8 Makeup Water Treatment Plant Start-Up
The pretreatment system should be placed in service prior to the demineralization system. Systems with clarifiers or precipitation softeners can require two or more weeks of operation before the effluent water quality is suitable for supply to the demineralization system. Once the pretreatment system is functional and providing satisfactory quality water, the on-site demineralization system can be commissioned. If the pretreatment system is performing poorly and demineralized water is needed, mobile demineralization equipment should be used to avoid fouling resins or membranes in the new demineralization equipment.