Pollution control is one of the prime concerns of society today. Untreated or partially treated wastewaters and industrial effluent discharges into natural ecosystems pose a serious problem to the environment. In this study, sulphonated carbon prepared from the bark of Pongemia glabara was coated with chitosan gel obtained from crab shells and used for the treatment for dyeing industry effluent.

Keywords: Chitosan, Pongemia glabara, Sulphonated carbon