Hogpen feces treatment technique

Abstract

The invention provides a novel technology for processing piggery wastes, which comprises acidification of the piggery wastes in an acidification pool. The invention is characterized in that: through ferment and gas production in a biogas pool, the acidifying wastes enter into a solid-liquid separator to be separated; the separated biogas residues,, after being added with nutritious elements, manufacture directly compound organic fertilizer; the separated sewage is discharged after aerobic processing. By the technology of the invention, the solid-liquid separator is arranged on the biogas pool, so that the acidifying wastes are fermented and gas is produced through the biogas pool directly and separated by entering the solid-liquid separator; therefore, the sewage feed in the biogas pool has a relative high thickness of organic matter and a large biogas output; the novel technology for processing piggery wastes also avoid odor and greenhouse gas such as methane etc. in composting treatment emitting to the atmosphere and polluting the atmosphere.

Description

technical field [0001] The invention belongs to the technical field of biogas, and more specifically relates to a new process for treating pig farm manure. Background technique [0002] In the current pig farm sewage treatment process, the solid-liquid separator is placed in front of the biogas tank as a pretreatment device, and the concentration of organic matter in the sewage is small, which affects the gas production rate of the biogas tank; after the manure is dried and cleaned, the manure is usually composted, accounting for The land area is large, and the greenhouse gases such as methane are directly discharged into the atmosphere, causing air pollution. Moreover, the finally generated sewage is discharged after seldom undergoing aerobic treatment, which increases the pollution of the environment. Contents of the invention [0003] The purpose of the present invention is to provide a new process for pig farm manure treatment. In this process, the solid-liquid separa...

AI Technical Summary

Problems solved by technology

[0002] In the current pig farm sewage treatment process, the solid-liquid separator is placed in front of the biogas tank as a pretreatment device, and the concentration of organic matter in the sewage is small, which affects the gas production rate of the biogas tank; after the manure is dried and cleaned, the manure is usually composted, accounting for The land area is large, and the greenhouse gases such as methane are directly discharged into the atmosphere, causing air pollution

Moreover, the final sewage is rarely discharged after aerobic treatment, which increases the pollution of the environment

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