Removal of cadmium from metal processing wastewaters by reverse osmosis
作者:
C. Stewart Slater,
Albert Ferrari,
Peter Wisniewski,
期刊:
Journal of Environmental Science and Health . Part A: Environmental Science and Engineering
(Taylor Available online 1987)
卷期:
Volume 22,
issue 8
页码: 707-728
ISSN:0360-1226
年代: 1987
DOI:10.1080/10934528709375382
出版商: Taylor & Francis Group
关键词: Reverse Osmosis;Cadmium;Membrane;Metal Processing;Industrial Wastewater Treatment
数据来源: Taylor
摘要:
Reverse osmosis has effectively been utilized to remove cadmium from a metal processing waste stream. Experimentation with a thin‐film composite membrane reduced cadmium concentrations from 165 to 0.003 mg/L under optional processing conditions. Concentrations of other metals and overall conductivity were rejected in excess of 98%. Rejection efficiency and production rate were increased by an increase in system operating pressure. Cadmium was effectively concentrated in a batch concentration study while generating high quality water for process reuse. Membrane fouling is a problem if proper in‐line prefiltration is not utilized. Reverse osmosis appears to be an effective alternative to other more traditional treatment methodologies.
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