What is it about?
An overview of heavy metal removal from industrial effluents with emphasis on biological methods is given
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Why is it important?
Effluents from petroleum refineries contain a diverse range of pollutants including heavy metals. They also contain oil and grease, phenols, sulphides, dissolved solids, suspended solids and BOD-bearing materials. Results of studies to remove heavy metals in effluents from a petroleum refinery by water hyacinth were presented. Limited success has been demonstrated for the case of iron and zinc, but further work needs to be done.
Perspectives
There is a need to strike the right balance between the possible amount of uptake of heavy metal ions and the tendency to suffocate the ecosystem through the depletion and reduction of light and dissolved oxygen.
Professor Zubaidah Ismail
University of Malaya
Read the Original
This page is a summary of: Potential of Water Hyacinth as a Removal Agent for Heavy Metals from Petroleum Refinery Effluents, Water Air & Soil Pollution, September 2008, Springer Science + Business Media,
DOI: 10.1007/s11270-008-9859-9.
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