Modeling Dissolved Ozygen Effects on Biological Nutrient Removal in a Sequencing Batch Reactor with Activated Sludge Model 2d
The simulation software developed by C++ Build language based on activated sludge model 2d (ASM2d) was carried out to address the effects of dissolved oxygen (DO) on the behavior of biological nutrient removal in a sequencing batch reactor (SBR) system. Changes of COD, nitrogen and phosphorus concentrations could be reliably predicted according to the time arrangement of every phase adapted to the SBR conditions. Better performance of biological nutrient removal could be achieved as long as DO concentration was above 1.5mg/L. If DO concentration was at a low level <1mg/L, the growth and activity of microbes would be inhibited, especially for nitrifying organisms and phosphorus accumulating organisms (PAOs). Consequently, the nutrient removal performance of the process would be affected significantly. Therefore, maintaining DO concentration above 1.5mg/L in the SBR activated sludge system was adaptive.
sequencing batch reactor biological nutrient removal modeling dissolved ozygen
GAO Pin LIU Zhen-hong XUE Gang ZHOU Mei-hua LIU Lu ZHAO Yun-zhi HAN Dan
College of Environmental Science and Engineering Donghua University Shanghai,China State Key Lab of Pollution Control&Resource Reuse Tongji University Shanghai,China
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）