【摘要】 通过热动力学分析、理论计算和试验,确定在碱性条件下用NaClO作氧化剂,Na2S和FeS-O4作还原剂处理混合电镀废水的工艺流程,并通过计算和试验确定了Na2S和FeSO4的最佳药剂比为:Na2S80%～90%,FeSO410%～20%。Na2S+FeSO4比单独使用FeSO4少产生60%～70%的污泥。该工艺在实际工程运行过程中效果良好。更多还原

【Abstract】 The technological process for the disposal of mixed electroplating wastewater under alkaline condition was chosen by thermodynamic analysis, throretical calculation, and experiment investigation. In this process, NaClO was chosen as oxidant, Na₂S and FeSO₄ as reducer. And also by theoretical calculation and experiment investigation, the optimal radio of Na₂S to FeSO₄ as: Na₂S 80-90 per cent, FeSO₄ 10-20 per cent was detemined. Using Na₂S as oxidant can reduce sludge quantity by 60-70 per cent in comparison with using FeSO₄ only. A practical real project by this technology has already gotten better results.更多还原