BIOSORPTION OF HEAVY-METAL CATIONS BY NONVIABLE YEAST BIOMASS

被引：139

作者：

BRADY, D

STOLL, A

DUNCAN, JR

机构：

[1] Department of Biochemistry and Microbiology, Rhodes University, Grahamstown, 6140

来源：

ENVIRONMENTAL TECHNOLOGY | 1994年 / 15卷 / 05期

关键词：

BIOSORBENTS; METALS; BIOSORPTION; NONVIABLE; YEAST;

D O I：

10.1080/09593339409385447

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 [工学]; 0830 [环境科学与工程];

摘要：

Granular biosorbent biomass was produced by treating yeast with hot alkali. The granular biomass was capable of accumulating a wide range of heavy metal cations (Fe3+, Cu2+, Cr3+, Hg2+, Pb2+, Cd2+, Co2+, Ag+, Ni2+, and Fe2+) but not an anion (Cr2O72-) or an alkaline-earth metal (Ca2+). Accumulation within the heavy metal group was selective (Cu2+ > Cr3+ > Cd2+ and Cu2+ > Pb2+ > Ni2+). Biosorption to the granular biomass was rapid. Although the biomass was capable of removing > 99% of zinc, chromium and copper from electroplating wastewater, it was only capable of removing 50 - 60% of chromium from tannery wastewater.

引用

页码：429 / 438

页数：10

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