the static fermentation process will naturally rise to 65-70 ° C, this temperature will remain for 10-15 days, and the harmful bacteria at this temperature will

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Abstract

The invention relates to a river sludge treatment method, which comprises: 1, carrying out solid waste leaching toxicity identification detection on sludge; step 2, chelating and curing heavy metals in the sludge; 3, according to the weight of the chelated sludge, adding pig manure and edible fungus bag waste in proportion and stirring, and when percolate is generated, adding edible fungus bag waste; 4, adding efficient biological bacteria for stirring; step 5, after uniformly stirring, shoveling the sludge mixture into a static fermentation tank by using a forklift, and fermenting; step 6, performing static fermentation on the sludge mixture in the fermentation tank for 10-15 days; and step 7, taking out the sludge mixture from the fermentation tank, spreading the fermented sludge, carrying out rotary tillage, airing to evaporate water, and then carrying out turning and dewatering to obtain the treated sludge. The technical problems that harmful heavy metals and microorganisms in the sludge cannot be completely removed and subsequent secondary utilization of resources is not facilitated in a traditional method are solved.

Description

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Claims

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Application Information

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Owner HUAJIANG CONSTR OF CHINA CONSTR FIRST BUILDING GROUP CORP
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