Journal of Ecology and Rural Environment ›› 2018, Vol. 34 ›› Issue (4): 289-299.doi: 10.11934/j.issn.1673-4831.2018.04.001

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Research Progress on Migration Characteristics and Investigation Technologies of DNAPLs Contaminated Sites

GAO Shang, WANG Lei, LONG Tao, CAO Shao-hua, CHEN Qiang   

  1. State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing 210042, China
  • Received:2017-08-16 Online:2018-04-25 Published:2018-04-17

Abstract:

The main constituents, types, origins and migration characteristics of DNAPLs (dense non-Aqueous phase liquids) were summarized. By introducing the characteristics of spatial distribution, phase partitioning and fate of DNAPLs at contaminated sites, the migration characteristics of DNAPLs were revealed. The advances of the latest investigation technologies of DNAPLs contaminants were reviewed. The principles for determining the presence of DNAPLs and the latest technologies for detecting the distribution of DNAPLs were introduced to offer a reference for determining the proper investigation method for DNAPLs sites, which would benefit a more precise scoping of DNAPLs distribution, as well as the development of cost-effective remedial plans.

Key words: DNAPLs, migration characteristics, phase partitioning, investigation technology

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