Dehydration test instrument of sludge garbage mixture

Abstract

The invention belongs to the technical field of environment geotechnical engineering, in particular to a dehydration test instrument of sludge garbage mixture, which consists of a crown plate, a compression container, a pressure piston, a geotechnical fabric, a permeable stone, a connecting pipe, a percolate collector, a plastic drainage plate, a tray, a displacement meter, a jack, an upright post and a base, wherein the crown plate, the upright post and the base form a reaction frame system; the pressure piston is arranged above the compression container; the compression container is arranged above the tray; the lateral wall of the compression container has double layers, the compression container consists of an inner barrel and an outer barrel, the lateral wall of the inner barrel is provided with a drain hole, the geotechnical fabric is paved in the inner barrel, and the plastic drainage plate is inserted in the inner barrel; a drain hole is arranged on the lateral wall of the tray; the jack is arranged between the tray and the base; the displacement meter consists of a magnetic support and a test instrument; one end of the connecting pipe is connected with the drain hole in the lateral wall of the tray, and the other end is connected with the percolate collector. The invention has more drain paths and large size, performs preservative treatment to part of components, solves the problems existing in the prior test instrument during testing the solidification and the dehydration of the sludge garbage mixture; and the invention can reasonably estimate the solidification and dehydration effects of the sludge garbage mixture.

Description

technical field [0001] The invention belongs to the technical field of environmental geotechnical engineering, and in particular relates to a solidification and dehydration tester for sludge garbage mixture. Background technique [0002] Sludge is an inevitable product of sewage treatment in urban sewage treatment plants. It is a black or dark brown fluid substance with high water content (the water content of concentrated sludge is about 97%, and the water content of dewatered sludge is about 80%). , the composition is very complex, if the sludge is discharged directly without treatment, it will cause serious harm to the environment. At present, the commonly used treatment methods are: agricultural use of sludge, sanitary landfill, incineration, drying, heat treatment and final utilization, etc. The treatment method with incineration as the core is the most thorough treatment method, and the dewatered sludge is directly sent to the incinerator incinerate. However, since t...

AI Technical Summary

Problems solved by technology

Due to the high water content of the sludge and garbage mixture and a large amount of organic matter, the current traditional geotechnical compression instrument only has upper and lower permeable surfaces that can permeate water, has few drainage paths, and the sample size is small, so the solidification and compression test of the sludge and garbage mixture is poor.

The corrosiveness of the sludge and garbage mixture also requires the instrument to have a certain degree of corrosion resistance, which cannot be met by traditional geotechnical compression instruments.

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