2000
DOI: 10.1061/(asce)0733-9372(2000)126:5(411)
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Molecular Mechanism of Granulation. II: Proton Translocating Activity

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Cited by 63 publications
(27 citation statements)
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“…As to the role of calcium ions in microbial granules developed at different substrate P/COD ratios, it had been proposed that the positive effect of calcium on anaerobic granulation was probably due to the calcium-induced dehydration of bacterial cell surfaces, i.e. the calcium-induced cell fusion might initiate the formation of cell cluster, which acted as microbial nuclei of further granulation [19], while calcium ions may also preferentially bound to extracellular polysaccharides to strengthen the structure of granular sludge [12,13]. These seem to indicate that the accumulated calcium ions would be mainly related to the formation and structural stability of P-accumulating granules, and play an inert role in the EBPR, while magnesium ions would be actively associated with the EBPR by microbial granules.…”
Section: Discussionmentioning
confidence: 99%
“…As to the role of calcium ions in microbial granules developed at different substrate P/COD ratios, it had been proposed that the positive effect of calcium on anaerobic granulation was probably due to the calcium-induced dehydration of bacterial cell surfaces, i.e. the calcium-induced cell fusion might initiate the formation of cell cluster, which acted as microbial nuclei of further granulation [19], while calcium ions may also preferentially bound to extracellular polysaccharides to strengthen the structure of granular sludge [12,13]. These seem to indicate that the accumulated calcium ions would be mainly related to the formation and structural stability of P-accumulating granules, and play an inert role in the EBPR, while magnesium ions would be actively associated with the EBPR by microbial granules.…”
Section: Discussionmentioning
confidence: 99%
“…These granules were produced in an UASB reactor with a volume of 5 l, which had been operated for more than 6 months with a synthetic wastewater with pH 5.5 [22]. The chemical composition of the synthetic wastewater was as follows (mg l À1 ): acetic acid, 2500; propionic acid, 800; butyric acid, 800; yeast extract, 80; NH 4 …”
Section: Feedstock Anaerobic Microbial Sludge and Microbial Granulesmentioning
confidence: 99%
“…The rate of dewatering is usually measured using a CST test or SRF, whereas the extent of dewatering is usually measured by dewatered cake solids as the percent dry solids or water content [28]. Calcium ions could induce the dehydration of bacterial surfaces [29], thus leading to more water released from the sludge surface. It was evident from Fig.…”
Section: Moisture Contentmentioning
confidence: 99%