Chitosan as a Strategy in the Treatment of Effluent

The treatment of effluents requires new methodologies for the tailings. One option is use natural coagulants. Chitosan has amino groups in polymeric chains that allow it to act as a cationic polyelectrolyte and present high density charges, which are easily adsorbed on negatively charged surfaces, case most colloidal impurities water. Thus, this work used chitosan coagulation/flocculation process remove color, turbidity suspension solids, strategy effluents. For that, samples from textile industry State Rio Grande do Norte stabilization Lagoons municipalities Touros Santa Cruz were tests using jar-test. results proved be efficient removal solids samples. best dosages 22.5 mg/L 37.5 effluents, 52.5 60 lagoon effluent; 30 effluent lagoon. It was observed presented an optimal proportion, is, addition more did not provide greater can coagulant/flocculant both domestic replacing synthetic coagulants or being together with them.