화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.36, 364-371, April, 2016
DOI10.1016/j.jiec.2016.03.004  Export Citation
Sorptive removal of selected emerging contaminants using biochar in aqueous solution
Eunseon Kim, Chanil Jung1, Jonghun Han2, Namguk Her2, Chang Min Park3, Min Jang4, Ahjeong Son†, and Yeomin Yoon3, †
  • Department of Environmental Science and Engineering, Ewha Womans University, Seodaemun-gu, Seoul 120-750, Republic of Korea
  • 1Department of Earth and Environmental Studies, Montclair State University, Montclair, NJ 07043, USA
  • 2Department of Civil and Environmental Engineering, Korea Army Academy at Young-Cheon, Kokyungmeon, Young-Cheon, Gyeongbuk 770-849, Republic of Korea
  • 3Department of Civil and Environmental Engineering, University of South Carolina, Columbia, SC 29208, USA
  • 4Department of Environmental Engineering, Kwangwoon University, 447-1 Wolgye-Dong, Nowon-Gu, Seoul, Republic of Korea
E-mail:,
The adsorption of sunscreen compounds (benzophene [BZP] and benzotriazole [BZT]) and widely known endocrine-disrupting compounds (bisphenol A [BPA] and 17 β-estradiol [E2]) was investigated using commercially available powdered activated carbon (PAC) and activated biochar produced in the laboratory. The removal efficiency by biochar was approximately 5?30% higher than that by PAC depending on experimental conditions, presumably due to the higher surface area and pore volume of biochar. The removal of compounds followed the order E2 > BZP > BPA > BZT: Kf (μg/g)/(mg/L)1/n, Freundlich affinity coefficients, were as follows - 19.7, 19.7, 6.57, and 4.56 for PAC, and 30.2, 28.4, 9.22, and 6.79 for biochar. An increase in pH from 3.5 to 10.5 decreased the adsorption of BZP, BZT, BPZ, and E2 by 11.5, 11.4, 10.7, and 4.7% by biochar, respectively. Overall, biochar had a higher adsorption capacity for all chemicals tested compared with PAC.
Keywords:Micropollutants;Adsorption;Biochar;Nuclear magnetic resonance;Water treatment
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