Improved salt removal and power generation in a cascade of two hydraulically connected up-flow microbial desalination cells.
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| Title: | Improved salt removal and power generation in a cascade of two hydraulically connected up-flow microbial desalination cells. |
|---|---|
| Authors: | Sevda, Surajbhan1,2 (AUTHOR), Abu-Reesh, Ibrahim M.1 (AUTHOR) abureesh@qu.edu.q |
| Source: | Journal of Environmental Science & Health. Part A. Toxic/Hazardous Substances & Environmental Engineering. 2018, Vol. 53 Issue 4, p326-337. 12p. |
| Subjects: | Saline water conversion, Microbial cells, Salt, Wastewater treatment, Chemical oxygen demand, Continuous flow reactors |
| Abstract: | A novel two chamber up-flow microbial desalination cell (UMDC) was designed for evaluating desalination of real seawater with simultaneous wastewater treatment and energy generation. Two UMDCs were hydraulically connected in continuous flow mode (cascade mode) and operated at ten different hydraulic retention times (HRTs) [120 h to 12 h] and salt retention times (SRTs) [40 h to 4 h] for improved performance of chemical oxygen demand (COD) and salt removal. These UMDCs were operated at different combinations of high power (higher external resistance) and high current (low external resistance) mode to find the most suitable conditions for obtaining higher COD removal, salt removal, power production and current generation. The optimum HRT and SRT were 60 h and 40 h, respectively. The highest salt removal achieved was 72% at SRT of 40, while the highest COD removal was 83% at a HRT of 60 h. A maximum current density of 2.375 A/m2was obtained, while the maximum power density was 5.879 W/m2. The obtained results give an overlook for the scale up of UMDCs in the future. In the entire system, membrane fouling is still a major problem. As the operation time increases, this resulted in low power generation and low salt removal efficiency. The UMDCs can function as sustainable and alternative solution for real wastewater treatment and seawater desalination with resource recovery and power production. [ABSTRACT FROM PUBLISHER] |
| Copyright of Journal of Environmental Science & Health. Part A. Toxic/Hazardous Substances & Environmental Engineering is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 128104309 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Improved salt removal and power generation in a cascade of two hydraulically connected up-flow microbial desalination cells. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Sevda%2C+Surajbhan%22">Sevda, Surajbhan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Abu-Reesh%2C+Ibrahim+M%2E%22">Abu-Reesh, Ibrahim M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> abureesh@qu.edu.q</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Environmental+Science+%26+Health%2E+Part+A%2E+Toxic%2FHazardous+Substances+%26+Environmental+Engineering%22">Journal of Environmental Science & Health. Part A. Toxic/Hazardous Substances & Environmental Engineering</searchLink>. 2018, Vol. 53 Issue 4, p326-337. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Saline+water+conversion%22">Saline water conversion</searchLink><br /><searchLink fieldCode="DE" term="%22Microbial+cells%22">Microbial cells</searchLink><br /><searchLink fieldCode="DE" term="%22Salt%22">Salt</searchLink><br /><searchLink fieldCode="DE" term="%22Wastewater+treatment%22">Wastewater treatment</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+oxygen+demand%22">Chemical oxygen demand</searchLink><br /><searchLink fieldCode="DE" term="%22Continuous+flow+reactors%22">Continuous flow reactors</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: A novel two chamber up-flow microbial desalination cell (UMDC) was designed for evaluating desalination of real seawater with simultaneous wastewater treatment and energy generation. Two UMDCs were hydraulically connected in continuous flow mode (cascade mode) and operated at ten different hydraulic retention times (HRTs) [120 h to 12 h] and salt retention times (SRTs) [40 h to 4 h] for improved performance of chemical oxygen demand (COD) and salt removal. These UMDCs were operated at different combinations of high power (higher external resistance) and high current (low external resistance) mode to find the most suitable conditions for obtaining higher COD removal, salt removal, power production and current generation. The optimum HRT and SRT were 60 h and 40 h, respectively. The highest salt removal achieved was 72% at SRT of 40, while the highest COD removal was 83% at a HRT of 60 h. A maximum current density of 2.375 A/m2was obtained, while the maximum power density was 5.879 W/m2. The obtained results give an overlook for the scale up of UMDCs in the future. In the entire system, membrane fouling is still a major problem. As the operation time increases, this resulted in low power generation and low salt removal efficiency. The UMDCs can function as sustainable and alternative solution for real wastewater treatment and seawater desalination with resource recovery and power production. [ABSTRACT FROM PUBLISHER] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Environmental Science & Health. Part A. Toxic/Hazardous Substances & Environmental Engineering is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1080/10934529.2017.1400805 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 326 Subjects: – SubjectFull: Saline water conversion Type: general – SubjectFull: Microbial cells Type: general – SubjectFull: Salt Type: general – SubjectFull: Wastewater treatment Type: general – SubjectFull: Chemical oxygen demand Type: general – SubjectFull: Continuous flow reactors Type: general Titles: – TitleFull: Improved salt removal and power generation in a cascade of two hydraulically connected up-flow microbial desalination cells. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Sevda, Surajbhan – PersonEntity: Name: NameFull: Abu-Reesh, Ibrahim M. IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 03 Text: 2018 Type: published Y: 2018 Identifiers: – Type: issn-print Value: 10934529 Numbering: – Type: volume Value: 53 – Type: issue Value: 4 Titles: – TitleFull: Journal of Environmental Science & Health. Part A. Toxic/Hazardous Substances & Environmental Engineering Type: main |
| ResultId | 1 |
