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Malachite Green Decolorization Performance of Mold Hyphal Pellet WL

WANG Gno-hui(Sch.of Environ. & Engin.,Zhongshan Univ.,Guangzhou 510275)  
Malachite green(MG)decolorization performance of mold hyphal pellet WL and its decolorization effectsin practical dye waste water was studied.The results showed that WL possessed high removal activity on malachitegreen.Decolorization rate of MG after 48h.at 30℃,90r/min in respective MG concentration of 100,200,350,and 500mg/L were as high as 100%,99.7%,96.1%,and 90.1% respectively.Under nutritional environment thedecolorization effects of MG performed even better,however,under non-nutritional environment it performed poorly,the rate WaS only 18.3%.Sugar cane juice could be used as good carbon source,in which the decolorization rate ofMG Was 97.1%;when soybean milk and milk were used as nitrogen sources,the decolorization of MG WaS very obvious,the rate were 93.4% and 94.2% respectively.The decolorization rate of live hyphal pellet was as high as99.4%,while the dead one was only 1.9%.Waste milk could be used as good nutrition for cultivation of the pellet,and pellet cultivated with waste milk possessed high decolorization activity.The decolorization rate of WL in practicaldye waste water was 90.3%,demonstrated very good application prospect.
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