高铁酸钾-PAM组合工艺处理微污染水的响应面优化  

Response surface optimization of micro-polluted water by potassium ferrate-PAM combined process

作　　者：张文莉 郭可欢 李杰[1] 谢慧娜 马玉石 朱雪燕 ZHANG Wen-li;GUO Ke-huan;LI Jie;XIE Hui-na;MA Yu-shi;ZHU Xue-yan(College of Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China)

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

出　　处：《应用化工》2020年第5期1163-1166,共4页Applied Chemical Industry

基　　金：宁夏河套地区农村饮用水与污水处理关键技术研究与示范项目(2016YFC0400705)。

摘　　要：采用高铁酸钾-PAM组合工艺处理含有一定浊度的微污染水,对其影响因素和去除效果进行了响应面优化实验。以PAM投加量、pH、慢速搅拌速率为影响因素,以CODMn、浊度去除率为响应值,利用Design-Expert软件对实验数据进行优化。结果表明,高铁酸钾-PAM组合工艺处理浊度为11 NTU左右微污染水的最佳工艺条件为:慢速搅拌速率为50.51 r/min,初始pH为7.64,PAM投加量为11.56 mg/L,此时浊度、CODMn的去除率分别为74.19%,78.0%。通过模型验证,确定采用高铁酸钾-PAM组合工艺处理微污染水是可取、有意义的。The micro-polluted water with certain turbidity was treated by potassium ferrate-PAM combination process,and the response surface optimization experiment was carried out on its influencing factors and removal effects.The PAM dosage,pH and slow agitation rate were taken as the influencing factors,and the COD Mn and turbidity removal rates were used as the response values.The experimental data were optimized by Design-Expert software.The results showed that the potassium ferrate-PAM combination process was used to treat the turbidity.The optimum process conditions for micro-polluted water around 11 NTU are:slow agitation rate of 50.51 r/min,initial pH of 7.64,and PAM dosage of 11.56 mg/L.The removal rate of turbidity and COD Mn is 74.19%,78.0%.Finally,through model verification,it is feasible and effective to treat the micro-polluted water by the potassium ferrate-PAM combination process.

关 键 词：高铁酸钾 PAM 响应面法 微污染水 

分 类 号：TQ920.1[轻工技术与工程—发酵工程] X703.1[环境科学与工程—环境工程]