A proposed aerobic granules size development scheme for aerobic granulation process.

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Aerobic granulation is increasingly used in wastewater treatment due to its unique physical properties and microbial functionalities. Granule size defines the physical properties of granules based on biomass accumulation. This study aims to determine the profile of size development under two physicochemical conditions. Two identical bioreactors namely Rnp and Rp were operated under non-phototrophic and phototrophic conditions, respectively. An illustrative scheme was developed to comprehend the mechanism of size development that delineates the granular size throughout the granulation. Observations on granules' size variation have shown that activated sludge revolutionised into the form of aerobic granules through the increase of biomass concentration in bioreactors which also determined the changes of granule size. Both reactors demonstrated that size transformed in a similar trend when tested with and without illumination. Thus, different types of aerobic granules may increase in size in the same way as recommended in the aerobic granule size development scheme.


  • Farrah Aini Dahalan
  • Norhayati Abdullah
  • Ali Yuzir
  • Gustaf Olsson
  • X Salmiati
  • Myzairah Hamdzah
  • Mohd Fadhil Mohd Din
  • Siti Aqlima Ahmad
  • Khalilah Abdul Khalil
  • Aznah Nor Anuar
  • Zainura Zainon Noor
  • Zaini Ujang
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Sidor (från-till)291-296
TidskriftBioresource Technology
StatusPublished - 2015
Peer review utfördJa