Accession Number : AD1042945


Title :   Technical Guidance Manual: Contaminant Flux Reduction Barriers for Managing Difficult-to-Treat Source Zones in Unconsolidated Media


Descriptive Note : Technical Report,01 Oct 2013,01 Jun 2017


Corporate Author : GSI Environmental Houston United States


Personal Author(s) : Newell, Charles ; Kulkarni,Poonam R ; Higgins,Elaine A ; Strasters,Brian A ; Newell,Charles J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1042945.pdf


Report Date : 20 Jun 2017


Pagination or Media Count : 51


Abstract : The overall objective of this project was to evaluate if inexpensive flow reduction agents delivered via permeation grouting technology could help manage difficult-to-treat chlorinated solvent source zones. This approach aims to provide two benefits for improving groundwater quality at chlorinated volatile organic carbon (CVOC) sites by: 1. physically reducing the mass flux of contaminants leaving the source zone by using permeation grouting, thereby reducing risk and making the down gradient plume more amenable for management by natural attenuation processes; and 2) increasing the Natural Source Zone Depletion (NSZD) rate within the source by diverting competing electron acceptors around the source zone to create an enhanced reductive dechlorination zone (ERDZ).


Descriptors :   environmental security , groundwater , water supplies , monitoring , silica gels , case studies , attenuation , organic materials , CHLORINATION , solvents , GROUTING


Subject Categories : Water Pollution and Control
      Construction Equipment, Materials & Supplies


Distribution Statement : APPROVED FOR PUBLIC RELEASE