摘要
为评估制造业对纳污水体有机物的污染影响,了解污染河道中有机物的种类、含量及赋存特性,采用极性和非极性逐步分离的方法对广东佛山市顺德区容桂街道内河涌沉积物中的有机物进行了综合的物理图谱解析研究.结果表明,污染沉积物中共检出包括烷烃类、烯烃类、多环芳烃、苯系物、杂环类、邻苯二甲酸酯类、醛酮、极性化合物、含硅物质以及烷酸酯类等10大类有机污染物共171种.按检出污染物种类的数量分析,烷烃类>极性化合物>多环芳烃>醛酮类>杂环>苯系物、邻苯二甲酸酯类>烷酸酯类>含硅物质>烯烃.按照有机物相对丰度分析,烷烃类>极性化合物>烷酸酯类>烯烃类>多环芳烃>邻苯二甲酸酯类>含硅物质>醛酮>杂环类>苯系物.在相对含量最高的烷烃类有机污染物中,十九烷在同类物质中占比高达14.83%.毒害性持久性有机污染物多环芳烃的总有机物占比为2.33%,检测中还发现大量有机醇、酚等和涂料工业,邻苯二甲酸酯类等塑料工业以及和电子工业产业相关的有机硅类等物质.和同类研究相比,该区域检出51种、占总有机物55.5%丰度的烷烃类物质种类更丰富,含量更高.本研究对制造业纳污河涌沉积物的有机污染物分析研究,为同质污染河涌的污染治理提供参考.
In order to investigate the contamination status of organic pollutants in a river of a typical electrical equipment industrial area, Ronggui, Foshan, the sediments were sampled for the composition, concentration and occurrence analysis of organic pollutants. The polar and non-polar fractionation methods were employed for the fingerprint establishment of organic pollutants. One hundred and seventy-one of organic chemicals including ten categories of alkanes, alkenes, polycyclic aromatic hydrocarbons, benzene, heterocyclic compounds, phthalate esters, aldehydes, ketones, polar compounds, sillcon-containing material as well as alkyl esters were examined. The number of different categories of the detected organic pollutants in a descending order was ： alkanes 〉 polar compounds 〉 polycyclic aromatic hydrocarbons 〉 aldehydes and ketones 〉 heterocyclic compounds 〉 benzene homologues, phthalate ester 〉 alkyl esters 〉 silicon material 〉 olefins. The abundance of detected organic pollutants in a descending order was： alkanes 〉 polar compounds 〉 alkyl esters 〉 olefins 〉 polycyclic aromatic hydrocarbons 〉 phthalates 〉 silicon material 〉 aldehydes and ketones 〉 heterocyclic compounds 〉 benzene homologues. Among the 51 kinds of alkanes detected, nonadecane accounted for 14.83%, and the persistent organic pollutants accounted for 2.33% of the total organic matter. Compared to similar studies, there were 51 kinds of alkanes and they accounted for 55.5% of the total organic chemicals, showing high diversity and abundance. In addition, some electronics industry-related organic pollutants such as silicone materials were also detected in high frequency.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2013年第3期1142-1149,共8页
Environmental Science
基金
广东省中国科学院全面战略合作项目(2010B09031048)
广东省自然科学基金研究团队项目(9351007002000001)
佛山市院市合作项目(2010YS023)
佛山市顺德区容桂街道科技计划项目
广东省自然科学基金项目(S2011040000770)
