摘要
为了消除汞污染,采用硫化钠沉淀含汞废水。研究结果表明,出水中汞的含量小于国家规定的排放标准(0.05mg/L),沉渣体积小,且化学稳定性很好,易处置。此法具有工艺简单,操作方便,反应速度快,沉淀效率高,随废水中含汞浓度的高低投加不同量的硫化钠,根据废水量的大小,可连续处理和间歇处理,处理费用低等优点。该法可在中小型化工行业中推广应用。
The treatment process,which uses sodium sulfide to precipitate mercury-containing wastewater, has many advantages as follows:convenient operation, high reaction rate,high efficiency of precipitation, less than 0.05mg/L concentration of mercury in the wastewater output.continuous or intermittent-operation according to volume of wastewater to be treated,low treatment cost,small volume of the precipitates, good chemical stability and ease disposal.
出处
《中国环境科学》
EI
CAS
CSSCI
CSCD
北大核心
1995年第2期128-130,共3页
China Environmental Science
关键词
含汞废水
硫化钠
废水处理
mercury-containing wastewater, sodium sulfide.