Performance assessment of innovative constructed wetland-microbial fuel cell for electricity production and dye removal

Effects of temperature on wastewater treatment in an affordable microbial fuel cell-adsorption hybrid system

“…In comparison to the pH profiles in a non-hybrid dual chamber MFC done in the previous study, similar trend can be observed when operated in the range of [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] C and 20-35 C where the pH of the fresh feed (pH 7.4) reached the minimum value of about 6.2 and 6.7, respectively after operated for 20-25 h before the pH started to move up slowly and finally became almost constant [39]. Nevertheless, it is very difficult to compare this performance with the current study because the previous study was done in a wide range of operating temperatures whereas in the current study, the pH profiles was obtained at each specific operating temperatures.…”

“…Nevertheless, standalone treatment system has limitation such as less wastewater treatment efficiency as compared to the MFC hybrid system [7]. Much studies had demonstrated the ability of hybrid MFCs in removing various types of pollutants present in the wastewater such as chemical oxygen demand (COD) [8][9][10], phosphorus [11], dye [12,13], suspended solids (SS) [10], total nitrogen (TN) [14], ammonia nitrogen (NH 3 À ÀN) [15,16], and so on. Majority of the effective pollutants removal were done by integrating MFC with other unit operation or processes.…”

“…However, to the best knowledge of the authors, the studies of the effect of temperatures had only been done on these few sources which includes beer brewery wastewater [33], domestic wastewater [34][35][36], sanitary wastewater [37], barley processing wastewater [38] and synthetic wastewater [39,40]. Municipal water treatment experiments which were done previously at low temperatures (5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15) C) could also be used as a source of high potential MFC operation for electricity generation [41]. At present, none has come to understand the effects of temperature with palm oil mill effluent (POME) as a substrate to MFC which is known as the major contributor of the pollution loads in the rivers in countries such as Malaysia and Indonesia.…”

उपचार आर्द्रभूमियााँ

“…Figure 8.6 shows current available strategies for treatment wetlands operated as vertical flow MFC (adapted from Doherty et al, 2015) and Figure 8.6 (bottom), shows treatment wetlands operated under HF MFCs. Studies dealing with these aspects have only recently been published (Yadav et al, 2012;Fang et al, 2013;Liu et al, 2013;Zhao et al, 2013). The most common material for electrodes are graphite-based materials (either in the form of rods, granules or plates).…”

Preliminary investigation of constructed wetland incorporating microbial fuel cell: Batch and continuous flow trials

“…More importantly, they claimed that designing a comprehensive system by integrating multiple technologies such as ecological treatment and fuel cells will make the whole process economic and eco-friendly [11]. Yadav et al, [12] investigated the first constructed wetland (CW)-MFC based on the rational that the stratified redox conditions in CWs can serve as cathode and anode compartments for developing a unique CW-MFC. They achieved proof of this principal using synthetic dye wastewater, operated under batch conditions.…”