TY - JOUR
T1 - Sorptive removal of selected emerging contaminants using biochar in aqueous solution
AU - Kim, Eunseon
AU - Jung, Chanil
AU - Han, Jonghun
AU - Her, Namguk
AU - Park, Chang Min
AU - Jang, Min
AU - Son, Ahjeong
AU - Yoon, Yeomin
N1 - Publisher Copyright:
© 2016 The Korean Society of Industrial and Engineering Chemistry.
PY - 2016/4/25
Y1 - 2016/4/25
N2 - 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.
AB - 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.
KW - Adsorption
KW - Biochar
KW - Micropollutants
KW - Nuclear magnetic resonance
KW - Water treatment
UR - http://www.scopus.com/inward/record.url?scp=84977934862&partnerID=8YFLogxK
U2 - 10.1016/j.jiec.2016.03.004
DO - 10.1016/j.jiec.2016.03.004
M3 - Article
AN - SCOPUS:84977934862
SN - 1226-086X
VL - 36
SP - 364
EP - 371
JO - Journal of Industrial and Engineering Chemistry
JF - Journal of Industrial and Engineering Chemistry
ER -