Mathematical modeling assisted investigation of forward osmosis as pretreatment for microbial desalination cells to achieve continuous water desalination and wastewater treatment.
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| Title: | Mathematical modeling assisted investigation of forward osmosis as pretreatment for microbial desalination cells to achieve continuous water desalination and wastewater treatment. |
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| Authors: | Yuan, Heyang1, Abu-Reesh, Ibrahim M.2, He, Zhen1 zhenhe@vt.edu |
| Source: | Journal of Membrane Science. Mar2016, Vol. 502, p116-123. 8p. |
| Subjects: | Osmosis, Saline water conversion, Wastewater treatment, Chemical oxygen demand, Microbial cells |
| Abstract: | Coupling forward osmosis (FO) with microbial desalination cells (MDCs) can lead to some synergistic benefits, i.e. simultaneous water recovery, desalination and removal of COD (chemical oxygen demand). Herein, an FO-MDC system was developed and examined in a continuously-operated mode. It achieved 70.6% COD removal from a synthetic wastewater and 94.0% conductivity decrease in a salt solution containing 35 g L −1 NaCl. The flow rates of both wastewater and salt water exerted strong effects on the system performance. At a draw flow rate of 0.02 mL min −1 , the effluent TDS (total dissolved solids) reached 315 mg L −1 , lower than the maximum contaminant levels of the National Secondary Drinking Water Regulations. A mathematical model was developed for the first time through integrating FO model with MDC model. This model could well predict the key performance parameters such as current generation and desalination effectiveness and rate. When further tested with actual domestic wastewater amended with glucose and NaHCO 3 , the FO-MDC system generated a desalinated effluent containing 1130 mg TDS L −1 . The results of this study suggest that proper coordination of the treatment capacity of the two membrane-based treatment processes could create a potentially effective system for wastewater reuse and seawater desalination. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Membrane Science is the property of Elsevier B.V. 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: 112472447 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Mathematical modeling assisted investigation of forward osmosis as pretreatment for microbial desalination cells to achieve continuous water desalination and wastewater treatment. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Yuan%2C+Heyang%22">Yuan, Heyang</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Abu-Reesh%2C+Ibrahim+M%2E%22">Abu-Reesh, Ibrahim M.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22He%2C+Zhen%22">He, Zhen</searchLink><relatesTo>1</relatesTo><i> zhenhe@vt.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Membrane+Science%22">Journal of Membrane Science</searchLink>. Mar2016, Vol. 502, p116-123. 8p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Osmosis%22">Osmosis</searchLink><br /><searchLink fieldCode="DE" term="%22Saline+water+conversion%22">Saline water conversion</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="%22Microbial+cells%22">Microbial cells</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Coupling forward osmosis (FO) with microbial desalination cells (MDCs) can lead to some synergistic benefits, i.e. simultaneous water recovery, desalination and removal of COD (chemical oxygen demand). Herein, an FO-MDC system was developed and examined in a continuously-operated mode. It achieved 70.6% COD removal from a synthetic wastewater and 94.0% conductivity decrease in a salt solution containing 35 g L −1 NaCl. The flow rates of both wastewater and salt water exerted strong effects on the system performance. At a draw flow rate of 0.02 mL min −1 , the effluent TDS (total dissolved solids) reached 315 mg L −1 , lower than the maximum contaminant levels of the National Secondary Drinking Water Regulations. A mathematical model was developed for the first time through integrating FO model with MDC model. This model could well predict the key performance parameters such as current generation and desalination effectiveness and rate. When further tested with actual domestic wastewater amended with glucose and NaHCO 3 , the FO-MDC system generated a desalinated effluent containing 1130 mg TDS L −1 . The results of this study suggest that proper coordination of the treatment capacity of the two membrane-based treatment processes could create a potentially effective system for wastewater reuse and seawater desalination. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Membrane Science is the property of Elsevier B.V. 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: 10.1016/j.memsci.2015.12.026 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 116 Subjects: – SubjectFull: Osmosis Type: general – SubjectFull: Saline water conversion Type: general – SubjectFull: Wastewater treatment Type: general – SubjectFull: Chemical oxygen demand Type: general – SubjectFull: Microbial cells Type: general Titles: – TitleFull: Mathematical modeling assisted investigation of forward osmosis as pretreatment for microbial desalination cells to achieve continuous water desalination and wastewater treatment. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Yuan, Heyang – PersonEntity: Name: NameFull: Abu-Reesh, Ibrahim M. – PersonEntity: Name: NameFull: He, Zhen IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 03 Text: Mar2016 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 03767388 Numbering: – Type: volume Value: 502 Titles: – TitleFull: Journal of Membrane Science Type: main |
| ResultId | 1 |
