Although chlorination can inactivate most of the microorganisms in water but protozoan parasites like C. parvum oocysts and Giardia cysts can resist against it. Therefore, many researches have been conducted to find a novel method for water disinfection. Present study evaluated the synergistic effect of H2O2 and ferrate followed by UV radiation to inactivate Bacillus subtilis spores as surrogate microorganisms. Response surface methodology(RSM) was employed for the optimization for UV/H2O2/ferrate and H2O2/ferrate processes. By using central composite design(CCD), the effect of three main parameters including time, hydrogen peroxide, and ferrate concentrations was examined on process performance. The results showed that the combination of UV, H2O2 and ferrate was the most effective disinfection process in compare with when H2O2 and ferrate were used. This study indicated that by UV/H2O2/ferrate, about 5.2 log reductions of B. subtilis spores was inactivated at 9299 mg/l of H2O2 and 0.4 mg/l of ferrate concentrations after 57 min of contact time which was the optimum condition, but H2O2/ferrate can inactivate B. subtilis spores about 4.7 logs compare to the other process. Therefore, the results of this research demonstrated that UV/H2O2 /ferrate process is a promising process for spore inactivation and water disinfection.

尽管氯化作用可以使水中的大多数微生物失活，但是原生动物的寄生虫（如细小隐孢子虫卵囊和贾第虫囊肿）可以抵抗这种微生物。因此，进行了许多研究以找到一种新颖的水消毒方法。目前的研究评估了H2O2和高铁酸盐的协同作用，接着是UV辐射以灭活枯草芽孢杆菌孢子作为替代微生物。采用响应面法（RSM）对UV / H2O2 /高铁酸盐和H2O2 /高铁酸盐工艺进行了优化。通过使用中央复合设计（CCD），研究了时间，过氧化氢和高铁酸盐浓度这三个主要参数对工艺性能的影响。结果表明，紫外线的结合，与使用H2O2和高铁酸盐相比，H2O2和高铁酸盐是最有效的消毒过程。这项研究表明，通过UV / H2O2 /高铁酸盐，在接触时间57分钟后的9299 mg / l H2O2和0.4 mg / l高铁酸盐浓度下，枯草芽孢杆菌的孢子减少约5.2 log失活，这是最佳条件，但是与其他过程相比，H2O2 /高铁酸盐可以灭活枯草芽孢杆菌孢子约4.7倍。因此，这项研究的结果表明，UV / H2O2 /高铁酸盐工艺是孢子灭活和水消毒的有前途的工艺。枯草芽孢约4.7日志与其他过程相比。因此，这项研究的结果表明，UV / H2O2 /高铁酸盐工艺是灭活孢子和水消毒的有前途的工艺。枯草芽孢约4.7日志与其他过程相比。因此，这项研究的结果表明，UV / H2O2 /高铁酸盐工艺是孢子灭活和水消毒的有前途的工艺。