Authors

Luu Thi Cuc 1 , Hoang Van Hung 2 , Van Huu Tap 3*

Affiliations

1 Lao Cai Campus, Thai Nguyen University; luuthicuc@tnu.edu.vn; cuc41mta@gmail.com

2 Thai Nguyen University; hoangvanhung@tnu.edu.vn

3 Center for Advanced Technology Development, Thai Nguyen University; tapvh@tnus.edu.vn; vanhuutap@gmail.com

*Corresponding author: tapvh@tnus.edu.vn; Tel.: +84–983465086

Abstracts

This paper provides an overview of ozone technology in leachate treatment, including its characteristics, sources, treatment efficiency, and challenges. The research elucidates the efficacy of ozone-based methodologies in eliminating pollutants, such as chemical oxygen demand (COD) and ammonium nitrogen (NH4+-N), from leachate, attaining removal rates of up to 99.8% for COD and 91.14% for NH4+-N under optimized experimental conditions. Nevertheless, significant drawbacks persist, encompassing elevated energy consumption, the possible generation of deleterious byproducts (e.g., bromates and aldehydes), and compliance with regulatory frameworks. This review further delineates recent progress in ozone-mediated leachate treatment and delineates critical obstacles to its future application, with a particular focus on Vietnam. In this context, Vietnam produces approximately 4.3 million tons of municipal solid waste annually, of which over 70% is consigned to landfills, yet the resultant leachate remains insufficiently managed, contributing to environmental degradation. The investigation adopts a methodical framework, incorporating data analysis, consolidation of results, and a comparative assessment of literature spanning 2014 to 2025. The outcomes serve as a valuable resource for researchers and policymakers interested in leachate management and ozone technology applications, offering a clear foundation and direction for future investigations.

Keywords

Ozone technology; Leachate; Characteristics; Challenges; Wastewater treatment.

Cite this paper

Cuc, L.T.; Hung, H.V.; Tap, V.H. Application of ozone technology in leachate treatment for sustainable development: A brief review. J. Hydro-Meteorol. 2025, 23, 88-99.

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