Ultrasound-based advanced oxidation processes for landfill leachate treatment: Energy consumption, influences, mechanisms and perspectives

Yongjia Lei; Jiajie Hou; Cheng Fang; Yu Tian; Ravi Naidu; Jun Zhang; Xiaohong Zhang; Zhenxing Zeng; Zhang Cheng; Jinsong He; Dong Tian; Shihuai Deng; Fei Shen

doi:10.1016/j.ecoenv.2023.115366

Ultrasound-based advanced oxidation processes for landfill leachate treatment: Energy consumption, influences, mechanisms and perspectives

Ecotoxicol Environ Saf. 2023 Sep 15:263:115366. doi: 10.1016/j.ecoenv.2023.115366. Epub 2023 Aug 12.

Authors

Yongjia Lei¹, Jiajie Hou², Cheng Fang³, Yu Tian⁴, Ravi Naidu³, Jun Zhang⁵, Xiaohong Zhang², Zhenxing Zeng², Zhang Cheng², Jinsong He², Dong Tian², Shihuai Deng², Fei Shen⁶

Affiliations

¹ Institute of Ecological and Environmental Sciences, College of Environmental Sciences, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; Global Centre for Environmental Remediation (GCER), University of Newcastle, Callaghan, NSW 2308, Australia; State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, China.
² Institute of Ecological and Environmental Sciences, College of Environmental Sciences, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
³ Global Centre for Environmental Remediation (GCER), University of Newcastle, Callaghan, NSW 2308, Australia.
⁴ State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, China.
⁵ State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, China. Electronic address: hitsunyboy@126.com.
⁶ Institute of Ecological and Environmental Sciences, College of Environmental Sciences, Sichuan Agricultural University, Chengdu, Sichuan 611130, China. Electronic address: fishen@sicau.edu.cn.

PMID: 37573610
DOI: 10.1016/j.ecoenv.2023.115366

Abstract

Advanced oxidation processes (AOPs) based on ultrasound (US) have attracted considerable attention in recent years due to its advantages in the degradation of landfill leachate. The review summarizes the existing treatment methods of leachate from lab-scale, compares their advantages and disadvantages by focusing on the degradation of emerging contaminants (ECs) in the leachate. Then the US-based AOPs are introduced emphatically, including their degradation mechanisms, influencing factors, energy consumption, further optimization methods as well as the possibility of field-scale application are systematically described. Moreover, this review also expounds on the advantages of dual-frequency US (DFUS) technology compared with single-frequency US, and a theoretically feasible DFUS process is proposed to treat ECs in the leachate. Finally, suggestions and prospects for US technologies in treating landfill leachate are put forward to aid future research on landfill leachate treatment. Meaningfully, this manuscript will provide reference values of US-based technologies in landfill leachate treatment for the practical use, facilitating the development of US-based AOPs in landfill leachate management and disposal.

Keywords: Advanced oxidation process; Emerging contaminants; Landfill leachate; Treatment; Ultrasound.

Publication types

Review

MeSH terms

Oxidation-Reduction
Water Pollutants, Chemical*

Substances

Water Pollutants, Chemical