Entrapping Per- and Polyfluoroalkyl Substances (PFAS) and destroying microplastics in biosolids

Prada, Andrés

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https://hdl.handle.net/2142/121780 Copy

Description

Title

Entrapping Per- and Polyfluoroalkyl Substances (PFAS) and destroying microplastics in biosolids

Author(s)

Prada, Andrés

Contributor(s)

• Zhang, Wei
• Scott, John

Issue Date

2023-04-19

Keyword(s)

• PFAS
• microplastics
• biosolids

Abstract

The commercialization of biosolids as a soil amendment is recently facing challenges because PFAS and microplastics are frequently detected (or due to their potential to contain PFAS and microplastics). Technologies to destroy PFAS from biosolids, for example, are few and their implementation at a large scale is expensive and infeasible. A promising low-cost option for treating PFAS contaminated biosolids is the use of biochar to immobilize these chemicals and restrict their release to the environment. Moreover, we have found that when biosolids mixed with biomass are subjected to low-temperature pyrolysis (450ᵒC), PFAS can be entrapped into the created biosolids-based biochar and thereby immobilized. Additionally, microplastics can be also carbonized during pyrolysis and thereby destroyed. In this presentation, we will show how the biosolids-based biochar could reduce the leaching of emerging contaminants and mitigate potential contamination of groundwaters.

Has Part

https://youtu.be/JAdwMmL7mjo

Series/Report Name or Number

2023 Emerging Contaminants in the Environment Conference

Type of Resource

• text
• moving image

Language

eng

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