Energy-saving recycling treatment disposal system and energy-saving recycling treatment disposal process for organic solid waste

Abstract

The invention relates to an energy-saving recycling treatment disposal system and an energy-saving recycling treatment disposal process for an organic solid waste. The energy-saving recycling treatment disposal process mainly comprises a continuous sludge pyrohydrolysis anaerobic digestion section, a sludge dehydration heat drying section and a dry sludge, domestic garbage and biogas mixing incineration section. Due to the energy-saving recycling treatment disposal system and process disclosed by the invention, the innocent treatment of kitchen garbage, municipal sludge and the domestic garbage can be thoroughly realized by combining a high-temperature sludge anaerobic digestion technology with the high-organic matter characteristic of the kitchen garbage by utilizing respective characteristics of three solid wastes, applying a solid waste high-temperature incineration technology of mixed biogas, adopting a reasonable energy resource integrated means and applying an advanced high-temperature continuous pyrohydrolysis pretreatment technology. In addition, the energy-saving recycling treatment disposal process disclosed by the invention can also be used for realizing the recycling of the three solid wastes, improving the energy resource utilization efficiency of an integrated system, effectively reducing the input of external energy resources and reducing the operation cost. The energy-saving recycling treatment disposal process disclosed by the invention is capable of realizing the continuous operation of solid waste treatment, simple and reliable, simple in equipment, small in initial investment and has good environmental and economic benefits.

Description

technical field [0001] The invention belongs to the technical field of organic solid waste treatment, and in particular relates to a kind of solid waste such as sludge and kitchen waste, which utilizes its high-temperature anaerobic fermentation to produce biogas and mixes and incinerates organic matter energy and heat energy with solid waste such as domestic waste. Carry out energy-saving combined processes such as continuous thermal hydrolysis pretreatment of sludge, cyclic heat exchange, and sludge drying. Background technique [0002] With economic development, population growth and the acceleration of urbanization, the output of solid waste such as domestic garbage, municipal sludge, and kitchen waste is also increasing. However, the technology and equipment for solid waste treatment in my country are generally backward. The guarantee rate of safe treatment and disposal of solid waste is very low, which has become an urgent problem to be solved in our country. On the ot...

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Problems solved by technology

[0007] The purpose of the present invention is to provide an energy-saving and resource-based treatment and disposal system and process for organic solid waste. The present invention is used to realize the mixed continuous thermal hydrolysis pretreatment process of sludge and kitchen waste, and solve the problem of low organic matter in sludge. The problems of low anaerobic gas production rate and difficult disposal of kitchen waste. At the same time, through the mixed incineration process of biogas, domestic waste and dry mud, it is difficult to completely and harmlessly treat solid waste.

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