Yet coagulation water treatment is far from being a new process. Co-flocculation is defined as the phenomenon where two strains are nonflocculent alone, but flocculent when mixed together. However, the concentration of dissolved solids in the effluent was found to be high and this prevented the reuse of the treated wastewater. Specifically, flocculation, as it applies to brewer's yeast, is “the phenomenon wherein yeast cells adhere in clumps and either sediment from the medium in which they are suspended or rise to the medium's surface.” This definition excludes other forms of aggregation, particularly that of ‘clumpy-growth’ and ‘chain formation’. (2016) examined two continuous fixed-bed ion exchange resins for their ability to separate phenolic compounds from olive mill wastewater. Since water treatment is a very sensitive and important process it requires the presence of both physical and chemical processes. Coagulation is a chemical process that involves neutralization of charge whereas flocculation is a physical process and does not involve neutralization of charge. (2014) applied the ultrafiltration process using a polyethersulfone membrane to remove COD, color, TS and total phenolic content from olive mill wastewater and table olive wastewater. Neutralization is another chemical reaction in which H+ ions and OH− ions react quantitatively with each other to form water and salts (Makara and Kowalski, 2015). Thus, flocculation takes place through hydrophobic or hydrogen bonds, and any compression of the double layer that can be induced by increases in ionic strength should enhance bridging by allowing closer particle approach (Figure 1). Coagulation is a process used to neutralise charges and form a gelatinous mass to trap (or bridge) particles thus forming a mass large enough to settle or be trapped in the filter. As described above, flocculation requires the presence of surface protein and mannan receptors. Flocculation usually occurs in the absence of cell division, but not always, during late logarithmic and stationary growth phase and only under rather circumscribed environmental conditions involving specific yeast cell surface components (proteins and carbohydrate components) and an interaction of calcium ions. Alum (an aluminum salt), lime (alkaline chemicals principally containing calcium or magnesium with oxygen), or iron salts are commonly used coagulants. The disadvantages presented by the two types of yeast strain are especially relevant to more traditional fermentation systems where the fermentation process is dependent upon the sedimentation characteristics of the yeast. Flocculation behavior and mechanism of the exopolysaccharide secreted by Pseudoalteromonas sp. The coagu-flocculation mechanism for reagent dispersion and interaction of reagent with particles includes: double electric layer compression, electric neutralization, and adsorption bridging. This treatment technique also eliminated odor emissions in the liquid and solid fractions. The large droplets continue to grow and eventually separate out (float to the surface). Flocculation mechanism The zeta potential is a crucial indicator of the stability of dispersions. Occurs as the visible outcome of certain chemical reactions within the formulation (e.g., reaction of ingredients with each other, oxidation of ingredients, light-induced degradation), Occurs as a measurable outcome of chemical reactions/instabilities between ingredients (or the degradation of ingredients) within the formulation, A change in the differential conductivity between the top and bottom of a sample with time can be indicative of separation or sedimentation occurring within the sample, A.G. Tekerlekopoulou, ... 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