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http://dx.doi.org/10.5658/WOOD.2014.42.4.460

Studies on Manufacture of Mineral Water with Wood Charcoals  

Shin, Soo-Jeong (Department of Wood and Paper Science, Chungbuk National University)
Kim, Byung-Ro (Department of Wood and Paper Science, Chungbuk National University)
Publication Information
Journal of the Korean Wood Science and Technology / v.42, no.4, 2014 , pp. 460-466 More about this Journal
Abstract
To evaluate wood charcoal as raw material for mineral water production, dissolution of inorganic ions from charcoal to water, pH and adsorption ability of chlorine in water were investigated as main variables. More potassium ion was dissolved 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 wood species, 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 difference 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 chlorine removal in water by charcoal, all wood charcoals showed greater chlorine removal than that of the control, but softwood charcoals resulted in higher removal than those of hardwoods. There was no significant difference in the dissolution of cations and pHs between particle charcoal and whole charcoal. With easy of control, whole charcoal is better for mineral water making raw material than particle charcoal does.
Keywords
wood charcoal; mineral water; inorganic ion; pH; residual chlorine;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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