Water and Active Substances

With the physical analysis of drinking and utility water, water; temperature, cloudiness, smell and color are investigated. Potable water should not be cloudy. It should have its own taste and odorless. The temperature of potable water should be below 15 ° C. It should be colorless and without residue. Materials such as phenol and oil that give bad odor and taste to water should not be found in water. TURBIDITY: Turbidity is seen in water that prevents the light transmission of water and contains suspended solids. Turbid waters should be considered as suspect waters. Because turbidity in the water indicates the possibility of contamination with waste and a health hazard. In addition, as turbidity is aesthetically important, it is not desired to be in water. It is recommended by the US Environmental Protection Agency (EPA) not to exceed 1 NTU and by the World Health Organization (WHO) not to exceed 5 NTU (turbidity units). COLOR: The color of the water is based on dissolved organic and inorganic substances or It arises from chemicals and dyes melted in industrial areas. Water in the potable water class should be colorless. In addition, it is an aesthetically undesirable parameter. It is recommended not to exceed 15 units by the US Environmental Protection Agency (EPA) and the World Health Organization (WHO) and 20 units by the Turkish Standards Institute (TSE). TEMPERATURE: The temperature of the water biologically affects the growth rate of microorganisms. As the temperature increases, the rate of reactions in water increases and the amount of dissolved oxygen in the water decreases. Although temperature determination is not desired in water used for industrial purposes, it is very important in drinking water. Water with a temperature value above 20 ° C in drinking water may be tasteless. The optimum temperature is around 10-12 ° C. ODOR: Drinking and utility water should be odorless. The odor problem in the water can be due to many factors. These; organic and inorganic substances, metals such as iron, manganese, chlorine, soap and detergent mixing, and dissolved gases.


Because the molecules in water are a strong solvent, it is very difficult to find them pure in nature.

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