脉冲电晕放电法低温等离子体净化室内VOCs

Purification of Volatile Organic Compounds by Pulsed Corona Discharge Nonthermal Plasma

室内挥发性有机物(VOCs)对居民健康有严重危害。用低温等离子体技术降解室内VOCs是空气净化领域近几年兴起的一种的新技术。本文首先简单介绍了VOCs的主要来源和对人体的危害,然后介绍了脉冲电晕放电低温等离子体分解VOCs的原理,提出了两种VOCs分解的模型。依据模型分析了处理过程的影响因素。分析了低温等离子体净化VOCs的现状和存在的问题,指出了以后的发展方向及在实际生活中的应用。最后提出这是一项有广阔应用前景但还待进一步发展完善的技术。

Indoor Volatile Organic Compounds (VOCs) are harmful to residents health. Nonthermal plasma discharge process can be used to decompound indoor VOCs.Several primary sources of VOCs and their disserve were introduced simply. The mechanism with which pulse corona nonthermal plasma decompounds VOCs was described.Two models for VOCs decompounding were presented.Influencing factors of decomposition process were analyzed with the models. Based on the application situation and existing problems of nonthermal plasma in purifying VOCs,development direction of this technology in the future and applications in daily life were pointed. It was concluded that although this technology has a wide application foreground, it still needs more improvement.