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논문 기본 정보

자료유형
학술저널
저자정보
이이내 (국립환경과학원 상하수도연구과) 안경희 (국립환경과학원 상하수도연구과) 민병대 (국립환경과학원 상하수도연구과) 양미희 (국립환경과학원 상하수도연구과) 최인철 (국립환경과학원 상하수도연구과) 정현미 (국립환경과학원 상하수도연구과) 박주현 (국립환경과학원 상하수도연구과)
저널정보
한국물환경학회 한국물환경학회지 한국물환경학회지 제32권 제5호
발행연도
2016.1
수록면
442 - 449 (8page)

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초록· 키워드

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The goal of this study is to provide basic data to establish a foundation for the provision of safe drinkable water. The raw water of natural mineral water was analyzed to determine the quantities of anions (F<sup>-</sup>, Cl<sup>-</sup>, NO<sub>3-</sub>N<sup>-</sup>, and SO<sub>4</sub><sup>2- </sup>) and cations (Ca<sup>2+</sup>, K<sup>+</sup>, Mg<sup>2+</sup>, and Na<sup>+</sup>) during the former and latter half of 2016. Analysis of the current quality of the raw water of natural mineral water among domestic manufacturers showed average anions contents of 0.46mg/L of fluorine, 8mg/L of chlorine ion, 1.5mg/L of nitrate nitrogen, and 12mg/L of sulfate ion. While the fluorine content was greater than the water quality criterion of 2.0mg/L at four points, the fluorine level was overall stable. The average cations contents included 21.3mg/L of calcium, 1.0mg/L of potassium, 3.4mg/L of magnesium, and 9.6mg/L of sodium. The chemical characteristics were compared among the major ions, and the results are presented in a piper diagram. The content ratio of cations was in the order of Ca<sup>2+</sup>> Na<sup>+</sup>>Mg<sup>2+</sup>>K<sup>+</sup>, whereas that of anions was in the order of SO<sub>4</sub><sup>2-</sup>>Cl<sup>-</sup>>NO<sub>3-</sub>N<sup>-</sup>>F<sup>-</sup>. While the cations were slightly scattered, the anions were generally concentrated except for at a few points. The Ca-Na-HCO<sub>3</sub> type was dominant overall in water sources from diorite, gneiss, and granite, while the Na-Mg-Ca-HCO<sub>3</sub>-Cl type was dominant in basalt sources. Mineral water manufacturers source their water under various conditions, including in-hole casing, excavation depth, and contact state of bedrock; even within the same rocky area, some differences in the water quality type can occur. When the depth of the water source was taken into account, the mean anions contents of F<sup>-</sup>, Cl<sup>-</sup>, NO<sub>3-</sub>N<sup>-</sup>, and SO<sub>4</sub><sup>2-</sup> were similar, with no significant differences according to depth. Of the cations, K<sup>+</sup> and Na<sup>+</sup> showed no significant differences across all the tubular wells, whereas Ca<sup>2+</sup> and Mg<sup>2+</sup> decreased in content with depth.

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