Date of Award

Summer 7-28-2020

Semester of Degree

May

Document Type

Open Access Dissertation

Degree Name

Ph.D. in Environmental Science

Department

Environmental Science, Division of

Major Professor

Klaus Doelle

Steering Committee Member

William A. Powell

Steering Committee Member

Deepak Kumar

Steering Committee Member

Richard Beal

Steering Committee Member

Siddharth G. Chatterjee

Steering Committee Member

Steve Giarrusso

Abstract

This dissertation discusses two Bio-Tower applications in wastewater treatment in the Village of Minoa for removing Chemical Oxygen Demand (COD), Ammonia Nitrogen (NH3 -N), and Total Phosphorus (TP). The Laboratory Benchtop Bio-Tower System and the Packed Bio-Tower System can effectively remove 60% to 80% of COD and over 90% of NH3-N in wastewater from the primary clafier effluent under various feeding rates. The Bio-Tower’s ability to remove TP was not significant. For the Laboratory Benchtop Bio-Tower System, five out of nine results showed that the removal efficiency was under 20%. In another Laboratory Benchtop Bio-Tower System test was done by pre-running the system with diluted cow manure indicated that the system could remove 60% to 80% of TP. This study also found the four-parameter logistic regression model can best describe the Chemical Oxygen Demand (COD), Ammonia Nitrogen (NH3 -N), and Total Phosphorus (TP) concentration change over time for both The Laboratory Benchtop Bio-Tower System and the Packed Bio-Tower System under various feed flow rate.

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