Municipal Sludge Disposal
Municipal sludge (mainly including sludge produced by urban sewage treatment plants, underground pipe networks and river channels) mainly belongs to organic sludge, with high moisture content (80% - 90%), high organic content, fine particles, a large amount of N, P, K and Ca, as well as trace elements necessary for plants. After compatibility, film covered fermentation is carried out to oxidize and decompose under aerobic conditions, so as to reduce the moisture of organic matter, decompose and eliminate odor. Most of the decomposed and dried sludge can be used for soil conditioning or carbonization.
Industrial sludge disposal
Industrial sludge (mainly including sludge from paper industry, printing and dyeing industry, leather industry, down manufacturing industry, etc.) is treated by pyrolysis and carbonization after deodorization and moisture reduction through low-temperature drying equipment. The abundant thermal energy from pyrolysis can be used for heating in the drying process.
After pretreatment, the oil sludge (mainly including oil sludge and acid sludge of steel and steel rolling enterprises, drilling cuttings and landing oil sludge in oil exploitation, oil sludge at the bottom of the tank in oil storage and transportation, scum oil sludge in oil refining, etc.) enters the pyrolysis treatment system and decomposes under isolated air and temperature of 400 - 450 ℃ to produce pyrolysis gas and pyrolysis carbon. The pyrolysis gas is separated into non condensable gas and liquid through the condensation system; After purification, the non condensable gas returns to the combustion chamber of the pyrolysis furnace for combustion and heating. The liquid (fuel oil) is sold as a product, and the pyrolytic carbon is sold as a product to the brick factory or cement factory.