BIOLOGICAL REMEDIATION OF PASTERNIK RESERVOIR IN STARACHOWICE 2021 & 2022

. The Pasternik Reservoir in Starachowice consists of 2 zones separated by a dike: the intake part and the recreational part - both zones are interconnected by two flows. Bioremediation works were carried out only within the recreation area.

Commission measurements of the thickness of bottom sediments for 7 points in accordance with the project conditions

.Prior to the introduction of microbiological biopreparations, monitoring tests were carried out at 7 points on the reservoir in accordance with the project implementation conditions.

Bottom Sediments

Table No. 1. Tests of the bottom sediment layer at measurement points P1 - P7.

Graph No. 1. Bottom sediment comparison, July 23, 2021 to July 25, 2022 ( cm)

In summary, the average amount of sediment on July 23, 2021 was 90.29 cm, and after 12 months on July 25, 2022 it was 18.00 cm. The sludge was reduced on average by 72.29 cm, which gives an average sludge reduction of 80.01%. The project assumes a reduction of 70%.

Measurements of dissolved oxygen concentration in water in the surface layer

Table No. 2. Tests of the concentration of oxygen dissolved in water in the surface layer at measurement points P1 - P7.

Graph No. 2. Oxygen concentration (surface layer), comparison 23/07/21 to 25/07/2022 (cm)

Measurements of dissolved oxygen concentration in water in the bottom layer

Table No. 3. Tests of the concentration of oxygen dissolved in water in the bottom layer at measurement points P1 - P7.

Graph No. 3. Oxygen concentration (bottom layer), comparison from 23/07/21 to 25/07/2022 (cm)

As can be seen in the table above, the concentration of oxygen in the bottom layer has increased dramatically - this is one of the most important indicators illustrating the positive process of rebuilding the ecological potential in the reservoir using the technology of bioremediation of aquatic ecosystems. The reconstruction of the aerobic zone at the bottom was carried out 100% biologically. In addition, the data indicate that putrefaction processes have stopped in the bottom layer of the reservoir - large amounts of oxygen are consumed during the putrefaction process.

ALL RESULTS OBTAINED IN THE PASTERNIK RESERVOIR PROJECT HAVE BEEN ACHIEVED AND EVEN SIGNIFICANTLY EXCEEDED