การวิเคราะห์ศักยภาพการผลิตก๊าซชีวภาพจากน้ำเสียโรงชำแหละไก่

Abstract

This study determined the biogas production potential of chicken slaughterhouse wastewater with different sludge, such as sludge from an ABR (Anaerobic Baffled Reactor) and sludge from a pig farm, which was compared using a biochemical methane potential test. The results show that wastewater with sludge from an ABR has accumulated biogas of 270±7 mlN and accumulated methane of 82±2 mlN, which is greater than wastewater with sludge from a pig farm, which has accumulated biogas of 132±5 mlN and accumulated methane of 30±1 mlN. When you add nutrients, the accumulated biogas is 296 mlN as a result of wastewater with ABR sludge, and the accumulated is 90 mlN. Wastewater containing pig farm sludge increased biogas accumulation is 170 mlN and methane accumulation is 41 mlN. Wastewater from an ABR has a methane yield of 115 mlN/gVSadded, while wastewater from a pig farm has a methane yield of 55 mlN/gVSadded. Methane percentage in biogas from wastewater with sludge from ABR is 30.50% higher than methane percentage in biogas from wastewater with sludge from pig farm. However, in comparison to other studies, the potential is low. Because of the amount of wastewater entering the ABR, wastewater from the ABR pond must be drained every 1-2 days, causing the sediment in the ABR pond to be drained. As a result, the microbial sludge in the ABR pond was insufficient for organic matter removal. As a result, new approaches must be developed. In order to bring wastewater from chicken slaughterhouses to produce biogas with higher potential, such as controlling the operation of the factory's wastewater treatment system, controlling volume the amount of wastewater that enters the ABR pond. Including separating sewer pipes for wastewater from the washing process of the production area to prevent sludge destroying chemicals from entering the ABR pond.