High rate anaerobic digestion of swine wastewater in an anaerobic membrane bioreactor

Efficient treatment of swine wastewater at a high rate would facilitate the development of a sustainable pig industry. In this study, to investigate methane fermentation and membrane filtration performance, an anaerobic membrane bioreactor was operated under mesophilic conditions for 207 days, with a decreasing hydraulic retention time from 5 to 3, 2, and 1 day.