| Title |
Evaluation of a novel fertilizer-drawn forward osmosis and membrane contactor hybrid system for CO2 capture using ammonia-rich wastewater |
| ID_Doc |
9816 |
| Authors |
Abou-Elanwar, AM; Lee, S; Jang, I; Lee, S; Hong, S; Kim, S; Hwang, MH; Kim, J; Kim, Y |
| Title |
Evaluation of a novel fertilizer-drawn forward osmosis and membrane contactor hybrid system for CO2 capture using ammonia-rich wastewater |
| Year |
2024 |
| Published |
|
| DOI |
10.1016/j.memsci.2024.122654 |
| Abstract |
Chemical absorption is widely employed to capture carbon dioxide (CO 2 ) for addressing climate change. While monoethanolamine (MEA) currently dominates as an absorption solvent, utilizing ammonia -rich wastewater offers advantages such as reduced costs, high absorption capacity, and the generation of ammonium carbamate. This study proposes an innovative fertilizer -drawn forward osmosis (FDFO)-membrane contactor (MC) hybrid system for economically and sustainably mitigating CO 2 emissions using ammonia -rich wastewater. First, ammonia -lean synthetic wastewater was concentrated through an FDFO system, using three fertilizers (KCl, monoammonium phosphate, and diammonium phosphate) as draw solutions. While KCl achieved a 45% ammonia dilution, diammonium phosphate yielded the highest concentration approximately 49%. Also, MCs were assessed for CO 2 absorption under various operational conditions. Increased liquid concentration and flow rates improved CO 2 capture efficiency, whereas higher CO 2 flow rates and concentrations resulted in an adverse effect. Furthermore, a simulation study of a hybrid FDFO-MC system was conducted to evaluate the feasibility and potential of the system. The results indicated that the FDFO-MC hybrid system has the potential to efficiently remove CO 2 if sufficient concentration and flow rate of ammonia -rich solution was secured at the FDFO outlet. This innovation addresses CO 2 emissions and wastewater challenges, adhering to circular economy principles. |
| Author Keywords |
Fertilizer-drawn forward osmosis; Membrane contactor; CO2 capture; Ammonia-rich wastewater; Simulation |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001224611500001 |
| WoS Category |
Engineering, Chemical; Polymer Science |
| Research Area |
Engineering; Polymer Science |
| PDF |
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