The use of carbon-based and non-carbon based soil amendments for immobilization of PFASs has been the focus of many researchers. However, the majority of available literature is solely limited to laboratory-scale studies. The remediation industry commonly employs activated carbon as an effective and affordable treatment for communities affected by PFAS-contaminated soil or water. There are alternative treatment technologies that offer more or less removal efficiency for a broader suite of PFASs. Economic feasibility, longevity, and removal efficiency are important factors selecting a remediation practice for PFAS-contaminated leachate and soil. Biochar, having similar properties to GAC, has been studied and used to remove organic compounds. However, the state of development for PFAS removal is immature, and full-scale in-situ studies on PFAS sorption or immobilization by biochar are almost nonexistent. Pyrolysis of biosolids has been employed as an alternative process to traditional landfilling and incineration. The advantages of pyrolysis are using less energy, creating less gaseous emissions, destroying pathogens, and generating biochar. A sustainable pyrolysis process can be developed to destroy PFAS in biosolids. Additionally, the generated biochar, using biosolids as a feedstock, can be used to immobilize PFAS in landfills. This work reviews the technical viability and economic feasibility of biosolid pyrolysis for both destructions of PFAS in biosolid and biochar generation to immobilize PFAS in contaminated soil.<br/>

Use of biochar from biosolid pyrolysis for PFAS management in landfills: Technical and economic feasibility

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.