One-Step Ceramic Membrane Process for Small Drinking Water Treatment FacilitiesEPA Contract Number: 68D98161
Title: One-Step Ceramic Membrane Process for Small Drinking Water Treatment Facilities
Investigators: Liu, Paul K.T.
Small Business: Media and Process Technology Inc.
EPA Contact: Manager, SBIR Program
Project Period: September 1, 1998 through September 1, 2000
Project Amount: $224,830
RFA: Small Business Innovation Research (SBIR) - Phase II (1998) Recipients Lists
Research Category: Water and Watersheds , SBIR - Water and Wastewater , Small Business Innovation Research (SBIR)
Description:A low-cost, high-performance ceramic membrane has been developed by Media and Process Technology, Inc. (M&P) as an economical and reliable one-step treatment process ideal for the production of drinking water for small communities. Excellent removal of turbidity, microorganisms, and THM precursors was demonstrated in synthetic and actual waters with no chemical addition and sludge generation. The commonly encountered operational problems associated with membrane processes can be overcome with the proposed membrane. In Phase I, laboratory evaluation showed a >95% removal of THM precursors in a long-term evaluation (approximately 1,000 hours) using actual surface water obtained from Allegheny River. More importantly, a steady permeate flux was maintained throughout the 1,000 hours with appropriate fouling control. Preliminary economic analyses based upon the feasibility test results indicate that both the capital and operating costs are comparable to or less than existing commercial polymeric microfiltration membrane systems.
In Phase II, M&P will perform field tests using a pilot to demonstrate the proposed process and its long-term operating stability and to document its removal efficiency for future commercialization. The successful completion of Phase II will offer an economical and practical process to the small water treatment facility to meet current and future requirements.