The Autostrada team is implementing an important project — the creation of a modern water treatment system that will provide Mykolaiv residents with high-quality drinking water in line with sanitary standards. The new treatment unit includes a multi-stage process designed to effectively tackle seasonal and chemical pollution in the waters of the Southern Bug.

How will the treatment system work?
Stage 1 — pH adjustment. At this step, sulfuric acid is added to balance the water’s acidity and alkalinity. This is a basic but critical step for ensuring proper purification later.
Stage 2 — Manganese removal and preliminary disinfection. During algae bloom seasons, manganese levels in the water rise. To remove it, sodium permanganate will be applied, which oxidizes and precipitates manganese. When manganese is absent, sodium hypochlorite will be used for preliminary disinfection.
Stage 3 — Coagulation. A coagulant is added to bind fine particles (clay, silt, organic matter, microscopic algae) into larger formations called flocs.
Stage 4 — Flocculation. Flocs are enlarged and strengthened, making it easier to capture them at the filtration stage.
Stage 5 — Microfiltration. Disc filters remove even the finest impurities, producing almost fully purified water.
Stage 6 — Chlorination. Final disinfection ensures water safety before it enters the city network.

In warm seasons, when algae blooms or unpleasant odors appear, an additional purification stage will be applied — powdered activated carbon dosing. Thanks to its porous structure, activated carbon effectively adsorbs organic compounds, toxins, and byproducts of microorganisms. Combined with sand filters, this provides additional mechanical filtration, removes odors, improves taste, and ensures the water meets drinking standards.

To guarantee precision and efficiency at every stage, a modern automated control system will be implemented:

• Sensors installed at the first lift pumping station and at the treatment plant’s outlet will analyze 18 key water quality parameters in real time — both at intake and after the full purification cycle;

• Automatic regulation of reagent dosing at each stage;

• Pump management, adjusting pressure and flow depending on city demand;

• Optimization of reagent consumption — when the water is clean, the system reduces their concentration.

With advanced technologies, automation, and adaptability to seasonal changes, Mykolaiv residents will have access to consistently clean water year-round.

Currently, active monolithic works are underway at the treatment facility — concreting of walls and construction of the main structural elements. Commissioning is scheduled for late 2025.

In parallel with the water treatment plant in Mykolaiv, Autostrada specialists have also started building a new wastewater treatment facility in Nova Odesa.

Today, the existing wastewater facilities in Nova Odesa are in poor condition: most networks built 30–40 years ago are outdated, with some in emergency condition. The new facility project includes:

• Capacity of 200 m³ of wastewater per day;

• A pumping station with a screening unit to remove large debris;

• An equalization tank with a sand trap to balance flow and composition;

• Primary treatment in aeration tanks and biofilters, where microorganisms will break down organic matter and nitrogen compounds;

• Secondary clarifiers to separate sludge from water;

• Final treatment in biofilters and disinfection with sodium hypochlorite.

The new system will ensure effluents meet sanitary standards, with excess sludge dewatered and safely disposed of, significantly improving the region’s environmental condition. Construction is planned for completion by the end of this year.