Organic Constituent, Color and Ammoniacal Nitrogen Removal from Natural Rubber Wastewater Using Kenaf Fiber

Abstract

AbstractThe high quality and grade of latex or rubber skim for rubber industries products need to chemical added. Ammonia used in the preservation and processing ware contributed the high concentration of chemical oxygen demand (COD), color and ammoniacal nitrogen in natural rubber wastewater. Adsorption using agriculture material is one of new method in wastewater treatment for the removal pollutants and also environmentally friendly. In this study kenaf fiber has been used as adsorbent in wastewater treatment system and focus on COD, color and ammoniacal nitrogen removal from natural rubber wastewater. Alkali modification and acid modification on kenaf fiber were performed using 0.1 M sodium hydroxide (NaOH) and 0.6 M citric acid (CA). The efficiency of COD, color and ammoniacal nitrogen adsorption was investigated. Percentage removal of COD, color and ammoniacal nitrogen between kenaf fiber treated using NaOH and kenaf fiber treated with citric acid was compared. The maximum removal of COD, color and ammoniacal nitrogen were obtained at dosage 4 g of citric acid treated kenaf fiber with maximum adsorption is 80%, 75% and 86%, respectively. The removal of COD, color and ammoniacal nitrogen by kenaf fiber treated using citric acid more effective than the kenaf fiber which treated using NaOH in COD, color and ammoniacal nitrogen removal from natural rubber wastewater.KeywordsKenaf fiberAmmoniacal NitrogenAdsorptionNatural Rubber wastewaterCOD and Color