Issue 11, 2019

Treatment of per- and polyfluoroalkyl substances in landfill leachate: status, chemistry and prospects

Abstract

Per- and polyfluoroalkyl substances (PFAS) have been widely detected in municipal landfills due to the massive uses of PFAS in everyday consumer products. PFAS in landfill leachate can contaminate the neighbouring soil and groundwater and pose serious health concerns to human and ecosystems. Yet, information is lacking on the distribution, transformation and fate of various PFAS in landfills, and on the treatment technologies to remove or degrade PFAS in landfill leachate. As the relevant regulations are rapidly evolving, the research and technology development have been gaining momentum in recent years. Here, we present a comprehensive review of the state of the science on the occurrence and treatment technologies of PFAS in landfills. Specifically, this review aims to overview the following aspects: 1) the occurrence and transformation of PFAS under typical landfill environmental conditions, 2) the chemistry and state-of-art technologies for treating PFAS in landfill leachate, including adsorption, biodegradation, photo-degradation, and membrane processes, and 3) the key knowledge gaps and future research/technology needs for controlling PFAS from landfills.

Graphical abstract: Treatment of per- and polyfluoroalkyl substances in landfill leachate: status, chemistry and prospects

Article information

Article type
Critical Review
Submitted
27 heinä 2019
Accepted
03 loka 2019
First published
04 loka 2019

Environ. Sci.: Water Res. Technol., 2019,5, 1814-1835

Treatment of per- and polyfluoroalkyl substances in landfill leachate: status, chemistry and prospects

Z. Wei, T. Xu and D. Zhao, Environ. Sci.: Water Res. Technol., 2019, 5, 1814 DOI: 10.1039/C9EW00645A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements