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《Electroplating & Pollution Control》 2011-04
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Preparation of Microbio-Sorbent Material and Treatment of Wastewater Containing Cr(Ⅵ)

HUANG Xiao-xia,LIU Ru(The School of Chemistry and Environment,Jiaying University,Meizhou 514015,China)  
A gradual domestication method with a low mass concentration Cr(VI) solution was used in the experiment.A strain of microorganism,which was selected from the activated sludge of electroplating factory and could effectively adsorb Cr(VI) was prepared by gradual domestication method.From individual and group morphological identification,the germ was identified as alternaria,which,after cultured,was prepared into a microbio-sorbent material by using different pretreatment methods for treating an analog Cr(VI) containing wastewater.The experiment shows that the optimal adsorption conditions are: pH 2.0,time 105 min,dosage 3.0 g,temperature 35 ℃ and the microbio-sorbent was processed with 0.1 mol/L NaOH.Under such conditions,a wastewater containing 50 mg/L of Cr(VI) can be treated up to the national integrated wastewater discharge standards.
【CateGory Index】: X703
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