Adsorption and degradation of methylene blue by microbial-distillers'grains porous carbon
In order to improve the additional value of waste distiller's resource utilization and achieve the efficient adsorption and degradation of methylene blue(MB)in printing and dyeing wastewater,microbial immobilized porous charcoal(M-DGPC)was prepared from Bacillus massiliogabonensis strain and porous charcoal material(DGPC),and characterized by FTIR,EDS and SEM for analyses on its structure,morphology as well as element composition.The effects of pH and salinity on the MB adsorption performance of M-DGPC were investigated by batch experiments,and the adsorption and degradation performance of M-DGPC on MB were compared between short-term experiment and long-term recycling.The results showed that the removal rates of MB in water could reach 97.0％and 98.6％at pH=6 and salinity of 1％.In addition,The MB removal rate of M-DGPC was about 99％after 6 cycles,and about 93％after 8 cycles,with MB degradation rate of about 50％.
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维普
