Chan K H, Chu W
Department of Civil and Structural Engineering, Research Centre for Urban Environmental Technology and Management, The Hong Kong Polytechnic University, Hunghom, Kowloon, Hong Kong.
Water Res. 2003 Sep;37(16):3997-4003. doi: 10.1016/S0043-1354(03)00316-6.
A design method for the removal of atrazine (ATZ) by catalytic oxidation process (COP) was developed though examination of the reaction kinetics in various conditions. The reaction kinetics of ATZ decay in COP are found to consist of a reaction and a stagnant stage, while two characteristic constants, the initial decay rate and the oxidative capacity of the COP, are successfully derived and used to describe the two stages, respectively. The proposed model and the way to solve the two characteristic constants (the initial decay rate and the oxidative capacity) are capable of describing the ATZ degradation precisely in COP at different Fe(II) concentrations and [Fe(II)]/[H(2)O(2)] ratios, where the marginal [Fe(II)]/[ATZ] ratio at 10 is found to be the critical point to achieve a cost-effective treatment of ATZ by COP. A series of equations for practical completely mixed batch reactor design is also developed based on the two characteristic constants.
通过考察不同条件下的反应动力学，开发了一种利用催化氧化法（COP）去除阿特拉津（ATZ）的设计方法。发现COP中ATZ降解的反应动力学由一个反应阶段和一个停滞阶段组成，同时成功推导得出两个特征常数，即初始降解速率和COP的氧化能力，分别用于描述这两个阶段。所提出的模型以及求解这两个特征常数（初始降解速率和氧化能力）的方法能够精确描述不同Fe(II)浓度和[Fe(II)]/[H₂O₂]比值下COP中ATZ的降解情况，其中发现[Fe(II)]/[ATZ]比值为10时的临界值是通过COP实现ATZ经济有效处理的关键点。还基于这两个特征常数开发了一系列用于实际全混流间歇式反应器设计的方程。
