Accession Number : AD1031563


Title :   Coupled Diffusion and Reaction Processes in Rock Matrices: Impact on Dilute Groundwater Plumes


Descriptive Note : Technical Report,01 Jun 2009,30 Dec 2015


Corporate Author : CDM Smith Edison United States


Personal Author(s) : Schaefer,Charles ; Towne,Rachel ; Lippincott,David ; Dong,Hailiang


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1031563.pdf


Report Date : 28 Dec 2015


Pagination or Media Count : 116


Abstract : The overall goal of this research was to measure and evaluate the impacts of bedrock structure and mineralogy on the persistence and diffusive flux of trichloroethene (TCE) from rock matrices to groundwater, and to verify that abiotic dechlorination reactions capable of significantly reducing monitored natural attenuation (MNA) time frames actually occur in the field within bedrock matrices. Rates of abiotic chlorinated ethene degradation due to reaction with naturally occurring ferrous minerals within the rock matrices were compared to the rate of diffusive flux through the rock matrix. The impact of this degradation on attenuation time frames subsequently was assessed.


Descriptors :   groundwater , measurement , mineralogy , MODELS , chemistry , chemical reactions , detection , GEOCHEMISTRY , PLUMES , DIFFUSION , Reaction


Subject Categories : Inorganic Chemistry
      Geology, Geochemistry and Mineralogy


Distribution Statement : APPROVED FOR PUBLIC RELEASE