弗素 이온 吸着劑로서의 活用을 위한 廢굴껍질의 特性 分析
Investigation on the material properties of Waste Oyster Shell to use as an Adsorbent for Fluoride Ion
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
수산물 처리과정중에서 다량으로 발생하는 폐굴껍질을 흡착제로 활용하는 방안을 모색하고자 이의 물성을 분석하였다. 폐기되는 굴껍질의 조성은 대부분 CaCO3 인 것으로 나타났으며 온도를 증가시키면서 굴껍질을 열분해를 시키면 온도에 따라 수분과 CO2에 의한 분해가 일어나 약 46% 의 무게 감량을 보인다. pH 가 증가할수록 흡착되는 불소 이온의 양은 크게 감소했다. 또한 산성 불소 폐수가 흡착 반응의 평형에 도달하였을 경우 굴껍질에서 용해된 CO23-의해 중화되는 경향이 관찰되었다.
Abstract
The material properties of waste oyster shell, which is largely generated from the treatment of marine products, have been investigated for its possible utilization as an adsorbent for fluoride ion-containing wastewater. The major composition of waste oyster shell was analyzed to be CaCO3 and loss of 46% in weight reduction occurred during its thermal treatment by the emission of moisture and CO2. The surface structure of oyster shell was decomposed by the heating and its surface potential was negatively increased with pH. As the pH of wastewater was increased, the adsorbed amount of fluoride ion onto oyster shell was decreased and the wastewater was found to be neutralized during adsorption process by CO32- which generated from the partial dissolution of oyster shell
참고문헌 (13)
- "Epidemiological study of dental fluorosis in tribals residing near fluorspar mines", 21(3), pp.142~148 (1998)
- "Dental fluorisis in school children in the vicinity of an aluminium factory in India", pp.137~21 141 (1988)
- "Effect of fluorinated drinking water on bone mass and ractures the study osteoporotic fractures", (10), pp.1076~1086 (1995)
- "Abonarmal bone mineralization after fluoride treatment osteoporsis a small-angle X-ray scattering study", pp.1541~1549 (1994)
- "Process Chemistry for water and Wastewater Treatment", pp.405~406 (1982), Prentice-Hall International
- "The treatment of fluoride wastes" (1967)
- "Fluoride reduction at Lacrosse" (1958)
- "The study on the dewaterability improvement of water treatment sludge using powdered waste oyster shells", 27(2), pp.17~21 (2001)
- "Electrochemical removal of fluoride ions from industrial wastewater", (58), pp.987~993 (2003)
- "Removal of fluoride from aqueous solution by using red mud", (28), pp.81~86 (2002)
- "Surface Complexation of Calcium Minerals in Aqueous Solution", (174), pp.178~184 (1995)
- "Defluoridation of wastewater using by calcium chloride and alum", 24(12), pp.2151~2161 (2002)
- "Defluoridation of wastewater using by calcium chloride and alum", 24(12), pp.2151~2161 (2002)