摘要
目的解决在新的反硝化同步脱氮除磷工艺中,同一处理流程很难达到除磷脱氮过程协调稳定运行的问题.方法在SBR反应器中用传统活性污泥做为种泥驯化反硝化菌脱氮除磷,并进行静态试验改变其温度、COD质量浓度及不同运行阶段时间,以此来考察其生长和控制特性以及影响参数.结果试验表明反硝化同步脱氮除磷工艺中温度,COD浓度,电子受体浓度,以及运行时间等因素对其运行具有决定性作用,并且对于同一周期来说,厌氧和缺氧时间比维持在1∶2,反硝化作用除磷最佳.结论分析结果表明反硝化作用除磷的最佳温度为30℃,而最佳COD质量浓度为140 mg/L时反硝化作用较稳定并能达到同步除磷脱氮的效果.
The microorganisms in the same process related to N and P removal are different in characteristic and the optimal metabolic conditions make it difficult for the operation to be in phase and stable. Therefore, conducting the experiment is to research into the characteristics of denitrifying bacteria which are domesti- cated in traditional active sludge. The result shows that such factors as temperature, the concentration of COD and electronic receptor play very important roles in domesticating denitrifying bacteria for biological phosphorus removal. The best temperature is 30℃, and the optimal concentration of the COD is 140 mg/L. Besides, the best proportion of the time of the two phases is 2 ： 1. The conclusions can provide reference for the control of the domestication.
出处
《沈阳建筑大学学报（自然科学版）》
EI
CAS
2007年第2期284-287,共4页
Journal of Shenyang Jianzhu University：Natural Science
基金
国家"863"科研子课题(2003AA601010)
辽宁省自然科学基金资助项目(HJ-200602)
关键词
生物除磷
反硝化作用
电子受体
反硝化除磷
biological phosphorus removal （BPR）
denitrifying action
electronic receptor
denitrifying phosphorus removal
