Removal of monoethylene glycol from wastewater by using Zr-metal organic frameworks

Mono-ethylene glycol (MEG), used in the oil and gas industries as a gas hydrate inhibitor, is a hazardous chemical present in wastewater from those processes. Metal-organic frameworks (MOFs) (modified UiO-66∗ and UiO-66-2OH) were used for the effective removal of MEG waste from effluents of distilla...

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Bibliographic Details
Published in:Journal of Colloid and Interface Science
Main Authors: Zaboon, S., Abid, H.R., Yao, Z., Gubner, R., Wang, S., Barifcani, A.
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier 2018
Subjects:
Mono-ethylene glycol
UiO-66
UiO-2OH
wastewater
adsorption kinetic
isotherms
Langmuir
sami
Online Access:http://hdl.handle.net/2440/117454
https://doi.org/10.1016/j.jcis.2018.03.084
Description
Summary:Mono-ethylene glycol (MEG), used in the oil and gas industries as a gas hydrate inhibitor, is a hazardous chemical present in wastewater from those processes. Metal-organic frameworks (MOFs) (modified UiO-66∗ and UiO-66-2OH) were used for the effective removal of MEG waste from effluents of distillation columns (MEG recovery units). Batch contact adsorption method was used to study the adsorption behavior toward these types of MOFs. Adsorption experiments showed that these MOFs had very high affinity toward MEG. Significant adsorption capacity was demonstrated on UiO-66-2OH and modified UiO-66 at 1000 mg·g−1 and 800 mg·g−1 respectively. The adsorption kinetics were fitted to a pseudo first-order model. UiO-66-2OH showed a higher adsorption capacity due to the presence of hydroxyl groups in its structure. A Langmuir model gave the best fitting for isotherm of experimental data at pH = 7. Sami Zaboon, Hussein Rasool Abid, Zhengxin Yao, Rolf Gubner, Shaobin Wang, Ahmed Barifcani

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