Anaerobic granulation technology for wastewater treatment |
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Authors: | Liu Yu Xu Hai-Lou Show Kuan-Yeow Tay Joo-Hwa |
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Affiliation: | (1) Environmental Engineering Research Center, School of Civil and Structural Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore |
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Abstract: | Anaerobic wastewater treatment using granular sludge reactors is a developing technology, in which granular sludge is the core component. So far, around 900 anaerobic granular sludge units have been operated worldwide. Although intensive research attention has been given to anaerobic granules in the past 20 years, the mechanisms responsible for anaerobic granulation and the strategy of how to expedite substantially the formation of granular sludge have not yet been completely clear. This paper reviews the mode of anaerobic granulation, including the mechanisms and models for anaerobic granulation, major factors influencing anaerobic granulation, characteristics of anaerobic granules, anaerobic granulation in other types of reactors, industrial application of anaerobic granulation technology and neural fuzzy model-based control strategy developed for anaerobic systems. Some approaches for future research are outlined. |
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Keywords: | Anaerobic granulation characteristics of granules mechanisms of granulation operation conditions upflow anaerobic sludge blanket |
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