Case
Study Four
Hydrogen Sulfide, TSS and BOD Treatment - Agricultural Application
Problem:
A hog farm located in southeast Georgia was faced with a 5,500,000-gallon
waste lagoon that had gone septic. The lagoon had no presence of biological
activity and the solids build-up on the surface of the lagoon was at a
critical state. The twenty-year-old farm was also producing a high level
of hydrogen sulfide odors. The odors would become so offensive at times
that plant employees were unable to perform their duties because of respiratory
problems and eye irritation.
Solution:
Organic Products Company treated the waste lagoon with a single application
of the Histosol OP-Bio product at a level of 45 PPM (250 gallons). There
was an immediate noticeable reduction in offensive odors coming from the
lagoon. Within 14 days, the lagoon was showing signs of increased biological
activity and a substantial reduction in surface solids. At 21 days after
treatment, the lagoon was extremely active with biological activity. The
water had returned to a dull pink color and the surface solids were eliminated.
(See photographs on next page).
The barns
were treated for hydrogen sulfide with Histosol OP-9840. The product was
added to the 242-gallon rinse tanks in each barn at a rate one quart per
tank. Each barn contained 2 tanks that were used to flush the pit area
under the barns twice daily. The hydrogen sulfide reduction was immediate.
Covers were removed from the junction boxes and no offensive odors were
discovered.
Histosol
OP-9840 was also used in the cleaning process of the farrowing barn. The
product was applied with the use of a chemical input line on a pressure
washer at a rate of 6 ounces per gallon. The entire interior of the barn
was washed with the product. The results were outstanding. The only odor
apparent in the farrowing barn immediately following the treatment came
from the feed in the barn.
Application
of the Histosol OP-9840 continued for a test period of two months. The
plant employees reported remarkable reductions in respiration and eye
irritation side effects from the hydrogen sulfide odors.
Conclusion:
The Histosol OP-Bio product solved the TSS and BOD problems in the waste
lagoon after a single treatment. The lagoon was functioning properly 21
days following treatment. Hydrogen sulfide odors were greatly reduced
by using Histosol OP-9840 in the pit rinse system at the farm.
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