基于污水再生程的AO除磷工艺研究深度思考--159879924.docxVIP

PAGE \* MERGEFORMAT10 PAGE \* MERGEFORMATIV 基于污水再生全流程的A/O除磷工艺研究 摘 要 基于传统污水处理工艺存在的同步脱氮除磷之间的矛盾，张杰、李冬等研究者率先提出将A/O活性污泥法生物除磷工艺与厌氧氨氧化生物自养脱氮工艺相结合的“污水再生全流程”工艺。 本试验针对“污水再生全流程”中的首端处理单元——A/O除磷工艺进行了研究。试验主要从A/O除磷系统准佳运行参数的研究、系统中氮素的转化、COD的同时去除以及群落结构分析几个方面进行研究。通过对相关运行参数的优化调整，确立了系统的准佳运行参数，实现了出水磷和有机物达到国家城镇污水处理厂一级A排放标准的要求；同时最大限度地保留了出水中氨氮的浓度，并且无亚硝酸盐氮和硝酸盐积累，为全流程中后续的脱氮单元提供了适宜的进水。与此同时，还将反应器宏观运行与微生物微观??化相结合，在研究宏观运行工况基础上，开展了微生物实验，进行分子生物学的DGGE分析，探索了反应器宏观变化的同时，研究了微观微生物种群的变化规律。 关键词：污水再生全流程；A/O除磷工艺；COD污泥负荷率；变性梯度凝胶电泳 ABSTRACT  HYPERLINK app:ds:in%20view%20of \t _self In view of traditional nutrient removal process in which N, P removal can’t be taken into account at the same time, Zhang Jie, Li Dong etal proposed the Technology of “the Integrated Process of Reclamation for Municipal Sewage”, which is the combination of the A/O activated sludge phosphorus removal process and anammox autotrophic nitrogen removal process. The subject of this experiment is the starting processing unit of “the Integrated Process of Reclamation for Municipal Sewage”——A/O phosphorus removal process. The A/O phosphorus removal system’s quasi-good operating parameters, the nitrogen transformation in the system and the analysis of microbial community structure was studied in this experiment. Through the optimization of operating parameters adjustment, established the quasi-goodoperating parameters of the system, the reactor effluent TP and COD can meet the national emission standards, and maximize the retention of the effluent ammonia concentration for the whole process unit to provide follow-up of nitrogen and water. Meanwhile, based on the study of operating conditions carried out microbial experiments, DGGE analysis of molecular biology to explore the variation of the microbe while study the macroscopic changes in the reactor. Keywords: the Integrated Process of Reclamation for Municipal Sewage; A/O phosphorus removal process; COD sludge loading rate; denaturing gradient gel electrophoresis 目 录  TO