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It's common knowledge that orders may change from month to month. In order to keep your supplier prepared for larger-than-normal orders, let your Account Manager know that youโre expecting an increase in demand as early as... (More)
Coagulation and FlocculationChemical treatment, in the form of coagulation and flocculation, is applied as a pretreatment method when the water is highly polluted with silt. In such cases, multimedia and pressure filtration setups could not handle the suspended solids, therefore requiring chemical assistance. First, a coagulant, like ferric chloride or polyaluminum chloride is dosed to destabilize the pollutants. After this, a polymer is added to initiate clumping to form larger particles called 'flocs', which are then easier to remove.
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Chemical treatment, in the form of coagulation and flocculation, is applied as a pretreatment method when the water is highly polluted with silt. In such cases, multimedia and pressure filtration setups could not handle the suspended solids, therefore requiring chemical assistance. First, a coagulant, like ferric chloride or polyaluminum chloride is dosed to destabilize the pollutants. After this, a polymer is added to initiate clumping to form larger particles called 'flocs', which are then easier to remove.
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Determining the correct pH during coagulation depends on the type of coagulant used and the sample, making this process specific to every application. If the pH is not optimized, the treatment could become inefficient. If it is too low, the... (More)
Traditionally, alum or aluminum sulfate is commonly used as a coagulant. Next to this is aluminum chloride; however, this is more expensive than alum. A cheap alternative is ferric chloride. However, it leaves a color, which would need to be... (More)
Coagulation is the process of adding a chemical reagent โ a coagulant โ to neutralize the charge of difficult-to-settle suspended solids and form microflocs, which are slightly bigger particles, but still difficult to settle. Flocculation is a succeeding process that... (More)