Analysis of a shear supernatant from flocculent, "fimbriated" Saccharomyces cerevisiae brewer's yeast cells revealed the presence of a protein involved in flocculation of the yeast cells and therefore designated a flocculin. The molecular mass of the flocculin was estimated to be over 300 kDa, as judged from sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Gel permeation chromatograph...

Coagulation and flocculation treatment processes play a central role in the way wastewater effluents are managed. Their primary function is particle removal that can impart colour to a water source, create turbidity, and/or retain bacterial and viral organisms. This study was carried out to investigate whether carbon nanotubes (CNTs) can be used as heterogeneous coagulants and/or flocculants in...

The use of flocculating yeast strains has been considered as a convenient approach to obtain high cell densities in bioreactors with increasing productivity in continuous operations. In Kluyveromyces marxianus ATTC 10022, the GAP1 gene encodes an isoform of glyceraldehyde-3-phosphate dehydrogenase-p37-that is accumulated in the cell wall and is involved in flocculation. To test the use of p37 a...

In order to improve the removal efficiencies of SS and Fe3+ in anaerobic digestion reject water for subsequent biological treatment process, on basis single factor test early stage, response surface method was used, structure formed floc analyzed by magnetic flocculation. The optimum amounts powder, polyaluminum chloride (PAC) polyacrylamide (PAM) were 40.51 mg/L, 31.31 mg/L 4.05 respectively. ...

BACKGROUND Recent studies have demonstrated that microalga has been widely regarded as one of the most promising raw materials of biofuels. However, lack of an economical, efficient and convenient method to harvest microalgae is a bottleneck to boost their full-scale application. Many methods of harvesting microalgae, including mechanical, electrical, biological and chemical based, have been st...

Certain surface active substances produce a non-syphilitic flocculation reaction if cardiolipin is replaced by them in the VDRL test system (Tuomioja 2nd Kajanne, 1956). The test was called the APC test because these surface active substances were products of the Atlas Powder Company (Wilmington, Delaware). The most active was Span 60, stated by the manufacturer to be mainly sorbitan monosteara...

Most analyses of Brownian flocculation apply to conditions where London-van der Waals attractive forces cause particles to be strongly bound in a deep interparticle potential well. In this paper, results are reported that show the interaction between primary- and secondary-minimum flocculation when the interparticle potential curve reflects both attractive and electrostatic repulsive forces. Th...

groups, i.e., the group with less than 30 per cent of interstitial tissue and the group with 30 per cent or more of interstitial tissue. Edema, liver enlargement, abnormalities in thymol flocculation test, in cephalin cholesterol flocculation test, and in serum r-globulin concentration, and deformity of the hepatic veins in hepatic venograms were all significantly more frequently observed in th...

the present investigation provides a thorough study of eliminating soluble and colloidal elements of copper, iron, magnesium and zinc during estuarine mixing of gorganrood river water with caspian sea water in iran. the processes of flocculation were carried out in 10 aquariums in order to furnish the salinity in an interval of 0.3 - 4.4 ppt. the obtained result is indicative of non- conservati...