Separation of BTX fraction from reservoir brines by sorption onto hydrophobized biomass in a fixed-bed-column system
Authors:
- Ewa Knapik,
- Katarzyna Chruszcz-Lipska,
- Jerzy Stopa,
- Marta Marszałek,
- Agnieszka Makara
Abstract
Oily brine from the gas and oil industries remains the most difficult wastewater to treat due to its complex chemical composition, which includes aromatic hydrocarbons. Even at low concentrations, the presence of BTX (benzene, toluene, xylenes) can be extremely harmful to aquatic ecosystems. Fixed-bed adsorption columns are recommended for oily water treatment due to their flexibility and easy operation. In this research, pine sawdust modified with polydimethysiloxane (PDMS) and hydrophobic nanosilica was applied as a sorbent in a filtration system. The surface modification of raw fiber allowed to change its morphology and increase the roughness of it. The Yoon–Nelson, Bohart–Adams, Clark, and Belter models were applied to simulate continuous biosorption. The Bohart–Adams model strongly correlated with the experimental data and described the whole dynamic behavior of the column. The effect of feed flow rate (10–50 mL/min) on breakthrough characteristics was determined. Both the breakthrough and saturation time decreased as the flow rate increased. This study indicated that hydrophobized pine sawdust is an effective low-cost potential biosorbent for the removal of BTX fraction from produced water in continuous column mode.
- Record ID
- CUTb1ad9fc043c04ba58894a3ff9a7196fd
- Publication categories
- ;
- Author
- Journal series
- Energies, ISSN , e-ISSN 1996-1073, Biweekly
- Issue year
- 2020
- Vol
- 13
- No
- 5
- Pages
- [1-15]
- Article number
- 1064
- Other elements of collation
- fot.; schem.; tab.; wykr.; Bibliografia (na s.) - 13-15; Bibliografia (liczba pozycji) - 49; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 13, Iss. 5
- Substantive notes
- Section: Energy and Environment
- Keywords in English
- oily brine, BTX, breakthrough curve, fixed-bed column
- DOI
- DOI:10.3390/en13051064 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1073/13/5/1064 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTb1ad9fc043c04ba58894a3ff9a7196fd/
- URN
urn:pkr-prod:CUTb1ad9fc043c04ba58894a3ff9a7196fd
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.