Comparison of the PFAS Adsorption Capabilities of a Coconut Shell Based Granular Activated Carbon and a Bituminous Coal Based Granular Activated Carbon

Abstract

This research compares the ability of two granular activated carbons (GAC) to adsorb perfluoroalkyl substances (PFAS) in water. A bottle study was used to measure reduction in perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS). The carbons used were coal and coconut shell based variants. The research focused on the rates at which the two contaminants were removed. Results showed that both GACs were capable of reducing the concentration >95 for both PFOS and PFOA, and that coconut GAC was able to compete with coal based GAC. Additionally, PFOS was removed more quickly than PFOA, which is similar to what has been observed in previous research.

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Document Details

Document Type
Technical Report
Publication Date
Mar 26, 2020
Accession Number
AD1100851

Entities

People

  • Matthew D. Holliday

Organizations

  • Air Force Institute of Technology

Tags

DTIC Thesaurus Topics

  • Adsorption
  • Air Force
  • Bituminous Coal
  • Chemical Synthesis
  • Chemistry
  • Costs
  • Department Of Defense
  • Ecology
  • Engineering
  • Environmental Pollutants
  • Environmental Protection
  • Governments
  • High Pressure
  • Hydrophobic Properties
  • Ion Exchange
  • Laboratory Equipment
  • Liquid Chromatography
  • Materials
  • Physical Properties
  • Reproductive System
  • Sulfonic Acids
  • Training
  • United States
  • United States Government
  • Water Purification

Fields of Study

  • Environmental science

Readers

  • Agricultural Chemistry/Soil Science
  • Internal Combustion Engine (ICE) Technology.