Yuan Bao-ling, Li Kun-lin, Deng Lin-li, Zhang Zhi-dong
College of Environment & Resources, Fuzhou University, Fuzhou 350002, China.
Huan Jing Ke Xue. 2006 Feb;27(2):281-4.
Ferrate is multi-function agent in water treatment and shows great oxidizing ability and excellent purifying effect. This experiment evaluated the performance of ferrate for arsenic removal. Experimental results show that the best rate of ferrate and arsenic (III) is 15:1, the efficiency of As removal can be achieved 98%, and the residual concentration of As3 + is < 0.05 mg/L. The optimum pH is 5.5 to approximately 7.5. The oxidative and coagulation time is 10 min and 30 min respectively. The salinity and hardness did not interfere with removal arsenic. This method is easy, very effective comparing with ferric method and KMnO4-Ferric method.
高铁酸盐是一种用于水处理的多功能试剂，具有很强的氧化能力和出色的净化效果。本实验评估了高铁酸盐去除砷的性能。实验结果表明，高铁酸盐与砷（III）的最佳比例为15:1，砷的去除效率可达98%，As3+的残留浓度<0.05mg/L。最佳pH值为5.5至约7.5。氧化时间和混凝时间分别为10分钟和30分钟。盐度和硬度不影响砷的去除。与铁盐法和高锰酸钾-铁盐法相比，该方法操作简便、效果显著。
