Surfactant-enhanced aquifer remediation : Mechanisms, influences, limitations and the countermeasures

Copyright © 2020 Elsevier Ltd. All rights reserved..

In recent years, surfactant-enhanced aquifer remediation (SEAR) has attracted increasing interest duo to the high efficiency of removing non-aqueous phase liquids (NAPLs) from aquifer. A thorough understanding of SEAR is necessary for its successful implementation in field remediation. This paper reviewed the SEAR technology in a comprehensive way based on the recent research advances. Firstly, an overview of the basic processes and mechanisms underlying the technology was presented. Secondly, applications of SEAR and the factors that influence the performance were summarized. Thirdly, the key limitations of SEAR, which are downward migration of dense-NAPLs, secondary pollution of surfactants, adsorptive, precipitative and partitioning loss of surfactants, and heterogeneity of the aquifer, were reviewed. Finally, the recent advances in modifying SEAR to overcome the limitations were discussed in detail. The review will promote our understanding of SEAR technology and provide some useful information to improve the performance of SEAR in applications.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:252

Enthalten in:

Chemosphere - 252(2020) vom: 27. Aug., Seite 126620

Sprache:

Englisch

Beteiligte Personen:

Huo, Lili [VerfasserIn]
Liu, Guansheng [VerfasserIn]
Yang, Xin [VerfasserIn]
Ahmad, Zulfiqar [VerfasserIn]
Zhong, Hua [VerfasserIn]

Links:

Volltext

Themen:

Journal Article
Mobilization
Non-aqueous phase liquids
Porous media
Pulmonary Surfactants
Review
Secondary pollution
Solubilization
Surface-Active Agents
Surfactant-enhanced aquifer remediation
Water Pollutants, Chemical

Anmerkungen:

Date Completed 09.07.2020

Date Revised 09.07.2020

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.chemosphere.2020.126620

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM310255023