City sludge comprehensive utilization

Abstract

This invention discloses a method for using city sludge in combination composed of 1, a sludge drying unit, 2, a burning and processing unit, 3, a smoke process unit, 4, a turbine-generator set generation unit, 5, a waste gas collection and process unit, 6, a producing unit for construction materials, which mainly utilizes the steam exhaust generated by the steam turbine set and waste steam generated when drying sludge.

Description

technical field [0001] The invention belongs to the field of municipal sludge treatment, and in particular relates to a method for treating municipal sludge with high environmental protection, resource utilization and volume reduction. Background technique [0002] In recent years, the process of urbanization has become more and more rapid, and the generation and treatment rate of urban domestic sewage have also increased. Although various methods have been adopted to reduce the output of urban sludge, the total amount is still increasing rapidly. increment. Sludge is a heterogeneous body composed of organic debris, bacteria, inorganic particles and colloids. It is difficult to carry out thorough solid-liquid separation by sedimentation. The mixed sludge produced by domestic sewage treatment and the biologically treated sludge produced by industrial wastewater are typical organic sludge, which is characterized by high organic matter content (60%-80%), fine particles (0.02-...

AI Technical Summary

Problems solved by technology

At the same time, if the harmful substances contained in the sludge are piled up for a long time without disposal, they will cause great harm to the environment and human beings. At the same time, the organic matter, ammonia, nitrogen, etc. contained in the sludge will consume a large amount of oxygen in the water body, causing the deterioration of water quality.

Simple stacking not only takes up a lot of land

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