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ORGANIC COMPOSITE POWDER CARRIER AND APPLICATION THEREOF IN ENHANCED BIOLOGICAL DENITRIFICATION OF MUNICIPAL WASTEWATER TREATMENT
ORGANIC COMPOSITE POWDER CARRIER AND APPLICATION THEREOF IN ENHANCED BIOLOGICAL DENITRIFICATION OF MUNICIPAL WASTEWATER TREATMENT
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机译:有机复合粉末载体及其应用在市政废水处理的增强生物反硝化中
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摘要
The present invention relates to microbial carriers for wastewater treatment, and in particular, relates to an organic composite powder carrier and its application for strengthening biological denitrification in municipal wastewater treatment. The organic composite powder carrier is compounded by a microbial carrier with a relatively large equivalent particle size and an organic alternative carbon source in the form of ultrafine powder. The composite powder carrier in the present invention includes a dedicated organic alternative carbon source, such as polyhydroxyalkanoates (PHA). The organic alternative carbon source can exclude the competitive relationship between microorganisms to ensure that denitrifying bacteria exclusively obtain electron donors required for denitrification. The composite powder carrier strengthens biological denitrification in municipal wastewater treatment, significantly improves denitrification efficiency, realizes deep biological purification of wastewater and ensures that the subject effluent complies with the strictest domestic discharge standards.
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