A process monitoring/controlling system for the treatment of wastewater containing chromium(VI)

Xiaojing Zhou, Takashi Korenaga, Terüo Takahashi, Tosio Moriwake, Sumio Shinoda

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Abstract

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.

Original languageEnglish
Pages (from-to)1049-1054
Number of pages6
JournalWater Research
Volume27
Issue number6
DOIs
Publication statusPublished - 1993

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Keywords

  • chromium(VI)
  • computer control
  • flow sensing method
  • process monitoring
  • wastewater treatment

ASJC Scopus subject areas

  • Earth-Surface Processes

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