From a study of rice husk charcoal kamman urged using fosof acid 30% concentration kokwam foe. Burn 700° C temperature stimuli and absorb various concentrations that lead is 5 ppm, 10 ppm, and 15 ppm, respectively. Then, compare the performance of lead adsorption by charcoal, kamman. By creating an Internet solution by adsorption makan theory of adsorption of silica and froi lang Premier which results in the following table: 7.
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