用臭氧发生器产生的臭氧氧化模拟酸性含砷废水，在95℃下加热反应7 h合成臭葱石，考察了Fe(II)氧化速率及溶液初始pH值对砷去除率及臭葱石合成的影响. 结果表明，提高Fe(II)氧化速率及增大初始pH值均可促进As沉淀. 初始pH为2.0时通入臭氧，溶液中As的最终去除率可达89.64%，反应所得臭葱石颗粒尺寸较大、结晶良好.
The ozone generated by the ozone generator was used to oxidize lab made acidic arsenic-containing wastewater to synthesize scorodite at 95℃ for 7 h. The effects of oxidizing rate of Fe(II) and initial pH of the solution on the arsenic removal rate and the scorodite formation were studied. The results showed that increasing the oxidizing rate of Fe(II) and initial pH can enhanced As precipitation. With the ozone oxidation, 89.64% arsenic was removed from the solution at initial pH=2, and the scorodite has large particle size and good crystallization.
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