膜-高效藻类塘工艺处理污水厂尾水  

Combined Membrane- High Rate Algal Pound for Advanced Treatment of Municipal Wastewater Treatment Plant Effluent

作　　者：谢艳艳[1] 吉凯锋 纪婧[1] 吾斯曼江.艾尼外尔 邱江平[1] 李旭东[1] 

机构地区：[1]上海交通大学农业与生物学院,上海200240 [2]云南省洱海县环境保护局,云南洱海671200

出　　处：《水处理技术》2016年第6期67-70,75,共5页Technology of Water Treatment

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07105-003;2014ZX07303-003)

摘　　要：将高效藻类塘系统与滤膜结合起来,进行了城市污水处理厂尾水深度净化的实验研究。结果表明,在水力停留时间为4 d,进水COD为20.91-72.55 mg/L,NH4^＋-N、TN和TP质量浓度分别为0.74-2.85、7.01-10.15和0.35-0.52 mg/L条件下,高效藻类塘与陶瓷膜联用工艺出水各指标平均浓度分别为14.00、0.65、0.90和0.05 mg/L,分别达到地表水环境质量标准规定的II、III、III和II类标准。不锈钢膜和陶瓷膜对于藻类的拦截过滤效果均能达到90%以上,在提升出水水质的同时,可稳定维持低浓度进水条件下高效藻类塘内的藻类浓度。由于陶瓷膜孔径过小,易发生膜污染,清洗需求频繁,综合考虑过滤效果以及系统运行的稳定性,优先选择不锈钢膜。A combined high rate algal pond and membrane separation process was applied for advanced treatment of municipal wastewater treatment plant effluent. The results showed that, under the conditions of 4 days HRT, the inflow concentration of COD vary from 20.91 to 72.55 mg/L, NH4＋-N vary from0.74 to 2.85 mg/L,TN vary from 7.01 to 10.15 mg/L,TP vary from 0.35 to 0.52 mg/L, the average effluent concentration of COD, NH4＋-N,TN and TP was14.00, 0.65, 0.90 and 0.05 mg/L respectively, which could reach the II, III, III and II level of surface water quality standards, respectively. The applied ceramic and stainless steel membrane could effectively separate alga as well as colloidal and macromolecules from water. The separation rate of alga was more than 90%. The ceramic membrane was relatively easy to be polluted and needed frequent cleaning since the average pore size was quite small.Stainless steel membrane was preferred while taking filtration efficiency and system stability into consideration.

关 键 词：高效藻类塘 污水厂尾水 不锈钢滤膜 陶瓷膜 

分 类 号：X703.1[环境科学与工程—环境工程]