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首页> 外文期刊>Separation and Purification Technology >Ultrasonic degradation of methyl Parathion in aqueous solutions: Intensification using additives and scale up aspects
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Ultrasonic degradation of methyl Parathion in aqueous solutions: Intensification using additives and scale up aspects

机译：超声降解水溶液中的甲基对硫磷：使用添加剂强化并扩大规模

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Methyl Parathion (mP) is an organophosphorous pesticide and poses serious threats to the environment including its effect on the humans. The present work deals with degradation of mP using low frequency acoustic cavitational reactors (ultrasonic horn and ultrasonic bath). Effects of presence of TiO2, CCl4 and H2O2 as additives for intensifying the sonodegradation of mP have been investigated. Combination of ultrasound generated cavitation with Fenton type chemistry and photocatalysis has also been investigated to check whether the combination of two techniques with similar mechanisms yield synergistic effects. A mathematical model has also been fitted to estimate the rate constant for pollutant removal under different operating conditions. Additives were found to enhance the sonodegradation of mP significantly due to the generation of additional oxidizing species in the reactor. The present work has clearly illustrated that sonochemical reactors in combination with intensifying agents or combination with other oxidation processes can be effectively applied for the degradation of pesticides.
机译：甲基对硫磷（mP）是一种有机磷农药，对环境构成严重威胁，包括对人类的影响。目前的工作涉及使用低频声空反应器（超声波喇叭和超声浴）降解mP。研究了TiO2，CCl4和H2O2作为添加剂对增强mP阳极氧化作用的影响。还研究了将超声产生的空化与Fenton型化学方法和光催化方法结合使用，以检查具有相似机理的两种技术的组合是否产生协同效果。还已经建立了数学模型，以估计在不同操作条件下去除污染物的速率常数。由于在反应器中产生额外的氧化物质，发现添加剂显着增强了mP的阳极氧化。本工作清楚地表明，与增强剂结合或与其他氧化过程结合的声化学反应器可以有效地用于农药的降解。

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