PX Pressure Exchanger Reduces Barriers to Achieving ZLD in CTX Wastewater Treatment

Beijing BeiJieTe used a combination of internal recirculation high-pressure reverse osmosis (HPRO), nanofiltration, and their own industry-leading salt separation technology to treat wastewater. The combination of these three processes resulted in true ZLD, where there is no wastewater remaining at the end of the treatment process, and effectively separated and purified the salt present in the water.

The HPRO stages incorporated Energy Recovery’s PX Q300 pressure exchanger technology, which is able to capture pressure energy as wastewater moves through the HPRO process and recycle it back into the system, significantly reducing the amount of energy needed to pressurize the wastewater feed stream.