Household waste incineration power generation and sludge drying treatment synergetic method and system

Abstract

The invention discloses a household waste incineration power generation and sludge drying treatment synergetic method and system. According to the household waste incineration power generation and sludge drying treatment synergetic method, a low-pressure extracted steam of a steam turbine generator set of a household waste incineration power generation system is used as a heat source for sludge drying treatment, and the dried sludge and household waste are mixed and incinerated for power generation; and odor and waste water in the sludge drying process and smoke and ash generated in the sludgeincineration process are jointly treated through waste water, waste gas and waste residue pollution preventing facilities in the household waste incineration power generation system. By the adoptionof the household waste incineration power generation and sludge drying synergetic treatment method and system, by means of synergy between the household waste incineration power generation and sludgetreatment, the effects of reduction, disinfection, sterilization and odor removal are achieved in the drying process, the harmless requirement of sludge treatment is met, reduction and recycling of the sludge are achieved in a real sense on this premise, and good economic, social and environment benefits are achieved.

Description

technical field [0001] The invention belongs to the sludge treatment technology, and relates to a domestic waste incineration power generation cooperative sludge drying treatment method and system. Background technique [0002] With the rapid development of the economy, the continuous increase of urban population and the construction and development of beautiful countryside, the amount of sludge generated has increased dramatically. Sludge has a high content of organic matter, is perishable, has a strong odor, and contains parasite eggs, pathogenic microorganisms, heavy metals such as copper, zinc, chromium, mercury, salts, polychlorinated biphenyls, dioxins, radionuclides, etc. Toxic and harmful substances that are difficult to degrade will cause secondary pollution if they are not properly treated and discharged arbitrarily. Especially in the process of sewage treatment, 70% to 90% of heavy metal elements are transferred to sludge through adsorption or precipitation. Exce...

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Problems solved by technology

[0005] The technical problem solved by the present invention is: aiming at the above-mentioned problems existing in the existing sludge synergistic domestic waste incineration treatment technology, to provide a domestic waste incineration power generation synergistic sludge drying treatment method and system, using the excess heat energy of the power generation system to treat sewage The sludge is dried, and the pollution prevention and control facilities of the domestic waste incineration power generation system are fully shared with the sludge drying process

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