Contaminants in the water. Water is a good solvent for the treasure and can dissolve various additives, many
.From the picture, the water cycle can explain the source of the contamination of substances in water, the source of contamination is a big source of nature itself
.The contamination from human action. Contaminants found in natural water and water (various), including inorganic and organic ละลายน้ำ, suspended particles microbes. Gas and water soluble
.- inorganic water soluble include minerals such as calcium, magnesium, sodium silicate minerals. These from the sand under the water. Also, iron sulfate, nitrate from fertilizer, copper.In hard water will find the amount of calcium. And magnesium ions as well. Which these compounds can be captured. Carbonate ion is the stain with sediment in the water!- organic water soluble include humic acid (Humic acid) tannin (Tannin) coming from the digestion time according to the nature of plant oil detergent. Coming from the industry Fair And the insecticides and pest of agriculture,
-
, the suspended particles- microorganisms, including bacteria, viruses, fungi and algae, which measurement of bacteria in the water. From the number of colonies of bacteria per water volume 1 ml (colony / ml: CFU / ml.), and can reduce the amount of contamination. Bacteria in the water by adding chlorine. Down during the process of water treatment
.Water soluble gas such as nitrogen, oxygen, carbon dioxide, etc., for example, the source of the contamination of the gas dissolved with water. Such as acid rain, usually the pH of rainwater in the 5-6.Because the gas in various dissolved air with rain. If it detects pH of rainfall was less than 4 that result from the sulfuric acid. In dissolved air with rainwater was born as acid rain.
.
การแปล กรุณารอสักครู่..