Effect of pH on chromium biosorption by chemically treated Saccharomyces cerevisiae

被引：0

作者：

Parvathi, K. ^{[1
]}

Nagendran, R. ^{[1
]}

Nareshkurnar, R. ^{[1
]}

机构：

[1] Anna Univ, Ctr Environm Studies, Madras 600025, Tamil Nadu, India

来源：

JOURNAL OF SCIENTIFIC & INDUSTRIAL RESEARCH | 2007年 / 66卷 / 08期

关键词：

biosorption; chromium; Saccharomyces cerevisiae; chemical pretreatment; pH;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of initial pH on biosorption by Saccharomyces cerevisiae of total chromium present in tannery effluent was investigated. Maximum biosorption efficiency was evident at neutral pH with a metal removal efficiency of 99%. S. cerevisiae was then pretreated with NaOH and HCHO-HCOOH to study the role of proteins and amino acids, respectively, in biosorption. At pH 7, 9 and 11, biomass pretreated with NaOH exhibited significant biosorption as compared to raw biomass and that treated with HCHO-HCOOH. However, trend reversed at pH 2. At pH 4, untreated biomass exhibited maximum chromium sorption, when compared to that treated with NaOH and HCHO-HCOOH.

引用

页码：675 / 679

页数：5

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