FND-CASS工艺处理城市污水的试验研究  

Experimental Study on Municipal Sewage Treatment by FND-CASS

作　　者：杨爽[1] 赵鹏程[2] 

机构地区：[1]安阳工学院化学与环境工程系,河南安阳455000 [2]徐州空军学院航空油料物资系,江苏徐州221000

出　　处：《工业安全与环保》2011年第10期13-15,共3页Industrial Safety and Environmental Protection

摘　　要：为进一步提高循环式活性污泥工艺(CASS)的脱氮除磷效果,改变其运行方式,采用好氧脉冲曝气,提出频繁硝化-反硝化循环式活性污泥工艺(FND-CASS)。结果表明,FND-CASS工艺与CASS工艺相比,在去除污水中有机物方面能力略有下降,但在脱氮除磷方面具有明显的优势。在同样的进水流量且DO浓度控制较低的运行条件下,FND-CASS工艺的TN和TP的去除率分别达到80.52%、80.44%,而通常的CASS工艺TN和TP的去除率仅为73.51%、67.00%。For further enhancing nitrogen and phosphorus renroval rate by Cyclic Activated Sludge System （CASS）, this paper studies the treated effect of Frequent Nitrification and Denitrification Cyclic Activated Sludge System （FND- CASS） process on nitrogen and phosphorus removal by altering the performance way of CASSprocess. Compared to CASS, FND - CASS process is lower than the CASS process in organic substance removal and ammoniacal nitrification, but it is advantageous in nitrogen and phosphorus removal. Under the same condition of inflow and lower DO concentration, the ratios of nitrogen and phosphorus removal by the FND- CASS process can reach 80.52% and 80.44% respectively, but the ratios of those by CASS process can only reach 73.51% and 67% respectively.

关 键 词：FND—CASS工艺 好氧脉冲 同步硝化反硝化 脱氮除磷 

分 类 号：X703[环境科学与工程—环境工程]