Drench sludge treatment process and treatment system

Abstract

The invention discloses a sewer sludge treatment process and system, the sewer sludge treatment process comprises pretreatment, material classification, sand treatment, fuel forming and tail water treatment, and the sewer sludge treatment system comprises a pretreatment part, a material classification part, an aggregate treatment part, a sand treatment part, a fuel forming part and a tail water treatment part. The method comprises the following steps: separating heavy aggregate from a sand-gravel mixture in a pretreatment stage; in the material classification stage, the heavy aggregate, the first organic material and the gravel mixture are separated, and stone aggregate is obtained; in the sand material treatment stage, sand and stones are separated from the second organic material, and sand materials are obtained; in the fuel forming stage, the organic material is formed into fuel; in the tail water treatment stage, supernate is recycled to the pretreatment step, sewage is further treated, products in the whole treatment process are stone aggregate, sand and fuel, the products can be effectively utilized, incineration and landfill are not needed, and the influence on the ecological environment is small.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to a communication sludge treatment process and a treatment system. Background technique [0002] Drainage sludge is the sediment dredged and removed in the maintenance of urban drainage pipelines. It is mainly a mixture of inorganic materials such as stones, bricks, sand, glass, etc., and organic substances such as plant leaves, plastics, and foam. The treatment of ditch sludge is mainly landfill and incineration after screening. The incineration of high calorific value resources in the sludge causes waste of resources, excessive landfill affects the surface ecology, and the landfill of organic matter causes pollution to the environment and is not conducive to soil and water. Stable, with natural risks. SUMMARY OF THE INVENTION [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present inventi...

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Problems solved by technology

[0002] Channel sludge is the sediment dredged and cleared in the maintenance of urban drainage pipes. It is mainly a mixture of inorganic materials such as stones, bricks, sand, and glass, and organic matter such as plant branches and leaves, plastics, and foam. The treatment of ditch sludge is mainly landfill and incineration after screening. The incineration of high calorific value resources in the sludge causes waste of resources. Excessive landfill affects the surface ecology, and the landfill of organic matter pollutes the environment and is not conducive to water and soil. Stable with natural risks

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