TECHNOLOGIES WATER MAZE OFFERS A WIDE RANGE OF WATER TREATMENT TECHNOLOGIES PRE-TREATMENT IS A VITAL PART OF ALL WATER TREATMENT SYSTEMS PRE-TREATMENT All water treatment systems should include “adequate” pre-treatment. The definition of “adequate” may vary depending on the site specific application conditions and the physical and chemical properties of the influent water. The primary objective of pre-treatment is to prepare the water for additional downstream treatment. For some applications, simply adjusting the pH of the water will effectively change the physical characteristics of the water and perhaps will provide easier downstream treatment. A well designed pit system that removes settleable heavy solids will reduce the burden the downstream equipment from being overwhelmed. If changing or adding the pit system is not feasible, perhaps adding an above-ground cone-bottomed clarifier tank is an option. For some applications, where there is an abundance of free-floating oils in the water, pre-treatment to remove excessive amounts of free-floating oils prior to addressing the emulsified oils may be required. OILS: FREE-FLOATING, EMULSIFIED, AND SOLUBLE OIL/WATER SEPARATION Oil/water separators are generally capable of separating free-floating oils, rather than chemically emulsified oils, or soluble oils from water. Many unaware buyers will request an oil/ water separator, without knowing the physical characteristics of the oils as they exist in the water. This can result in a costly mistake. 6 Are the oils free-floating? Traditional oil/water separators are applied to applications where the oils are buoyant and floating on the surface. Are the oils chemically emulsified and dispersed within the water? Instead of traditional oil/water separators, a “de-emulsifying” water treatment technology should be considered for your application. Are the oils water soluble ? Traditional oil/water separators are not normally applied. Rather, reducing the water volume prior to off-site disposal (using evaporation technology) should be considered for treatment.
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