modelling pcc flocculation by bridging mechanism using

Modelling PCC flocculation by bridging mechanism using …

The model considers simultaneously aggregation, breakage and flocs restructuring to describe the PCC flocculation by bridging mechanism. The maximum collision efficiency factor, a parameter related with the fragmentation rate and a time constant for flocs restructuring have been taken as fitting parameters.,Modelling PCC flocculation by bridging mechanism using … ,The model considers simultaneously aggregation, breakage and flocs restructuring to describe the PCC flocculation by bridging mechanism. The maximum collision efficiency factor, a parameter related with the fragmentation rate and a time constant for flocs restructuring have been taken as fitting parameters.,Modelling PCC flocculation by bridging mechanism using … ,Abstract A population balance model for flocculation of PCC particles with polyelectrolytes of very high molecular weight, medium charge density and different degree of branching is presented. The model considers simultaneously aggregation, breakage and flocs restructuring to describe the PCC flocculation by bridging mechanism.

Modelling PCC flocculation by bridging mechanism using …

Modelling PCC flocculation by bridging mechanism using population balances: Effect of polymer characteristics on flocculation. Chemical Engineering Science, 2010.,Modelling PCC flocculation by bridging mechanism using … ,The model considers simultaneously aggregation, breakage and flocs restructuring to describe the PCC flocculation by bridging mechanism. The maximum collision efficiency factor, a parameter related…,Modelling PCC Flocculation by Bridging Mechanism Using … ,Modelling PCC Flocculation by Bridging Mechanism Using Population Balances: Effect of Polymer Characteristics on Flocculation Chemical Engineering Science – United Kingdom doi 10.1016/j.ces.2010.03.020

Modelling PCC flocculation by bridging mechanism using …

题名 Modelling PCC flocculation by bridging mechanism using population balances: Effect of polymer characteristics on flocculation 作者 Antunes, E Garcia, FAP Ferreira, P Blanco, A Negro, C Rasteiro, MG,Modelling PCC flocculation by bridging mechanism using … ,Title: Modelling PCC flocculation by bridging mechanism using population balances : Effect of polymer characteristics on flocculation: Authors: Antunes, E.,Modelling PCC flocculation by bridging mechanism using … ,A population balance model for flocculation of PCC particles with polyelectrolytes of very high molecular weight, medium charge density and different degree of branching is presented. The model considers simultaneously aggregation, breakage and flocs restructuring to describe the PCC flocculation by bridging mechanism.

Modelling PCC Flocculation by Bridging Mechanism Using …

Modelling PCC Flocculation by Bridging Mechanism Using Population Balances: Effect of Polymer Characteristics on Flocculation Chemical Engineering Science – United Kingdom doi 10.1016/j.ces.2010.03.020,Modelling PCC flocculation by bridging mechanism using … ,DC Field Value Language; dc.contributor.author: Antunes, E.-dc.contributor.author: Garcia, F.A.P.-dc.contributor.author: Ferreira, P.-dc.date.accessioned,RCAAP – Modelling PCC flocculation by bridging mechanism … ,A population balance model for flocculation of PCC particles with polyelectrolytes of very high molecular weight, medium charge density and different degree of branching is presented. The model considers simultaneously aggregation, breakage and flocs restructuring to describe the PCC flocculation by bridging mechanism.

Modelling PCC flocculation by bridging mechanism using …

Article “Modelling PCC flocculation by bridging mechanism using population balances: Effect of polymer characteristics on flocculation” Detailed information of the J-GLOBAL is a service based on the concept of Linking, Expanding, and Sparking, linking science and …,Modelling PCC flocculation by bridging mechanism using … ,Título: Modelling PCC flocculation by bridging mechanism using population balances : Effect of polymer characteristics on flocculation: Autor: Antunes, E.,Population balance modeling of precipitated calcium … ,In order to predict and control the flocculation process, it is necessary to develop quantitative model which can describe aggregation, breakage and r…

Interaction Modelling of PCC Flocculation Induced by …

understanding the flocculation mechanism via the characterization of the zeta potential of the PCC suspension. Moreover, the free en-ergy of interaction between PCC particles covered by polymer was investigated using a surface energy modelling that simulated the interaction under various polymer coverages.,Simulation of Floc Size Distribution in Flocculation of … ,The modelling of shear-induced flocculation of inorganic particles, such as polystyrene particles [3–5], latex microsphere [2, 6, 7], precipitated calcium carbonate (PCC) , and suspension of kaolinite or bentonite [9–12] has been widely reported. These studies focused on the prediction of the change in mean floc size and the steady-state …,Maria da Graça Rasteiro – Departamento de Engenharia … ,Multiphase processes including modelling and experimental (immiscible liquids, particles and fiber suspensions) … C.

Modelling PCC flocculation by bridging mechanism using …

A population balance model for flocculation of PCC particles with polyelectrolytes of very high molecular weight, medium charge density and different degree of branching is presented. The model considers simultaneously aggregation, breakage and flocs restructuring to describe the PCC flocculation by bridging mechanism.,(PDF) Brownian Flocculation of Polymer Colloids in the ,Modelling PCC Flocculation by Bridging Mechanism Using Population Balances: Effect of Polymer Characteristics on Flocculation Chemical Engineering Science. Applied Mathematics Chemistry Chemical Engineering Manufacturing Engineering Industrial.,The Numerical Simulation Study of a Flocculation Reactor … ,Three-dimensional flow field of flocculating reactor is simulated. Numerical results were applied to analyze and explain influence of flow field under different flocculation conditions.

The Numerical Simulation Study of a Flocculation Reactor …

The results indicate that k, ε can reasonably explain flocculation effect, and meanwhile verify the better applicability as the CFD numerical simulation evaluation indexes of flocculation effect. The results can be extended to find an effective way to optimize the design and operation, to improve the efficiency of flocculation.,Rasteiro MG" OR "Rasteiro G"‬ – ‪Google Scholar‬ ,Modelling PCC flocculation by bridging mechanism using population balances: Effect of polymer characteristics on flocculation E Antunes, FAP Garcia, P Ferreira, A Blanco, C Negro, MG Rasteiro Chemical Engineering Science 65 (12), 3798-3807 , 2010,Describing Mining Tailing Flocculation in Seawater by … ,A population balance model (PBM) is used to describe flocculation of particle tailings in seawater at pH 8 for a range of mixing intensities. The size of the aggregates is represented by the mean chord length, determined by the focused beam reflectance measurement (FBRM) technique.

Analysis and Control of a Turbulent Coagulator …

Using this model, a set of particulate products, in terms of the mean size and fractal dimension, that can be obtained with different shear rate policies was identified. Finally, a control algorithm, the batch model predictive control, was applied to the system.,Modification of microcrystalline cellulose with … – Springer ,Antunes E, Garcia FAP, Ferreira P, Blanco A, Negro C, Rasteiro MG (2010) Modelling PCC flocculation by bridging mechanism using population balances: effect of polymer characteristics on flocculation. Chem Eng Sci 65(12):3798–9807.,Evaluation of flocs resistance and reflocculation … – CORE ,cm to avoid variations on the flocculation process. 2.2.

Modelling PCC flocculation by bridging mechanism using …

A population balance model for flocculation of PCC particles with polyelectrolytes of very high molecular weight, medium charge density and different degree of branching is presented. The model considers simultaneously aggregation, breakage and flocs restructuring to describe the PCC flocculation by bridging mechanism.,Curriculum Vitae (summary) – Universidade de Coimbra ,Modelling PCC flocculation by bridging mechanism using population balances: effect of polymer characteristics on flocculation. Chemical Engineering Science , 65, 3798-3807.,Rasteiro MG" OR "Rasteiro G"‬ – ‪Google Scholar‬ ,Modelling PCC flocculation by bridging mechanism using population balances: Effect of polymer characteristics on flocculation E Antunes, FAP Garcia, P Ferreira, A Blanco, C Negro, MG Rasteiro Chemical Engineering Science 65 (12), 3798-3807 , 2010

Evaluation of flocs resistance and reflocculation … – CORE

cm to avoid variations on the flocculation process. 2.2.,ARTICLE IN PRESS ,Flocculation studies of precipitated calcium carbonate induced by cationic polyacrylamides (C-PAMs) were carried out using light diffraction … charge density C-PAM acts mainly according to the bridging mechanism.,Describing Mining Tailing Flocculation in Seawater by … ,A population balance model (PBM) is used to describe flocculation of particle tailings in seawater at pH 8 for a range of mixing intensities. The size of the aggregates is represented by the mean chord length, determined by the focused beam reflectance measurement (FBRM) technique.

Understanding the coagulation mechanism and floc …

It is commonly admitted that floc properties (such as floc size, structure and strength) of Fe(VI) and FeCl 3 induced flocs have significant effect on the solid-liquid separation (Sang & Xiao 2008, 2009; Sang & Englezos 2012).Large and compact floc would facilitate the sedimentation and solid-liquid separation ().Previously, either jar test or photometric dispersion analyzer were employed to …,Effect of Anionic Polyacrylamide on the Structural … ,Taking the superfine tailings slurry (STS), fine tailings slurry (FTS), and unclassified tailings slurry (UTS) of a gold mine as examples, a series of laboratory shear tests were conducted to investigate the effect of anionic polyacrylamide (APAM) on the structural stability of the thickened tailings slurry in pipeline transportation.,Structural evaluation of chitosan-modified precipitated … ,Even PCC functionalized with 4.5% chitosan, anionic charge density decreased to − 4.4 μeq/g but no charge reversal or charge nullification could be detected at this point. We, therefore, propose that the dominant mechanism was flocculation of PCC by the polymer rather than coagulation.