Granular sludge is a novel alternative for the treatment of wastewater and offers numerous operational and economic advantages over conventional floccular-sludge systems. The majority of research on granular sludge has focused on optimization of engineering aspects relating to reactor operation with little emphasis on the fundamental microbiology. In this study, we hypothesize two novel mechani...

Performance of a high-rate anaerobic treatment system prior to and after the formation of granular sludge was investigated. The 500-L UASB pilot was set up to receive effluent from a medium-size traditional slaughterhouse without blood recovery. The system was inoculated with mesophilic municipal anaerobic digested sludge for the startup and was fed influent with a total COD in the range of 300...

Phosphorus is an essential but finite and scarce element, which used extensively in pig farming. For recovering phosphorus from manure, we hypothesize that calcium addition during anaerobic treatment can trigger phosphate granulation enable efficient recovery. In this study, tested the recovery of manure by adding treatment. Size–separated (<200 µm) was treated two identical up-flow sludge blan...

Aerobic granulation is a promising biotechnology for wastewater treatment. The formation and development of granules and the pollutant removal are closely associated with hydrodynamic shear force, settling time and volume exchange ratio (VER), which are proved to be the selection pressures. Three different values of shear force (2, 3 and 4 cm/s), settling time (3, 5 and 10 min) and VER (25, 50 ...

Aerobic granular sludge (AGS) is a recent innovative technology and considered forthcoming biological process for sustainable wastewater treatment. AGS composed of the dense microbial consortium aerobic, anaerobic, facultative types bacteria. The mechanism formation its stability long-term operation still subject current research. On other hand, makes treatment in cost-effective way. However, o...

Denitrifying capability of glycogen accumulating organisms (GAOs) has received great attention in environmental science and microbial ecology. Combining this ability with granule processes would be an interesting attempt. Here, a laboratory-scale sequencing batch reactor (SBR) was operated to enrich GAOs and enable sludge granulation. The results showed that the GAO granules were cultivated suc...