Infiltration chamber system for infiltrating, drying and digesting sludge

Abstract

The invention relates to a sludge treating process, in particular to an infiltration chamber system for infiltrating, drying and digesting sludge. The infiltration chamber system for infiltrating, drying and digesting sludge comprises an infiltration chamber, wherein a bottom plate of the infiltration chamber is provided with a water-proof geomembrane; the water-proof geomembrane is provided with a filtering layer; the thickness of the filtering layer is 650-750 millimeters; the filtering layer is formed by paving gravel filter materials; the filtering layer consists of three types of filter materials of different particle diameters in an upper filtering layer, a middle filtering layer and a lower filtering layer; a perforated water collecting pipe is arranged in the lower filtering layer; the perforated water collecting pipe is connected with an infiltrate drainage pipe; one side wall of the infiltration chamber is provided with a sludge inlet pipe; another side which is opposite to the side wall is provided with a supernatant drainage pipe; the supernatant drainage pipe is higher than the upper filtering layer; and the top of the filtrating chamber is provided with a sunlight plate top cover. The use of the technical scheme defined by the invention is not limited by areas or climate, the sludge drying speed is high, the stability degree is high, and secondary pollution caused by underground water does not exist simultaneously.

Description

technical field [0001] The invention relates to sludge treatment technology, in particular to a percolation chamber system for percolating, drying and digesting sludge. Background technique [0002] During the sewage purification process, urban sewage plants will produce semi-solid or solid sludge with different water content. This sludge is a complex heterogeneous body composed of microorganisms, organic fragments, inorganic particles, colloids, etc. This sludge contains not only carbon, nitrogen, phosphorus, potassium and other plant nutrients, but also toxic and harmful substances such as pathogens, heavy metals and organic pollutants. The main goal of sludge treatment in urban sewage plants is to reduce, stabilize and harmless, and avoid secondary pollution. [0003] Sludge drying is an important factor to promote sludge reuse, whether it is incineration or land use, drying is an important step. There are mainly two schemes for sludge treatment in existing sewage plant...

AI Technical Summary

Problems solved by technology

However, the use of this equipment is limited by the region. In areas with less sunshine, the sludge drying cycle is long; the use of this equipment is also limited by the climate of the area where it is used. In areas with more precipitation, the sludge drying cycle is long. At the same time, the reduction effect of sludge is not obvious in winter, and the evaporation of sewage in summer is large, and the operation of this equipment will have a great impact on the surrounding environment

Images