摘要
采用真空内循环负压法预处理制革含硫废水,结果表明,酸化室内的最佳pH值为3.5,在此条件下连续运转30～40min就可使硫的去除率达到95%以上,并可同步去除COD;回收的Na2S可用于制革工序。
The vacuum internal recycling negative pressure process was used for pretreatment of tannery wastewater with sulfur content.The result shows that under the optimal pH value of 3.5 in acidification cell,continuous running of 30-40 min can result in the sulfur removal up to more than 95%,with simultaneous removal of COD.Na_2S recovered can be used for tanning.
出处
《中国给水排水》
CAS
CSCD
北大核心
2004年第12期43-45,共3页
China Water & Wastewater
关键词
制革含硫废水
真空内循环负压法
经济分析
tannery wastewater with sulfur content
vacuum internal recycling negative pressure process
economic analysis
