Performance of pilot-scale constructed wetland osmotic microbial fuel cell under different gravel conditions
2022
Bhagat, Mandar S. | Mungray, Arvind Kumar | Mungray, Alka A.
This paper explores the performance of pilot-scale constructed wetland osmotic microbial fuel cell (CW-OMFC) in different gravel conditions. The performance was measured in terms of power generation, water flux, chemical oxygen demand (COD) removal, and coulombic efficiency. The CW-OMFC was divided into four sections based on the porosity of the materials. The surface area of materials at Side A, Side B, Side C, and Side D were 2.717 m².g⁻¹, 0.228 m².g⁻¹, 0.095 m².g⁻¹, and 0.072 m².g⁻¹, respectively. The CW-OMFC achieved maximum water flux, minimum reverse salt flux, high power density, and COD removal efficiency of 6.66 ± 0.5 L.m⁻².h⁻¹, 3.33 ± 1.2 g.m⁻².h⁻¹, 59.53 ± 10 mW.m⁻² and 84.69%, respectively, by using high porous materials. The nutrients (nitrogen, phosphorus, and potassium) uptake by plants from wastewater were 12.17%, 12.01%, and 21.73%, respectively.
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