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This article published in the Journal of Water Resource and Protection presents a study on the distribution of colloidal and powdered activated carbon for the in-situ treatment of groundwater. To evaluate if powdered activated carbon (PAC) and colloidal activated carbon (CAC) can be effectively distributed in aquifers, the two types of carbon were injected using direct push technology adjacent to each other at four sites with varying geology.

Highlights of the results documented in this research article:

  • CAC showed good distribution throughout the four targeted zones of injection with 93 percent of the samples collected having colloidal activated carbon present within them
  • PAC cells were more susceptible to aquifer heterogeneity with only 67 percent of the samples collected having activated carbon present
  • These results suggested that the PAC was more suspectable at the four sites to heterogeneity within the aquifer than the CAC

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About the Environmental Consultant/Author:

Rick McGregor is the President of InSitu Remediation Services Ltd Rick McGregor
President, InSitu Remediation Services Ltd
Rick McGregor is the President of InSitu Remediation Services Ltd and has over 26 years’ experience in groundwater and soil assessment and remediation. Rick has worked in over 30 countries and has authored numerous papers on groundwater assessment and remediation. Rick holds a M.Sc. from the University of Waterloo in hydrogeology and geochemistry and is a Certified Ground Water Professional in Canada and the United States.

About InSitu Remediation Services Ltd:

Rick McGregor is the President of InSitu Remediation Services Ltd One of Canada’s most experienced remediation companies, InSitu Remediation Services Ltd. (IRSL) has designed, implemented, and maintained soil and groundwater remediation programs in diverse geological environments in North, Central, and South America, Europe and the Middle East.