BNR 101: Pilot Study
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centrate to reduce nitrogen load. Process control
(DO, pH, temperature, and free ammonia) is key to
maintaining the right microbial population and structure
to maximize performance. For an industrial waste
stream, the deammonification process still requires a
pilot to validate the effectiveness of the technology. In
the pilot study at MSDGC, the ANITA Mox technology
was capable of removing COD and nitrogen from landfill
leachate. The deammonification process provides a cost-
effective alternative to the landfill leachate pretreatment
processes. This is valuable information for MSDGC
during their process in evaluating the construction
of a new wastewater treatment plant. On another
deammonification pilot project, significant inhibition
on bacterial activity was
found when treating
combined wastewater
from a tannery and a pig
slaughter house.
Dr. Ting Lu is currently an environ-
mental scientist at Black & Veatch, for-
merly at MSDGC. She received a Ph.D.
at the University of Cincinnati and is
a member of the Water Environment
Federation and the Ohio Water
Environmental Association.
Hong Zhao graduated with a
Ph.D. in environmental engineer-
ing from the University of British
Columbia. Zhao has been a pro-
cess engineer at Kruger, a Veolia
Water Technologies company, for
more than 15 years.
Biju George is the deputy director of
the Greater Cincinnati Water Works
& Metropolitan Sewer Department
(MSD). George joined the MSD in
1991 and served as the deputy director
since 2006 and Hamilton County, OH,
sanitary engineer since 2007. Prior to
that, he held various positions includ-
ing engineer, supervising engineer, and
assistant superintendent.
Figure 3. COD profiles in each reactor during MBBR and IFAS phases
Figure 4. Ammonia profiles in each reactor during MBBR and IFAS phases
Figure 5. TIN profiles in each reactor during MBBR and IFAS phases