Efficient collaborative reclamation utilization method for various small-scale county-area perishable wastes

Abstract

The invention discloses an efficient collaborative reclamation utilization method for various small-scale county-area perishable wastes. The method comprises the following steps of (1) building a county-area organic perishable waste comprehensive reclamation utilization park, and building a pretreatment system and a biotransformation reclamation utilization system; (2) uniformly collecting classified food waste, kitchen waste, fruit and vegetable waste, livestock and poultry feces and the like in an area to form a scale effect, and performing efficient homogenizing, slurrying and impurity removing in the pretreatment system based on hydraulic decomposition separation to generate organic matter mixed slurry with the proper C/N ratio; and (3) guiding the organic matter mixed slurry into ananaerobic digestion system for multi-material collaborative anaerobic fermentation, and converting the organic matter mixed slurry into biogas, biogas residue and biogas slurry for providing biomass fuel gas and high-quality organic fertilizer for the area. According to the method, through efficient collaborative pretreatment and anaerobic fermentation, the biogas yield is improved, the balance and the fertilizer efficiency of effective nutrient components in the biogas residue and biogas slurry are improved, and finally the efficient collaborative reclamation of the various small-scale county-area perishable wastes is realized.

Description

technical field [0001] The invention belongs to the fields of environmental protection and renewable energy utilization, and in particular relates to a method for efficient and collaborative resource utilization of various perishable garbage in small-scale counties. Background technique [0002] With the rapid development of my country's economy and the continuous improvement of people's living standards, the output of solid waste has increased year by year, resulting in increasingly prominent environmental pollution problems and becoming an important factor restricting my country's economic development. For the treatment of large-scale urban organic solid waste (including perishable waste), there are currently many mature technologies or models that can be used for reference, such as incineration, anaerobic and composting technologies, and solid waste comprehensive treatment cycles based on such technologies Eco-industrial park mode; through the form of parks, organic solid...

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Problems solved by technology

[0004] In order to overcome the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide a method for the efficient and coordinated resource utilization of various perishable wastes in small-scale counties. Qualitative pulping and impurity removal, to solve the problem of complex pretreatment process, and at the same time, through the efficient and collaborative anaerobic fermentation of organic slurry and product deep processing, the efficient and collaborative resource utilization of various perishable wastes in the county is realized, and finally a small-scale county-level multi- A technical model for resource utilization of perishable waste

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