Kinetic Study of the Ozonation of Some Industrial Wastewaters
作者:
F.J. Beltrán,
J.M. Encinar,
J.F. García-Araya,
M.A. Alonso,
期刊:
Ozone: Science & Engineering
(Taylor Available online 1992)
卷期:
Volume 14,
issue 4
页码: 303-327
ISSN:0191-9512
年代: 1992
DOI:10.1080/01919519208552275
出版商: Taylor & Francis Group
关键词: Ozone;Industrial Wastewater Treatment;Distillery Wastewater Ozonation;Tomato Wastewater Ozonation;Water Treatment;Ozonation Kinetics;Ozone Absorption Kinetics;COD Monitoring;Film Theory
数据来源: Taylor
摘要:
Kinetic studies of the ozonation of two wastewaters released by distillery and tomato processing plants have been carried out. Once it has been assumed that an irreversible gas-liquid reaction is developed between ozone and the matter present in the water, the film theory concept was applied to this system for kinetic determinations. The evolution of the organic and inorganic matter with ozonation time has been followed by the chemical oxygen demand. The procedure allows the determination of the rate coefficients of ozone with the wastewaters treated. According to the results obtained, ozone is consumed through fast reactions which take place near the water-gas interface during an initial period. This period is used to determine the rate coefficients. Then, at more advanced ozonation times, the reactions become slower and hence they take place in the bulk of the water, articularly for the case of tomato wastewaters. Values of the rate coefficient allow us to establish both the kinetic regime of absorption and to compare the reactivity of ozone with the wastewaters and single compounds.
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