利用次氯酸钠去除制革污泥中的铬

摘要

In this paper, the treatment of tannery sludge by sodium hypochlorite has been researched. The results showed that 100% of Cr (Ⅲ) in the tannery sludge was removed by treating with 6%concentration of sodium hypochlorite, the liquid-solid ratio 22 g/g soil, temperature 60 ℃, reaction time 80min.%本文采用次氯酸钠对制革污泥进行处理，研究了次氯酸钠去除制革污泥中铬的最佳条件。实验发现当次氯酸钠浓度为6%、液固比为22g溶液/g泥、温度60℃、反应时间为80min时，铬浸出率可达100%。