摘要
研究了乌鲁木齐某含油废水污灌区不同土地类型(林地、葵花地、玉米地、荒地)0~100cm的土壤中正构烷烃的分布特征和来源。结果表明,表层(0~20cm)土壤中正构烷烃质量浓度为4.30~8.43mg/kg,呈现林地>玉米地>荒地>葵花地的特点,与国内外其他地区相比受到中等程度的污染。土壤中正构烷烃含量随深度增加整体呈递减趋势。不同土地类型不同土层中正构烷烃种类相似,但不同深度土壤中不同碳原子数的正构烷烃质量分数差异显著(P<0.05)。研究区土壤中正构烷烃来源为混合源,包括化石燃料不完全燃烧和木本植物的释放。
Distribution characteristics and sources of n-alkanes in 0 -100 cm soils of Urumqi oil-bearing waterwater irrigation area were studied,considering different landuse types (forest land,sunflower land,corn field and wasteland). Results showed that the mass concentration of n-alkanes in topsoil (0-20 cm) was 4.30 to 8.43 mg/kg ,which was moderately polluted compared with other regions at home and abroad. The distribution characteristics in different landuse types were forest land>corn land>wasteland>sunflower land. The content of n-alkane decreased with the depth. The kinds of the n-alkanes in different depths of soil with different landuse types were similar,but the components’ mass fraction were significantly different ( P <0.05). The source turned out to be mixed source,including incomplete combustion of the fossil fuel and woody plants release.
作者
吴启豪
马晓利
陈平
WU Qihao;MA Xiaoli;CHEN Ping(College of Chemistry & Chemical Engineering,Xinjiang Normal University,Urumqi Xinjiang 830054;Electrochemical Technology and Applied Engineering Research Center,Xinjiang Normal University,Urumqi Xinjiang 830054)
出处
《环境污染与防治》
CAS
CSCD
北大核心
2019年第7期831-836,843,共7页
Environmental Pollution & Control
基金
国家自然科学基金地区科学基金资助项目(No.21763025)
新疆师范大学电化学技术与应用工程研究中心项目(No.XJNUGCZX122017B04)
关键词
污灌
正构烷烃
分布特征
来源解析
wastewater irrigation
n-alkanes
distribution characteristics
source analysis
作者简介
第一作者:吴启豪,男,1994年生,硕士研究生,主要从事土壤污染防控研究;通讯作者:马晓利.
