A Study on Organics Removal and Methane Production during the Anaerobic Digestion of High-Strength Swine Wastes Using UASB Process

UASB 공정에 의한 고농도 축산폐수 처리시 유기물 제거와 메탄생성에 관한 연구

This research was performed to investigate the COD removal efficiency and methane production in slurry-typed swine wastes using UASB(upflow anaerobic sludge blanket)reactor. The USAB reactor was operated from 0.8 through 3.3days of HRT in a range of 3 to 15 kg $TCOD/m^3/day$ of volumetric organic loading rate. The removal rate of TCOD was increased with the increase of the HRT. The removal rate of TCOD at an HRT over 2days, became greater than 68% with the methane contents being from 70 to 80%. Methane production rates were increased from 0.27 to $0.36m^3\;CH_4/kg$ CODrem. as HRTs were increased from 0.8 to 3.3days.