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低温等离子体降解甲苯影响因素分析

Keywords: 低温等离子体,一次回归正交,因素影响趋势实验,甲苯降解率

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Abstract:

采用变频低温等离子体技术对甲苯进行降解,考察了场强、频率、停留时间和初始质量浓度对甲苯降解率的影响.通过一次回归正交设计,建立了多元线性回归模型,得出了各因素与降解率之间的定量规律,确定了实验范围内的最优方案,并进行因素影响趋势实验对理论结果进行验证.结果表明,在最优方案条件下降解率理论最高值可达到86.64%.在实验范围内,各因素与降解率呈线性相关关系.而在电场参数(场强、频率)的上水平附近,降解率呈现出由线性转为非线性的趋势.

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