Comparing aerobic granular sludge and flocculent sequencing batch reactor technologies for textile wastewater treatment

Studying the possibility of forming aerobic granules on real domestic sewage was a logical step in the scaling-up process and development of Aerobic Granular Sludge (AGS) technology. It was noted that influent wastewater composition and Sequencing Batch Reactor (SBR) operation cycle time are important factors that can influence the formation of AGS. Therefore, this study aims to determine the suitability of influent wastewater from Bunus Wastewater Treatment Plant (WWTP) for AGS cultivation and then propose a proper SBR operation cycle time. In this study, wastewater characterization was done for the influent of wastewater treatment plant located in Bunus, Kuala Lumpur. The result was then analysed and compared with previous research to determine the suitability of AGS cultivation. The information on SBR from previous studies were also gathered to propose SBR operation cycle time that suit the Bunus WWTP influent. The findings indicate that the wastewater can be characterized as low strength domestic wastewater with low organic and nutrients content. The values of related parameters in this study have shown that influent wastewater of Bunus WWTP is suitable for cultivating AGS. For the proposed SBR operation, the cycle time is 3h, which consist of 60 min (fill), 110 min (aerate), 5 min (settle), and 5 min (discharge), respectively.

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Robustness of an aerobic granular sludge sequencing batch reactor for low strength and salinity wastewater treatment at ambient to winter temperatures

Journal of Hazardous Materials ◽

10.1016/j.jhazmat.2019.121454 ◽

2020 ◽

Vol 384 ◽

pp. 121454 ◽

Cited By ~ 7

Author(s):

Qiulai He ◽

Hongyu Wang ◽

Li Chen ◽

Shuxian Gao ◽

Wei Zhang ◽

...

Keyword(s):

Wastewater Treatment ◽

Sequencing Batch Reactor ◽

Batch Reactor ◽

Granular Sludge ◽

Aerobic Granular Sludge ◽

Winter Temperatures ◽

Low Strength ◽

Salinity Wastewater

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To Optimize Sequencing Batch Reactor (SBR) and Monitor Aerobic Granular Sludge (AGS) Development for Domestic Wastewater Treatment

10.26226/morressier.61a82ed54a84e7b4701d8c0a ◽

2021 ◽

Author(s):

Norazzah Kassim ◽

Mohd Hakim Ab Halim ◽

Aznah Nor Anuar

Keyword(s):

Wastewater Treatment ◽

Sequencing Batch Reactor ◽

Batch Reactor ◽

Domestic Wastewater ◽

Granular Sludge ◽

Aerobic Granular Sludge ◽

Domestic Wastewater Treatment

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The Comparison of Different Nutrient Sources in Development of Aerobic Granular Sludge

MATEC Web of Conferences ◽

10.1051/matecconf/201815603034 ◽

2018 ◽

Vol 156 ◽

pp. 03034

Author(s):

C. Choerudin ◽

Ardiyan Harimawan ◽

Tjandra Setiadi

Keyword(s):

Metal Ions ◽

Sequencing Batch Reactor ◽

Batch Reactor ◽

Morphological Difference ◽

Granular Sludge ◽

Textile Wastewater ◽

Aerobic Granular Sludge ◽

Fine Chemicals ◽

Nutrient Source ◽

Nutrient Sources

Aerobic granular sludge (AGS) as recent biological wastewater treatment has been developed in a modified sequencing batch reactor (SBR) using real textile wastewater. This experiment focused on comparing the effects of different nutrient sources, i.e. fine chemicals and fertilizer, on the characteristics of the AGS. The development of AGS conducted in a reactor that called as aerobic up-flow fluidized bed (AUFB) reactor. AUFB reactor allows the three-steps SBR operation namely filling-and-discharging, reaction, and settling. The developed AGS was characterized through some parameters i.e. physical characteristics (morphology, size distribution, settling velocity, specific gravity), granulation profile (MLSS and SVI), and removal performances (removal of COD and colour). The results showed that the developed AGS has a slight morphological difference as the effect of each nutrient source. Interestingly, metal ions contained in the nutrient sources affect the granulation profile and removal performances. Higher metal ions in the sources tent towards better profile (higher MLSS and lower SVI) but decreased removal performance (lower colour removal). In conclusions, this experiment suggests that the use of fertilizers as the nutrient source in developing AGS is comparable to the use of fine chemicals.

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