Comprehensive recycling utilization system for processing animal dung

Abstract

The invention belongs to the field of dung treatment of a large-scale livestock field, and particularly relates to a comprehensive recycling utilization system for processing animal dung. The device comprises a methane production unit, a digestion unit and a separation pond, wherein the methane production unit comprises at least one methane tank; a gas collection and storage unit covering over leavening inside the pond is also arranged in the methane tank; fermentation residues in the methane tank are discharged to the digestion unit; the digestion unit comprises at least one septic-tank; the liquid inside the at least one septic-tank is discharged to a discharge unit; the separation pond is used for carrying out solid-liquid separation on the liquid flowing inside the separation pond; and an exhaust port is formed in the wall of the separation tank. The device is simple in structure, low in construction cost, and can be popularized and applied in a vast rural area conveniently.

Description

technical field [0001] The invention belongs to the field of excrement treatment of large-scale poultry and livestock farms, and in particular relates to a resource comprehensive utilization system for processing poultry and livestock excrement. Background technique [0002] In the prior art, for the treatment and utilization of livestock and poultry manure, there are mainly the following methods: [0003] The first is the incineration method, which uses waste incineration treatment technology to ash it at 800-1000°C, and the heat generated is used for power generation, etc., to achieve the purpose of reducing and killing harmful pathogens. This method requires large investment, expensive treatment costs, and produces a large amount of harmful gases during the treatment process, making it difficult to apply and promote. [0004] The second is the drying method, which mainly includes natural drying, high-temperature rapid drying, drying and expansion drying, mechanical dryin...

AI Technical Summary

Problems solved by technology

However, in the existing comprehensive utilization devices of feces, the engineering cost is often high and the cost is huge, which is difficult for ordinary farmers to bear.

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