Study on Differential-type Energy Recovery Device in Reverse Osmosis

A differential-type energy recovery device in reverse osmosis desalination was developed.After performance test and continuous running test of 8×24 hours,the results indicate that all performance index of the differential-type energy recovery device meet the requirements of Energy Recovery Device in Reverse Osmosis(HY/T 108-2008).Moreover,the energy transfer efficiency is over 94.6%.This energy recovery device can be operated stably and meet the requirements of reverse osmosis desalination system,which has been already used in test of reverse osmosis membrane successfully.