Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Republic of Korea.
Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Republic of Korea.
Bioresour Technol. 2014 Aug;165:122-8. doi: 10.1016/j.biortech.2014.04.007. Epub 2014 Apr 19.
The anaerobic digestion of palm oil mill effluent (POME) was carried out under mesophilic (37°C) and thermophilic (55°C) conditions without long-time POME storage in order to compare the performance of each condition in the field of Sumatra Island, Indonesia. The anaerobic treatment system was composed of anaerobic hybrid reactor and anaerobic baffled filter. Raw POME was pretreated by screw decanter to reduce suspended solids and residual oil. The total COD removal rate of 90-95% was achieved in both conditions at the OLR of 15kg[COD]/m(3)/d. The COD removal in thermophilic conditions was slightly better, however the biogas production was much higher than that in the mesophilic one at high OLR. The organic contents in pretreated POME were highly biodegradable in mesophilic under the lower OLRs. The biogas production was 13.5-20.0l/d at the 15kg[COD]/m(3)/d OLR, and the average content of carbon dioxide was 5-35% in both conditions.
在印度尼西亚苏门答腊岛，为了比较两种条件（中温 37°C 和高温 55°C）在现场的性能，在不进行长时间棕榈油厂废水（POME）储存的情况下，对 POME 进行了厌氧消化。厌氧处理系统由厌氧混合反应器和厌氧折流板过滤器组成。原 POME 通过螺旋式离心机进行预处理，以减少悬浮物和残油。在两种条件下，当 OLR 为 15kg[COD]/m(3)/d 时，总 COD 去除率达到 90-95%。在高温条件下，COD 的去除率略好一些，但在高 OLR 下，沼气产量比中温条件下高得多。在较低的 OLR 下，预处理 POME 中的有机物质在中温条件下具有高度的可生物降解性。在 15kg[COD]/m(3)/d OLR 下，沼气产量为 13.5-20.0l/d，两种条件下二氧化碳的平均含量为 5-35%。
