Resourceful treatment utilization method and device for livestock excrement

Abstract

The invention discloses a resourceful treatment utilization method and device for livestock excrement. The method includes the steps that dry-wet separation is performed, organic fertilizer is produced through dry excrement fermentation, anaerobic biological treatment is performed, flocculent precipitation is performed, solid-liquid separation is performed, and organic water-soluble fertilizer is produced through reverse osmosis concentration; the device comprises a dry-wet separator, a fermentation tank, an anaerobic reactor, a flocculent precipitation tank, a solid-liquid separator and a reverse osmosis device. Dry-wet separation is performed on the livestock excrement, then separate treatment is performed, the dry excrement is finally made into the organic fertilizer, liquid excrement slurry is finally made into the organic water-soluble fertilizer, and obtained products are natural organic fertilizer and wastewater capable of achieving emission up to standards; a lot of organic matter contained in the livestock excrement is sufficiently utilized for preparing the organic fertilizer, the problem that during discharging of the livestock excrement, pollution is generated is solved, and both economic benefits and environmental protection benefits are achieved.

Description

technical field [0001] The invention relates to the technical field of livestock and poultry manure treatment, in particular to a method and device for resource utilization of livestock and poultry manure. Background technique [0002] With the rapid development and continuous expansion of my country's livestock and poultry breeding industry, the discharge of livestock and poultry manure is also increasing sharply. If a large amount of livestock and poultry manure is not handled properly, it may cause problems such as odor, eutrophication of water bodies, and the spread of diseases. Most of the existing livestock and poultry farms discharge livestock and poultry manure directly into ponds or rivers, and these polluted water sources are washed into the river with rainwater during the flood season, causing serious pollution to surface water, groundwater, soil and air, and causing The eutrophication of water bodies and endangering the health of livestock and poultry itself and h...

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Problems solved by technology

[0004] The object of the present invention is to: aim at the problems existing in the prior art, to provide a method and device for resource utilization of livestock and poultry manure, the treatment of livestock and poultry manure can not only solve the problem of livestock and poultry manure discharge pollution, but also provide organic agriculture Organic Fertilizer

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