Separation of BTX Fraction from Reservoir Brines by Sorption onto Hydrophobized Biomass in a Fixed-Bed-Column System
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-b...
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| Format: | Article |
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MDPI AG
2020-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/5/1064 |
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| author | Ewa Knapik Katarzyna Chruszcz-Lipska Jerzy Stopa Marta Marszałek Agnieszka Makara |
| author_facet | Ewa Knapik Katarzyna Chruszcz-Lipska Jerzy Stopa Marta Marszałek Agnieszka Makara |
| author_sort | Ewa Knapik |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-13T06:12:09Z |
| format | Article |
| id | doaj.art-f3a9c3cee79346cfa7b23207f9e210ba |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-13T06:12:09Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-f3a9c3cee79346cfa7b23207f9e210ba2022-12-22T02:59:00ZengMDPI AGEnergies1996-10732020-03-01135106410.3390/en13051064en13051064Separation of BTX Fraction from Reservoir Brines by Sorption onto Hydrophobized Biomass in a Fixed-Bed-Column SystemEwa Knapik0Katarzyna Chruszcz-Lipska1Jerzy Stopa2Marta Marszałek3Agnieszka Makara4AGH University of Science and Technology; Drilling, Oil and Gas Faculty, al. Mickiewicza 30, 30-059 Krakow, PolandAGH University of Science and Technology; Drilling, Oil and Gas Faculty, al. Mickiewicza 30, 30-059 Krakow, PolandAGH University of Science and Technology; Drilling, Oil and Gas Faculty, al. Mickiewicza 30, 30-059 Krakow, PolandCracow University of Technology, Faculty of Chemical Engineering and Technology, ul. Warszawska 24, 31-155 Krakow, PolandCracow University of Technology, Faculty of Chemical Engineering and Technology, ul. Warszawska 24, 31-155 Krakow, PolandOily 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.https://www.mdpi.com/1996-1073/13/5/1064oily brinebtxbreakthrough curvefixed-bed column |
| spellingShingle | Ewa Knapik Katarzyna Chruszcz-Lipska Jerzy Stopa Marta Marszałek Agnieszka Makara Separation of BTX Fraction from Reservoir Brines by Sorption onto Hydrophobized Biomass in a Fixed-Bed-Column System Energies oily brine btx breakthrough curve fixed-bed column |
| title | Separation of BTX Fraction from Reservoir Brines by Sorption onto Hydrophobized Biomass in a Fixed-Bed-Column System |
| title_full | Separation of BTX Fraction from Reservoir Brines by Sorption onto Hydrophobized Biomass in a Fixed-Bed-Column System |
| title_fullStr | Separation of BTX Fraction from Reservoir Brines by Sorption onto Hydrophobized Biomass in a Fixed-Bed-Column System |
| title_full_unstemmed | Separation of BTX Fraction from Reservoir Brines by Sorption onto Hydrophobized Biomass in a Fixed-Bed-Column System |
| title_short | Separation of BTX Fraction from Reservoir Brines by Sorption onto Hydrophobized Biomass in a Fixed-Bed-Column System |
| title_sort | separation of btx fraction from reservoir brines by sorption onto hydrophobized biomass in a fixed bed column system |
| topic | oily brine btx breakthrough curve fixed-bed column |
| url | https://www.mdpi.com/1996-1073/13/5/1064 |
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