Results 301 to 310 of about 120,811 (351)

Flocculation study on spiral flocculator

Water, Air, and Soil Pollution, 1986
Traditionally, the Jar Test has been used to assess the suitability of flocculation treatment for a given raw water. Unfortunately, the Jar Test suffers from a number of disadvantages. The new method of assessment of flocculation, Spiral Flocculator, has been claimed to be a better method than the Jar Test apparatus and a good method for continuous ...
S. Vigneswaran, T. Setiadi
openaire   +1 more source

Flocculation and Flocculation Basins

Transactions of the American Society of Civil Engineers, 1955
An important process in the treatment of water, sewage, and industrial wastes is the formation of suspended floes which can be effectively removed from the liquid by settling or filtration.
openaire   +1 more source

Yeast flocculation: factors affecting the measurement of flocculence

Canadian Journal of Microbiology, 1988
The physical meaning of the residual absorbance of a yeast suspension after flocculation and settling has been investigated. Starting with a dispersed suspension, agitation accelerates flocculation by increasing the probability of collision between particles. As flocculation advances, agitation also breaks the flocs. A stationary state is reached when
J C, Kihn, C L, Masy, M M, Mestdagh, P G, Rouxhet   +3 more
openaire   +2 more sources

A FLOCCULATION TEST FOR MODERATELY FLOCCULENT BREWING YEAST

Journal of the Institute of Brewing, 1975
A modification of the original Helm et al. method was used to determine the flocculation of a moderately flocculent strain of Saccharomyces carlsbergensis. This test appeared to be more useful than methods adapted from Greenshields or Kato & Nishikawa, and made it possible to monitor flocculation trends during the course of fermentation. The effects of
Patel, G., Ingledew, W.
openaire   +2 more sources

The flocculation of algae with synthetic polymeric flocculants

Water Research, 1972
Abstract The flocculation of a pure algal culture of Chlorella ellipsoidia , was evaluated by means of measurements of filtration rate, light transmission and electrophoretic mobility, at algal concentrations of 50–3000mg l −1 , polymer concentrations of 0.01–1000 mg 1 −1 at pH 4–7.
R.C. Tilton, John Murphy, J.K. Dixon
openaire   +1 more source

Research on the Flocculation Mechanism of Microbial Flocculants

2010 4th International Conference on Bioinformatics and Biomedical Engineering, 2010
Microbial 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, Rongli Yu, Yashu Yuan, Gang Wang, Rongli Yu   +4 more
openaire   +1 more source

Yeast flocculation: Flocculation onset and receptor availability

Yeast, 1993
AbstractFlocculent 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.
openaire   +2 more sources

Coagulation and flocculation

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 ...
openaire   +1 more source

Flocculation of yeast suspensions by a cationic flocculant

Powder Technology, 2013
Abstract 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, Y.K. Leong, J.L. Liow, S.R. Wickramasinghe   +3 more
openaire   +1 more source

The flocculation of cellulose powders with polymer flocculants

Surface Technology, 1985
Abstract 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, David Dollimore, J.I. Bhatty, O. Behar, L. Davies   +4 more
openaire   +1 more source