Dual Stage Configuration MIEX® System Brochure

MIEX®TreatmentSystems Dual Stage ConfigurationAdvanced ion exchangetreatment solutionsMIEX® Treatment System:Dual Stage ConfigurationThe Dual Stage configuration refers to a MIEX® System where ion exchange occurs in a flow-through mixed tank (contactor) and resin is recovered in a settling vessel (resin separator) (Figure 2).In this configuration, resin beads are dispersed to provide a high surface area to facilitate ion exchange. Raw water is mixed with MIEX® Resin in the contactor by an agitator operating at low speeds. The resin continuously flows downstream into the resin separator designed for hydraulic loading rates of 6gpm/ft2.The magnetic resin beads form large agglomerates that settle rapidly to the base of the separator. Settled resin is recovered from the separator and recycled back to the contactor while a small side-stream is regenerated. This regenerated resin is returned to the contactor to maintain the ion exchange capacity of the process. Treated water overflows the resin separator to downstream treatment. Virgin resin is periodically added to the process to make up for minimal quantities of resin that may be carried downstream.System SizesMIEX® Treatment Systems are available as packaged systems up to 2 MGD (MAGNAPAKm Systems) and as custom-designed systems for all capacities over 2 MGD. RegenerationVesselMake-up ResinResin RecycleContactorResin SeparatorFresh Resin TankTreated WaterWaste RegenerantRegenerantTankRaw WaterOrica Watercare MIEX®Ò4REATMENTÒ3YSTEMSÒkÒ$UALÒ3TAGEÒ#ONFIGURATIONThe MIEX®Treatment Process/RICAÒ7ATERCAREgSÒ-)%8® Treatment Process is an advanced ion exchange process using MIEX® Resin to remove target contaminants from water and wastewater streams. MIEX® Treatment Systems have small footprints, very low waste volumes and are not subject to chromatographic peaking, allowing ion exchange to be used in a wide variety of applications and throughputs.MIEX® ResinThe name MIEX® comes from hMagnetic Ion Exchangei. The resin beads have a magnetic property that allows them to agglomerate and settle rapidly, or fluidize at high hydraulic loading rates. Because of this unique feature, the resin is used in a continuous process with ion exchange occurring in either a mixed tank or a fluidized bed reactor vessel.Figure 2 Process Flow Diagram Figure 1 ContactorFigure 3 2 MGD MIEX® SystemFresh Resin TanksTreated WaterOutletResin Regeneration ProcessThe continuous withdrawal of loaded resin and return of fresh regenerated resin ensures a consistent treated water quality which prevents the chromatographic peaking that can occur with conventional ion exchange columns. Regenerant solutions typically consist of sodium chloride but other salts such as potassium chloride, magnesium chloride or sodium bicarbonate can be used if either sodium or chloride is not desired in the waste discharge.ResidualsThe highly efficient regeneration process keeps regenerant use and waste volumes to a minimum. Residual volumes from MIEX®Treatment Systems consist of waste from regeneration and are small, typically 0.02 to 0.06% of the plant throughput. Disposal options include sewer discharge, evaporation or coagulation/recycling of the regenerant solution.Placement in treatment trainThe MIEX® Process can be used as a stand-alone treatment for the removal of contaminants such as nitrate, arsenic or DOC, or in combination with other treatment processes to meet more than one treatment objective. Since the MIEX® Process is not affected by suspended solids in the source water, it can be placed in a number of locations throughout the treatment train. Typically it is used as a pretreatment step ahead of current processes. When used this way, the efficiency of downstream treatment processes can be greatly improved, resulting in less chemical demand and sludge production, better membrane operability, as well as improved solids separation through DAF and conventional sedimentation/filtration. The addition of a MIEX® System requires little alteration, if any, to existing treatment systems.DSC0207Visit our website at www.miexresin.com or contact your nearest Orica Watercareoffice for more information or to inquire about a specific application.MIEX® is a registered trademark of Orica Australia Pty. Ltd.Orica Watercare ServicesOrica Watercare performs laboratory and pilot evaluations to determine the optimum performance of MIEX® Resin on water and wastewater streams. A design package and budget estimate can be provided based on these feasibility studies. Orica Watercare is also fully equipped to supply process equipment and perform system commissioning and optimization upon installation.Orica Watercare Head Offices USAToll Free 1-877-414-miex T 303-268-5243 F 303-268-5250 Europe T 44-1257-256-616 F 44-1257-256-149 Asia Pacific T 61-3-9665-7111 F 61-3-9665-7937E miex@orica.comwww.miexresin.com