Effects of stressed loadings on biogranulation in upflow anaerobic sludge blanket reactors

Abstract

Upflow Anaerobic Sludge Blanket (UASB) reactor has been successfully applied to the treatment of a variety of industrial wastewaters. Development of active and highly settleable biogranules is one of the key factors for satisfactory UASB process stability and performance. A major drawback of this process, however, is the long start-up time required.