紫外光/过氧化氢(UV/H2O2)技术是近年来在环保领域发展起来的一项高级氧化工艺。该技术利用紫外光激发解离H2O2产生强氧化性·OH自由基氧化降解污染物。UV/H2O2技术具有工艺流程简单、氧化效率高、H2O2利用率高以及无二次污染等优势,显示出良好的发展潜力和应用前景。对近几年来UV/H2O2在多个行业(印染纺织、医药制药、城市水处理、化工合成以及烟气净化领域)的研究进展进行了详细的介绍。还对目前该技术存在的问题以及发展方向作了简单的展望。
UV/H2O2 degradation of pollutants in environmental protection is a newly developed advanced oxidation process (AOP) in recent years. The technology uses strong oxidizing o OH radical produced by ultraviolet dissociating H2O2 to degrade pollutants. UV/H2O2 technology displays a big potential because of its advantages such as simple process, efficient oxidation, high utilization of H2O2 and no secondary pollution. This paper summarizes some new progress in research and development about UV/H2O2 in several industries (printing and dyeing textile, medicinal and pharmaceutical, chemical synthesis, urban water disposal and flue gas purification). At last, the present problems and the prospect of the UV/H2O2 technology are simply put forward.