Enhancing forward osmosis water recovery from landfill leachate by desalinating brine and recovering ammonia in a microbial desalination cell

Enhancing forward osmosis water recovery from landfill leachate by desalinating brine and... Bioresource Technology 255 (2018) 76–82 Contents lists available at ScienceDirect Bioresource Technology journal homepage: www.elsevier.com/locate/biortech Enhancing forward osmosis water recovery from landfill leachate by desalinating brine and recovering ammonia in a microbial desalination cell Syeed Md Iskander, John T. Novak, Zhen He Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: In this work, a microbial desalination cell (MDC) was employed to desalinate the FO treated leachate for re- Forward osmosis duction of both salinity and chemical oxygen demand (COD). The FO recovered 51.5% water from a raw lea- Microbial desalination cell chate and the recovery increased to 83.5% from the concentrated leachate after desalination in the MDC fed with Landfill leachate either acetate or another leachate as an electron source and at a different hydraulic retention time (HRT). Easily- Ammonia degraded substrate like acetate and a long HRT resulted in a low conductivity desalinated effluent. Ammonia Water recovery was also recovered in the MDC cathode with a recovery efficiency varying from 11 to 64%, affected by current generation and HRT. Significant COD reduction, as high as 65.4%, was observed in the desalination http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Bioresource Technology Elsevier

Enhancing forward osmosis water recovery from landfill leachate by desalinating brine and recovering ammonia in a microbial desalination cell

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Publisher
Elsevier
Copyright
Copyright © 2018 Elsevier Ltd
ISSN
0960-8524
D.O.I.
10.1016/j.biortech.2018.01.097
Publisher site
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Abstract

Bioresource Technology 255 (2018) 76–82 Contents lists available at ScienceDirect Bioresource Technology journal homepage: www.elsevier.com/locate/biortech Enhancing forward osmosis water recovery from landfill leachate by desalinating brine and recovering ammonia in a microbial desalination cell Syeed Md Iskander, John T. Novak, Zhen He Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: In this work, a microbial desalination cell (MDC) was employed to desalinate the FO treated leachate for re- Forward osmosis duction of both salinity and chemical oxygen demand (COD). The FO recovered 51.5% water from a raw lea- Microbial desalination cell chate and the recovery increased to 83.5% from the concentrated leachate after desalination in the MDC fed with Landfill leachate either acetate or another leachate as an electron source and at a different hydraulic retention time (HRT). Easily- Ammonia degraded substrate like acetate and a long HRT resulted in a low conductivity desalinated effluent. Ammonia Water recovery was also recovered in the MDC cathode with a recovery efficiency varying from 11 to 64%, affected by current generation and HRT. Significant COD reduction, as high as 65.4%, was observed in the desalination

Journal

Bioresource TechnologyElsevier

Published: May 1, 2018

References

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