Biosorption of chromium VI by free and immobilized Rhizopus arrhizus

被引：189

作者：

Prakasham, RS ^{[1
]}

Merrie, JS

Sheela, R

Saswathi, N

Ramakrishna, SV

机构：

[1] Indian Inst Chem Technol, Biochem & Environm Engn Grp, Hyderabad 500007, Andhra Pradesh, India

[2] CSIR, Reg Res Lab, Biochem Proc & Wastewater Technol Div, Trivandrum 695019, Kerala, India

来源：

ENVIRONMENTAL POLLUTION | 1999年 / 104卷 / 03期

关键词：

bioremediation; biosorption; chromium; heavy metal; Rhizopus arrhizus; wastewater treatment;

D O I：

10.1016/S0269-7491(98)00174-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Biosorption of chromium (VI) was studied by using non-living free and immobilized biomass of Rhizopus arrhizus at pH 2. A biphasic chromium adsorption pattern was observed in all experimental conditions. Chromium removal rate was slightly more in free biomass conditions over immobilized state. Stirred tank reactor studies indicated maximum chromium biosorption at 100 rpm and at 1:10 biomass-liquid ratio. Fluidized bed reactor is more efficient in chromium removal over stirred tank reactor. Immobilization of biomaterial has a little effect on chromium biosorption by this R. arrhizus biomass. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：421 / 427

页数：7

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