Abstract
Assessment of life cycle environmental impacts and cumulative energy demand on a laboratory-scale capacitive deionizing (CDI) of brackish water was conducted in this study. The CDI system presented advantages of low energy demand at operation phase and low energy-related environmental impacts. With a measured electricity consumption for CDI operation at 1.44MJ (0.4kWh), the total cumulative energy demand for CDI system was estimated at approximately 23.9MJ for production of 1m3 of desalinated water. Results from the impact assessment indicated a global warming potential (GMP100) at 1.43kg CO2 eq, which was mainly attributed to the major reduction in electricity consumption as compared to conventional desalination technologies. Moreover, material utilization and chemical use were shown to be most responsible for overall environmental impacts in the CDI system, particularly for the use of N,N-dimethylacetamide (solvent) and titanium (material for current collector). Use of such chemicals might produce derivatives that contributed to major impacts in ozone depletion and acidification potentials. This suggests that additional efforts in future studies of CDI system may be made to substitute or reduce the two to enhance overall environmental performance of the system.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
