English
Spanish
Case Study

São Paulo Waste Lagoon Treatment: 87% Lower BOD and 99% Less Oil and Grease in 2 Months with Wastewater Treat

A São Paulo waste lagoon cut BOD 87%, COD 83%, and oil and grease 99%, from 2,007 to 21 mg/L, in 2 months with Wastewater Treat, restoring open water.

99%
less oil and grease
87%
lower BOD
2 months
to visible results

Results at a glance

MetricBeforeAfter (2 months)
BOD4,800 mg/L642 mg/L (87% lower)
COD6,000 mg/L1,000 mg/L (83% lower)
Oil and grease2,007 mg/L21 mg/L (99% lower)
pH5.87.1
SurfaceCrusted, grease build-upOpen water restored

The problem

A waste lagoon in São Paulo, Brazil had developed high BOD and COD levels along with heavy oil and grease build-up, leaving the surface crusted and the water acidic at pH 5.8. The operator needed to digest the accumulated organic load, bring BOD, COD, and oil and grease down, and restore the lagoon without mechanical dredging or harsh chemicals. The trial evaluated whether Wastewater Treat (WT), a blend of six facultatively anaerobic microbial cultures that digest fats, sludge, and organic solids, could lower the lagoon's key metrics and restore open water when applied with proper aeration. Results were assessed after two months of treatment.

Before, during, and after

Before treatment, the waste lagoon carried a heavy organic and oil load: BOD at 4,800 mg/L, COD at 6,000 mg/L, and oil and grease at 2,007 mg/L, with the water acidic at pH 5.8. Accumulated solids and grease had crusted over the surface, and under conventional methods the lagoon faced mechanical dredging or chemical treatment to recover.
Before
Before treatment, the waste lagoon carried a heavy organic and oil load: BOD at 4,800 mg/L, COD at 6,000 mg/L, and oil and grease at 2,007 mg/L, with the water acidic at pH 5.8. Accumulated solids and grease had crusted over the surface, and under conventional methods the lagoon faced mechanical dredging or chemical treatment to recover.
During
After two months of Wastewater Treat applied with proper aeration, the lagoon's key metrics fell sharply. BOD dropped from 4,800 to 642 mg/L (87% lower), COD from 6,000 to 1,000 mg/L (83% lower), and oil and grease from 2,007 to 21 mg/L (99% lower), while pH corrected from 5.8 to a near-neutral 7.1. The crusted surface cleared and open water was restored, with no mechanical dredging or toxic chemicals. For municipal and industrial operators managing waste lagoons, holding tanks, and treatment ponds with high BOD, COD, and oil and grease, this case shows what a facultatively anaerobic microbial blend can deliver on organic load and water quality.
After
After two months of Wastewater Treat applied with proper aeration, the lagoon's key metrics fell sharply. BOD dropped from 4,800 to 642 mg/L (87% lower), COD from 6,000 to 1,000 mg/L (83% lower), and oil and grease from 2,007 to 21 mg/L (99% lower), while pH corrected from 5.8 to a near-neutral 7.1. The crusted surface cleared and open water was restored, with no mechanical dredging or toxic chemicals. For municipal and industrial operators managing waste lagoons, holding tanks, and treatment ponds with high BOD, COD, and oil and grease, this case shows what a facultatively anaerobic microbial blend can deliver on organic load and water quality.
Want the full trial on paper? Download the complete case study as a PDF.
Download PDF

Product used in this trial

Wastewater Treat (WT)

Have a lagoon or waste system with the same problem?

Tell us your system size and current numbers. We will recommend a starting dose and send a quote.

Request a Quote
FacebookLinkedin
BIO-GREEN PLANET © COPYRIGHT 2021. ALL RIGHTS RESERVED.
Footer Logo
Footer Logo
Footer Logo