Extraction of Chromium from Tannery Effluents Using Waste Egg Shell Material as an Adsorbent
A. Rajendran *
Department of Chemistry, Sir Theagaraya College, Chennai-600 021, Tamil Nadu, India.
C. Mansiya
Research and Development Centre, Bharathiar University, Coimbatore, India.
*Author to whom correspondence should be addressed.
Abstract
In the present era, due to industrial revolution in the developing country like India, the ground water system has been largely polluted, especially with heavy metals like chromium. The removal of such heavy metals from industrial effluents and from wastewater has become a subject of keen interest. This paper deals with the removal of chromium from its aqueous solution using egg shell, a waste material as an adsorbent. Experimental results vividly demonstrate that this extraction method was found to be cheaper, quicker and more efficient than other conventional techniques. The results are interpreted in the light of Loggergren’s model.
Keywords: Heavy metal, chromium, egg shell, adsorption dynamics, Loggergren’s model