Natural water
Natural water constitutes the general name of various forms of water phase on the earth's surface in nature. Including rivers, oceans, glaciers, lakes, swamps and other surface water, as well as soil, rock groundwater and other natural water bodies.
Natural water has strict requirements for water sources. According to the definition of International Bottled Water Association (IBWA), natural water refers to bottled surface water or underground spring water, mineral water and artesian well water that need to be treated at least, and it is not led out from the municipal system or public water supply system, and remains unchanged except for limited treatment (such as filtration, ozone or equivalent treatment). It not only removes a very small amount of impurities and harmful substances in raw water, but also retains nutrients, minerals and trace elements beneficial to human body. Healthy water is to remove harmful substances and retain beneficial mineral elements. Natural water retains the essential mineral elements in raw water, which is conducive to maintaining the natural ecological structure of water, making it in ionic state and easy to be absorbed by human body.
Natural water is weakly alkaline water, which is "healthy water" to meet the needs of human nutrition and physiological functions. It is said that there are high-quality natural water sources in Bama, Guangxi: Bama's water belongs to alkaline ionized water, with a PH value of 7.38~7.95 and a low oxidation-reduction potential (ORP) of 35 ~150mv, which contains minerals and trace elements beneficial to human body. Especially, the geomagnetic intensity in Bama area is between 0.45 and 0.5 gauss, which is much higher than other areas. Under the action of magnetic wire cutting, macromolecular water is magnetized into six-ring small molecular water.
Composition and composition
Natural water is a solution with very complicated chemical composition, including soluble substances (such as salts, soluble organic substances and soluble gases) and colloidal substances (such as silica gel, humic acid and clay mineral colloidal substances). ) and suspended solids (such as clay, aquatic organisms, sediments, bacteria, algae, etc.). ).
Overview: The salt content of surface water is relatively low, but it is easily polluted; Groundwater is relatively clean, but there are many dissolved minerals. Impurities in water are mainly divided into suspended solids, colloids and soluble substances. If used as drinking water, some natural water can be drunk after simple treatment. Such as some springs and wells. Some of them must be treated by special equipment and treatment technology before drinking, such as river water, lake water and brackish water.