机构地区: 华南师范大学化学与环境学院
出 处: 《中国给水排水》 2010年第3期72-75,共4页
摘 要: 考察了石油焦、石油焦制备的活性炭(AC)及其负载Ni所制备的Ni/AC催化臭氧氧化对氯苯甲酸(p-CBA)的效果。结果表明,石油焦的加入对臭氧氧化降解p-CBA的效果没有明显改善,但有利于臭氧对p-CBA的矿化;采用水洗预处理石油焦制备的活性炭对TOC的去除效果比采用酸洗预处理方法的要好;采用石油焦制备活性炭后负载Ni所得的Ni/AC催化剂催化臭氧氧化p-CBA(初始浓度为10mg/L),反应60min后,对p-CBA的去除率达100%,对TOC的去除率达60%。 The catalytic ozonation efficiencies of p-chlorobenzoic acid (p-CBA) by petroleum coke, activated carbon (AC) prepared by petroleum coke and Ni/AC catalyst were investigated. The resuits show that adding petroleum coke cannot significantly improve the degradation efficiency ofp-CBA by ozone, but can promote mineralization ofp-CBA by ozone. The removal of TOC by AC prepared by petroleum coke after water pretreatment is better than that by AC prepared by petroleum coke after acid pretreatment: When Ni/AC catalyst is applied for catalytic ozonation of p-CBA, and the initial p-CBA concentration is 10 mg/L, the removal rates of p-CBA and TOC are 100% and 60% respectively after 60 mill.
领 域: [环境科学与工程]