scholarly journals Leachates From Landfill Sites In Thessaloniki, Greece: Effect Of Aging

2019 ◽  
Vol 75 (4) ◽  
pp. 30-39
Author(s):  
Sofia Mai ◽  
Elli Barampouti ◽  
Adamadios Koumalas ◽  
Athanasios Dounavis
Keyword(s):  
Pollution Index ◽  
Management Systems ◽  
Pollution Potential ◽  
Pollution Load ◽  
Ph Values ◽  
Refractory Compounds ◽  
Landfill Sites ◽  
Leachate Pollution Index ◽  
Leachate Composition ◽  
Full Operation

Sanitary landfilling still is one of the most common management systems of solid urban wastes. The persistent environmental impact of landfills depends on leachate characteristics. The present study aimed at the characterisation of leachate from two landfill sites in the prefecture of Thessaloniki, Greece. Mavrorachi landfill stands in our study as a representative Greek active landfill site, that started operating in 2008. Tagarades landfill has stopped receiving waste from 2008 after 27 years of full operation. In this investigation, leachate samples were physico-chemically characterised so as to assess their pollution potential and their concentration in regard to the type and age of landfill. Elevated concentrations of inorganic and organic constituents were observed in the leachate composition. COD ranged from 2,490 mg/L to 19,700 mg/L, while the respective range for BOD was 390-14,850 mg/L during a 35-year period. The pH values of the leachate samples presented more moderate fluctuations between 7.3 and 8.5. In addition, the ammoniacal nitrogen content increased as landfill age increased, whereas heavy metals concentrations showed significant variations with a slight decreasing trend. The results presented in this paper proved that as time passed, the values of most parameters decreased as the biodegradable compounds are broken down while the refractory compounds resist to biodegradation. Thus, the age has a pronounced influence on the composition of leachate. This study also focused on quantifying the level of contamination that leachates can be potentially cause on a comparative basis by Leachate Pollution Index (LPI). LPI values showed that pollution load was declining but is still not negligible after 33 years.

scholarly journals Variability of Parameters Involved in Leachate Pollution Index and Determination of LPI from Four Landfills in Malaysia

2010 ◽  
Vol 2010 ◽  
pp. 1-6 ◽  
Author(s):  
Muhammad Umar ◽  
Hamidi Abdul Aziz ◽  
Mohd Suffian Yusoff
Keyword(s):  
High Risk ◽  
Seasonal Variations ◽  
Pollution Index ◽  
Landfill Site ◽  
Pollution Potential ◽  
Landfill Sites ◽  
Potential Sources ◽  
Leachate Pollution Index ◽  
Over Time

Landfill sites are potential sources of human and environmental hazards. Leachate produced form these waste dumping sites is heterogeneous and exhibits huge temporal and seasonal variations. Leachate pollution index (LPI) provides an overall pollution potential of a landfill site. The parameters required to calculate LPI from a landfill site are discussed in terms of their variations over time, and their significance has been highlighted in the context of LPI. The LPI values of two semiaerobic and two anaerobic landfill sites in Malaysia have been calculated in this study. Pulau Burung Landfill Site (PBLS) was found to have the highest LPI score while Ampang Jajar Landfill Site (AJLS) showed the lowest LPI as compared to other landfills. It is concluded that LPI value can be used as a tool to assess the leachate pollution potential from landfill sites particularly at places where there is a high risk of leachate migration and pollution of groundwater.

scholarly journals Assessment of Age Effect of Dumpsite on Biodegradability and Pollution Potentials of Leachate

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
A.A Badejo ◽  
A.A Adekunle ◽  
J.O Adeosun ◽  
E.G Nwosu
Keyword(s):  
Oxygen Demand ◽  
Pollution Index ◽  
Age Effect ◽  
Waste Generation ◽  
Pollution Potential ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Leachate Pollution Index ◽  
Total Dissolved Solid ◽  
Standard Limit

The increase in world’s population has led to increase in waste generation and is a source of concern for stakeholders across the world. These wastes end up in dumpsites which undergo different stages of decomposition thereby producing Leachate which have a tendency of polluting groundwater. This study assessed biodegradability and Leachate Pollution Index (LPI) of dumpsite relative to its age. Three dumpsites Orile (O), Solous 3 (S3) and Solous 1 (S1) dumpsites with different ages: – less than 5, between 5-10 and greater than 10 years old respectively were studied. Leachate samples were collected from each dumpsite; Physico-chemical parameters: pH, chloride, Iron, Zinc, Arsenic, Total nitrogen, Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD5), Total Dissolved Solid, Electricity Conductivity and heavy metal: Lead, Chromium and Copper were analysed to determine the LPI while BOD5/COD was determined to ascertain the level of biodegradability of the dumpsites. The BOD5/COD results for O, S3 and S1 leachates were in the decreasing order of 0.37, 0.29 and 0.21 respectively while LPI results for: O, S1 and S3 leachate were 10.00, 11.20 and 15.68 respectively which were above the standard limit of 7.38. The results showed that O and S1 dumpsite leachate had least and highest sign of biodegradability respectively. The LPI result showed that O and S1 dumpsite leachates had the highest and the least pollution potentials respectively. Leachate from dumpsites less than 5 years has higher pollution potentials and lesser biodegradable than leachates from dumpsites more than 5 years. Leachate from O dumpsite will impact negatively on groundwater quality than leachates from S1 and S3 dumpsites. The age of a dumpsite leachate determines its pollution potential and biodegradability.

Geostatistical Modelling of Groundwater Quality at Rumuola Community, Port Harcourt, Nigeria

2020 ◽  
pp. 37-47
Author(s):  
Victor E. Amah ◽  
Fortune A. Agu
Keyword(s):  
Water Quality ◽  
Groundwater Quality ◽  
Water Quality Index ◽  
Ordinary Kriging ◽  
Quality Index ◽  
Pollution Index ◽  
Pollution Potential ◽  
Empirical Bayesian Kriging ◽  
Permissible Limits ◽  
Leachate Pollution Index

The groundwater quality of Rumuola community of Rivers State, Nigeria was investigated. This study was done to determine the pollution potential of a solid waste open dump in a borrow pit in the community. The leachate pollution index was calculated for the borrow pit at the centre of the community using weighted additive leachate pollution index. The result showed that the LPI value was 5.31 and has low pollution potential. It was discovered that the groundwater in the entire community was acidic with pH levels ranging from 3.6 to 4.2, which is below NSDWQ’s permissible range of 6.5-8.5. Nickel and arsenic also showed concentrations that were above permissible limits with nickel values averaging 0.033 mg/l which is slightly above the limit of 0.02 mg/l. Arsenic had concentrations that ranged from 0.16 to 1.57 mg/l which is above permissible limits of 0.01 mg/l. WQI was determined using weighted arithmetic water quality index analysis. As a result of the high concentrations of arsenic, the WQI values were very high with values ranging from 144 to 1367 and this shows that the water in the study area is unsuitable for drinking. In modelling the water quality index of Rumuola community, geostatistical methods were applied. Ordinary kriging, Empirical Bayesian kriging (EBK), inverse distance weighting (IDW) and cokriging interpolations methods were used   to produce surface maps showing the distribution of variables using ARCGIS software. The best interpolators were: EBK for pH, TDS, Sulphate and nitrate; Ordinary kriging for Nickel and Hardness; IDW for Iron and arsenic; Cokriging for WQI.

scholarly journals Study on leachate pollution index in Big Lake, Pallavaram, Tamilnadu

2020 ◽  
Author(s):  
Suprajha G. S. ◽  
Prasanna K. ◽  
Sudarsan J. S.
Keyword(s):  
Pollution Index ◽  
Leachate Pollution Index

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.

scholarly journals DISTRIBUTION AND PREDICTION ON HEAVY METALS POLLUTION LEVEL (Pb, Cd, Cu, Zn, and Ni) IN SEDIMENT IN BANGKA ISLAND WATERS USING LOAD POLLUTION INDEX AND GEOACCUMULATION INDEX

2013 ◽  
Vol 5 (1) ◽  
Author(s):  
Fasmi Ahmad
Keyword(s):  
Heavy Metals ◽  
Marine Organism ◽  
Geoaccumulation Index ◽  
Sediment Quality ◽  
Pollution Index ◽  
Pollution Load Index ◽  
Pollution Level ◽  
Pollution Load ◽  
Toxic Heavy Metals ◽  
Guideline Values

<p>Bangka Island is rich in natural resources particularly tin minerals. The increasing of tin mining has elevated various wastes such as tailings, oil, and fuel coming from the sand scraper tin boat. These wastes containing toxic heavy metals may harmful to marine organism. Measurement of Pb, Cd, Cu, Zn, and Ni were carried out in September 2010. The purpose of this research was to predict the pollution degree of Pb, Cd, Cu, Zn, and Ni in sediment using two different methods namely geoaccumulation index (I_geo) and pollution load index (PLI). The samples of sediments were collected at 20 stations using Gravity Core. The content of heavy metals in all samples was determined using Atomic Absorption Spectrophotometer with a mixture of air and acetylene flame. The results showed that there was a different of prediction on sediment pollution level between Load Pollution Index with Geoaccumulation Index. According to Load Pollution Index, sediments in this waters were not polluted by Pb, Cd, Cu, Zn, and Ni (PLI&lt;1). Based on Geoaccumulation Index, sediment were also not polluted by Pb, Cu, Zn, and Ni (Igeo&lt;0). While for Cd, sediments divided into three categories, namely not polluted (Igeo&lt;0), light polluted (0&lt;Igeo&lt;1), and medium pollued (1&lt;Igeo&lt;2).  The concentration of the heavy metals still lower than that sediment quality guideline values.</p> <p>Keywords: Bangka Island, heavy metals, geoaccumulation index, pollution load index.</p>

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