摘要
研究了硫酸亚铁、亚硫酸氢钠、亚硫酸钠、焦亚硫酸钠 4种还原剂处理含铬废水时的还原性能 ,用吉布斯自由能分析了pH值对还原效果的影响。通过试验确定最佳加药量。用硫酸亚铁和亚硫酸氢钠调试含铬废水 ,最后选用亚硫酸氢钠还原剂。
The reduction properties of four reducing agents:FeSO 4,NaHSO 3,Na 2SO 3 and Na 2S 2O 5,in treating chromium containing wastewaters are investigated.The influence of pH value on the reduction effect is analyzed by Gibbs free energy.T he optimum dose of the chemicals is determined through tests.FeSO 4 and NaHSO 3 are used to treat chromium containing effluents.And finally NaHSO 3 is chosen as for the reducing agent.
出处
《电镀与环保》
CAS
CSCD
2005年第2期38-40,共3页
Electroplating & Pollution Control
