title: Hybrid system up-flow constructed wetland integrated with microbial fuel cell for simultaneous wastewater treatment and electricity generation.
abstract: An innovative design of upflow constructed wetland-microbial fuel cell (UFCW-MFC) planted with cattail was used for simultaneous wastewater treatment and electricity generation. The electrodes material employed in the study was carbon felt. The main aim of this study is to assess the performance of the UFCW coupling with MFC in term of ability to treat wastewater and the capability to generate bioelectricity. The oxidation reduction potential (ORP) and dissolved oxygen (DO) profile showed that the anaerobic and aerobic regions were well developed in the lower and upper bed, respectively, of UFCW-MFC. Biodegradation of organic matter, nitrification and denitrification was investigated and the removal efficiencies of COD, NO3(-), NH4(+) were 100%, 40%, and 91%, respectively. The maximum power density of 6.12 mW m(-2) and coulombic efficiency of 8.6% were achieved at electrode spacing of anode 1 (A1) and cathode (15 cm).
authors.affiliation: School of Environmental Engineering, Universiti Malaysia Perlis, 02600 Arau, Perlis, Malaysia.
authors.forename: Yoong-Ling
authors.initials: YL
authors.lastname: Oon
authors.affiliation: School of Environmental Engineering, Universiti Malaysia Perlis, 02600 Arau, Perlis, Malaysia. Electronic address: ongsoonan@yahoo.com.
authors.forename: Soon-An
authors.initials: SA
authors.lastname: Ong
authors.affiliation: School of Materials Engineering, Universiti Malaysia Perlis, 02600 Arau, Perlis, Malaysia.
authors.forename: Li-Ngee
authors.initials: LN
authors.lastname: Ho
authors.affiliation: School of Environmental Engineering, Universiti Malaysia Perlis, 02600 Arau, Perlis, Malaysia.
authors.forename: Yee-Shian
authors.initials: YS
authors.lastname: Wong
authors.affiliation: School of Environmental Engineering, Universiti Malaysia Perlis, 02600 Arau, Perlis, Malaysia.
authors.forename: Yoong-Sin
authors.initials: YS
authors.lastname: Oon
authors.affiliation: School of Environmental Engineering, Universiti Malaysia Perlis, 02600 Arau, Perlis, Malaysia.
authors.forename: Harvinder Kaur
authors.initials: HK
authors.lastname: Lehl
authors.affiliation: School of Environmental Engineering, Universiti Malaysia Perlis, 02600 Arau, Perlis, Malaysia.
authors.forename: Wei-Eng
authors.initials: WE
authors.lastname: Thung
mesh_terms: D001673:Biodegradation, Environmental; D001674:Bioelectric Energy Sources; D058440:Denitrification; D004566:Electrodes; D032401:Typhaceae / Q000737:chemistry*; D062065:Wastewater / Q000737:chemistry*; D018508:Water Purification / Q000379:methods*; D053833:Wetlands
chemical_list: D062065:Wastewater
keywords: Carbon felt as electrode; Membrane-less; Microbial fuel cell; Power output; Up-flow constructed wetland