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Rohsenow-Kendall Heat Transfer Lab @ MIT

This prototype was the first of its kind (full batch RO with a flexible bladder). In this prototype, the bladder and the membrane element were placed in the same vessel, showing this could be done for future prototypes. Batch RO energy models were validated within 2.7% (hydraulic work only). Salt retention and permeate backwash were measured and modeled. This work concluded with a techno-economic analysis.

This bench-scale prototype was developed by the Lienhard Research GroupThis bench-scale prototype was developed by the Lienhard Research Group

Some components (circulation pump, pressure transmitter, amongst others) from this proof of concept have been re-used for the MWLC and PUC prototypes.

Feed 2-5 g/kg (lab-grade NaCl)
Recovery up to 65%
Membrane Hydranautics ESPA 2514
Membrane array 1 element
water@harmonydesal.com

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Boston, MA 02135