旁路化学除磷对A^2/O工艺的影响研究  

Research on the Effect of the Bypass Chemical Phosphorus Removal in A^2/O Process

作　　者：陈蓓[1] 肖慧[1] 王启栋 

机构地区：[1]重庆大学西南资源开发及环境灾害控制工程教育部重点实验室,重庆400045 [2]浙江双益环保科技发展有限公司,浙江嘉兴314000

出　　处：《重庆师范大学学报（自然科学版）》2012年第2期80-83,共4页Journal of Chongqing Normal University:Natural Science

摘　　要：为考察旁路化学除磷对常规A2/O工艺系统脱氮除磷效果的影响,试验在常规A2/O工艺厌氧池末端接入旁路化学除磷池,并调节化学除磷池的pH值以达到除磷的目的。实验结果表明:改进后的A2/O工艺,当进水TN为40～50 mg·L-1、出水TN为11.8～15.5 mg·L-1时,TN平均去除效率为69.21%;当进水TP为4.2～8.9 mg·L-1、出水TP为0.50～0.75 mg·L-1时,TP平均去除效率为90.57%,较传统A2/O工艺,TN、TP去除率分别提高了4.04%、2.37%,说明旁路化学除磷对常规A2/O工艺系统脱氮除磷效果具有一定的改善作用。Abstract： In order to explore the impact of bypass chemical phosphorus removal on the effect of nitrogen and phosphorus removal of conventional A^2/O process, in this experiment, the pool of chemical removal of phosphorus is accessed at the end of anaerobic pool in the A^2/O process and adjust the pH value of pool to achieve phosphorus removal of purpose. Compared with the conventional A^2/O process the result shows that the average removal efficiency of TN is 69. 21% while the TN is 40 -50 mg · L-1 in the intake of water and 11.8- 15.5 mg · L^-1 in the outlet of water, the average removal efficiency of TP is 90. 57% while the TP is 4. 2 ~8.9 mg · L-1 in the intake and 0. 50 - 0. 75 mg · L^-1 in the outlet. The removal efficiency of TN in modified A^2/O process is increased by 4. 04% and the TP is 2. 37%. This indicates that the modified A^2/O process has some improvements on the effect of nitrogen and phosphorus. Key words：A^2/O process; bypass chemical phosphorus removal; removal of nitrogen and phosphorus

关 键 词：A2/O工艺 旁路化学除磷 脱氮除磷 

分 类 号：X502[环境科学与工程—环境工程]