研究高铁酸盐对悦目颤藻 (Oscillatoriaamoena)肝毒素 (Microcystin LR)的降解效能及其与pH的关系 .结果表明 ,处理有机质含量很高的藻类肝毒素粗提液 ,当高铁投加量增到 4 0mg/L ,pH控制在 6～ 1 0 ,肝毒素几乎被完全降解 .同时高铁的还原产物Fe3+ 、Fe(OH) 3 发挥其助凝、絮凝的作用 ,对水体中有机质吸附沉降去除 ,TOC去除率达到 5 0 %左右 ,铁几乎无残留 .高效液相色谱分析发现 ,作用机制可能是高铁氧化或异构化Adda基团的共轭双键 ,使Adda基团的结构发生变化 ,从而降低其毒性 The effect of ferrate on the degradation efficiency of Microcystin LR and its relationship with pH was studied.The results showed that when the amount of high-iron ferroalloy increased to 4 0mg / L and pH 6 ~ 10, the toxin was almost completely degraded.At the same time, the reduction products of Fe3 + and Fe (OH) 3 of high-speed iron played the role of coagulation and flocculation, The removal rate of about 50%, almost no iron residue.High performance liquid chromatography analysis found that the mechanism may be high-speed iron oxide or isomerization Adda group conjugated double bond, the structure of Adda group changes, thereby reducing Its toxicity