Marble sewage treatment production line

Abstract

The invention discloses a marble sewage treatment production line and belongs to the technical field of stone processing. By means of dead weight of suspended particles in sewage, a treatment system follows the principle of mass sedimentation and adopts a treatment way combining vertical-flow sedimentation in tanks and horizontal-flow sedimentation in water pools, so that the suspended particles settle to the bottoms of the water tanks, and sludge-water layering and sewage purification are realized. Marble sewage produced in a gang saw workshop and a kerb workshop is treated with vertical-flow sedimentation, for example, about 1 million m<3> of stone sewage can be treated every year and 78.34% is recycled, then 0.7834 million m<3> of tap water can be saved, in terms of 2.5 yuan saved for each ton, 0.7981 million yuan can be increased each year by the sewage system, and pollution treatment cost caused by massive sewage emission is saved.

Description

technical field [0001] The invention relates to a marble sewage treatment production line, belonging to the technical field of stone processing. Background technique [0002] During the processing of marble, a large amount of stone sewage is produced, and the sewage contains a large amount of stone powder. If the stone powder is not separated and treated, the stone sewage cannot be recycled. After discharge, it is easy to cause serious environmental pollution, and a large amount of tap water will also increase production costs, so it is imperative to treat and recycle stone sewage. The sewage in the processing plant mainly comes from the cooling water and flushing water in the sawing process and the grinding and polishing process. These processes consume a lot of water. Only one gang saw consumes 48 cubic meters of water per hour. The processing plant can produce stone materials every day during full production. The sewage is about 3300 cubic meters. [0003] At present, t...

AI Technical Summary

Problems solved by technology

This simple and primitive treatment technology only sets up a few simple sedimentation tanks, which takes up a lot of land resources, but also brings very serious environmental pollution, and the recycling rate of sewage is less than 40%.

But this technology also has its shortcomings, which are mainly reflected in four aspects: (1) high construction cost; (2) construction cost that ordinary enterprises cannot afford; There is a problem of chemical accumulation in sewage. The sewage after long-term accumulation and treatment will not meet the requirements of use, and the addition of chemical will also be separated, which will bring certain difficulties to the comprehensive utilization of sludge.

Images