摘要
以稻草为原料，用金属铬工业生产中氢氧化铬反应工序排出的废液作碱源，制成稻草黄原酸酯，并用其处理模拟含铬废水和实际含铬废水。考察了废水ｐＨ、处理剂用量及反应时间对铬脱除率的影响。对铬的脱除机理进行了探讨。含铬废水经处理后，Ｃｒ（Ⅵ）的残留浓度可降至０．０５ｍｇ／Ｌ以下。
Straw xanthate was prepared by using straw as raw material and taking effluent from chromium hydroxide reaction unit of metal chromium production as alkali source.It was used in the treatment of both simulated and real chromium containing wastewater.The effects of waste water pH,xanthate dosage and reacton time on chromium removal efficiency were investigated and the mechanism of chromium removal with straw xanthate was discussed.The concentration of residual Cr(Ⅵ) in the treated wastewater could be reduced to less than 0.05mg/L.
出处
《化工环保》
CAS
CSCD
北大核心
1998年第5期281-284,共4页
Environmental Protection of Chemical Industry
