Mass production of activated carbon from rice husk. By husks soaked in acid, phosphoric Limerick concentration of 20%, 30% and 40% at activating temperature of 600, 700 and 800 ° C, then the activated carbon each kind of production to test for. General properties of activated carbon. Whether the moisture ash density after testing the efficiency of absorption by activated carbon to absorb various chemicals including acetic acid dye Acridine Orange and heavy metals compared adsorption. with activated charcoal for commercial use in the laboratory. Then the Isolate Outremont adsorption by adsorption theories of Freud Lichfield (Freundlich) and Langmuir (Langmuir) had results below.
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