The work objective is to study issues of determining the hydrogen peroxide concentration. The task is to evaluate metrological aspects of the hydrogen peroxide decomposition. Alongside with a standard permanganatometric (analytical) method of determin-ing the hydrogen peroxide concentration, a fairly new technique of the acoustic emission is considered. A new methodology of the problem solution developed by the authors is presented. The study has found that the hydrogen peroxide catalytic decomposi-tion reaction is characterized by a strongly marked transient process at the initial stage. Further, the total number of pulses uniformly increases, and then the hydrogen peroxide concentration gradually decreases. The proposed method of monitoring the acoustic emission parameters shows high informativity and sensi-tivity. It is found that the spread in the experimental values obtained by the two methods is identical – 5 - 6% of the measured value.
catalytic treatment, hydrogen peroxide, catalyst, de-composition of hydrogen peroxide, permanganatometric method, method of acoustic emission.
В настоящее время чрезвычайно актуальной задачей является снижение концентрации вредных веществ в сточных водах [1, 2]. Одним из наиболее эффективных методов признана каталитическая очистка. Реакции каталитического окисления органических соединений практически необратимы и при наличии подходящих катализа-торов позволяют преобразовать токсичные вещества в безвредные продукты: углекислый газ и воду. В качестве окис-лителя используют кислород, озон, пероксид водорода. Растворимость озона и кислорода в воде ограничена. Для ее увеличения применяют повышенное давление, и процесс проводят в автоклавах. Озон является более сильным окис-лителем, чем кислород. Однако широкому применению озона препятствует его химическая нестойкость.
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