高铁酸钾的制备及其去除微污染水中双酚A能力的研究  

PREPARATION OF POTASSIUM FERRATE AND ITS ABILITY OF REMOVING BISPHENOL A IN MICRO-POLLUTED WATER

作　　者：周卫威[1] 吉芳英[1] 何莉[1] 

机构地区：[1]重庆大学三峡库区生态环境教育部重点实验室,重庆400045

出　　处：《水处理技术》2013年第10期72-75,共4页Technology of Water Treatment

基　　金：教育部科技创新工程重大项目培育资金项目资助(708071)

摘　　要：探讨了次氯酸盐氧化法制备的高纯度高铁酸钾对微污染水中双酚A（BPA）的降解效果以其影响因素。结果表明，采用次氯酸盐氧化法自制的高铁酸钾的质量分数可以稳定在90％以上；在pH为5、7．1和9时，高铁酸钾降解BPA效果较好，降解率分别为95．4％、99．0％和98．5％；BPA降解率与高铁酸钾投加量之间的关系符合Slogistic模型，高铁酸钾的投加量越大，BPA去除率越高，但m（K2FeO4）：m（BPA）大于5时，去除率增长缓慢。高铁酸钾去除微污染水中BPA的优化pH在5～9，K2FeO4与BPA的质量浓度比应当控制在5～6，优化反应时间为10min。The degradation effect and influencing factors of bisphenol A （BPA） in micro-polluted water by potassium ferrate prepared via hypochlorite oxidation method were investigated. The results show that the purity of potassium ferrate synthesized by hypochlorite oxidation method can stabilize above 90%. Under the pH of 5, 7.1 and 9, the removal rate of BPA can reach to 95.4%, 99.0% and 98.5%, respectively. The relationship between the removal rate of BPA and the mass concentration ratio of potassium fen＇ate and BPA m（K2FeO4）：m（BPA） accords with the Slogistic model, which means tha t the better removal effect will be achieved when the more dose of potassium ferrate is added. However, when m（K2FeO4）：m（BPA） reaches to 5 or more, the increment of the removal rate becomes slow. The best reaction conditions for potassium ferrate to remove BPA from micro-polluted water are pH=5 ~9,m（K2FeO4）：m（BPA）=5~6 and 10 min of reaction time.

关 键 词：双酚A 高铁酸钾 微污染水 内分泌干扰物 

分 类 号：TU991.27[建筑科学—市政工程]