Abstract

Freshwater scarcity is an intensifying challenge in parched and semi- parched regions globally, highlighting the importance of treating household greywater to augment limited water resources. This research investigates the effectiveness of a Constructed Wetland (CW) system, utilizing Common Reed, for the treatment of greywater in Akure, Nigeria. Samples of greywater were sourced from Jadesola Hostel at the Federal University of Technology, Akure (FUTA). For further purification, the greywater was routed into a Vertical Flow Sub-surface Constructed Wetland system with Common Reed after first undergoing pre-treatment in a 500-liter settling tank with sections of gravel and sand. Both untreated and treated greywater samples were analyzed for Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), and heavy metals. The results demonstrated that the Constructed Wetland (CW) substantially lowered all tested chemical parameters, with reductions of 91.4% in BOD, 91.5% in COD, and 38.7% in TDS. The treated greywater complied with local standards for wastewater reuse, making it appropriate for irrigation and other outdoor applications. These outcomes are particularly beneficial for farmers who rely on irrigation during the dry season.

Copyright of the paper named above is hereby assigned and transferred to the Nigerian Journal of Applied Science and Innovative Technology published by College of Engineering, Bells University of Technology, Nigeria.