Modeling ozonation as pre-treatment step for the biological batch degradation of industrial wastewater containing 3-methyl-pyridine.

被引:11
作者
Carini, D [1 ]
von Gunten, U
Dunn, IJ
Morbidelli, M
机构
[1] ETH Zentrum, Swiss Fed Inst Technol, CH-8092 Zurich, Switzerland
[2] Swiss Fed Inst Environm Sci & Technol, EAWAG, CH-8600 Dubendorf, Switzerland
关键词
ozone; 3-methylpyridine; modeling; bubble-column; industrial wastewater;
D O I
10.1080/01919510108962019
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A heteroaromatic substance, 3-methylpyridine, as model pollutant, was degraded by ozonation bubble-column. This was the first step of a sequencing batch biofilm. reactor process (SBBR). The modeling of this batch ozonation was developed in different steps. The model included hydraulics of the reactor, chemical kinetics and effects of gas-liquid transfer processes. The crucial and most sensitive part of the model was the observed fast consumption of ozone during gas-liquid transfer reactions. Without including these processes into the model, it was impossible to explain the experimental observations. The ozone consuming processes in the gas-liquid film are not totally understood at present.
引用
收藏
页码:359 / 368
页数:10
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