On a late F riday afternoon in June, a call came in to USP Technologies (USP): a
major poultry processing plant in the Southeast was in danger of
violating their wastewater discharge permit. They needed a solution
fast or face fines, a temporary shutdown of operations and significant
lost revenue. The poultry plant's 3.5 million gallon aerated
wastewater treatment lagoon was unable to maintain sufficient dissolved
oxygen (DO) and was unable to achieve ammonia and biological oxygen
demand (BOD) removal requirements. These conditions were brought about
by a combination of warm seasonal temperatures of over >90 F, (lower
O2 solubility) and higher than normal chemical oxygen demand (COD)
loading to the treatment system. In addition, the oxygen depleted
lagoon was generating significant hydrogen sulfide (H2S) odors. The solution was a turn-key hydrogen peroxide dosing program to
supplement the plant's aeration equipment and get the lagoon DO levels
back to a target range of 2 - 3 mg/L . (See Supplemental Dissolved Oxygen for chemistry details on use of H2O2 for supplemental dissolved oxygen in biological treatment systems) The USP Engineering team reacted quickly, working over the weekend
to prepare an appropriately designed storage and dosing system and
overnight shipping it to the site for installation in the field. The
Team mobilized on Sunday to install and prepare the systems for a Monday
start-up. By Monday afternoon, the hydrogen peroxide system was fully
installed and dosing started at about 3:00 pm, a mere 72 hours from the
initial phone call from the poultry plant. Sampling of the lagoon
by USP demonstrated that, within 24 hours, the hydrogen peroxide
addition to the aerated lagoons resulted in measurable increases in DO
and elimination of H2S odors. With continued dosing of hydrogen
peroxide, the DO levels increased incrementally over the next several
days. By the following weekend, DO levels were back in the 2 - 3 mg/L
target range and the ammonia and BOD levels were trending downward. The
plant was out of discharge violation danger. This poultry plant
continued to use hydrogen peroxide for supplemental DO throughout the
summer and early fall until cooler temperatures and lower COD loading to
the lagoons allowed their aeration systems to maintain required DO
levels on their own. USP Technologies removed the storage and dosing systems
at the conclusion of the project.
The USP Technologies Advantage- With
considerable inventory of tank and pump systems as well as our
partnerships with leading chemical suppliers, USP Technologies can mobilize
chemicals and equipment quickly to respond to your rapid response needs,
often within 24 hours.
- We offer dosing options are designed to
meet all safety requirements and sized to meet your specific process and
dosage rates requirements.
- Our Applications Engineers and
Equipment and Engineering Services teams will provide timely and
thorough applications assistance and technical support during the entire
project.
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