자원환경지질 (Economic and Environmental Geology)

  • 제56권3호
  • /
  • Pages.229-238
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  • 2023
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  • 1225-7281(pISSN)
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  • 2288-7962(eISSN)
대한자원환경지질학회 (The Korean Society of Economic and Environmental Geology)
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벤토나이트의 열수변질특성에 따른 중금속의 거동 특성 : 광물성 약재로의 활용

Behavior of Heavy Metals Studies on the Hydrothermal Alteration Characteristics of Bentonite; Use as Medicinal Mineral

  • 김선옥 (부경대학교 에너지자원공학과) ;
  • 왕수균 (부경대학교 에너지자원공학과)
  • Seon-ok Kim (Department of Energy Resources Engineering, Pukyong National University) ;
  • Sookyun Wang (Department of Energy Resources Engineering, Pukyong National University)
  • 투고 : 2023.02.13
  • 심사 : 2023.06.06
  • 발행 : 2023.06.28
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초록

전통적인 광물성 약재로서 활용되어온 석지의 한 종류인 벤토나이트는 다양한 약리 활성을 가지고 있어 한의학에서는 황달, 설사, 지혈 등의 치료제로 쓰이며, 현대 의학에서는 제산제, 위장관보호제, 지사제 등의 의약품 원료 및 의약품 첨가제로 활용하고 있다. 국내에서 생산되는 벤토나이트는 포항, 경주 일대에 분포하는 제3기 화산쇄설물이 속성작용 또는 열수변질작용을 받아 생성되었다. 주로 제지용, 페인트용, 토목용, 주물용, 동물사료용 등의 산업적 용도로 사용하고 있으며, 최근 화장품 및 의약품으로 활용하기 위해 기술을 개발하고 있다. 이 연구에서는 경주 감포 지역과 포항 영일 지역에서 산출되는 벤토나이트 40종와 21종을 대상으로 주성분, 미량원소 분석을 실시하여, 산지별 벤토나이트의 지구화학적 특성을 파악하였고, 포항, 경주 일대에 분포하는 벤토나이트 광상의 생성환경별 유형을 분류하였다. 연구 결과, 연구 지역의 벤토나이트는 현무암질 암석이 열수 유체로부터 알칼리 성분들이 제거되는 이질화작용을 받아 생성되었으며, 이는 AI-CCPI 변질지수에서도 확인할 수 있었다. 또한 산지별 벤토나이트의 열수 변질과 중금속 원소(Pb, Cr, As)의 거동 특성과에는 상관관계가 있음을 알 수 있었다.

Bentonite is a type of rock that has been used as a traditional mineral medicine. It has a variety of pharmacological activities, and is used in traditional Korean medicine to treat jaundice, diarrhea, and hemostasis. In modern medicine, it is used as a raw material and additive for medicines such as antacids, gastrointestinal protective agents, and laxatives. Bentonite produced in Korea was produced through diagenesis or hydrothermal alteration of tertiary volcanic debris distributed in the Pohang and Gyeongju areas. It is mainly used for industrial purposes such as papermaking, paint, civil engineering, casting, and animal feed. Recently, technology is being developed to use it in cosmetics and pharmaceuticals. In this study, the geochemical characteristics of bentonite were identified by analyzing the main components and trace elements of 40 and 21 types of bentonite produced in the Gampo Gyeongju and Yeonil Pohang area. Also it were classifed by formation envrionment of bentonite deposits in the Gampo and Yeonil. As a result of the study, bentonite from the reserch area may be cased by argillic alteraton that alkali elements are removed form basaltic rocks by hydrothermal fluids and AI-CCPI alteration indices wrere also indentified argillic alteraton. It was found that there is a correlation between the behavior characteristics of heavy metal elements (P b, Cr, As) and the hydrothermal alteration of bentonite in the reserch area.

키워드

과제정보

이 논문은 부경대학교 자율창의학술연구비(2021년)에 의하여 연구되었음

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