What can a microscopic image of water show
29.7.2016
Microscopic image is one of the pointers of a drinkable water quality. It can show abioseston, organism count and living...
Polychlorinated biphenyls (PCB)
22.7.2016
Polychlorinated biphenyls (PCB) is a group of substances which comprises more than 200...
Chemical use of oxygen (CHUO)
Chemical use of oxygen (CHUO) means a use of oxygen needed for all substances’ oxidation. Not only those which can be biologically...
Sulfates in the water
21.7.2016
Sulfates(SO42+) are salts of a sulfuric acid in which sulfate anion (SO42−) and a cation – mostly of metal, ocassionaly amonium...
Amonnium ions and their removal from water
20.7.2016
The occurrence of ammonium ions in drinkable water can point to a microbiological activity. The cause can be fertilizing or geological...
Arsenic in the water and its removal
Arsenic (AS) is a well known toxic metalloid. It can appear in organic or anorganic...
Removal of chlorine and chlorides from water
Remmoval of chlorine and chlorides right before its consumption is very appropriate. Chlorine has been added to water for ages to...