TY - JOUR
T1 - Phosphorus adsorption behavior of industrial waste biomass-based adsorbent, esterified polyethylenimine-coated polysulfone-Escherichia coli biomass composite fibers in aqueous solution
AU - Kim, Sok
AU - Park, Yun Hwan
AU - Lee, Jae Been
AU - Kim, Ho Seon
AU - Choi, Yoon E.
N1 - Funding Information:
This study was financially supported by the grants of National Research Foundation of Korea (Grant No.: 2018R1A6A3A11045442 and 2019R1A2C2087449 ) and OJeong Eco-Resilience Institute (OJERI) and BK21 Plus Eco-leader Education center (ELEC) of Korea university .
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/12/5
Y1 - 2020/12/5
N2 - This study sought to develop a highly efficient adsorbent material for phosphorus (P) removal via valorization of industrial Escherichia coli biomass waste. To ensure an easy and fast recovery after the sorption process, the E. coli biomass waste was immobilized into polysulfone matrix. Additionally, to improve P sorption capacity, the sorbent surface was coated with polyethylenimine (PEI) and further chemically modified. The P uptakes of the developed sorbent (decarboxylated PEI-modified polysulfone-biomass composite fiber, DC-PEI-PEF) were significantly affected by pH. Moreover, the maximum sorption capacity (qmax) of DC-PEI-PEF was estimated as 30.46 ± 1.09 mg/g at neutral pH, as determined by a Langmuir isotherm model. Furthermore, DC-PEI-PEF could reach sorption equilibrium within 5 min and exhibited reusability potential. The partition coefficient of the newly developed material (DC-PEI-PEF) was calculated as 0.387 mg/g⋅μM at 4 mg/L of initial P concentration and decreased as initial P concentrations increased. Therefore, DC-PEI-PEF could be suggested as a promising adsorbent for application in direct phosphorus removal from natural aquatic environments.
AB - This study sought to develop a highly efficient adsorbent material for phosphorus (P) removal via valorization of industrial Escherichia coli biomass waste. To ensure an easy and fast recovery after the sorption process, the E. coli biomass waste was immobilized into polysulfone matrix. Additionally, to improve P sorption capacity, the sorbent surface was coated with polyethylenimine (PEI) and further chemically modified. The P uptakes of the developed sorbent (decarboxylated PEI-modified polysulfone-biomass composite fiber, DC-PEI-PEF) were significantly affected by pH. Moreover, the maximum sorption capacity (qmax) of DC-PEI-PEF was estimated as 30.46 ± 1.09 mg/g at neutral pH, as determined by a Langmuir isotherm model. Furthermore, DC-PEI-PEF could reach sorption equilibrium within 5 min and exhibited reusability potential. The partition coefficient of the newly developed material (DC-PEI-PEF) was calculated as 0.387 mg/g⋅μM at 4 mg/L of initial P concentration and decreased as initial P concentrations increased. Therefore, DC-PEI-PEF could be suggested as a promising adsorbent for application in direct phosphorus removal from natural aquatic environments.
KW - Adsorption
KW - Escherichia coli (E. coli)
KW - Phosphorus
KW - Polyethylenimine (PEI)
KW - Waste biomass
UR - http://www.scopus.com/inward/record.url?scp=85086926419&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2020.123217
DO - 10.1016/j.jhazmat.2020.123217
M3 - Article
C2 - 32947744
AN - SCOPUS:85086926419
SN - 0304-3894
VL - 400
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
M1 - 123217
ER -