Composite vertical flow artificial wetland deep purification livestock and poultry culture waste water treatment device, method and application thereof

Abstract

The invention belongs to the field of sewage treatment, and particularly relates to a composite vertical flow artificial wetland deep purification livestock and poultry culture waste water treatment device, a method and application thereof. A device realizing serial connection of downstream undercurrent, horizontal undercurrent and upstream undercurrent is built; a composite vertical flow artificial wetland deep purification livestock and poultry culture waste water treatment method is formed through wet land pool body filling material layer material selection and wetland plant selection and matching; the result shows that zeolite and arundo donax var versicolor composite vertical flow artificial wetland has the obvious effects on livestock and poultry culture waste water denitrification and antibiotic and resistance gene removal. The method has the advantages that the denitrification capacity of anaerobic ammonia oxidation and the like of the artificial wetland is enhanced; the wastewater contaminant removing rate is effectively improved. Compared with conventional undercurrent artificial wetland, the method has the advantages that the total nitrogen removal rate is improved by 30 percent or more; the waste water antibiotic concentration can be obviously reduced; the average removal rate of tetracycline reaches 80 percent or higher; the resistance gene concentration in the waste water is reduced by about one order of magnitude.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and more specifically relates to a treatment device for deep purification of polluted wastewater from livestock and poultry breeding in a compound vertical flow artificial wetland, as well as its method and application. Background technique [0002] The environmental pollution caused by large-scale livestock and poultry breeding has aroused the great attention of government departments at all levels and the widespread concern of the public. Especially the livestock and poultry breeding sewage is a high-concentration organic matter-polluted wastewater with complex pollutant components and great harm. In order to promote the sustainable development of large-scale and intensive livestock and poultry breeding, the country and localities urgently need to develop and utilize economical and efficient treatment technologies to reduce the concentration of pollutants in livestock and poultry breeding wastew...

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Problems solved by technology

[0004] The present invention mainly aims at the relatively outdated treatment process of pig farm digester wastewater with complex pollution components, excessive pollution load and substandard effluent quality, etc., and provides a treatment device for deep purification of livestock and poultry breeding polluted wastewater by composite vertical flow artificial wetland and its method, the deep purification of livestock and poultry breeding wastewater is realized through the construction of a treatment device for a composite vertical flow artificial wetland, the selection of wetland filler materials, and the selection of wetland plants

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