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Influence of hydrodynamic shear forces on properties of granular biomass in a sequencing batch biofilter reactor

Paper ID Volume ID Publish Year Pages File Format Full-Text
5004 269 2006 6 PDF Available
Title
Influence of hydrodynamic shear forces on properties of granular biomass in a sequencing batch biofilter reactor
Abstract

The paper reports the results of an experimental investigation aimed at evaluating the role of hydrodynamic conditions on properties (physical, chemical and biochemical) of granular biomass grown under aerobic conditions in a SBBR (i.e. sequencing batch biofilter reactor). The granular biomass was characterised by a high density (i.e. 70–110 g VSS/Lbiomass) that permitted to achieve a biomass concentration such high as 20–38 g VSS/Lbed. The biomass density increased quasi-linearly with the increase of shear forces. The extracellular polymeric substances (EPS) content was rather low (5–6% of the total organic matter) and mostly made up of proteins whereas the cellular protein content, a parameter frequently used as an indicator of microorganisms activity, was high (30–60% of total organic matter).In addition, the EPS content and composition were not affected by hydrodynamic shear forces as well as the biomass hydrophobicity and protein content that, however, both seem to be affected by starvation.

Keywords
Aerobic process; Hydrodynamic shear forces; Biofilter; Granulation; Biomass properties
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Influence of hydrodynamic shear forces on properties of granular biomass in a sequencing batch biofilter reactor
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 30, Issue 2, 1 June 2006, Pages 152–157
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
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Price was $35.95
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