PULPING DAN BLEACHING DENGAN BAHAN BAKU JERAMI MENGGUNAKAN NATRIUM HIDROKSIDA DENGAN ALAT DIGESTER BATCH

Abstract

Rice straw is waste that is rarely utilized by the public but many containing cellulose, hemicellulose, and lignin. Rice straw pulp manufacturing process with caustic soda cooking was choosen because it is easy to do and very low cost operations. A wastecontainhighlevels ofcellulosewhichthencan beusedas raw material forpulpmanufacturewhichpreviously had to beknown in advancethe operating conditionsinthe manufacturing process. Pulpingprocess thatused isthe processbyusingSodiumHidroksida(NaOH). NaOH serves to accelerate the process of cooking and heightens as well as density material serves to separate the cooking containers and other cellulose with polluter or other components in rice straw.Optimumconditionthat was obtainedwith atemperature of110°Cwith timefor 120minutes in theproducepulpwith acellulosecontentof 37,3%. Factorsthat affectthepulpingprocessis thecookingtemperature, concentration, consistency, andtime. keywords: rice straw,sodaprocess