Wastewater treatment system for livestock and poultry breeding

Abstract

The invention discloses a wastewater treatment system for livestock and poultry breeding. The wastewater treatment system mainly comprises a barrier device, a biogas digester, a regulating tank, solid and liquid separating equipment, a primary settling tank and an M filter tank. The wastewater treatment system is characterized in that the barrier device is connected with the biogas digester through a sludge pump, the biogas digester is connected with the regulating tank, the regulating tank is connected with the solid and liquid separating equipment, the solid and liquid separating equipment is connected with the primary settling tank, the primary settling tank is connected with a hydrolysis acidification tank, the hydrolysis acidification tank is connected with a contact oxidation tank, the contact oxidation tank is connected with the M filter tank, the M filter tank is connected with an artificial wetland, and the artificial wetland is connected with a photocatalyzing tank. An automatic-control system can be adopted for the wastewater treatment system, operation is easy, manpower is reduced, the recycling rate of resources is increased, environment pollution is reduced, energy conservation and emission reduction are achieved, and the requirement for environment friendliness is met.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a livestock and poultry breeding wastewater treatment system. Background technique [0002] In recent years, with the continuous development of China's agriculture and industry, the livestock and poultry breeding industry in most areas has developed rapidly, and at the same time it has caused serious pollution problems to the environment. At present, China produces about 4.5 billion tons of livestock and poultry manure every year, and its chemical oxygen demand far exceeds the sum of China's industrial wastewater and domestic sewage. At present, industrial pollution, domestic pollution, and livestock and poultry breeding pollution are the third largest pollution sources in the world, and they have become one of the main causes of non-point source pollution in rural China. Among them, the pollution caused by aquaculture wastewater is particularly prominent. [0003]...

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Problems solved by technology

[0015] In order to overcome the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide a livestock and poultry breeding wastewater treatment system, which can effectively solve the environmental pollution problem of the breeding industry, comprehensively consider the utilization of energy and resources to the greatest extent, and turn waste into resources, and Ammonia nitrogen in aquaculture wastewater is difficult to deal with the problem of reaching the standard

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