Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 342662
Title Effect of inoculum and sludge concentration of viscosity evolution of anaerobic granular sludges
Author(s) Pevere, A.; Guibaud, G.; Hullebusch, E.D. van; Lens, P.N.L.; Baudu, M.
Source Water Science and Technology 52 (2005)1-2. - ISSN 0273-1223 - p. 509 - 514.
Department(s) Sub-department of Environmental Technology
Publication type Refereed Article in a scientific journal
Publication year 2005
Keyword(s) slib - anaërobe behandeling - reologische eigenschappen - spijsvertering - viscositeit - afvalwaterbehandeling - korrels - sludges - anaerobic treatment - rheological properties - digestion - viscosity - waste water treatment - granules - rheological characterization - sewage sludges - reactors - sorption - nickel - cobalt - uasb
Categories Waste Water Treatment
Abstract The rheological behaviour of granular sludges (diameter 20-315 ¿m) originating from different anaerobic reactors was carried out using rotation tests. The sieved granular sludges suspensions display a non-Newtonian rheological behaviour and the limit viscosity was therefore used as a rheological parameter. The values obtained, which depend on the shear rate used, were strongly influenced by the total suspended solids (TSS) content of granular sludge and an exponential relation was found between the TSS and the rheological parameter limit viscosity. The increase of viscosity as a function of TSS content of the granular sludge as well as the increase of granule size underlines the importance of the interaction between granules in the evolution of this rheological parameter. Significant differences in granular sludge limit viscosity were found for granular sludge of different origins. All measurements performed with 10 g·l-1 TSS granular sludge indicate the ability of the chosen rheological parameter to describe different granular sludge quality.
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