Publication: Removal of paraquat from aqueous media via HFSLM and mathematical modeling
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Issued Date
2022
Resource Type
Language
eng
File Type
application/pdf
ISSN
986445
Rights Holder(s)
มหาวิทยาลัยศรีนครินทรวิโรฒ
Bibliographic Citation
Chemical Engineering Communications. Vol 209, No.2 (2022), p.281-290
Suggested Citation
Kitnithet S., Kongtaworn K., Chutvirasakul B., Ramakul P. Removal of paraquat from aqueous media via HFSLM and mathematical modeling. Chemical Engineering Communications. Vol 209, No.2 (2022), p.281-290. doi:10.1080/00986445.2020.1869951 Retrieved from: https://hdl.handle.net/20.500.14740/10337
Author(s)
Abstract
The removal and recovery of paraquat from an aqueous solution using a hollow fiber supported liquid membrane (HFSLM) was performed. The extractant was Di-(2-ethylhexyl) phosphoric acid (D2EHPA) which was dissolved in kerosene, whereas the recovery solution was a hydrochloric acid solution. It was found that the pH concentration of D2EHPA, concentration of hydrochloric acid at 8, 4% (v/v), and 1.0 M, respectively, were the optimum conditions. In the one-through mode, 70% and 68% of extraction and recovery, respectively, were achieved, while 99% extraction and recovery were obtained in the circulated mode. In addition, the mathematical model can predict the concentration of paraquat in raffinate solution with different paraquat concentrations and flow rates of feed solution with the R2 of 0.923 and 0.843, respectively. © 2020 Taylor & Francis Group, LLC.