【摘要】 本文提出了一种以FeSO₄·7H₂O为沉淀剂处理含硫废水的方法。实验确定的最佳条件为废水500毫升（稀释10倍后）,FeSO₄·7H₂O5.0克、NaOH0.4克、搅拌速度400转/分,反应时间3分钟。在该条件下沉淀后,排放液中Na₂S含量<0.3161克/升,Na₂S去除率>90％。更多还原

【Abstract】 A method of treating wastewater containing sodium sulfide by using FeSO₄7H₂O as a precipitating agent is suggested. The optimal conditions are as follows: wastewater. 500ml （after 10 times dilution）, FeSO₄7H₂O: 5.0g, NaOH. 0.4g, the speed for mixing: 400rpm; the reaction time: 3 minutes. Under such conditions, Na₂S concentration in the effluent is less than 0.3161g/L and the removal rate for Na₂S in the wastewater is greater than 90％.更多还原