摘要
通过动态实验,研究了高砷饮用水的不同进水流速和不同砷(Ⅴ)浓度对新型载铁(Ⅲ)-配位体交换棉纤维吸附剂[Fe(Ⅲ)-LECCA]去除砷(Ⅴ)的效果。当1mg/L高砷饮用水,在2.8mL/min的流速下,通过内装Fe(Ⅲ)-LECCA 6.3mL、径高比为1:11的吸附柱时,饮用水出水砷浓度符合世界卫生组织(WHO)规定饮水砷标准(0.01mg/L),流出饮用水的穿透体积为2.4L,饱和点的工作吸附容量高达73.63mg/g。出水中有关各项水质指标均符合我国生活饮用水卫生标准(GB5749—85)。
Effects of concentration and flow rate of influent drinking water containing arsenic(V) on the novel Fe (HI)-LECCA removing arsenic(V) have been studied. At 26.7BV/h flow rate, Img As(V)/L drinking water flowed through the adsorption column, which contained 6.3ml adsorbent and the ratio of diameter to height of the column was 1:11. The arsenic(V) concentration of effluent drinking water agreed with WHO stringent arsenic standard of drinking water, the other qualities of effluent drinking water fit to living drinking water quality standard of China. The breakthrough volume of effluent drinking water was 2.4L and the operation capacity of arsenic(V) of Fe(Ⅲ)-LECCA was. 73.63mg/g at saturation point. It showed that Fe(Ⅲ)-LECCA could efficiently and selectively remove arsenic (V) from drinking water.
出处
《上海环境科学》
CAS
CSSCI
CSCD
北大核心
2003年第7期468-471,共4页
Shanghai Environmental Sciences
基金
国家自然科学基金
编号 29977010
天津市自然科学基金资助
编号993604111
