کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4079 | 207 | 2009 | 6 صفحه PDF | دانلود رایگان |
The results of a two-phase anaerobic system using anaerobic sequencing batch reactors (ASBRs), treating low-strength wastewater (COD ∼ 500 mg/L) with a high fraction of particulate organic matter (70%, COD basis), are presented. Two reactors in series were used; the first one was hydrolytic–acidogenic, while the second one was methanogenic. This configuration was proposed to promote high efficiency solids removal. During the experiment, 69% and 50% efficiencies of total COD removal were obtained for OLRs of 0.63 and 1.22 kgCOD/(m3 d), respectively. Values of the solubilized organic fraction (SOF) achieved in the hydrolytic–acidogenic reactor were within the range of 0.3–0.6 gCODsolubilized/gpCODremoved, and the average acidified organic fraction (AOF) was 0.6 gCODVFA-produced/gsCODfed. The methanogenic reactor had a VFA removal fraction (VFARF) between 0.4 and 0.6 gCODVFA-removed/gCODVFA-fed for the OLR of 0.63 and 1.22. The two-phase ASBR system is suitable, and can be implemented, for the anaerobic treatment of this kind of wastewater.
Journal: Biochemical Engineering Journal - Volume 43, Issue 3, 15 March 2009, Pages 297–302