Modular Treatment of Arsenic-Laden Brackish Groundwater Using Solar-Powered Membrane Capacitive Deionization (MCDI) (Vietnam)
Edited book (chapter)
Chapter Title | Modular Treatment of Arsenic-Laden Brackish Groundwater Using Solar-Powered Membrane Capacitive Deionization (MCDI) (Vietnam) |
---|---|
Book Chapter Category | Edited book (chapter) |
ERA Publisher ID | 3337 |
Book Title | Water-Energy-Nexus in the Ecological Transition: Natural-Based Solutions, Advanced Technologies and Best Practices for Environmental Sustainability |
Authors | Hellriegel, Ulrich, Kurz, Edgardo E. Canas, Luong, Vu Tan, Bundschuh, Jochen, Figoli, Alberto, Gabriele, Bartolo and Hoinkis, Jan |
Editors | Naddeo, Vincenzo, Choo, Kwang-Ho and Ksibi, Mohamed |
Page Range | 313-316 |
Series | Advances in Science, Technology & Innovation |
Number of Pages | 4 |
Year | 2022 |
Publisher | Springer |
Place of Publication | Switzerland |
ISBN | 9783031008085 |
9783031008078 | |
9783031008108 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/978-3-031-00808-5_72 |
Web Address (URL) | https://link.springer.com/chapter/10.1007/978-3-031-00808-5_72 |
Abstract | To develop easy-to-implement and low-energy water treatment plants, pilot trials for groundwater desalination and arsenic removal were carried out at the Mekong Delta in Vietnam. Desalination was conducted by membrane capacitive deionization (MCDI), which can show low specific energy consumption (SEC) compared to other desalination technologies. Anoxic groundwater with elevated As(III) and dissolved iron (Fe(II)) was treated using a pre-oxidation/adsorption step called subsurface arsenic removal (SAR). The main advantage of the in situ SAR process is that no As-laden waste is produced. The two different qualities of the treated water from two different stages of the pilot plant can be used for various purposes and can be modularly adjusted in volume according to requirements. The pilot plant was operated using a solar PV system and a small wind turbine. Results show that SAR can reduce the As- and the Fe-concentration to below drinking water limits. The MCDI lowers the total dissolved solids (TDSs) concentration of 1560–188 mg/L. The overall process (well pump to product tap) needs an SEC = 3.97 kWh/m3, which is supplied (127%) by renewable energy. |
Keywords | Desalination; Arsenic removal; MCDI; Pilot scale; Renewable energy |
ANZSRC Field of Research 2020 | 4011. Environmental engineering |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Calabria, Italy |
National Research Council, Italy | |
National Research Council, Italy | |
Vietnamese-German University, Vietnam | |
Lappeenranta University of Technology (LUT), Finland | |
University of Southern Queensland | |
Karlsruhe University of Applied Sciences, Germany |
https://research.usq.edu.au/item/z5w49/modular-treatment-of-arsenic-laden-brackish-groundwater-using-solar-powered-membrane-capacitive-deionization-mcdi-vietnam
38
total views1
total downloads2
views this month0
downloads this month