EFFECT OF BIOLOGICAL TREATMENTS ON COD ADSORPTION

被引：12

作者：

KIM, BR

ANDERSON, SG

ZEMLA, JF

机构：

[1] Environmental Science Department, General Motors Research Laboratories, Warren

来源：

WATER RESEARCH | 1990年 / 24卷 / 04期

关键词：

activated carbon; adsorption; aerobic treatment; anaerobic treatment; chemical oxygen demand; isotherms; metal cutting fluids;

D O I：

10.1016/0043-1354(90)90229-Y

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A simulated wastewater, which contains eight metal cutting fluids, was treated using three biological schemes: anaerobic, anaerobic followed by aerobic and aerobic. Sludge ages for the biological schemes were sufficiently long to produce the effluents in which the residual organics were practically nonbiodegradable. Adsorption isotherms, obtained using the wastewater and the three biologically treated effluents, revealed that the absorption capacity of activated carbon increased substantially after the wastewater was biologically treated. This increase appeared to be due to selective, biological removal of poorly adsorbable organics, displaying a synergistic relationship between adsorption and biodegradation. The organic compositions in the anaerobic/aerobic effluent and in the aerobic effluent might be similar because the adsorption isotherms for the effluents were virtually identical. © 1990.

引用

页码：457 / 461

页数：5