摘要
利用静态试验研究了pH和腐殖酸对高铁酸盐预处理去除铅、镉的影响 .结果表明 :高铁酸盐预处理对水中微量铅、镉有良好的去除效果 ,1mg/L高铁酸盐可使铅、镉的去除率比单纯硫酸铝混凝的铅、镉去除率提高 2 0 %左右 .中性和碱性条件下铅、镉的去除率均高于酸性条件 ,铅的去除率高于镉 .水中腐殖酸浓度升高使铅的去除率降低 ,对镉的去除率影响不大 ,高铁酸盐能够部分消除腐殖酸的影响 。
A static test was conducted to evaluate the effect of pH and humic acid on removal of trace lead and cadmium from the water by ferrate pretreatment. It was found that the removal efficiency of lead and cadmium was promoted by 20 percent by ferrate pretreatment compared to coagulation treated with aluminium sulfate only. A better removal was achieved in neutral and basic condition than in acid condition, the removal efficiency of lead is higher than that of cadmium. The removal efficiency of lead decreased while the humic acid concentration increased, and the negative effect of humic acid on lead removal could be reduced to some extent by ferrate pretreatment.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2003年第5期545-548,共4页
Journal of Harbin Institute of Technology
基金
哈尔滨工业大学校基金资助项目 (HIT .2 0 0 1.5 3 )
