Modular sludge thermal hydrolysis treatment method and device

Abstract

The invention provides a modular sludge thermal hydrolysis treatment method and device. The sludge thermal hydrolysis treatment device comprises a thermal hydrolysis reaction kettle, a cooling jackettank and a measuring bin, and the measuring bin, the thermal hydrolysis reaction kettle and the cooling jacket tank communicate sequentially. The modular sludge thermal hydrolysis treatment device andmethod have the beneficial effects that: 1, sludge is subjected to a thermal hydrolysis reaction, so that the biodegradability of the sludge is greatly improved, the dehydration property of the sludge is greatly improved, poisonous and harmful pathogenic bacteria and toxic substances in the sludge are killed, and the reduction, harmlessness and recycle of the sludge are realized; 2, no alkaline agents are added in the process, so that the temperature and pressure of sludge thermal hydrolysis treatment are greatly reduced, the equipment grade, energy consumption and cost are reduced, and the treatment efficiency is increased; 3, the biochemical indexes of thermal hydrolysis slurry of a sludge thermal hydrolysis treatment process are increased, and the B / C ratio of the biochemical indexes is increased from 0.24 to 0.5; and 4, due to the adoption of the sludge thermal hydrolysis treatment process, the concentration of odor in the reaction kettle is greatly reduced from the source.

Description

technical field [0001] The invention relates to the field of sludge treatment and disposal, in particular to a modular sludge thermal hydrolysis treatment method and device. Background technique [0002] With the rapid development of industry and the continuous increase of urban population, the discharge of urban sewage has increased unprecedentedly. Under this background, the development of sewage treatment plants is in the ascendant. At present, the number of urban sewage treatment plants in my country has exceeded 2,000, and the annual sewage treatment capacity has more than doubled compared with that during the Tenth Five-Year Period. During the operation of the sewage treatment process, part of the sludge produced by the process is refluxed as the reactant of the biological reaction, while the remaining sludge is discharged out of the system. The amount of these remaining sludge is surprising, its moisture content is high, bulky, perishable, smelly, and contains a larg...

AI Technical Summary

Problems solved by technology

It can be seen that landfill is still the main method of sludge treatment in my country. In addition, the disposal capacity of urban sewage treatment enterprises in my country is insufficient and the disposal methods are backward. serious threat

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