While water treatment plants produce safe drinking water, they inevitably produce waste products, as well. In the treatment process of drinking water resources, the contaminants that are unhealthy or undesirable for consumption are removed in water treatment plants. The generated waste products are named as ‘residuals’ and may be organic and inorganic compounds in liquid, solid, and gaseous forms depending on quality of the water resources, drinking water production rate, efficiency of the drinking water treatment system, the amount of treatment chemicals used, and type of water resource treated. Residuals commonly generated from coagulation/filtration, precipitative softening plant, membrane separation, ion exchange and granular activated carbon units. The residuals volume at water treatment plants mostly alter seasonally or monthly.Since residuals are altered forms of contaminants; management of them should be included in management programs for water treatment plants. However, development of a cost-effective plan to remove and dispose of residuals might be complex. Therefore when developing a comprehensive water treatment residuals management plan; form, quantity, and quality of the residuals should be characterized; appropriate regulatory requirements should be determined; feasible disposal options should be identified, appropriate residuals processing/treatment technologies should be selected and a residuals management strategy that meets the goals established for a water treatment facility should be developed.
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