摘要
分析对比现有的处理技术,选择投碱调节pH值的方法处理受重金属镉微污染的水源水。先在实验室试验出最佳的碱投加量为15mg/L,在某水厂进行中试,结果发现投加生石灰20 mg/L,镉的去除率达75%。中试试验表明该方法简单可行,除镉效果理想,而且对正常生产影响不大。并对两种加氯消毒方式进行比较试验后,发现二次加氯的消毒方式更简单。
Through comparison and analysis of the present water treatment techniques, the methods to dose alkali and adjust pH were selected for treatment of cadmium-polluted raw water. First the optimal akalia dosage was derived to be 15mg/L in lab, then the pilot test was conducted in a water works; it was discovered that, when dosing quick lime 20mg/L, cadmium removal rate reached to 75%. The pilot test results showed that the method was simple and feasible and had ideal cadmium removal effect, moreover it had less influence on production.
出处
《水处理技术》
CAS
CSCD
北大核心
2007年第5期61-62,77,共3页
Technology of Water Treatment
关键词
给水处理
除镉
投碱
调节pH值
drinking water treatment
cadmium removal
cadmium dosing
pH adjustment.
