Adsorption of Bisphenol-A from aqueous solution using amberlite XAD-7 impregnated with aliquat 336: Batch, column, and design studies

2019 ◽  
Vol 122 ◽  
pp. 232-246 ◽  
Author(s):  
Sakshi Batra ◽  
Dipaloy Datta ◽  
Nitin Sai Beesabathuni ◽  
Nihit Kanjolia ◽  
Shibayan Saha
2019 ◽  
Vol 79 (9) ◽  
pp. 1755-1765 ◽  
Author(s):  
Drishti Bhatia ◽  
Sakshi Batra ◽  
Dipaloy Datta

Abstract Activated carbon (AC) is the most commonly used adsorbent for water purification, although the dispersive nature of AC in aqueous solution poses a serious problem. To overcome this limitation, AC was magnetized with iron oxide using iron salts as precursor. Further to enhance its effectiveness, it was impregnated with Aliquat 336. Different characterization techniques (Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FE-SEM), along with energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD)) were used to analyze the adsorbent. Furthermore, the value of the pH at which the overall charge on the surface of the adsorbent is neutral was found by pH drift method. The modified form of the activated carbon was used to treat the aqueous solution of bisphenol-A in the batch as well as in the continuous mode of operation. In batch mode, the data were validated using equilibrium and kinetic models, and in continuous mode, data were fitted with the Thomas, Adams-Bohart, and bed depth service time (BDST) fixed bed adsorption models. Also, the changes in Gibb's free energy, enthalpy, and entropy were estimated from the temperature study. The design of an adsorption column is proposed to treat 10,000 L/day of an industrial effluent containing BPA.


Author(s):  
Nurul Syazana Abdul Halim ◽  
Nor Shahirul Umirah Idris ◽  
Nor Fazliani Shoparwe ◽  
Tee Mei Chee

2009 ◽  
Vol 37 (12) ◽  
pp. 1717-1721 ◽  
Author(s):  
Yi-Jun YU ◽  
Guan-Yong SU ◽  
Michael HW LAM ◽  
Paul KS LAM ◽  
Hong-Xia YU

2014 ◽  
Vol 18 (3) ◽  
pp. 208-213 ◽  
Author(s):  
Zhijian Li ◽  
Mohammed Ashraf Gondal ◽  
Zain Hasan Yamani
Keyword(s):  

2014 ◽  
Vol 225 (10) ◽  
Author(s):  
Riry Wirasnita ◽  
Tony Hadibarata ◽  
Abdull Rahim Mohd Yusoff ◽  
Zulkifli Yusop

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