[Efficiency of microcystin-LR removal by photocatalysis combined with ferrate oxidation].
This study focused on enhancing photocatalytic degradation of microcystin-LR following the addition of ferrate to the process. The degradation efficiency of ferrate and the photocatalysis was 54% and 63% respectively. However, when ferric or ferrate was added to the photocatalytic process, a significant enhancement in the rate of the photocatalytic degradation was observed and the efficiency can be increased to 73% or 100%. The results demonstrate that relatively low ferrate doses (10 mg/L) are sufficient not only for pre-degradating amount of toxin but also for supplying the Fe3+ enhance the rates of photocatalytic process to destroy the toxin further. At the same time, it indicates the advantage of using ferrate with the photocatalytic system comparing with ferric.
Yuan
Bao-ling
BL
College of Environment & Resources, Fuzhou University, Fuzhou 350002, China.
Chen
Yi-ping
YP
Zheng
Xue-qing
XQ
Liu
Hui-juan
HJ
Qu
Jiu-hui
JH
D002384:Catalysis; D007501:Iron / Q000737:chemistry*; D008387:Marine Toxins; D052998:Microcystins / Q000737:chemistry* / Q000302:isolation & purification; D010084:Oxidation-Reduction; D010777:Photochemistry / Q000379:methods; D018508:Water Purification / Q000379:methods*
D008387:Marine Toxins; D052998:Microcystins; C017311:ferrate ion; D007501:Iron; C057862:cyanoginosin LR