Organic matter removal and nitrogen transformation by a constructed wetland-microbial fuel cell system with simultaneous bioelectricity generation

The Science of the Total Environment
Thaís GonzálezGladys Vidal

Abstract

Microbial fuel cells integrated into constructed wetlands have been previously studied. Nevertheless, their application as a suitable treatment for wastewater is still in the developmental stage. In this context, the aim of this study was to evaluate organic matter removal and nitrogen transformation by a microbial fuel cell integrated into a constructed wetland (CWMFC). To accomplish this, three experimental systems were operated under batch-mode conditions over 170 days: i) one was planted with Schoenoplectus californicus (P-CWMFC); ii) another was unplanted (NP-CWMFC); and iii) the third system did not have any electrodes (CW) and was used as a control. Chemical oxygen demand (COD) removal efficiency ranged between 74-87%, 69-81% and 62-72% for the P-CWMFC, NP-CWMFC and CW systems, respectively, with organic loading rates (OLR) ranging from 4.8 to 7.9 g COD/m2 d. NH4+-N removal efficiency exceeded 98%, 90% and 83% for P-CWMFC, NP-CWMFC and CW, respectively. Wastewater treatment performance was improved due to anaerobic oxidation that occurred on the anodes. Organic matter removal was 18% higher in closed-circuit mode than in open-circuit mode in both integrated systems (P-CWMFC and NP-CWMFC), and these differences were signi...Continue Reading

References

May 15, 2004·Environmental Microbiology·Kelvin B GregoryDerek R Lovley
Jan 14, 2005·Applied Microbiology and Biotechnology·Jung Rae KimBruce E Logan
Sep 27, 2006·Environmental Science & Technology·Bruce E LoganKorneel Rabaey
Nov 3, 2006·The Science of the Total Environment·Jan Vymazal
Mar 3, 2007·Environmental Science & Technology·Jung Rae KimBruce E Logan
Sep 7, 2007·Water Science and Technology : a Journal of the International Association on Water Pollution Research·V GagnonJ Brisson
Mar 6, 2008·Applied Microbiology and Biotechnology·Nobuo KakuKazuya Watanabe
Feb 14, 2009·Applied Biochemistry and Biotechnology·Daqian JiangYu Lei
Jan 24, 2012·Bioresource Technology·Ruud A TimmersHubertus V M Hamelers
Feb 14, 2012·Journal of Environmental Management·Andrzej BiałowiecPeter F Randerson
Jun 12, 2013·The Science of the Total Environment·Roger Samsó, Joan García
Mar 8, 2014·Environmental Technology·Chih-Yu ChenYing-Chien Chung
Jul 7, 2015·Bioresource Technology·Pratiksha SrivastavaBarada Kanta Mishra
Feb 16, 2016·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Yang ZhangZhanghe Chen
Apr 25, 2018·International Journal of Phytoremediation·Ana María LeivaGladys Vidal

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Citations

May 4, 2021·Journal of Environmental Management·Atieh EbrahimiCraig McLauchlan
Nov 27, 2021·Environmental Science and Pollution Research International·Anamika YadavArunabha Mitra

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