Cost effective RO from ELGA Process Water

ELGA Process Water has announced two new models in their market-leading maxiRO range of reverse osmosis units. The new models, the maxiRO 14-4000 and maxiRO 14-5000 deliver 4m3/h and 5m3/h respectively and extend the maxiRO range into large commercial and industrial systems.

Like other models in the maxiRO range, the new models use low pressure membranes which remove up to 98% of dissolved inorganics and over 99% of large dissolved organics, colloids and particles whilst low operating pressures – generally below 14bar – keep operating costs to a minimum. Competitively priced to appeal to the commercial and industrial user of boiler ake up, cooling and process water, these RO units are self-contained, compact and designed to blend into the modern plant room environment.  

Control is by means of a sophisticated microprocessor controller accessed via an HMI style panel which gives a clear display of flow, pressure, water quality and temperature, together with operational status and error messages. The controller provides a volt-free alarm contact and a 4-20mA analogue signal to transmit treated water conductivity to a distributed control system (DCS), Building Management System (BMS) or other PLC based systems. The controller also provides a data-logging facility for trending. Automatic permeate diversion to drain on start-up is standard, to ensure that water quality is achieved and maintained, as is automatic timed re-circulation to avoid membrane fouling during idle periods. The maxiRO units can be supplied with optional antiscalant or sodium bisulphite dosing equipment which simply “plug-and-play” using the standard controller.

All the models can be directly coupled in series to create a twin pass arrangement and can be provided with blending facilities where specific water quality has to be met. Automatic pH monitoring and control is a further option on the larger units.

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