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Article

Characterizing Seasonal Variation in Landfill Leachate Using Leachate Pollution Index (LPI) at Nam Son Solid Waste Landfill in Hanoi, Vietnam

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Faculty of Environmental Engineering, National University of Civil Engineering, No.55 Giai Phong Street, Hai Ba Trung District, Hanoi 11616, Vietnam
2
Faculty of Building and Industrial Construction, National University of Civil Engineering, No.55 Giai Phong Street, Hai Ba Trung District, Hanoi 11616, Vietnam
3
Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Takayuki Shimaoka
Received: 27 December 2020 / Revised: 22 February 2021 / Accepted: 23 February 2021 / Published: 27 February 2021
The improper treatment of landfill leachates is one of the major problems associated with waste landfilling and causes serious environmental pollution at waste landfill sites and their surroundings. To develop a suitable landfill leachate treatment system and to minimize the risk of environmental pollution, it is important to characterize seasonal and temporal variations of landfill leachates. This study investigated the leachate quality of the Nam Son waste landfill in Hanoi, Vietnam in 2017–2019 and characterized the potential risks of landfill leachate using a leachate pollution index (LPI). The results of this study showed that the seasonal and temporal variation of the overall LPI during the monitoring period was small and in the range of 20–25 (values 2.5 times higher than the maximum permissible limits of Vietnam National Technical Regulation on Industrial Wastewater). The LPI sub-indices attributed to organic and inorganic pollutants were major components of the LPI. Especially, the annually averaged values of LPI of inorganic pollutants were 7.7 times higher than the maximum permissible limits, suggesting that the treatment of inorganic pollutants, such as ammonium-nitrogen (NH4+–N) and total nitrogen (TN), is highly required at Nam Son landfill to prevent environmental pollution surrounding the landfill site. View Full-Text
Keywords: solid waste landfill; landfill leachate; leachate pollution index; monitoring; Nam Son waste treatment complex; Hanoi city solid waste landfill; landfill leachate; leachate pollution index; monitoring; Nam Son waste treatment complex; Hanoi city
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MDPI and ACS Style

Hoai, S.T.; Nguyen Lan, H.; Thi Viet, N.T.; Nguyen Hoang, G.; Kawamoto, K. Characterizing Seasonal Variation in Landfill Leachate Using Leachate Pollution Index (LPI) at Nam Son Solid Waste Landfill in Hanoi, Vietnam. Environments 2021, 8, 17. https://0-doi-org.brum.beds.ac.uk/10.3390/environments8030017

AMA Style

Hoai ST, Nguyen Lan H, Thi Viet NT, Nguyen Hoang G, Kawamoto K. Characterizing Seasonal Variation in Landfill Leachate Using Leachate Pollution Index (LPI) at Nam Son Solid Waste Landfill in Hanoi, Vietnam. Environments. 2021; 8(3):17. https://0-doi-org.brum.beds.ac.uk/10.3390/environments8030017

Chicago/Turabian Style

Hoai, Son T., Huong Nguyen Lan, Nga T. Thi Viet, Giang Nguyen Hoang, and Ken Kawamoto. 2021. "Characterizing Seasonal Variation in Landfill Leachate Using Leachate Pollution Index (LPI) at Nam Son Solid Waste Landfill in Hanoi, Vietnam" Environments 8, no. 3: 17. https://0-doi-org.brum.beds.ac.uk/10.3390/environments8030017

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