Sorptive removal of selected emerging contaminants using biochar in aqueous solution
- 주제(키워드) Adsorption , Biochar , Micropollutants , Nuclear magnetic resonance , Water treatment
- 등재 SCIE, KCI등재, SCOPUS
- 발행기관 Korean Society of Industrial Engineering Chemistry
- 발행년도 2016
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000125769
- 본문언어 영어
- Published As http://dx.doi.org/10.1016/j.jiec.2016.03.004
- 저작권 이화여자대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
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: K f (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. © 2016 The Korean Society of Industrial and Engineering Chemistry.
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