MEMBRANE BIOREACTORS - A DESIGNER'S PERSPECTIVE

Author: Crawford George   Thompson Doug   Lozier Jim   Daigger Glen   Fleischer Ed  

Publisher: Water Environment Federation

ISSN: 1938-6478

Source: Proceedings of the Water Environment Federation, Vol.2000, Iss.9, 2000-01, pp. : 311-319

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Abstract

Membrane bioreactor systems are an emerging advanced wastewater treatment technology that has been successfully applied at a variety of relatively small plants. Based on recent testing and design of membrane bioreactor facilities, the cost of membrane systems is becoming more affordable, membrane equipment is becoming more reliable, and the performance of membrane bioreactor systems is becoming better understood. Information about membrane systems, their performance and cost, however, is limited and not readily available to those who have not yet investigated or designed such facilities. It is the purpose of this paper to present a practical understanding of the design and evolution of membrane bioreactor systems. That understanding will be based on testing, design, and operational experience with membrane bioreactor systems at a variety of locations. The authors have gained these common understandings by working together at plants in Canada and the United States.The paper will address a variety of information about membrane bioreactor systems, including performance, process implications, equipment, and costs. Specific applications will be discussed, including the use of chemicals for phosphorus removal, and the use of aerobic and anoxic zones for ammonia and nitrogen removal.