Contribution of static light scattering to the textural characterization of large aggregates

Bizi, Mohamed; Baudet, G.

doi:10.1016/j.jcis.2006.03.069

Cited by 10 publications

(19 citation statements)

References 16 publications

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“…Average porosity of the sludge flocs was estimated according to the method described by Bizi and Baudet (2006). The capillary suction time (CST) of the sludge was measured with a CST instrument (Model 319, Triton, UK).…”

Section: Other Analysismentioning

confidence: 99%

In-situ integration of microbial fuel cell with hollow-fiber membrane bioreactor for wastewater treatment and membrane fouling mitigation

Tian

Li-pin

et al. 2015

Biosensors and Bioelectronics

115

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Section: Other Analysismentioning

confidence: 99%

In-situ integration of microbial fuel cell with hollow-fiber membrane bioreactor for wastewater treatment and membrane fouling mitigation

Tian

Li-pin

et al. 2015

Biosensors and Bioelectronics

115

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“…The model represents a good approximation of the Lorentz-Mie theory for particles with a diameter greater than five times the wavelength of the incidental beam, i.e. 3.2 m. The laser diffraction measurements also provide information on the average porosity, the volume concentration˚F and the average density of the flocs according to following equations [9]:…”

Section: Methodsmentioning

confidence: 99%

Filtration characteristics of a mineral mud with regard to turbulent shearing

Bizi

2008

Journal of Membrane Science

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“…3.2 lm. Laser diffraction measurements also provide access to mean porosity, volume concentration F F , and mean relative density of flocs, 4 using the following equations:…”

Section: Methodsmentioning

confidence: 99%

Flocculation analysis and control system by laser diffractometry at industrial scale

Bizi¹,

Gaboriau²

2007

AIChE Journal

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International audienceThe flocculant injection control system efficiency was evaluated on-site in an aggregate quarry, by means of laser diffraction and analysis of the size and texture of flocs. The configuration of the feed tank and the laser particle size measurement cell installed at the facility (280,000 t/year of aggregates) allowed characterization of flocs with particle size between 4.2 and 3473 μm under hydrodynamic conditions that were highly favorable for the examination of large and very fragile flocs. Two days of analysis of the floc formation process along the path followed by the slurry showed that flocculation was optimal during standard operation of the facility when the flow rate of waste fines and concentrations of solids were close to those used to calibrate the flocculant injection control system. Conversely, when the concentration of solids in the flocculator feed slurry dropped by 57.3%, the flocculant dosing fluctuated during stabilization of the mechanism, the kinetics of flocculation slowed, the mean size of flocs arriving at the settling tank dropped by 69%, and the mode of smaller flocs shifted from 77.8 to 10.4 μm in relation to normal operation. On-site analyses confirmed that the measurements made with laser diffraction (using a methodology developed in the laboratory) allow determination of the effects of conditioning on the characteristics of flocs in terms of particle size, porosity, density, and volume fraction in the slurry. Evolution of these characteristics according to the local parameters of conditioning (mean detention time, mean slurry velocity, and mean velocity gradient) provides a significant part of basic information necessary to a diagnosis of the operation of an industrial circuit of flocculation. © 2007 American Institute of Chemical Engineers AIChE J, 200

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Contribution of static light scattering to the textural characterization of large aggregates

Cited by 10 publications

References 16 publications

In-situ integration of microbial fuel cell with hollow-fiber membrane bioreactor for wastewater treatment and membrane fouling mitigation

In-situ integration of microbial fuel cell with hollow-fiber membrane bioreactor for wastewater treatment and membrane fouling mitigation

Filtration characteristics of a mineral mud with regard to turbulent shearing

Flocculation analysis and control system by laser diffractometry at industrial scale

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