FIXED-BED COLUMN STUDY OF DIAZINON ADSORPTION ON THE CROSS-LINKED CHITOSAN/CARBON NANOTUBE

2020 ◽  
Vol 19 (3) ◽  
pp. 467-474 ◽  
Author(s):  
Tahere Taghizade Firozjaee ◽  
Naser Mehrdadi ◽  
Majid Baghdadi ◽  
Gholamreza Nabi Bidhendi
Keyword(s):  
Carbon Nanotube ◽  
Fixed Bed ◽  
Fixed Bed Column ◽  
Column Study ◽  
The Cross

Microwave induced activated carbon for the removal of metal ions in fixed-bed column study: modelling and mechanisms

2021 ◽  
Vol 221 ◽  
pp. 139-151
Author(s):  
Omar S.A. Al-Khazrajy ◽  
Salam A. Mohammed ◽  
Omaimah Al-Musallami ◽  
Zahour Al-Rawahi ◽  
Emad Yousif
Keyword(s):  
Activated Carbon ◽  
Metal Ions ◽  
Fixed Bed ◽  
Fixed Bed Column ◽  
Column Study ◽  
Removal Of Metal ◽  
Removal Of Metal Ions

scholarly journals Iron Oxide-Coated Gravel Fixed Bed Column Study Performance to Remove Mixed Metals from Landfill Leachate

2019 ◽  
Vol 122 ◽  
pp. 01002 ◽  
Author(s):  
Ibrahim Yildiz ◽  
Banu Sizirici
Keyword(s):  
Iron Oxide ◽  
Fixed Bed ◽  
Breakthrough Curves ◽  
Fixed Bed Column ◽  
Desorption Process ◽  
Column Study ◽  
Regeneration Capability ◽  
Synthetic Leachate ◽  
Adsorption Desorption ◽  
Study Performance

Iron oxide-coated gravel as an adsorbent was employed in continuous fixed bed column study to remove Fe(II), Ni(II), and Zn(II) simultaneously in synthetic leachate samples. Experimental and modeled adsorption capacities derived from the breakthrough curves showed the adsorption capacity order of Zn(II)>Fe(II)> Ni(II). Iron oxide-coated gravel column removed 58.24% of Zn(II), 47.71% of Fe(II), and 39.45% of Ni(II). Desorption process was studied in order to test the regeneration capability of iron oxidecoated gravel. It was seen that 99.64 % of Ni(II), 99.54% of Fe(II) and 6.75% of Zn (II) were recovered through the first cycle of adsorption/desorption. In the second cycle, the recovery rates dropped to 81.4% for Ni(II), 80% for Fe(II) and 4% for Zn(II). Based on these results, iron oxide coated gravel has potential to remove mixed metal ions simultaneously in aqueous solutions.

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