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Sorptive removal of selected emerging contaminants using biochar in aqueous solution

Title
Sorptive removal of selected emerging contaminants using biochar in aqueous solution
Authors
Kim E.Jung C.Han J.Her N.Park C.M.Jang M.Son A.Yoon Y.
Ewha Authors
손아정
SCOPUS Author ID
손아정scopus
Issue Date
2016
Journal Title
Journal of Industrial and Engineering Chemistry
ISSN
1226-086XJCR Link
Keywords
AdsorptionBiocharMicropollutantsNuclear magnetic resonanceWater treatment
Publisher
Korean Society of Industrial Engineering Chemistry
Indexed
SCIE; SCOPUS; KCI WOS scopus
Abstract
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.
DOI
10.1016/j.jiec.2016.03.004
Appears in Collections:
엘텍공과대학 > 환경공학전공 > Journal papers
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