Scientific journal
Название журнала на английском
ISSN 2500-0802
ПИ №ФС77-61154

DETERMINATION OF KINETIC PARAMETERS OF IRON OXIDATION REACTIONS OF GROUNDWATER WITH OZON AND OXYGEN FOR WATER TREATMENT TECHNOLOGIES

Urmazova T.A. 1 Shiyan L.N. 1 Machekhina K.I. 1
1 National Research Tomsk Polytechnic University
The paper reports on the results of studies of the chemical composition of Tomsk region groundwater. It was found that the majority of groundwater of Tomsk region contains manganese, silicon, organic substances and iron. The iron concentration was varied in the range 1.5…12.9 mg/L and it is higher than the MPC according SanPin 2.1.4.1074-01. It was determined the rates of iron oxidation by atmospheric oxygen at 9 ° C and at 20 ° C, which amounted 2∙10–8 mol/ L∙s and 1∙10–8 mol/L∙s, respectively, and by ozone at the same temperatures, which amounted 8,2∙10–7 mol/L∙s and 4.4∙10–7 mol/L s∙, respectively. Established differences demonstrates the feasibility of using ozone as compared with oxygen that also supported by the calculated values of the activation energy. It is 56,1 kJ/mol for oxygen in the air and 28,8 kJ/mol for ozone. It was investigated the influence of ozone on bacteria present in sewage village Kislovka. It was determined the time which is required for wastewater disinfection with ozone. It is 12 minutes.