커피찌꺼기를 이용한 폐수 중의 Pb, Cr, Cd의 제거에 관한 연구

• 영문명: A Study on Removal of Pb, Cr, Cd in Wastewater Using Exhausted Coffee
• 발행기관: 한국환경보건학회
• 저자명: 임성훈 정문식 박석환
• 간행물 정보: 『1. 한국환경보건학회지』제21권 제1호, 21~28쪽, 전체 8쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 1995.03.30

영문 초록

The removal of heavy metals from synthetic wastewater containing Pb, Cr, Cd using previously washed and dried exhausted coffee was studied varying cohcentration, pH and temperature. All the heavy metals were removed in 3.0 minutes and the removal efficiency was maximum 80~90% with different pH and temperature conditions. The differences in removal efficiency between exhausted coffee and activated carbon under the same conditions were not seen. The removal efficiency was slightly increased with increasing pH in Cd and increasing temperature in Cr, respectively. The batch adsorption kinetics and adsorption equilibrium were examined and described by a first order reversible reaction and Freundlich isotherm, respectively. And the removal of Pb was found to have the best removal efficiency.

키워드

Wastewater heavy metal coffee Pb Cr Cd