of view, the cost and the environmental impact of the bleach-ing process. The first part of the experimental activities in thiswork include the utilization of peracetic acid as bleaching systemto clean up empty fruit bunch and make it accessible for fur-ther chemical modification. This part of the work involves firstlystudying the factors affecting the bleaching process e.g. cooxidantconcentration, duration, pH and bleaching medium temperature.Second monitoring the decomposition rate of the oxidant (peraceticacid and hydrogen peroxide), and this is achieved by estimatingthe decomposed percent of the oxidant throughout the reactionperiod. Third evaluation of the treated samples via determiningthe whiteness index, percent weight loss, carboxyl content andcarbonyl content. The second part of the experimental activitiesincludes functionalization of the bleached empty fruit bunch cel-lulose via graft copolymerization with acrylic acid to increase itscarboxyl content. This requires studying the factors affecting thegraft copolymerization reaction, like effect of initiator componentsconcentrations potassium bromate and thiourea dioxide, acrylicacid concentration, material to liquor ratio and polymerizationtemperature. Finally the so prepared poly(acrylic acid)/cellulosegraft copolymer is evaluated via following up the percent totalconversion and calculating the graft yield.