Adsorption Studies Using Chelated Natural Adsorbent For Treatment Of Electroplating Waste Water

Abstract

Industries using water for various processes generate potential hazard to the environment because of introduction of various contaminations such as heavy metals in to soil and water resources. Heavy metals produced  from various industrial process are toxic, non biodegradable and persistent in nature. Chromium is one of major pollutants in the environment and frequently present in wastewaters from various industrial units. The hexavalent form of Chromium is more toxic than trivalent Chromium and is often present in waste water as chromate and dichromate. Hence discharge of heavy metals in aquatic system has become a matter of concern. Many physical and chemical treatments are available for removal. Some of them are expensive, highly energy intensive but also lead to production of harmful by- products. The present study aims at the removal of Chromium (VI) from electroplating industry’s wastewater using chelated Delonix Regia. Here chleating agent used is Oxine ie.8- hydroxy quinoline.The characteristics of adsorbent are studied using FTIR, SEM, EDS, XRD analysis. Study of influencing parameters was carried out to evaluate the adsorption capacity of chelated Delonix Regia. This study describes the various methods of investigation and the detailed experimental procedure to obtain the adsorption equilibrium .