MATEC Web Conf.
Volume 156, 2018The 24th Regional Symposium on Chemical Engineering (RSCE 2017)
|Number of page(s)||6|
|Section||Processes for Energy and Environment|
|Published online||14 March 2018|
The Comparison of Different Nutrient Sources in Development of Aerobic Granular Sludge
Department of Chemical Engineering, Institut Teknologi Bandung (ITB), Jl. Ganesa 10, Bandung 40132, Indonesia
2 Department of Chemical Engineering, Institut Teknologi Nasional (ITENAS), Jl. P.H.H. Mustofa No.23, Bandung 40124, Indonesia
3 Center for Environmental Studies (PSLH), Institut Teknologi Bandung (ITB), Jl. Sangkuriang No. 42A Bandung 40135, Indonesia
* Corresponding author: firstname.lastname@example.org
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.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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