Multifunctional livestock and poultry manure energy regeneration pretreatment composite system

Abstract

The invention discloses a multifunctional livestock and poultry manure energy regeneration pretreatment composite system which comprises an anaerobic fermentation system, a solid-liquid separation system, a biogas recycling system and an organic fertilizer utilization system. According to the invention, the excrement discharge problem of the livestock farm can be effectively solved, the excrement is fully utilized, the excrement is subjected to solid-liquid-gas three-phase separation in the anaerobic fermentation system and the waste solid-liquid separation system through the excrement pool, and the biogas enters the biogas recycling system to be conveniently recycled; solid excrement is treated and enters the organic fertilizer utilization system for fishpond breeding and farmland planting, residual liquid can also be used for providing fertilizer for farmland through irrigation, efficient utilization of energy is improved, and the whole system is convenient to operate, simple and labor-saving and has important significance on livestock and poultry excrement treatment.

Description

technical field [0001] The invention relates to the technical field of aquaculture waste treatment, in particular to a multifunctional livestock and poultry manure energy pretreatment composite system. Background technique [0002] Based on various biomass resources all over the rural areas, on-site and nearby resource utilization, the development of biomass energy is an inevitable requirement for the comprehensive realization of national energy transformation. Reduce air pollution and fossil energy consumption. According to the requirements of new rural construction and the strengthening of people's awareness of environmental protection and energy conservation, with the development of animal husbandry, the discharge of livestock waste is increasing, and the negative impact on the agricultural ecological environment, water and soil environment is also becoming more and more serious. [0003] Livestock and poultry manure is mainly a mixture of excrement from livestock and po...

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Problems solved by technology

[0006] In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a multi-functional livestock and poultry manure energy pretreatment composite system, which is green and environmentally friendly, and can solve the problem of incomplete fermentation in the traditional manure energy pretreatment system and the inability to process manure. To fully utilize the problem, the invention can improve the working efficiency of manure energy pretreatment, increase the rate of anaerobic fermentation and gas production rate, greatly improve the efficiency of dehydration treatment of livestock and poultry manure, and realize the diversified utilization of manure pretreatment

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