Open AccessDetermination of chloroform level in drinking chlorinated tap water
Author(s) -
В. В. Зайцев,
N.I. Rublevska,
V.D. Rublevskyi
Publication year - 2019
Publication title -
êdine zdorov'â ta problemi harčuvannâ ukraïni
Language(s) - English
Resource type - Journals
eISSN - 2664-0694
pISSN - 2663-9726
DOI - 10.33273/2663-9726-2019-50-1-50-53
Subject(s) - chloroform , chlorine , permanganate , tap water , chemistry , environmental chemistry , population , water treatment , environmental engineering , environmental science , organic chemistry , demography , sociology
More than 80 % of the population of Ukraine is provided with drinking water by means of surface water intakes, for the disinfection of water, as a rule, liquefied chlorine is used. When this method of disinfection is applied due to the interaction of organic substances with chlorine, chlororganic compounds (COC) are formed, among which trigalomethanes prevail, and among the latter, 60–90 % of the content is chloroform. Since January 2015, the hygienic norm of chloroform in tap water has been in effect in Ukraine and the obligatory program of daily monitoring of the chloroform content during the chlorination of water has been justified. Therefore, it became necessary to search for chloroform chlorine form in chlorinated water that is labor-consuming and economically accessible for water pipes. The chloroform content depends on the value of the integral index of organic water contamination — permanganate oxidation. The higher the value of permanganate oxidability in drinking chlorinated water, the more reliable (p <0.05) the higher the chloroform content in it. The method of indirect determination of the chloroform level in chlorinated water using the permanganate oxidation level is simple, reliable and operative in comparison with the prototype in the absence of the possibility of determining the chemical composition of water, the ability to determine the level of chloroform at any point in the water distribution network, reduces the cost of research and, accordingly, water for the population.