SCB-M의 돈분 처리 성능에 관한 연구

Purpose: Performance of slurry composting and biofiltration with methane production (SCB-M) using swine manure and sawdust was evaluated. The suitable specific liquid input (SLI) was determined at lab- scale SCB. Method: In lab-scale SCB, the SLI test was performed at liquid input rate of 0.04, 0.09, 0.17 cc/cm3 with constant sawdust volume. In pilot-scale SCB-M,the swine manure was fed to methane digester at organic loading rate (OLR) of 0.25-0.5 g VS/L/d. The effluent from methane digester was filtered using SCB. Results: The SLI at 0.04 cc/cm3 showed good performance in terms of retention time. In pilot-scale SCB, the removal of NH3-N and total nitrogen (T-N) was found to be around 59% and 28%, respectively. Similarly, volatile fatty acid (VFA) and total chemical oxygen demand (TCOD) removal was found be 56% and 43%,respectively. Conclusions: For SCB-M process, the SLI of 0.04 cc/cm3 is recommended. The performance of swine manure treatment was improved more by using SCB-M system than using methane digester only.