文档介绍：Quick Assessment of Contamination Threat to
Groundwater After NAPL Spill
Yulan Liu, Lirong Cheng*, Aizhong Ding, Jiuliang Xu
Key Laboratory of Water and Sediment Sciences, Ministry Unit 65044 of Chinese People's Liberation Army
of Education, College of Water Sciences Dalian, 116023, China
Beijing Normal University, Beijing, 100875, China
Abstract—Environmental accidents occur frequently in China migrating with the ambient groundwater flow. The NAPLs
in recent years. A quick estimation of the extent and may also e adsorbed to the soil or sediment particles,
distribution of contamination after environmental accidents is volatilized into pore spaces, or undergo biological or
important for immediate treatment of the contaminated sites. chemical degradation [3]. The processes are illustrated in the
This paper proposed a methodology to estimate the velocity concept model shown in .
and maximum infiltration depth of NAPL after spill accidents
to provide quick and quantitative information for the Once NAPL gets into the saturated zone and forms pool
emergency treatment of the site. The proposed methodology (s) or lens (es), it es long-term and continuous source
uses only the basic information of the accident: contaminant of groundwater contamination due to its high toxicity, low
type and its properties, groundwater level, soil type and s