Abstract
ABSTRACT To evaluate wood charcoal as raw material for mineral water production, dissolution of inorganic ions from charcoalto water, pH and adsorption ability of chlorine in water were investigated as main variables. More potassium ion wasdissolved in water as higher temperature manufactured charcoal but other ions showed no difference with different charcoal making temperatures. Highest dissolved cation was potassium followed by calcium and sodium. Among woodspecies, charcoal from Quercus variabilis and Platanus occidentalis showed significantly higher potassium content in water than that of larch, red pine and white pine. Other cations had similar pattern to the potassium but their differ-ence was not apparent as much as potassium. pH value of water treated with charcoal was higher for wood charcoals from Platanus occidentalis (pH 8.5) and Quercus variabilis (pH 8.4) which contained higher inorganic cations. In chlor-ine removal in water by charcoal, all wood charcoals showed greater chlorine removal than that of the control, but
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