Impurities Present in Water : Chemistry
Er. Akanksha Pandey
In this we are going to see the physical and chemical impurities present in water.
(i)Colour: Yellowish thing indicates the prsence of chromium and appericiable amount of organic matter. Yellowish red colour indicates the presence of iron,while red brown colour indicates the presence of peaty matter.
(ii) Turbidity: It is due to the colloidal ,extermely fine suspension such as clay, slit,finely divided matters(organic and inorganic) micro organisms like plankton etc.
(iii)Taste: It is due to the prsence of dissloved mineral in water produces taste, but not odour.
Bitter taste can be due to the prsence of iron, alumminium, maganese, sulphate or excess of lime.
Soapy taste can be due to the presence of large amount of sodium bi carbonate.
Brackish taste is due to the presence of unusual amount of salts.
Polatable Taste is due to the presence of dissolved gases and minerals like nitrates in water.
(iv) Odour: It is in water due to undesirable for domestic as well as industrial purposes.
Chemical impurities in water:
(i) Acidity: It is not any specific pollutant and it simply determines the power to neutralise hydroxyl ions and is, usually expressed in terms of ppm( or mg/L) of calcium carbonate equivalent.
Surface waters and ground waters attain acidity from industrial wastes like acid, mine, drainage, pickling liquors etc.
(ii) Gases: All natural waters contain dissolved atmosphere Co2. Its solubility depends upon temperature, pressure and dissolved mineral content of water.
On the other hand dissolved oxygen in water is essential to the life of acquatic organisms such as fishes.
Polluted waters and sewages contains nitrogen in the form of nitrogeneous organic compounds and urea, which are partially converted in to NH3.
Did you like this resource? Share it with your friends and show your love!
Responses to "Impurities Present in Water : Chemistry"
No responses found. Be the first to respond...
Notify me by email when others post comments to this article.
Do not include your name, "with regards" etc in the comment. Write detailed comment, relevant to the topic.
No HTML formatting and links to other web sites are allowed.
This is a strictly moderated site. Absolutely no spam allowed.
to fill automatically.
(Will not be published, but
to validate comment)
Type the numbers and letters shown on the left.
Subscribe to Email
Get Jobs by Email
Forum posts by Email
Articles by Email
Awards & Gifts
Last 7 Days
Dr. Apurva Tamhane
Hafeezur Rahman P
Arju S Moon
Suresh Kumar R
N K Ravishankara
ISC Technologies, Kochi - India. © All Rights Reserved.