Hydrogen sulfide:
A characteristic sign of increased hydrogen sulfide in water is the unpleasant smell of rotten eggs. This pollutant is only characteristic of oxygen-poor well waters, since it rapidly oxidizes in air.
Despite the fact that it does not show high toxicity to the human body, drinking such water is at least not pleasant. From the consequences of prolonged drinking of such water, one can observe irritation of the walls of the stomach, flatulence and other diseases of the gastrointestinal tract.
Microorganisms in water:
The total microbial number quantitatively characterizes the presence of microorganisms in water; for drinking water, this is the number of colonies of aerobic and anaerobic bacteria in 1 ml of water. It is determined by introducing a water sample into the culture medium and growing the colonies for a certain time – from 3 days to a week. The acceptable indicator for drinking water is 100 bacteria in 1 ml of water.
One of the most dangerous pollutants is E. coli. Its presence indicates fecal contamination of water and is unacceptable for drinking sources. The result of drinking such water can be acute diarrhea, which is especially dangerous for young children.
How to determine the hardness of water at home?
- The taste of very hard water has a characteristic bitter taste. But to feel it in water with medium hardness indicators, especially for a person who is used to drinking such water, is quite difficult. But soft water with low salinity will seem fresh.
- To accurately determine stiffness, you can submit it for analysis to a specialized laboratory . This step is mandatory if you intend to install filters or use water in the beverage and food industries.
- The second option is a home-based semi-quantitative determination of stiffness using test strips, which can be bought in specialized stores for water treatment or aquarium.
- The third option is quite entertaining and will be especially interesting for young experimenters – this is a soap method for which you will need a simple laundry soap.
Can I drink hard water?
- Calcium and magnesium are important trace elements. They play a role in the work of the cardiovascular and urinary systems, are involved in the formation of enzymes and bone tissue. There is probably no organ in the human body in the work of which these chemical elements do not take part. A water softener plant is required to treat hard water .
- It is worth paying attention that the lack and excess of hardness salts is equally dangerous. If the water is low mineralized, then the body compensates for the lack of food, but if it has increased rigidity, then with prolonged drinking of such water, the urinary system is overloaded and, as a result, the formation of kidney stones. Hypertension and edema are also an ensuing consequence.
- Of aesthetic problems, it is worth paying attention to the effect of hard water on hair and skin.
- If you observe dryness and hardness of the hair, a dull shade – this is often the reason for washing with highly mineralized water. This problem can be solved using special chelating shampoos or filtered water.
- When using hard water for washing, there is a comedogenic effect due to clogging of pores with insoluble salts of calcium and magnesium ions with components of sebum.
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