含汞废水怎样治理，含汞化合物有何特性？
How to treat mercury containing wastewater and what are the characteristics of mercury containing compounds?
从废水中去除无机汞的方法有硫化物沉淀法、化学凝聚法、活性炭吸附怯、金属还原法、离子交换法和微生物法等。 一般偏碱性含汞废水通常采用化学凝聚法或硫化物沉淀法处理。偏酸性的含汞废水可用金属还原法处理。低浓度的含汞废水可用活性炭吸附法、化学凝聚法或活性污泥法处理，有机汞废水较难处理，通常先将有机汞氧化为无机汞，而后进行处理。
The methods of removing inorganic mercury from wastewater include sulfide precipitation, chemical coagulation, activated carbon adsorption, metal reduction, ion exchange and microorganism Generally, the alkaline mercury wastewater is usually treated by chemical coagulation or sulfide precipitation. The wastewater containing mercury can be treated by metal reduction. Low concentration mercury containing wastewater can be treated by activated carbon adsorption, chemical coagulation or activated sludge. Organic mercury wastewater is difficult to treat. Organic mercury is usually oxidized to inorganic mercury first and then treated.