短程硝化反硝化生物脱氮技术  

Biological nitrogen removal with nitrification and denitrification via nitrite pathway

作　　者：祝贵兵[1,2] 彭永臻[1,3] 郭建华[1] 

机构地区：[1]哈尔滨工业大学市政环境工程学院,哈尔滨150090 [2]中国科学院生态环境研究中心环境水质学国家重点实验室,北京100085 [3]北京工业大学北京市水质科学与水环境恢复工程重点试验室,北京100022

出　　处：《哈尔滨工业大学学报》2008年第10期1552-1557,共6页Journal of Harbin Institute of Technology

基　　金：国家自然科学基金国际重大合作项目(50521140075);国家高技术研究发展计划重大科技专项项目(863-2004AA601020)

摘　　要：为防止湖泊和其他受纳水体富营养化的发生,各城市污水处理厂均应用新的运行方法和控制策略进行脱氮除磷.随着新的微生物处理技术的介入,污水处理设施的功效得到显著提高.短程硝化反硝化技术应用于处理高氨氮质量浓度和低C/N比污水时,在经济上和技术上均具有较高的可行性.成功实现短程硝化反硝化技术的关键是将硝化反应控制并维持在亚硝酸盐阶段,不进行亚硝酸盐至硝酸盐的转化.从不同角度对成功实现、维持和应用短程硝化反硝化技术的方法进行探讨,主要包括控制DO质量浓度、调节污泥龄、反应温度、系统pH、底物负荷、工艺运行方式、抑制剂等.The efficiency of wastewater treatment practices can be significantly improved through the introduction of new microbial treatment technologies. In order to meet increasing stringent discharge standards, new applications and control strategies for the sustainable removal of ammonium from wastewater have to be imple- mented. Partial nitrification to nitrite was reported to be technically feasible and economically favorable, especially when the wastewater with high ammonium concentrations or low C/N ratios was treated. For successful implementation of the technology, the critical point is how to maintain the partial nitrification of ammonium to nitrite. Nitritation can be obtained by selectively inhibiting the nitrite oxidizing bacteria through appropriate regulation of the system＇ s DO concentration, microbial SRT, pH, temperature, substrate load, operational and aeration pattern, inhibitor and so on. This review addresses the microbiology, its consequences for application, the current status regarding application, and its future developments.

关 键 词：污水处理 生物脱氮 短程硝化 反硝化 SHARON工艺 短程硝化反硝化 

分 类 号：TU991.2[建筑科学—市政工程]