Treatment system and method for zero-pollution discharge of livestock and poultry industry

Abstract

The invention discloses a treatment system and method for zero-pollution discharge of the livestock and poultry industry. The treatment system comprises a livestock and poultry house, a collection tank, a biogas tank, a concentration and separation device, a blow-off device, a filter pressing device, a high-pressure steam boiler, a drying device and a carbonizing furnace which are arranged in turn. According to the scheme of the invention, flushing liquid and excrement in the livestock and poultry house are treated in turn; then clear feed liquid obtained by the treatment is reused as flushing liquid for the livestock and poultry house, and thus the flushing cost of the livestock and poultry house is reduced; a treated solid-phase material is carbonized finally by the carbonizing furnace; an obtained carbonized material can be used as a water purifier, a soil improver, a fertilizer or a solid fuel; therefore, a secondary economic value is created, the reuse of all wastes in a breeding process nu the livestock and poultry house is also realized, and an aim of zero-pollution discharge is achieved.

Description

technical field [0001] The invention relates to the technical field of breeding environment, in particular to a treatment system and method for zero-pollution discharge in the livestock and poultry breeding industry. Background technique [0002] The environmental problems of the livestock and poultry breeding industry are currently a hot topic of concern to the general public. Among them, the treatment of breeding wastewater and livestock and poultry manure are two major problems that have always plagued farmers. The amount of feed residues and livestock manure produced in the process is also increasing, and most of the current methods are to recycle them as raw materials for biogas fermentation. For large-scale farms, due to the need for regular Regular cleaning of livestock and poultry houses will produce a large amount of waste water. If it is only used as a raw material for biogas fermentation, it will require an extremely large biogas treatment tank to complete, and it...

AI Technical Summary

Problems solved by technology

[0002] The environmental problems of the livestock and poultry breeding industry are currently a hot topic of concern to the general public. Among them, the treatment of breeding wastewater and livestock and poultry manure are two major problems that have always plagued farmers. The amount of feed residues and livestock manure produced in the process is also increasing, and most of the current methods are to recycle them as raw materials for biogas fermentation. For large-scale farms, due to the need for regular Regular cleaning of livestock and poultry houses will produce a large amount of waste water. If it is only used as a raw material for biogas fermentation, it will require an extremely large biogas treatment tank to complete, and it will also generate a large amount of investment in the production area, which is extremely unfavorable. Convenience and economy, so there is an urgent need for a diversified breeding system to deal with the ecological cycle of large-scale breeding of livestock and poultry

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