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Odor and flavor of water

Odors and flavors of water indicate the content of certain substances, including dissolved salts, various chemical and organic compounds.

Putrefactive, fishy or earthy odor

These are most often encountered in water from open waters. Caused by content of natural organic substances in water, including most common – geosmin and 2-methylisoborneol. These compounds do not usually present a danger to humans, but at times can be caused by blue-green algae in water. Water is mostly strongly saturated with compounds during periods of algal bloom.

Removal: filters with activated carbon (adsorption), for drinking purposes – domestic reverse osmosis.

Chlorine odor

Mostly frequently encountered in tap water. Caused by excessive chlorination of water at municipal water treatment plants.

Removal: filters with activated carbon (adsorption), for drinking purposes – domestic reverse osmosis.

Rotten eggs odor

Content of dissolved hydrogen sulfide in water (H2S). Less frequently – content of sulfur bacteria that generate hydrogen sulfide. Most widespread in ground waters.

Removal: filters with Centaur filter media (activated carbon – catalytic oxidization and adsorption) and MGS (manganese green sand). Chlorination of water is necessary to remove this bacteria.

Chemical odor, odor of phenol

This type of odor is caused by leaking of domestic and industrial wastewaters and other waste products into open and underground waters.

Removal: elimination of the cause. In some cases, filters with activated carbon can be applied (adsorption).

Salty flavor

Caused by high concentration of salts in water: NaCl, NaSO4, MgSO4.

Removal: water desalination (deionization or reverse osmosis). For drinking purposes – domestic reverse osmosis.

Metallic flavor

Content of iron in water.

Removal: systems for iron reduction with Ecomix, Birm, MGS and other methods of iron reduction.

Alkaline flavor

Caused by high indicator of water alkalinity.

Removal: systems of reverse osmosis or deionization (H-cation exchange). For drinking purposes – domestic reverse osmosis.
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