TITLE:
Full Scale SBR Municipal Wastewater Treatment Facility Utilization of Simultaneous Nitrification/Denitrification Coupled with Traditional Nitrogen Removal to Meet Water Criterion
AUTHORS:
Charlie L. Martin Jr., Clayton J. Clark II
KEYWORDS:
Nitrification, Denitrification, Chemical Oxygen Demand (COD), Sequential Batch Reactor, Municipal Wastewater
JOURNAL NAME:
Green and Sustainable Chemistry,
Vol.12 No.2,
April
12,
2022
ABSTRACT: Simultaneous nitrification denitrification (SND) is a well-established
phenomenon in biological nutrient removal activated sludge systems. Study at a
municipal wastewater treatment facility sought to determine nitrogen removal
effectiveness within a full-scale sequential batch reactor (SBR) system
utilizing SND in conjunction with traditional nitrogen removal. In addition to
characterizing extent of SND, the research examined the ability of SND to meet
state-based effluent water quality standards. At the selected facility, the
average SND efficiency during a two-month sampling period was 52.8%,
paralleling results from similar SBR municipal wastewater systems. The observed SBR system had removal efficiencies > 99%
for the influent to effluent -N concentrations. The SND process also resulted in average NO3-NO2-N
concentration that was 82% lower than the theoretical concentration under
comparable circumstances. Overall, nitrogen removal for this SBR system was
>99% which typified results in other SND systems, but at a higher Total
Nitrogen removal rate.