Reclamation of forward osmosis reject water containing hexavalent chromium via coupled electrochemical-physical processes

Forward osmosis is a water separation process that uses the natural energy of osmotic pressure to separate water from dissolved solutes through a semipermeable membrane. One of the major challenges using this process is the rejection water which contains high content of pollutants, hindering its pra...

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Veröffentlicht in:Environmental technology. - 1993. - 45(2024), 5 vom: 19. Jan., Seite 888-901
1. Verfasser: Mousazadeh, Milad (VerfasserIn)
Weitere Verfasser: Naghdali, Zohreh, Kabdaşlı, Işık, Sandoval, Miguel A, Titchou, Fatima Ezzahra, Malekdar, Farideh, Nasr, Mahmoud, Martínez-Huitle, Carlos A, Lichtfouse, Eric, Emamjomeh, Mohammad Mahdi
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article Electrocoagulation Forward osmosis concentrate Hexavalent chromium removal Response surface methodology Sustainable treatment Sewage chromium hexavalent ion 18540-29-9 Water mehr... 059QF0KO0R Chromium 0R0008Q3JB Water Pollutants, Chemical
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520 |a Forward osmosis is a water separation process that uses the natural energy of osmotic pressure to separate water from dissolved solutes through a semipermeable membrane. One of the major challenges using this process is the rejection water which contains high content of pollutants, hindering its practical application. Herein, for the first time, this work introduces a coupled electrochemical-physical process including iron-electrocoagulation/filtration/sedimentation as a cost-effective treatment to the forward osmosis reject water containing hexavalent chromium to be reclaimed. The synergistic treatment was optimized through a central composite design and response surface methodology to enhance hexavalent Cr removal and minimize operating costs, electrical energy consumption, and settled sludge volume. A 90.0% chromium removal was achieved under optimized conditions: electrolysis time of 59.7 min and current of 1.24 A (J = 6.32 mA cm-2). In addition, operating costs of 0.014 USD m-3, electrical energy consumption of 0.005 kWh m-3, and settled sludge volume of 445 mL L-1 were obtained 
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650 4 |a Electrocoagulation 
650 4 |a Forward osmosis concentrate 
650 4 |a Hexavalent chromium removal 
650 4 |a Response surface methodology 
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650 7 |a 059QF0KO0R  |2 NLM 
650 7 |a Chromium  |2 NLM 
650 7 |a 0R0008Q3JB  |2 NLM 
650 7 |a Water Pollutants, Chemical  |2 NLM 
700 1 |a Naghdali, Zohreh  |e verfasserin  |4 aut 
700 1 |a Kabdaşlı, Işık  |e verfasserin  |4 aut 
700 1 |a Sandoval, Miguel A  |e verfasserin  |4 aut 
700 1 |a Titchou, Fatima Ezzahra  |e verfasserin  |4 aut 
700 1 |a Malekdar, Farideh  |e verfasserin  |4 aut 
700 1 |a Nasr, Mahmoud  |e verfasserin  |4 aut 
700 1 |a Martínez-Huitle, Carlos A  |e verfasserin  |4 aut 
700 1 |a Lichtfouse, Eric  |e verfasserin  |4 aut 
700 1 |a Emamjomeh, Mohammad Mahdi  |e verfasserin  |4 aut 
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773 1 8 |g volume:45  |g year:2024  |g number:5  |g day:19  |g month:01  |g pages:888-901 
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