Investigation of Wastewater Discharges from Wet Coffee Processing Plant (WCPP) by using Aeration with Typha latifolia Plant Treatment Process

Abstract

The research was carried out to investigate wastewater discharge's technical viability from wet coffee processing plant (WCPP) treatments with aeration and Typha- latifolia plant. The WCPP wastewater was conducted at various aeration days (5, 10, 15, 20 and 25 days) after being irrigated for 21 days in the constructed wetland with Typha-latifolia plant and without a plant. The highest value of total solids, chemical oxygen demand and biochemical oxygen demand increasing were 87.8%, 97.4% and, 98.1%, respectively, in 25 days aerated with Typha-latifolia plant wetland. The Typha-latifolia with 25 days aerated WCPWW reduced 94.2% and 98.1% of NO3-N and PO4 3 , respectively. As a result, the aeration days were increased with the removal efficiency of pollutants discharged from wet coffee processing plant increased with a constructed wetland with Typha-latifolia. It shows that aeration with constructed wetland treatment method was a low-cost, affordable, technically viable and eco-friendly treatment option for the wet coffee processing plant wastewater