- Tytuł:
-
Znaczenie hydrodynamiki komór reakcji w procesie ozonowania wody
Role of hydrodynamic behaviour of contact columns in the ozonation process - Autorzy:
-
Olsińska, U.
Kuś, K. - Powiązania:
- https://bibliotekanauki.pl/articles/237664.pdf
- Data publikacji:
- 2001
- Wydawca:
- Polskie Zrzeszenie Inżynierów i Techników Sanitarnych
- Tematy:
-
dezynfekcja wody
ozonowanie wody
hydrodynamika
badania hydrauliczne
komory kontaktowe - Opis:
- The efficiency of the ozonation process is affected by the following major factors: gas-liquid dispersion (interfacial gas-liquid surface) and contact time, as well as some other parameters influencing the mass transfer rate and the kinetics of chemical and biochemical reactions. And this is why the intensity of mixing in the dissolution system becomes a key issue. Mixing intensity depends on the following operating parameters: volumetric liquid flow rate, volumetric gas flow rate and reactor geometry. The primary objective of the study reported in the present paper was to analyze the problem of how the said parameters influence the hydraulic behavior of the contact column. Tracer studies were carried out with a contact column in a co- and counter-current gas-to-water-flow system. It was found that the presence of the gas phase changed the behavior of the reaction column - basically due to the increase of mixing intensity. When the intensity of mixing increases and the quality of the oxidant dose cannot be changed, there will be a concomitant increase in the yield of the oxidation/disinfection reactions, which produce undesirable intermediates. This increase is paralleled by the shortening of both mean residence time and t10, which deteriorates the efficiency of disinfection. The results of the study evidence that the selection of the plug flow reactor is a prerequisite of an effective ozone use for microorganism inactivation.
- Źródło:
-
Ochrona Środowiska; 2001, 2; 15-20
1230-6169 - Pojawia się w:
- Ochrona Środowiska
- Dostawca treści:
- Biblioteka Nauki
Artykuł