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Fenton试剂处理腐殖酸废水影响特性和降解动力学模型

Keywords: 腐殖酸,Fenton,氧化,混凝,动力学模型

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Abstract:

研究了Fenton试剂降解腐殖酸废水的影响特性,并在理论分析反应过程的基础上建立动力学方程,同时根据实验进行动力学方程参数估算。研究表明,Fenton试剂通过氧化和混凝共同作用有效去除腐殖酸。在初始pH=4,40mmol/LFeSO4和160mmol/LH2O2投量下,腐殖酸60min氧化去除率、混凝去除率分别达到78.6%和11.5%,其初始氧化速率达到最大59.6mg/(L·min)。腐殖酸的氧化降解动力学模型值与实验值吻合良好,说明采用该动力学模型能较好预测腐殖酸废水的氧化降解情况,且Fenton氧化降解腐殖酸的机理符合自由基的理论和实践。

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