低水头、低通量浸没式直接超滤工艺净水效能研究  

Water Purification Efficiency of Submerged Direct Ultrafiltration Process with Low Head and Low Flux

作　　者：陈楠[1] 李星[1] 杨艳玲[1] 瞿芳术[2] 唐小斌[2] 李圭白[2] 陈杰 

机构地区：[1]北京工业大学建筑工程学院,北京100124 [2]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090 [3]海南立升净水科技实业有限公司,海南海口571126

出　　处：《中国给水排水》2016年第19期53-57,共5页China Water & Wastewater

摘　　要：针对我国农村饮用水处理技术落后、设施管理水平低的现状,研发出基于低水头、低通量原水直接超滤工艺。以水质良好的水库水为处理对象,研究了直接超滤工艺长期运行的稳定性和对污染物的去除效果,探讨了排泥对直接超滤效能的影响,对比了两种材质超滤膜的通量及除污效能。试验结果表明,直接超滤工艺在65 cm过滤水头和5~6 L/(m^2·h)膜通量条件下可保持长期稳定运行,出水浊度低于0.07 NTU,出水细菌总数和总大肠菌群数均满足《生活饮用水卫生标准》(GB 5749—2006)的要求。采取排泥措施可以显著提高膜池内溶解氧浓度,同时氨氮和UV_(254)去除率明显增加。Aimed at the outdated technology of rural drinking water treatment and low level of facilities management, the process of direct uhrafihration with low head and low flux was developed. The stability and pollutant removal efficiency of the process during a long-term operation for the treatment of a high-quality reservoir water were studied. The effect of discharging sludge on the efficiency of the direct uhrafihration process was investigated, and the flux and pollutant removal performance of two membrane materials were compared. The results indicated that the process could have a long-term stable operation at water head of 65 cm and flux of 5 to 6 L/（m^2·h）. The effluent turbidity was below 0.07 NTU, the total bacterial count and total coliform bacteria could both meet the Standards for Drinking Water Quality （ GB 5749 -2006）. The removal rates of ammonia nitrogen and UV254 were significantly improved due to the increased concentration of oxygen resulted from discharging sludge from membrane tank.

关 键 词：饮用水 低水头 低通量 直接超滤 膜污染 

分 类 号：TU991.2[建筑科学—市政工程]