摘要
本文用减秩因子分析法(ＲＡＦＡ)处理电解催化降解苯胺过程中的动力学谱－光谱组成的两维数据．分析结果表明,当以反应速率常数为优化对象,以消去反应物的信息作为减秩手段时,ＲＡＦＡ可以获得两个最优解,分别对应于两步速率常数(分别为０．０４３７和和０．０１７５ｍｉｎ－１)．在获得动力学参数的前提下,利用最小二乘回归法可解出包括中间体在内的各组分的吸收光谱．结果还发现苯胺降解过程中有一种表观中间体存在,降解过程符合两步一级反应模型．
In this paper, rank annihilation facor analysis (RAFA) has been employed to analysis the process of electrolysis catalytic degradation for aniline wastewater. The results shows that when the rate constant is taken as the optimizing target and the expurgation information of the reactant as the rank annihilation measure, two optimal solutions can be obtained through RAFA, which correspond the two-step rate constants (k1 = 0.0437min-1, k2 = 0.0175mm-1). On the premise that the dynamic parameters has been obtained, the adsorption spectrum of every component including the intermediate can been obtained through least-squares algorithm. At the same time, the results also shows that there is one apparent intermediate has been produced, the degradation process is in ac-cordance with two-step first-order model.
出处
《环境化学》
CAS
CSCD
北大核心
2001年第3期255-260,共6页
Environmental Chemistry
