Three identically designed systems named designate as MFC-CW. CW1. and CW2 were constructed and setup in this study for simultaneous biotreatment of real petroleum refinery wastewater (PRW) and bioelectricity generation. The three systems were planted with emergent wetland plant of Canna indica. https://thegreensjunglebeautyshops.shop/product-category/nail-scrub/