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Aerobic granulation technology is already successfully applied for treatment of wastewater. Since 2005, RoyalHaskoningDHV has implemented more than 100 full-scale aerobic granular sludge technology systems (Nereda) for the treatment of both industrial and municipal wastewater across 5 continents.
Aerobic granulation has the ability to successfully biodegrade phenol at high concentrations as high as 250 to 2500 mg L-1. This is one of the highest biodegradation of an aerobic reactor. Another pollutant that aerobic granules can biodegrade is 4-chloroaniline. [ 5 ]
Aerobic granular reactor; Aerobic granular sludge technology; Aerobic granulation; Aerobic treatment system; Anaerobic clarigester; Anaerobic digester types; Anaerobic digestion; Anaerobic filter; Anaerobic lagoon; Anammox; API oil–water separator; Belt filter; Bioconversion of biomass to mixed alcohol fuels; Biofilters; Bioreactor ...
The technology is based on aerobic granulation and is a modification of the activated sludge process. Aerobic granular sludge can be formed by applying specific process conditions that favour slow growing organisms such as PAOs (polyphosphate accumulating organisms) and GAOs (glycogen accumulating organisms).
Ecosystem populations of aerobic organisms increase until oxygen transfer limitations of the secondary treatment bioreactor are reached. Secondary treatment ecosystem populations may shift toward species with lower oxygen requirements, but failure of those species to use some food sources may produce higher effluent BOD concentrations.
Aerobic digester; Aerobic granular reactor; Aerobic granulation; Aerobic treatment system; Agricultural wastewater treatment; Air classifier; Alberta Taciuk process; Alternative technology; API oil–water separator; Arcata Wastewater Treatment Plant and Wildlife Sanctuary
Activated sludge tank at Beckton sewage treatment plant, UK.The white bubbles are due to the diffused air aeration system. The activated sludge process is a type of biological wastewater treatment process for treating sewage or industrial wastewaters using aeration and a biological floc composed of bacteria and protozoa.
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