Pollution Research Paper

Vol.30, Issue 4, 2011; Page No.(483-488)

REMOVAL OF COPPER AND CHROMIUM HEAVY METALS FROM INDUSTRIAL WASTEWATER BY BIOSORPTION

S.Rajarathinam and V. Arutchelvan

Abstract

In this research work, biosorption process has been implemented for removal of heavy metals like Chromium (Cr) and Copper (Cu) from the industrial waste, using Thespesia populnea leaf. Electrolysis process has been implemented to separate two metals from the industrial entire waste. In this experiment, 100 ml (millilitre) of constant sample dosage has been taken for each test, using spectrophotometer. Experiments have been carried out to find out the variation in pH, biosorbent concentration and percentages of removal of metals with variation of time interval. The outcome result shows that less pH value and better biosorbent concentration are obtained by Cr than Cu, followed by the increase in percentage of removal by Cr than Cu, variation of time interval. Mechanisms of metals sorption by Thespesia populnea have given by better fits for Freundlich and Langmuir models.

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