PoultryUSA - May 2018 - 41
Jesse Scott and David Parks
stand in front of membrane
bioreactor ultrafilters. John Pierson
Enhanced phosphorus precipitation,
denitrification and biomass storage
occur with the reconfigured existing
lagoons. More importantly, Wayne
Farms Pendergrass applied for,
and received, a National Pollutant
Discharge Elimination System
permit from the state of Georgia's
Environmental Protection Division
for direct discharge to Allen Creek,
a tributary to the Middle Oconee
River watershed listed as an impaired stream.
"We upgraded the wastewater
treatment system including an
offal area surge tank to tackle
the overflows," said David Parks,
Wayne Farms Pendergrass facility
wastewater manager. "Now we
manage offal and do a better job
with that overall flow equalization
During the offal area upgrades,
Parks and his team still had to address the unexpected impacts on
the wastewater system.
"While all that was going on,
we got more efficient at running our
DAF and managing our existing but
limited EQ basin," Parks said.
The team also learned a lot
during the system startup.
"Some water quality parameters, like scale from hard water,
matter a lot more with membranes,"
Parks said. "We benefited from
upgrading the existing system, but
we had to address both debris in the
sequencing batch reactor tank we
now use for the aerobic biological
tank and out in the lagoons."
Using best practices
Crew Leader Jesse
Scott said the startup
reinforced the idea
that attention to detail
and preventative maintenance are
critical. But he said the overall system performs well given the variability of the incoming wastewater
and limited EQ storage. Scott said
effectively operating the dissolved
air flotation (DAF) and the biological portion of the system is still
the important part of ensuring the
membranes remain effective.
As a result, the new MBR
and UV treatment coupled
with other upgrades at Wayne
Farms Pendergrass yielded a
permitted discharge with nondetectable levels for pathogens and
overall water quality greater than
the previously land applied method.
Jeff Carroll, corporate environmental manager for Wayne
Farms Pendergrass, said the
facility now reuses about 95,000
gallons per day of ultra-filtered
wastewater for pump seals, offal
solids transport and screens.
Wayne Farms Pendergrass
and its employees are active and
focused on regular community service. Moving forward, leadership
sees its efforts to assure its groundwater resource sustainability, and
a secure water supply based on its
Read more: Transforming poultry
wastewater into renewable resources,
innovative wastewater system, as a
long-term way to give back to the
community while maintaining the
88-acre LAS as a wildlife habitat.
Wayne Farms Pendergrass envisions a path forward possibly including direct potable reuse (DPR)
for more sustainable water reuse.
While science, technical and policy considerations regarding DPR
remain, Wayne Farms Pendergrass
committed to minimizing its potable water footprint through conservation and safe water reuse. ■
John Pierson is principal research engineer at the Agricultural Technology Research Program at the Georgia
Tech Research Institute. Contact email@example.com.
May 2018 ❙ www.WATTAgNet.com