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Improving Design of the BNR Process in Wastewater Treatment Plants from an Operations Perspective

Title: Improving Design of the BNR Process in Wastewater Treatment Plants from an Operations Perspective.
Name(s): Zickefoose, Brie, author
Leszczynska, Danuta, professor directing thesis
Hilton, Amy Chan, committee member
Dzurik, Andrew, committee member
Department of Civil and Environmental Engineering, degree granting department
Florida State University, degree granting institution
Type of Resource: text
Genre: Text
Issuance: monographic
Date Issued: 2004
Publisher: Florida State University
Place of Publication: Tallahassee, Florida
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: Sole nutrient removal from wastewater discharges has become an increasing challenge, as regulatory authorities tighten discharge standards to avoid eutrophication problems in receiving waters. Engineers have become aware that there is a need for new engineering design of standard wastewater treatment plants that should include removal of nutrients (nitrogen and phosphorus) in an efficient and cost effective manner. This need led to the development of biological nutrient removal (BNR) process, which is a distinctive modification of the basic activated sludge process. The BNR process is controlled in bioreactor with separate zones that create different biochemical environments, which allow the system to remove a high degree of nitrogen and phosphorus from the wastewater. There are many uncertainties and uncontrollable factors in the BNR process, therefore achieving high reliability depends heavily on knowledgeable operators and engineers. Operators and start-up engineers can help design engineers become more knowledgeable about uniqueness in design by passing on key information that becomes available during operations. This information was collected and used to improve design's layout of BNR bioreactor to accommodate all observed operational deficiencies. The deficiencies found during operations were related to start-up conditions, climate, process related issues and equipment spacing. Start-up conditions, climate and equipment need to be considered more closely during design. Engineers can learn from the process related deficiencies found during operations to improve the process design.
Identifier: FSU_migr_etd-0507 (IID)
Submitted Note: A Thesis submitted to the Department of Civil and Environmental Engineering in partial fulfillment of the requirements for the degree of Master of Science.
Degree Awarded: Degree Awarded: Spring Semester, 2004.
Date of Defense: Date of Defense: March 31, 2004.
Keywords: Nutrient Removal, BioWin
Bibliography Note: Includes bibliographical references.
Advisory committee: Danuta Leszczynska, Professor Directing Thesis; Amy Chan Hilton, Committee Member; Andrew Dzurik, Committee Member.
Subject(s): Civil engineering
Environmental engineering
Persistent Link to This Record:
Owner Institution: FSU

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Zickefoose, B. (2004). Improving Design of the BNR Process in Wastewater Treatment Plants from an Operations Perspective. Retrieved from