@article{32b943b285d246dca573c11589f24d4a,
title = "Bio-desalination of brackish and seawater using halophytic algae",
abstract = "Global demand for water is rising. A sustainable and energy efficient approach is needed to desalinate brackish sources for agricultural and municipal water use. Genetic variation among two algae species, Scenedesmus species (S. sp.)and Chlorella vulgaris (C. vulgaris), in their tolerance and uptake of salt (NaCl)was examined for potential bio-desalination of brackish water. Salt-tolerant hyper-accumulators were evaluated in a batch photobioreactors over salinity concentration ranging from 2 g/L to 20 g/L and different nutrient composition for their growth rate and salt-uptake. During algae growth phase, the doubling time varied between 0.63 and 1.81 days for S. sp. and 3.1 to 5.9 for C. vulgaris. The initial salt-uptake followed pseudo first order kinetics where the rate constant ranged between −3.58 and −7.68 day−1 reaching up to 30% in a single cycle. The halophyte algae S. sp. and C. vulgaris that were selected for pilot-scale studies here represent a promising new method for desalination of brackish waters. Halophytic technologies combined with the potential use of algae for biofuel, which offsets energy demand, can provide a sustainable solution for clean, affordable water and energy.",
keywords = "Bio-desalination, Brackish water, Halophytic algae, Photobioreactor",
author = "Endalkachew Sahle-Demessie and {Aly Hassan}, Ashraf and {El Badawy}, Amro",
note = "Funding Information: The US EPA, Office of Research and Development funded and managed this research described herein. It has been subjected to the Agency's Administrative review and has been approved for external publication. Any opinion expressed in this paper are those of the authors and do not reflect the views of the U.S. EPA. Approval does not signify that the contents reflect the views of the Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use. Funding Information: The research received seed funding through the EPA internal competition “Pathfinder Innovation Projects” challenge in pursuit of high-risk, high-reward research ideas. We thank Tom Deinlein for building the laboratory PBRs. AAH was a post-doctoral research fellow at the National Risk Management Research Laboratory administered by the Oak Ridge Institute for Science and Education through an interagency agreement between the U.S. Department of Energy and the U.S. Environmental Protection Agency. The US EPA, Office of Research and Development funded and managed this research described herein. It has been subjected to the Agency's Administrative review and has been approved for external publication. Any opinion expressed in this paper are those of the authors and do not reflect the views of the U.S. EPA. Approval does not signify that the contents reflect the views of the Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use. Funding Information: The research received seed funding through the EPA internal competition {"}Pathfinder Innovation Projects{"} challenge in pursuit of high-risk, high-reward research ideas. We thank Tom Deinlein for building the laboratory PBRs. AAH was a post-doctoral research fellow at the National Risk Management Research Laboratory administered by the Oak Ridge Institute for Science and Education through an interagency agreement between the U.S. Department of Energy and the U.S. Environmental Protection Agency. Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",
year = "2019",
month = sep,
day = "1",
doi = "10.1016/j.desal.2019.05.002",
language = "English",
volume = "465",
pages = "104--113",
journal = "Desalination",
issn = "0011-9164",
publisher = "Elsevier",
}