摘要
采用气相色谱质谱联合(GC-MS)技术,对O3氧化法处理前后晚期垃圾渗滤液中的有机污染物种类及去除效率等进行分析,考察O3氧化法去除晚期渗滤液有机污染物的特性。研究结果表明:采用O3氧化20 min后,COD去除率为73.2%,BOD5去除率为38.7%,可生化性由0.12上升到0.61,有机污染物种类由66减少到48种,烯烃类、烷烃类及其他难降解有机物去除率为50%以上,氧化出水羧酸类与醇类有机物量有所增加,在氧化过程中有部分非酰胺类有机物转化成酰胺类有机物;采用O3氧化法处理晚期垃圾渗滤液,不仅能明显去除其中有机污染物,而且能提高其可生化性,可以考虑作为晚期垃圾渗滤液的预处理技术。
In order to explore organic pollutant characteristics of aged landfill leachate with O3 oxidation the types and removal rates of organic pollutants in leachate were analyzed by gas chromatograph-mass spectrometer （GC-MS） before and after O3 treatment. The results show that when the leachate is oxidized for 20 min, the removal rates of COD and BOD5 are 73.2% and 38.7%,respectively, the biodegradability increases from 0.12 to 0.61,the types of organic pollutants decrease from 66 to 48, the removal rates of alkenes, alkanes and other refractory organics are all above 50%,the amount of carboxylic acids and alcohols increases, and some non-amides transform into amides.O3 oxidation can be applied as one of the pretreatment processes of aged landfill leachate to remove the organic pollutants and improve the leachate biodegradability.
出处
《中南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2013年第2期843-846,共4页
Journal of Central South University:Science and Technology
基金
国家水体污染控制与治理科技重大专项(2008ZX07315-003-02)
第四十四批中国博士后基金资助项目(20080440704)
关键词
O3氧化法
晚期垃圾渗滤液
有机污染物
可生化性
预处理技术
O3 oxidation method
aged landfill leachate
organic pollutants
biodegradability
pretreatment process
