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Research on the Flocculation Mechanism of Microbial Flocculants
2010 4th International Conference on Bioinformatics and Biomedical Engineering, 2010Microbial Flocculants is a kind of metabolic products with flocculating activity being produced by microbes and secreted outside of cells. It has the characteristics of easy degradability, highly efficiency, non-toxicity and non-secondary pollution.
Wei Wei +4 more
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2006
This chapter focuses on the process of coagulation and flocculation. The principle methods used for coagulation process include reduction or neutralization of the charges on the colloid; increase of the density of the counter-ion field, and thus reduction of the range of the repulsive effect (compaction of the double layer); and permanent contact ...
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This chapter focuses on the process of coagulation and flocculation. The principle methods used for coagulation process include reduction or neutralization of the charges on the colloid; increase of the density of the counter-ion field, and thus reduction of the range of the repulsive effect (compaction of the double layer); and permanent contact ...
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Yeast flocculation: Flocculation onset and receptor availability
Yeast, 1993AbstractFlocculent strains of brewing yeast grow and ferment as single cells and flocculate in the stationary phase of growth. The switch from single‐celled yeast growth to multi‐celled aggregation, flocculation onset, is of critical importance to the brewing industry.
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Flocculation of yeast suspensions by a cationic flocculant
Powder Technology, 2013Abstract Suspensions of yeasts which are negatively charged have been flocculated using a cationic polyelectrolyte. The initial rate of flocculation and growth of the floc particles were dependent on the flocculant dosage and flocculation time. During flocculation, the cationic polyelectrolyte chains can adsorb via electrostatic interactions onto the
S. Mondal +3 more
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The flocculation of cellulose powders with polymer flocculants
Surface Technology, 1985Abstract The flocculation of pure cellulose, of mercerized cellulose and of cellulose treated with dilute nitric acid has been studied. The adsorption of polymer flocculants on the cellulose is described and results interpreted. Acid pretreatment caused maximum adsorption and flocculation.
Asif S. Bhatti +4 more
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Study on the synthesis and flocculating of a new flocculant
2010 International Conference on Advances in Energy Engineering, 2010This paper reported the synthesis of a new flocculant, a carboxymethyl guar through a rapid semidry process, using a natural guar gum as basic material. The factors which affect degree of substitution (DS) of carboxymethyl guar, such as the reaction temperature, the reaction time, the consumption of chloroacetic acid, and the consumption of sodium ...
null Zhao Xia +3 more
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The flocculation efficiency of polydisperse polymer flocculants
International Journal of Mineral Processing, 2004The flocculation performance of three poly(acrylic acid) (PAA) samples (Mw=9×104, 2.5×105 and 1×106 g/mol) has been investigated. Colloidal alumina particles were used as a model system and tests were performed at pH 5. Using a single-component polyacid, it was found that the optimum dosage required to achieve supernatant clarity was similar between ...
Yan, Y. D. +3 more
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Polymeric Flocculants and Selective Flocculation An Overview
1982Behavior of fine particles in aqueous suspensions is markedly different as compared to those at sizes treated by conventional methods for economic recovery. Depletion of natural resources and environmental considerations coupled with the challenge presented by fine particle properties has led to increasing activity in the science and technology of fine
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The flocculation of pulp and polyacrylamide-type flocculents
The Soviet Journal of Atomic Energy, 1961The processes of dividing hydrometallurgical pulps into solid and liquid phases with subsequent washing out of the dispersed solid particles from the solute are very important in the technology of processing ores and concentrates of uranium, lithium, zirconium, and other metals. Flocculation of pulp, i.e., the formation of more or less large and strong
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