硫酸亚铁法深度处理城市生活污水的效能  

Performance of Advanced Treatment for Urban Domestic Sewage with Ferrous Sulfate Process

作　　者：谢鸿飞[1] 杨军[1] 何义亮[2] 

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070 [2]上海交通大学环境科学与工程学院,上海200240

出　　处：《净水技术》2013年第1期19-21,51,共4页Water Purification Technology

摘　　要：城市生活污水经过城市污水厂的一系列物理、化学以及生物处理后,COD和BOD的含量大大降低,但TN和TP仍然很高。该文采用硫酸亚铁法处理城市生活污水,经试验确定最佳处理浓度:在不影响出水色度的前提下,当硫酸亚铁投加量为5 mg/L时,各个指标的去除率均能达到很好的效果。试验结果表明:投加硫酸亚铁对COD、TP以及NH3-N等指标均有一定的去除能力,其中对TP的去除效果比较显著。COD and BOD concentration in urban domestic sewage has been reduced effectively after a series of physical, chemical and biological treatment in municipal sewage treatment plant. However the system has limited performance in removing TN and TP. Ferrous sulfate was introduced to enhance removal efficiency of TP. Bench scale test had been operated to optimize the dosage of fer- rous sulfate. Test results indicated that when the dosage of the ferrous sulfate is 5 mg/L, concentration of COD, TP, NH3-N can be ef- fectively removed without compromising the chroma. Pilot scale experiment results indicate that ferrous sulfate has positive perfor- mance in enhancing the removal efficiency of COD, TP and NH3-N.

关 键 词：城市生活污水 硫酸亚铁 投加量 深度处理 

分 类 号：X703.1[环境科学与工程—环境工程]