ENHANCED SEWAGE BIOLOGICAL NITROGEN AND PHOSPHORUS REMOVAL METHOD BASED ON POLYHYDROXYALKANOATES METABOLIC REGULATION
专利汇可以提供ENHANCED SEWAGE BIOLOGICAL NITROGEN AND PHOSPHORUS REMOVAL METHOD BASED ON POLYHYDROXYALKANOATES METABOLIC REGULATION专利检索，专利查询，专利分析的服务。并且The invention belongs to the technical field of environmental protection, and relates to a method for enhanced biological removal of phosphorus and nitrogen from sewage on the basis of metabolic regulation of polyhydroxyalkanoate, comprising the following steps: leading particulate organic substances obtained by primary sedimentation of sewage and excess sludge discharged from a secondary sedimentation tank into a sludge thickening tank for condensation; placing the condensed organic wastes into a polyhydroxyalkanoate precursor production reactor to synthesize polyhydroxyalkanoate precursors through anaerobic fermentation; after removing nitrogen and phosphorus, pumping the liquid into a polyhydroxyalkanoate precursor reservoir; pumping the polyhydroxyalkanoate precursors into a polyhydroxyalkanoate production reactor to produce polyhydroxyalkanoate; pumping into a conventional bioreactor for removal of phosphorus and nitrogen from sewage to conduct a process for biological removal of phosphorus and nitrogen from sewage. The present invention raises the removal rate of nitrogen and phosphorus up to around 80% to 95%, and the treated effluent water attains to the requirement of the Grade 1A discharge standard for sewage treatment plants. The method has the advantages of easy-to-control processes, low greenhouse gas emissions and reduced sludge production, and low cost of technical renovation and the like.，下面是ENHANCED SEWAGE BIOLOGICAL NITROGEN AND PHOSPHORUS REMOVAL METHOD BASED ON POLYHYDROXYALKANOATES METABOLIC REGULATION专利的具体信息内容。
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