Atomized liquid spray filtration systems address the deficiencies of the current barrier-type filtration systems. Pressure drop across the liquid spray is low because there is no obstruction to the airflow; thus the system will require less space and can operate with conventional ventilation fans . The pressure drop does not increase with time because there is no buildup of particulate on a filter media; the contamination is carried from the filtration site by the liquid. S.R. Taylor and associates has been developing a novel ultrasonic atomizer that offers significant advantages over traditional two fluid atomizers. Our invention allows atomization of any liquid over a wide range of flow rates where the atomized droplet size is independent of the liquid feed rate. No outside source of energy other than electrical energy to drive the ultrasonic transducer is required . SRTA, along with its subcontractor southwest research institute, proposes to use its experience with ultrasonics and air filtration to develop an ultrasonic atomizer, to determine the appropriate operating conditions for successful atomization, to use these atomizers to filter dust and vapor contaminants from a gas stream. Phase I studies will focus on demonstration of feasibility and preliminary design studies providing the support for the Phase II prototype development and actual liquid filtration testing.
