所属单位：环境与市政工程学院

发表刊物：Bioresource Technology

关键字：中文关键字：Anaerobic co-digestion Coffee grounds Thermophilic，英文关键字：Anaerobic co-digestion Coffee grounds Thermophilic

摘要：This study was conducted to investigate the effects of sulfate on propionate degradation and higher organic loading rate (OLR) achievement in a thermophilic AnMBR for 373 days using coffee grounds, milk and waste activated sludge (WAS) as the co-substrate. Without the addition of sulfate, the anaerobic system failed at an OLR of 14.6 g-COD/L/d, with propionate accumulating to above 2.23 g-COD/L, and recovery by an alkalinity supplement was not successful. After sulfate was added into substrates at a COD/SO42 ratio of 200:1 to 350:1, biogas production increased proportionally with OLR increasing from 4.06 to 15.2 g-COD/L/d. Propionic acid was maintained at less than 100 mg-COD/L due to the effective conversion of propionic acid to methane after the sulfate supplement was added. The long-term stable performance of the AnMBR indicated that adding sulfate was beneficial for the degradation of propionate and achieving a higher OLR under the thermophilic condition.

备注：王晓昌

合写作者：李玉友,乔伟,KazuyukiTakayanagi

第一作者：王晓昌,李倩

论文类型：期刊论文

卷号：卷：

期号：期：185

页面范围：页：308~315

是否译文：否

发表时间：2015-03-01