未纯化高铁酸盐原液处理含硫废水的研究

Treating Waste Water Containing S^(2-) with Crude Solution of Ferrate(VI)

用次氯酸盐氧化法制得的高铁酸盐 ,与次氯酸盐的碱性混合溶液 ,直接用于去除水样中的 S2 -,比纯高铁酸盐、次氯酸盐效果更佳 .将之用于 2 5 mg/L S2 -含量的油田采出水的净化脱硫 :投放 Na2 Fe O42 4.9mg/L,可达油田回注水标准 ;投放 Na2 Fe O41 9.92 mg/L,并外加微量助剂 。

Alkaline crude solution of ferrate contained ClO - prepared by hypochlorite oxidatiion, and used directly to get rid of S 2- in the water sample. The treatment result is better than that of pure ferrate or pure hypochlorite used to treat S 2- . The alkaline crude solution is also used to remove S 2- from the waste water containing 25mg/L of S 2- in oilfield. If 24.9mg/L of Na 2FeO 4 is added to this waste water, the water resulted from treating can arrive at the standard of the recycle water in oilfield. If 19.92mg/L of Na 2FeO 4 and trace assistants are added to it, the water resulted from treating can arrive at the standard of the drink.