%0 Journal Article
%T Cd~(2+) biosorption in wastewater by Penicillium janthinellum strain GXCR<br>微紫青霉菌Penicillium janthinellum菌株GXCR吸附废水中Cd~(2+)的研究
%A HUANG Xiao-Ting
%A MA Yi-Li
%A LI You-Zhi
%A <br>黄晓婷
%A 马义丽
%A 李有志
%J 菌物学报
%D 2009
%I 
%X Effects of five pretreatment methods on Cd~(2+) biosorption of the mycelia of Penicillium janthinellum strain GXCR were investigated. The result showed that pretreatments of oven dry at 80℃, homogenate of mycelia in deionized water, basified homogenate of mycelia (NaOH, 0.5mol/L) and homogenate of mycelia in C_2H_6SO (30%) solution could enhance Cd~(2+) biosorption efficiency, in which pretreatment of basified homogenate was most effective, increasing the Cd~(2+) biosorption by 117.96%; acidified homogenate of mycelia in H_2SO_4 (0.5mol/L) led to significant decrease in Cd2+ bioadsorption capacity. Biosorption of basified homogenate of mycelia followed Langmuir isotherm equation, suggesting that the Cd2+ biosorption is surface sorption. After four sorption-desorption cycles, the basified homogenate of mycelia still had a Cd~(2+) biosorption efficiency of 58.01%. Inflated spectrometry analysis indicated that basified homogenate pretreatment might affect radicals of -OH and C=O on the mycelial surfaces, and the principal radicals linking Cd~(2+) was-OH. The results also indicated that basified homogenate of the mycelia might have a potential for the treatment of electroplating wastewater.
%K fungi
%K pre-treatment
%K biosorption
%K desorption
%K mechanisms of biosorption
%K electroplating wastewater<br>Effects
%K of
%K five
%K pretreatment
%K methods
%K on
%K Cd2+
%K biosorption
%K of
%K the
%K mycelia
%K of
%K Penicillium
%K janthinellum
%K strain
%K GXCR
%K were
%K investigated.
%K The
%K result
%K showed
%K that
%K pretreatments
%K of
%K oven
%K dry
%K at
%K 80℃
%K homogenate
%K of
%K mycelia
%K in
%K deionized
%K water
%K basified
%K homogenate
%K of
%K my
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=CA9F815FCB0F62294C4266BB6F902ACB&aid=FA680EB6B291E6362A02E001001D5F8F&yid=DE12191FBD62783C&vid=D3E34374A0D77D7F&iid=B31275AF3241DB2D&sid=138D3449C4A7D4E9&eid=353B961D86F026C0&journal_id=1672-6472&journal_name=菌物学报&referenced_num=0&reference_num=28