载银烧结炭滤芯净化野外地表水效果评价

Evaluation of Purification Effect of Wild Surface Water by Silver Loaded Sintering Carbon Filter

为解决野外净水器易滋生细菌的问题,采用浸渍法制备载银烧结活性炭滤芯,用其净化龙洞水、珠江水和麓湖水三种不同污染程度的野外地表原水,研究不同载银量对滤芯的除菌性能和水质的影响,并评估其净水安全性和持久性。结果表明,载银量越大,净水滤芯的除菌性能越好。当载银量为1%时,滤芯的净水水质可以达到《生活饮用水卫生标准》(GB 5749—2006)的要求,净水量可以满足单兵在野外环境下7 d内的饮用水需求。同时,载银烧结活性炭滤芯具有良好的抗银流失性能,具有持久、高效的抑菌性能,且7 d内饮用其净水无安全风险。

To prevent bacterial breeding in outdoor water purifiers, a silver loaded sintering carbon filter was prepared by impregnation method and used to purify raw water collected from Longdong reservoir, Pearl River and Lu Lake with different levels of contamination. Effect of silver content on antibacterial properties of the filter and water quality was studied, and purification safety and persistence of the filter were evaluated. The results showed that the filter exhibited better antibacterial properties with higher silver contents. When the silver content was maintained at 1%, the effluent quality of the filter could reach the requirement of Standards for Drinking Water Quality could also meet the individual solder＇ s drinking water demand （GB 5749 -2006）, and the water yield within 7 days in the wild. Furthermore, the filter had good resistance to silver release and persistent and effective antibacterial performance, and there was no safety risk to drink the purified water within 7 days.