Electronic Theses and Dissertation

Producing activated carbon from coconut shell with work test to metal (pb2) h conducted activation by using pyrolisis that flowing gas pyrolisis temperature variated from 350c to 500c and residence time 05, i, i,s and 2 hours the adsorption activated carbon yield is 42,s% in activated carbon that has pyrollisis 350 c d residence time 0,s hour the lowest yield is 32,22% that has pyrolisis at 500c and residence time 2 hours. the result of water content analysis 011%. the adsorption test of ebon and capacity of adsorption where down by using methylene blue and timbal. the highest adsorption of methylene bile is 141288 mg/g and that was activated on 500c and residence time hours the highest capacity of adsorption (ku/iv of with carbon is 100,00 mg/g and that w activated o 450cm residence time i hour the isotherm model of adsorption of timbal from the experiment result was follow the isotherm model of langmuir. key word : activated carbon, adsorption, pirolisis, coconut shell.