커피찌꺼기를 이용한 흡착제 제조 및 수중 Trichloroethylene(TCE) 흡착제거에 관한 연구

• 영문명: A Study on Preparation of Adsorbent from Coffee Grounds and Removal of Trichloroethylene in Water Treatment
• 발행기관: 한국환경보건학회
• 저자명: 이향숙 강주원 양원호 정문식
• 간행물 정보: 『1. 한국환경보건학회지』제24권 제2호, 20~31쪽, 전체 12쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 1998.06.30

영문 초록

There is a need for waste recycling. This study was carried out to investigate removal efficiency of TCE in water treatment with adsorbent made from coffee grounds which obtained after extraction of coffee through hot water. The removal of TCE in synthetic Waste water using adsorbents was examined varying dose, concentration and temperature on a laboratory scale. The results were as followed 1. As much as 95% TCE remogal was possible with adsorbent made from coffee grounds at an adsorbent dose over 2.5 g/l under the test conditions. 2. The removal rate of TCE was propotional to weight of adsorbent made from coffee grounds (0.025, 0.1, 0.3, 0.5 g). 3. In the effect of temperature, as temperature of wastewater was high, the rate of removal was increased. 4. Iodine number (865 mg/g) of adsorbent made from coffee grounds was not higher than that (1123 mg/g) of adsorbent made from coconut. But, in considering adsorption capacity, Iodine number was inapplicable to adsorbent made from coffee grounds. 5. Generally, Freundlich s equation applies to adsorption in wastewater. In case of TCE, slope (1/n) was 0.83, 1.06 and intercept (k) was 456.18, 405.19 at 150, 300 ppb respectively (average r=0.904, 0.933).

키워드

Coffee grounds Activated carbon TCE Adsorbent