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Fe2+、Mn2对生物膜载体表面改性对微生物的活性及胞外多聚物的影响

Si-ping JI,Yong-ming CHUAN,Xue-wei HU,Shi-xiong WANG,Qi-ying XIE,Xiang-jun YANG,Li-bin GAO

Journal of Yunnan University of Nationalities(Natural Sciences Edition)（2018）

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Abstract
采用FeCl2和MnSO4溶液对生物膜载体进行改性,并使用扫描电镜(SEM)和X线光电子能谱(XPS)考察改性方法对载体和生物膜的影响.研究表明,Fe2+、Mn2+改性均能使载体表面形成腐蚀坑,增加表面粗糙度;载体改性有助于生物膜对Mg、Ca等营养元素的吸收;并可有效增加生物膜的含量,其胞外多聚物(EPS)分别增加了2.02倍和2.95倍.
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Key words
biofilm,carrier,surface modification,extracellular polymers
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