Treatment of settling pond Bitza (Moscow region)

The purpose of the experiment was to demonstrate the effectiveness and environmental safety of using BIOCHLOFEEDⓇ to combat organic pollutants and pathogenic microflora in a settling pond in Bitza (total area - 1.1 ha), as well as eliminate the smell of hydrogen sulfide and improve the quality and transparency of water in the pond.

The objectives of the experiment included:

Carry out biological remediation of the pond using biotechnology BIOCHLOFEEDⓇ ;
Conduct related observations and records;
Treat pond water from organic pollutants and pathogenic microflora;
Eliminate the smell of hydrogen sulfide in the pond;
Improve the appearance and recreational properties of the pond.

Description of the experiment

Before introducing the BIOCHLOFEEDⓇ biological product into the pond, as well as during the pilot project from May to August 2021 (once a month) and after its completion, specialists from the Chemical Research Center (Moscow) took water samples for analysis for COD, organic pollutants (P, Nt, NO2, NO3, NH4, Norg), on pathogenic microflora (Escherichia coli) and on the amount of oxygen dissolved in water.
On May 8, 2021, our specialists, using a boat, evenly applied the bioproduct BIOCHLOFEEDⓇ in a volume of 140 liters along the entire perimeter of the storage pond.
Before adding the bioproduct BIOCHLOFEEDⓇ, the water in the pond was of poor quality. Large amounts of total nitrogen, ammonium and E. coli were detected. The smell of hydrogen sulfide periodically emanated from the pond. In July and August, blue-green algae (cyanobacteria) constantly “bloomed” in the pond. After adding the biological product BIOCHLOFEEDⓇ , the problem with blue-green algae was completely resolved and the pond did not “bloom” in 2021.
After a month, the smell of hydrogen sulfide completely disappeared. During the experiment, the results of water tests for organic pollutants and pathogenic microflora showed full compliance with sanitary standards. The water in the pond became more transparent, the number of fish in the pond (crucian carp, roach) increased.
On August 31, 2021, the pilot project was considered successful and ended.

Analyzes from April 24, 2021:

COD - 965 mg/l, P - 7.98 mg/l, Nt - 82.5 mg/l, NO2 - 0.07 mg/l, NO3 - 0.75 mg/l, NH4 - 76.4 mg/l, Norg - 5.28 mg/l, Oxygen - 4.4 mg/l, E.coli - 6700000 cfu/100mL.

Analyzes from Juny 20, 2021:

COD - 465 mg/l, P - 6.17 mg/l, Nt - 42.1 mg/l, NO2 - 0.48 mg/l, NO3 - 1.16 mg/l, NH4 - 18.2 mg/l, Norg - 22.26 mg/l, Oxygen - 7.5 mg/l, E.coli - 5400 cfu/100mL.

Analyzes from July 20, 2021:

COD - 87 mg/l, P - 4.35 mg/l, Nt - 26.2 mg/l, NO2 - 0.67 mg/l, NO3 - 1.45 mg/l, NH4 - 2.6 mg/l, Norg - 21.48 mg/l, Oxygen - 8.3 mg/l, E.coli - < 10 cfu/100mL.

Analyzes from August 30, 2021:

COD - 19 mg/l, P - 6.13 mg/l, Nt - 17.2 mg/l, NO2 - 0.76 mg/l, NO3 - 1.12 mg/l, NH4 - 0.2 mg/l, Norg - 15.12 mg/l, Oxygen - 12.5 mg/l,
E.coli - < 10 cfu/100mL.

Fight against cyanobacteria

The method has shown well the possibilities of effectively and safely blocking the development
of cyanobacteria in a pond. Despite the constant flow of wastewater into the pond, due to the dominance in the pond of the KD BCF strain of green microalgae of the Chlorellaceae family, on the basis of which the bioproduct BIOCHLOFEEDⓇ is produced, cyanobacteria were unable to develop and the pond did not “bloom” in 2021.

Removal of organic pollutants

The method of treating a pond from organic pollutants using BIOCHLOFEEDⓇ biotechnology has proven itself to be a super-effective, environmentally friendly and inexpensive treatment method. The presence of a large amount of oxygen in the pond promotes the rapid development of microorganisms that feed on residual harmful substances that are saturated with wastewater, which helps eliminate the unpleasant odor and generally improve the situation.

Destruction of pathogenic microflora

Thanks to the unique bactericidal properties of the KD BCF strain, E. coli was practically destroyed in the pond in the shortest possible time. Without the use of the tertiary stage of treatment in the form of chlorination and ultraviolet irradiation.

Main conclusions:

Despite the difficult conditions (constant flow of sewage into the pond), the method has proven to be effective and environmentally friendly.
In addition to its main objective (control of blue-green algae, organic pollutants and pathogens), the method has demonstrated the ability to significantly improve the appearance and recreational qualities of the pond.
Cost-effectiveness calculations have proven that there is no economic alternative to BIOCHLOFEEDⓇ biotechnology for sewage treatment. .