Standard discharge treatment system for livestock and poultry waste water and method thereof

Abstract

The invention discloses a standard discharge treatment system for livestock and poultry waste water and a method thereof, the method comprises the following steps: pretreating livestock and poultry waste water with high concentration in a pre-treatment pool; introducing the treated livestock and poultry waste water in a first stage anaerobic reactor, continuously stirring in the reactor, then fermenting to obtain biogas; reacting and introducing in a secondary anaerobic reactor through an outlet pipe, completing water distribution, performing gas production and three-phase separation in an upflow anaerobic sludge blanket; introducing the processed effluent in a first stage biochemical treatment system for processing, performing solid-liquid separation; and then introducing a supernatant in a secondary biochemical treatment system for processing. According to the invention, two stage anaerobic reactors and two stage biochemical treatment systems are combined for performing high efficiency anaerobic fermentation and aerobic operation treatment on the livestock and poultry waste water, so that renewable energy biogas is generated, and treatment for livestock and poultry waste water standard discharge can be simultaneously realized, and the materials have the advantages of reliable quality, low cost, obvious energy effect, energy saving and environmental protection.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to a treatment method and a treatment system for discharging livestock and poultry wastewater up to the standard. Background technique [0002] Most of the discharges from large-scale livestock and poultry farms are comprehensively utilized or directly discharged into water bodies after preliminary anaerobic treatment, which is one of the most important sources of agricultural pollution. With the economic growth, the aquaculture industry will continue to develop further in a long period of time in the future, and the environmental requirements will become more and more stringent. In view of the outstanding problems such as the lack of economical and applicable technology and the unsound management system, combined with the characteristics of the livestock and poultry breeding industry, it is necessary to establish a high-efficiency biological treatment technology system f...

AI Technical Summary

Problems solved by technology

[0003] The excrement of livestock and poultry farms is characterized by large discharge volume, high concentration of organic matter, and high SS content. Conventional sewage treatment methods may still have problems such as poor biodegradability, small C / N, and poor treatment effect of aerobic post-treatment systems. Therefore, it is very necessary and urgent to develop efficient and economical livestock and poultry wastewater treatment technology to reduce the pollution of pollutants to the environment

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