天津科技大学学报2017，Vol.32Issue(6)：41-46,6.DOI:10.13364/j.issn.1672-6510.20160041
新型一体化污水净化槽的水力行为及脱氮效果研究
Study on the Hydraulic Behavior and Nitrogen Removal of a Novel Compact Wastewater Purifying Tank
摘要
Abstract
The process of partial nitrification combined with anammox was established in a novel purifying tank to remove nitrogen.NaCl tracer tests were performed to study the hydraulic behavior in aerobic and anaerobic zones of thepurifying tank at different water flow rates.The hydraulic parameters of this reactor were quantified to supply the basic parameters for the numerical model of this process.According to the plug flow ratio calculated by the retention time distribution,the aero-bic zone was consistent with the completely stirred tank reactor,while the anaerobic zone was consistent with the tanks-in-series model.Meanwhile,the production of nitrate was inhibited by controlling dissolved oxygen and pH,which is favorable for partial nitrification.The ratio of+4NH-N to2NO--N in the effluent of the aerobic zone approached to 1 when pH was between 8.0 and 8.5,the dissolved oxygen ranged from 0.8 to 1.2,mg/L,and the water flow rate got to 1,L/h.These are the favorable conditions for the anammox process in the following anaerobic zone.The+4NH-N removal efficiency could reach 70%, at the outlet of the purifying tank.关键词
短程硝化/厌氧氨氧化/生物膜/水力停留时间分布Key words
partial nitrification/anammox/biofilm/retention time distribution分类
资源环境引用本文复制引用
王昶,王登辉,胡洁,曾明,吴楠..新型一体化污水净化槽的水力行为及脱氮效果研究[J].天津科技大学学报,2017,32(6):41-46,6.基金项目
天津市科委绿色通道项目(15JCYBJC53700,14JCYBJC43700) （15JCYBJC53700,14JCYBJC43700）
教育部留学回国人员科研启动基金资助项目 （）
