The process of biosorption of heavy metals in bioreactors loaded with sanitary sewage sludge

被引：15

作者：

Barros, AJM

Prasad, S ^{[1
]}

Leite, VD

Souza, AG

机构：

[1] Univ Fed Campina Grande, CCT, Dept Engn Quim, BR-58109970 Campina Grande, PB, Brazil

[2] Univ Fed Paraiba, CCEN, Dept Quim, BR-56059900 Joao Pessoa, Paraiba, Brazil

[3] Univ Estadual Paraiba, CCT, Dept Quim, BR-58109970 Campina Grande, PB, Brazil

来源：

BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING | 2006年 / 23卷 / 02期

关键词：

heavy metals; biosorption; sanitary sewage sludge; bioreactors;

D O I：

10.1590/S0104-66322006000200001

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This work on the process of biosorption of nickel and chromium in an ascendant continuous-flow, fixed packed-bed bioreactor of sanitary sewage sludge was conducted in a search for solutions to the environmental problem caused by heavy metals. Analysis of the results demonstrated that the absorbent had an extraordinary capacity for biosorption of the heavy metals studied at about 9.0 pH of the effluent, with a removal percentage of over 90.0% for the two metals. Chemometric study results demonstrated that 20 days of the experimental system function were sufficient for achieving the maximum efficiency of sorption of the heavy metals studied by the sanitary sewage sludge employed.

引用

页码：153 / 162

页数：10

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