氨气改性活性炭催化臭氧化降解垃圾渗滤液中提取的富里酸  

Degradation of Fulvic Acid Extracted from Landfill Leachate by Catalytic Ozonation with Ammonia- modified Activated Carbon

作　　者：秦航道 陈洪林[2] 李臣芝 杨郭[2] 史常立[2] 

机构地区：[1]铜仁学院材料与化学工程学院,贵州铜仁554300 [2]中国科学院成都有机化学研究所,成都610041 [3]湖南省食品质量监督检验研究院,长沙410027

出　　处：《四川环境》2016年第1期12-16,共5页Sichuan Environment

基　　金：铜仁学院博士启动基金(trxy DH1514)

摘　　要：富里酸(FA,fulvic acids)是反渗透浓液中的主要污染物,而催化臭氧化是一种有效的处理方法。采用不同温度下氨气改性后的AC作为催化剂,对提取的FA进行臭氧化降解,氨气改性提高了AC催化活性,且ACN650催化活性最高,与未改性的ACA相比,FA的去除率提高了4%,TOC去除率从4.4%提高到了20.1%。此外,采用改性后的ACN650作为载体制备的Ce/ACN650催化剂时,FA溶液的TOC去除率达到了45.2%。Fulvic acid is the major contaminant in the reverse osmosis concentrate, while catalytic ozonation is an effective treatment method. In this study, FA were extracted and degraded by catalytic ozonation using ammonia - modified activated carbon as catalysts. The results indicated that amination improved the catalytic performance of AC and ACN650 showed the best performance. Compared to unmodified ACA, FA removal improved 4%, and TOC removal rate increased from 4.4% to 20. 1% in the presence of ACN650 catalyst. Moreover, TOC removal rate reached 45.2% in the Ce/ACN650 catalyst which was prepared using ammonia- modified ACN650 as carrier.

关 键 词：垃圾渗滤液 催化臭氧化 腐殖质 富里酸 

分 类 号：X703[环境科学与工程—环境工程]