Modeling climatic effect on physiochemical parameters and microorganisms of Stabilization Pond Performance

Area of Science:

• Environmental Engineering
• Wastewater Treatment Technologies
• Ecology

Background:

• Stabilization ponds are crucial for post-secondary wastewater treatment.
• Extended aeration followed by lagoons is a common treatment model.
• Climate significantly influences pond performance through vertical mixing.

Purpose of the Study:

• To evaluate the relationship between physiochemical parameters, microorganisms, wastewater, and climate in stabilization pond performance.
• To assess the efficiency of combined extended aeration and lagoon systems.
• To provide recommendations for improving water quality and reuse.

Main Methods:

• The study was conducted as a post-treatment analysis after secondary wastewater treatment.
• A model combining extended aeration with lagoons was employed.
• Data on physiochemical parameters, microbial interactions, and climate were collected and analyzed.

Main Results:

• Stabilization ponds achieved 98%-99% removal of Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD).
• Significant removal of nitrogen, phosphorus, and heavy metals was observed.
• Climate functions were found to directly impact pond mechanisms and microbial biomass.

Conclusions:

• The interaction between climate, physiochemical parameters, and microbial communities is key to efficient wastewater treatment in stabilization ponds.
• The studied system demonstrates high efficiency in pollutant removal, making treated water suitable for irrigation.
• Recommendations are provided to further enhance water quality and promote recycling for agricultural purposes.