响应面法优化阴阳极同时作用电化学法处理染料废水

在自制电化学反应器中,以甲基橙模拟染料废水为处理对象,采用Box-Behnken Design响应面法研究了影响阴阳极同时作用电化学法处理染料废水的因素及其交互作用。实验得出各因素对废水脱色率影响的大小顺序为：电流密度> Fe³⁺浓度>Cl^-浓度。各因素之间的交互作用对废水脱色率影响的大小顺序为：电流密度和Fe³⁺浓度>电流密度和Cl^-浓度>Fe³⁺浓度和Cl^-浓度。优化结果表明：Fe³⁺浓度为1.02 mmol/L、Cl^-浓度为10.96 mmol/L、电流密度为11.52 mA/cm²时,最佳脱色率为94.67%。阴阳极同时作用电化学法对甲基橙去除效果显著。

Adsorption Properties of New Adsorbent AGS for Oil Vapor

The oil vapor adsorption properties of the self-made new-type adsorbent AGS were studied and compared with popular activated carbon.The experimental results show that:The adsorbent AGS is a typical meso-porous material and its adsorption capacity to N2 under a higher nitrogen partial pressure is close to that of activated carbon;After many times of adsorption-desorption,the static and dynamic adsorption capacities of AGS are changed little,while those of activated carbon are reduced evidently;The adsorbing speed of AGS to oil vapor is lower than that of activated carbon;When water vapor is adsorbed on the adsorbent,the static adsorption capacities of AGS and activated carbon to oil vapor are both reduced,and the dynamic adsorption capacity of AGS is greater than that of activated carbon.