Leachate Characteristics of Waste Disposal Sites in Bangladesh and Their Treatment: Temporal Variation And Leachate Pollution Index

2017 ◽  
Vol 43 (3) ◽  
pp. 177-194
Author(s):  
Islam M. Rafizul ◽  
Saddam Hosan
2020 ◽  
Author(s):  
Suprajha G. S. ◽  
Prasanna K. ◽  
Sudarsan J. S.

Environments ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 17
Author(s):  
Son Tran Hoai ◽  
Huong Nguyen Lan ◽  
Nga Tran Thi Viet ◽  
Giang Nguyen Hoang ◽  
Ken Kawamoto

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.


2020 ◽  
Vol 202 ◽  
pp. 05018
Author(s):  
Wardani Adi Saputra ◽  
Onny Setiani ◽  
Mursid Rahardjo

Jatibarang landfill is the final waste disposal site in Semarang that is located near the Kreo River. The existence of landfill near watershed are related to environmental problems caused by landfill leachate that is not managed properly and cause a decrease in water quality. The purpose of this study was to determine the water quality and pollution index of Kreo and Garang River as the biggest river in Semarang. This research was a descriptive study with an observational approach, consisted of 8 sampling sites and using the pollution index method. The results of this study show that the highest BOD concentration is 36.95 and the lowest is 7 mg/l, the highest COD concentration is 1575 and the lowest is 19 mg/l and the highest DO concentration is 7.75 and the lowest 0.14 mg/l. Based on the pollution index analysis, it shows that the highest Pollution index is 7.38, which means that Kreo and Garang River flow is categorized as polluted and the lowest pollution index is 2.32 classified as moderate polluted. In conclusion, the water quality is decreased due to various activities nearby that marked with moderately polluted and polluted resulted by water quality and pollution index assessment.


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