A PROCESS MONITORING CONTROLLING SYSTEM FOR THE TREATMENT OF WASTE-WATER CONTAINING CHROMIUM(VI)

被引:99
|
作者
ZHOU, XJ [1 ]
KORENAGA, T [1 ]
TAKAHASHI, T [1 ]
MORIWAKE, T [1 ]
SHINODA, S [1 ]
机构
[1] OKAYAMA UNIV,FAC PHARMACEUT SCI,OKAYAMA 700,JAPAN
关键词
PROCESS MONITORING; FLOW SENSING METHOD; WASTE-WATER TREATMENT; CHROMIUM(VI); COMPUTER CONTROL;
D O I
10.1016/0043-1354(93)90069-T
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
An advanced monitoring system for controlling the treatment process of wastewater containing chromium(VI) was developed using a flow method as a chemical sensing probe. In this, system, the acquisition of monitoring information and the control of the treatment process is computer-controllable. By application of the system to control the end-point of redox-treatment, an accuracy and precision better than +/- 0.9% (n = 5) and a relative standard deviation smaller than 0.5% (n = 5) were found; furthermore, safe discharge of wastewater can be ensured without the addition of any coprecipitation reagents.
引用
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页码:1049 / 1054
页数:6
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