Demonstration of Water Recovery from Hot, Humid Industrial Exhaust Gases
Water Recovery from Hot, Humid Industrial Exhaust Gases
Projects Updates/The Results
Project term extended to March 2022 due to Covid-19. This extension provided the project team time to obtain the equipment, install, commission the system and begin the 6 month measurement and verification period. The demonstration system is operational and has collected over 50,000 gallons of water. The project team will start finalizing data collection in the next few months and begin to update the final report.
This project is demonstrating an energy efficient method for water recovery from hot, humid exhaust gas at the United States Gypsum (USG) plant in Plaster City, CA. A demonstration scale Clean Liquid Water by Ejector-Assisted Recovery (CLEAR) unit will be attached to the humid exhaust gas and recover hot water from a portion of that exhaust gas. The recovered hot water will be reused on-site to produce heated drywall slurry, reduce natural gas use associated with heating water. If successful, the CLEAR unit will reduce natural gas use to operate the dryers and recover approximately 25% of hot water from the exhaust gas.
Increase the efficiency of natural gas fired industrial dryers while also recovering water (25% of water in the exhaust gas) that could be used for on-site reuse and reduce energy costs associated with heating water.
Key Project Members
Wilson Engineering Technologies
Tetra Tech Inc