Macmanus, Justin

Justin Macmanus is a water/wastewater EIT at HDR in Fort Worth, Texas. He graduated from Texas A&M University with a Bachelors degree in...

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About Macmanus, Justin

Justin Macmanus is a water/wastewater EIT at HDR in Fort Worth, Texas. He graduated from Texas A&M University with a Bachelors degree in Biological and Agricultural Engineering and then attended Virginia Tech for his Masters degree in Civil Engineering. During his time at Virginia Tech, Justin conducted his graduate school research on partial denitrification/anammox at Hampton Roads Sanitation District.

Macmanus, Justin

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Description: Startup and Pilot Testing of MBBR and IFAS Partial Denitrification/Anammox...

Startup and Pilot Testing of MBBR and IFAS Partial Denitrification/Anammox Processes

Abstract

This study was conducted to investigate the startup requirements of a partial denitrification/anammox (PdNA) moving bed biofilm reactor (MBBR) and the carbon demand and nitrogen removal capabilities of a two-zone MBBR process and a PdNA integrated fixedfilm activated sludge (IFAS) process. The MBBR process consisted of a PdNA zone followed by an anammox zone. During the startup experiment, anammox activity was detected less than 2 months after startup in MBBRs containing either preliminary biofilm or virgin carriers, demonstrating that anammox could be grown in a mainstream polishing PdNA MBBR without seed, and with low effluent ammonia and nitrite concentrations. Operation of the PdNA MBBR and IFAS processes showed that both a mainstream polishing PdNA MBBR and PdNA IFAS reactor can produce low effluent TIN concentrations with relatively low carbon requirements compared to the conventional nitrification/denitrification nitrogen removal process, even with relatively low and unstable partial denitrification (PdN) efficiencies in both.

This study was conducted to investigate the startup requirements of a PdNA MBBR and the carbon demand and nitrogen removal capabilities of PdNA MBBR and IFAS processes. Anammox activity was detected less than 2 months after startup in MBBRs containing either preliminary biofilm or virgin carriers, demonstrating that anammox could be grown in a mainstream polishing PdNA MBBR without seed. Operation of the PdNA MBBR and IFAS processes showed that both a mainstream polishing PdNA MBBR and PdNA IFAS reactor can produce low effluent TIN concentrations with relatively low carbon requirements compared to the nitrification/denitrification nitrogen removal process.

SpeakerMacmanus, Justin

Presentation time

16:15:00

16:25:00

Session time

16:00:00

17:30:00

SessionPDNA Applied Research

Session number116

TopicFacility Operations and Maintenance, Municipal Wastewater Treatment Design, Nutrients, Research and Innovation

Author(s)

Justin Macmanus

Author(s)J.E. Macmanus1,2; C.B. Bott2; H. De Clippeleir3; M.E. Parsons2; S. Klaus2;

Author affiliation(s)Virginia Polytechnic Institute & State University, Blacksburg, VA1Hampton Roads Sanitation District, Virginia Beach, VA2District of Columbia Water and Sewer Authority, DC3

SourceProceedings of the Water Environment Federation

Document typeConference Paper

PublisherWater Environment Federation

Print publication date Oct 2021

DOI10.2175/193864718825158011

Volume / Issue

Content sourceWEFTEC

Word count12

Base text size -

Macmanus, Justin

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