scholarly journals EVALUATION OF THE TREATABILITY OF MUNICIPAL WASTE LANDFILL LEACHATE IN A SBR AND BY COAGULATION-FLOCCULATION ON A BENCH SCALE

2016 ◽  
Vol 33 (4) ◽  
pp. 851-861 ◽  
Author(s):  
E. Fleck ◽  
A. G. Gewehr ◽  
L. F. A. Cybis ◽  
G. R. Gehling ◽  
V. B. Juliano
Keyword(s):  
Landfill Leachate ◽  
Municipal Waste ◽  
Waste Landfill ◽  
Bench Scale

scholarly journals QUALITATIVE RESEARCH AND EVALUATION OF LANDFILL LEACHATE / KOKYBINIAI SĄVARTYNO FILTRATO TYRIMAI IR VERTINIMAS

2013 ◽  
Vol 5 (4) ◽  
pp. 356-362 ◽  
Author(s):  
Irina Kačinskaja ◽  
Kristina Bazienė ◽  
Saulius Vasarevičius
Keyword(s):  
Experimental Data ◽  
Landfill Leachate ◽  
Suspended Solids ◽  
Environmental Problem ◽  
Oxygen Demand ◽  
Optimal Operation ◽  
Municipal Waste ◽  
Vital Activity ◽  
Waste Landfill ◽  
Calcium And Magnesium

Currently, depositing municipal waste in landfills is the dominating method in Lithuania. A large amount of landfill leachate is the main environmental problem. Municipal waste landfill leachate is characterized by high biochemical oxygen demand (BOD) containing a number of heavy metals and concentration of organic compounds. The colmatation of landfill leachate collection systems is another burning problem that occurs due to certain characteristics of leachate such as suspended solids, an increase in calcium and magnesium concentrations and vital activity of microorganisms. Therefore, it is necessary to examine conditions affecting these parameters. The paper presents and analyses the characteristics of experimental data, assesses the factors having the greatest influence on recent development and introduces the measures that should be taken into account so that to the ensure optimal operation of the systems for collecting municipal waste landfill leachate. Article in Lithuanian. Santrauka Pagrindinis atliekų tvarkymo būdas Lietuvoje yra jų deponavimas sąvartynuose. Viena iš svarbiausių aplinkosauginių problemų – dideli susidarantys sąvartyno filtrato kiekiai. Komunalinių atliekų sąvartynų filtratui būdinga didelis biocheminio deguonies suvartojimas (BDS), filtrate taip pat nemažà sunkiųjų metalų bei organinių junginių koncentracija. Svarbu išskirti ir tokią problemą kaip sąvartyno filtrato surinkimo sistemų kolmatacija, pasireiškianti dėl tam tikrų filtrato savybių: skendinčiųjų medžiagų, kalcio ir magnio koncentracijų padidėjimo ir mikroorganizmų gyvybinės veiklos. Būtina įvertinti sąlygas, turinčias įtakos šių parametrų kitimui. Pateikti minėtų savybių eksperimentinių tyrimų duomenys ir analizė. Įvertinta, kokie veiksniai turi didžiausią įtaką filtrato parametrų kitimui, pavyzdžiui, tai, jog bendrasis kietumas (kalcis ir magnis) lemia pH didėjimą, t. y. terpės šarmėjimą. Be to, išanalizuota, kokių priemonių reikėtų imtis optimaliam komunalinių atliekų sąvartyno filtrato surinkimo sistemų veikimui užtikrinti.

Evaluation of the carcinogenic risk of chemicals landfill of municipal solid waste

2020 ◽  
pp. 683-683
Author(s):  
O. A. Loktionov ◽  
O. E. Kondrateva ◽  
V. V. Yushin
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Residential Development ◽  
Carcinogenic Risk ◽  
Municipal Waste ◽  
Development Zone ◽  
Protection Zone ◽  
Waste Landfill ◽  
Solid Municipal Waste

The paper assesses the carcinogenic risks from emissions of solid municipal waste landfill for the case when the residential development zone potentially falls within the boundaries of the sanitary protection zone, as well as for the normal situation when the employee of the landfill is on its territory for 8-hour shift.

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

Environments ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 17
Author(s):  
Son Tran Hoai ◽  
Huong Nguyen Lan ◽  
Nga Tran Thi Viet ◽  
Giang Nguyen Hoang ◽  
Ken Kawamoto
Keyword(s):  
Environmental Pollution ◽  
Landfill Leachate ◽  
Pollution Index ◽  
Temporal Variations ◽  
Inorganic Pollutants ◽  
Landfill Leachates ◽  
Leachate Treatment ◽  
Waste Landfill ◽  
Permissible Limits ◽  
Leachate Pollution Index

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.

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