Title: A review on the essential role of substrate on aerobic granulation

Authors: Fenglin Yang, Xinhua Wang, Hanmin Zhang, Yongfei Wang, Mingming Gao

Addresses: School of Environmental and Biological Science and Technology,Dalian University of Technology, 2 Linggong Rd., Dalian 116024, China. ' School of Environmental Science and Engineering, Shandong University, Jinan 250100, China. ' School of Environmental and Biological Science and Technology, Dalian University of Technology, 2 Linggong Rd., Dalian 116024, China. ' School of Environmental and Biological Science and Technology, Dalian University of Technology, 2 Linggong Rd., Dalian 116024, China. ' School of Environmental and Biological Science and Technology, Dalian University of Technology, 2 Linggong Rd., Dalian 116024, China

Abstract: Aerobic granulation is a selection pressure-driven cell-to-cell immobilisation process. So far, the essential role of substrates on aerobic granulation has not been well clarified. This paper reviews current studies about aerobic granulation with different substrates. Although substrates do not exert a major selection pressure on aerobic granulation, they will select substrate-related microorganisms and adjust microbial diversity, and further influence the formation, stability, and structure of aerobic granules. Co-substrate cultivation strategy can be adopted to accelerate aerobic granulation and improve the stability and performance of aerobic granules. This paper hopes to provide a platform for developing full-scale aerobic granules based bioreactors.

Keywords: aerobic granulation; sequencing batch reactors; substrate; selection pressure; co-substrate; cultivation strategy; stability.

DOI: 10.1504/IJEWM.2011.037367

International Journal of Environment and Waste Management, 2011 Vol.7 No.1/2, pp.67 - 79

Available online: 05 Dec 2010 *

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