Drinking water treatment

Effective treatment eliminates a wide range of impurities, including:

• Sediments (sand, silt, suspended particles)

• Pathogens (bacteria, viruses, protozoa)

• Chemical contaminants (PFAS, chlorates, pesticides, bisphenol A)

• Toxins (microcystin, pharmaceuticals, heavy metals)

Coagulation and Flocculation

Coagulation uses chemicals such as alum or iron salts to destabilize particles, while flocculation helps them clump together into larger aggregates for easier removal.

Sedimentation

The formed flocs settle at the bottom, separating most impurities from the water.

Filtration

Water is filtered through media such as sand filters, granular activated carbon, or advanced membranes (microfiltration, ultrafiltration, nanofiltration, and reverse osmosis drinking water systems) to remove residual contaminants.

Disinfection

Final disinfection using chlorine, chloramines, ozone, or UV light ensures pathogens are completely eliminated before distribution.

Saur ensures strict compliance with the EU Drinking Water Directive 2020/2184, including new thresholds effective in 2026 for:

• PFAS (0.10 µg/l)

• Bisphenol A

• Chlorates and Haloacetic Acids

• Microcystin-LR, Uranium, and other emerging contaminants

Reverse Osmosis Drinking Water Systems

Removes dissolved salts, heavy metals, and micropollutants.

• Advantages: High contaminant removal rate.
• Disadvantages: Higher energy consumption and wastewater production

Granular Activated Carbon (GAC) Filtration

Adsorbs organic compounds, pesticides, and odors.

• Advantages: Effective against taste and odor issues.
• Disadvantages: Requires regular media replacement.

Membrane Filtration

Includes microfiltration, ultrafiltration, and nanofiltration for removing pathogens and fine particles.

• Advantages: Delivers high-quality output.
• Disadvantages: Sensitive to fouling.

Ion Exchange Systems

Exchanges harmful ions with harmless ones, commonly used for water softening and nitrate removal.

• Advantages: Effective for targeted contaminants.
• Disadvantages: Requires regeneration and chemical handling.

Saur applies energy-efficient process designs and sustainable chemical strategies to reduce carbon emissions, resource usage, and operational costs. Advanced filtration and adsorptive media specifically target emerging pollutants such as pharmaceuticals and PFAS, ensuring a lower environmental footprint while maintaining high water quality.