flocculation

Convection flow can be prevented by lowering film thickness, increasing the viscosity of the coating, minimizing surface tension gradients across the film surface, and preventing or reducing flocculation. Thin multiple coats are less likely to suffer convection flow than a single thick paint film.

Taking into consideration all of the factors that were mentioned above, this study attempts to (1) synthesize the template copolymer (PAD) through UV-initiated polymerization using AM and DMC as monomers and VA-044 as photoinitiator; (2) characterize the chemical structure of polymers using Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance spectroscopy ([sup.1]H NMR), scanning electron microscope (SEM), and thermogravimetric analysis (TGA); (3) explore the influence of the pH and dosage on the flocculation performance and calculate the flocculation performance in terms of turbidity removal and floc size; and (4) explore the possible flocculation mechanism involved in the flocculation progress.

Chitosan, Starch, Waste water treatment, Nanocomposite, Flocculation

Therefore, it is believed that the combination of the above techniques, specifically electro flocculation and the addition of Moringa oleifera Lam as natural coagulant, may demonstrate an efficiency of the treatment system higher than the use of these technologies employed alone.

Wastewater treatment was done in three phases such as coagulation, flocculation and oxidation using high porosity permeable membrane as shown in Fig.

With the magnetic induction intensity of external magnetic field increasing, the linear extent of flocculation grows obviously by developing from dimers or triplets into concatemers with the occurrence of branched chains.

Poor colorant compatibility may become apparent either through the slow development of color or loss of color through flocculation of either the white pigment in the base paint or the colorant pigments.

Sludge flocculation can greatly impact the mechanical dewatering, and thus should be the first task for sludge treatment [1-5].

This creates an uncertainty regarding the effect of flocculation and coalescence on the increase of the average radius of the emulsion.

The desired basic oenological characteristics comprise flocculation and high fermentation capacity, low hydrogen sulfide production ([H.sub.2]S) and neutrality concerning the killer factor (SILVA, 1996; NIKOLAOU et al., 2006; ORTIZ et al., 2013).

Supplements based on microalgae concentrated by flocculation or centrifugation can be a good alternative and appears to have the potential as replacements for fresh food (Mc Causland et al., 1999; Heasman et al., 2000, 2001; Brown et al., 2001; Knuckey et al., 2006).

1996), and flocculation of suspended sediment in streams and storm-water ponds (Mason et al.

The SET plant is spread over 25 acres doing flocculation, equalization, surface aeration, clarification, ultra filtration and reverse osmosis to yield colorless water with a COD (Chemical Oxygen Demand) and TDS (Total Dissolvable Solids) of less than 75 ppm.