Category: Uncategorized
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Air
Air : the mixture of invisible odorless tasteless gases (such as nitrogen and oxygen) that surrounds the earth.
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Water tests
There are some tests had to be made for making sure that the water is 100% pure. 1. Physical test. • Test : boiling water . • Positive result : boils at 100 degree. • Negative result : boils at more 100 degree Chemical test : 1. Anhydrous copper II sulfate turns from white to blue when water is added (exothermic). …
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Water treatment process
▪ Water treatment process Water is taken from reservoirs or any other source to the water treatment plant Filtration: ▪ Water containing solids is passed through filters of sand and gravel which removes insoluble particles. Larger insoluble particles are trapped on the filter. The smaller water molecules and other dissolved molecules pass through the filter. Chlorination: ▪ Water…
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Water treatment
Water treatment is any process that improves the quality of water to make it appropriate for a specific end-use. The end use may be drinking, industrial water supply, irrigation, river flow maintenance, water recreation or many other uses, including being safely returned to the environment. Water treatment removes contaminants and undesirable components, or reduces their…
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Water shortage
As a result, some 1.1 billion people worldwide lack access to water,2.7 billion people rarely find water for at least one month of the year. 2.4 billion people, children are facing diseases, such as cholera and typhoid fever. children, die each year from diarrheal diseases alone. The consuming of water availability in soils causes major…
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We use water in our daily life constantly , such as using it in cooking , washing and cleaning .
According to the United States Geological Survey (USGS), industrial water is used for fabricating, processing, washing, diluting, cooling, or transporting a product. Water is also used by smelting facilities, petroleum refineries, and industries producing chemical products, food, and paper products.
Air and Water 