Method for manufacturing bricks by mixing domestic mud and bottom mud of rivers and lakes

Abstract

The invention relates to a method for manufacturing bricks, in particular to a method for manufacturing bricks by mixing domestic sewage sludge and bottom mud of rivers and lakes. According to the technical scheme provided by the invention, the method for manufacturing bricks by mixing domestic sewage sludge and bottom mud of rivers and lakes comprises the following steps: a. processing domestic mud, wherein liquid sludge of sewage treatment plants is made into mud cakes after flocculation, dehydration and filter pressing; b. processing bottom mud of rivers and lakes, wherein muddy water with mud content of 10-15 percent is transferred to a preset drying pool to form settling bottom mud by taking a technology for separating mud and water from the bottom mud of rivers and lakes; and the settling bottom mud becomes river and lake dewatered bottom mud used for manufacturing bricks after being dried for 3-4 months and having mud content of 60-70 percent; c. preparing mixture, wherein the mud cakes, slag and river and lake dewatered bottom mud are prepared according to the mass ratio and are used for making green bricks when the water content of the slag is measured to reach 15-25 percent; during preparation, 1-3 parts by weight of mud cakes are added to every 2 parts by weight of slag, and 5-7 parts by weight of river and lake dewatered bottom mud are added. The invention can better process domestic sewage sludge and improves the environment.

Description

technical field [0001] The invention relates to a method for making bricks, in particular to a method for making bricks by mixing domestic sludge and river and lake bottom mud. Background technique [0002] The traditional way of making bricks needs to consume a lot of clay, which seriously encroached on the cultivated land. In order to protect the cultivated land, the government has issued relevant policies, and strengthened the "prohibition and restriction of clay", and it is neither realistic nor possible to use clay to make bricks. At the same time, with the rapid development of cities and market towns, environmental pollution has become increasingly serious. Household garbage and sewage have seriously affected people's living environment. At present, the government has made great efforts to establish domestic garbage and sewage collection networks for urban residents to centralize the treatment of garbage and sewage, which relatively solves environmental pollution. H...

AI Technical Summary

Problems solved by technology

However, there are still some imperfections in the disposal of domestic sludge from large-scale sewage treatment.

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