scholarly journals Numerical modelling to show variation in the amount of leachate in a solid waste column in the sanitary landfill sites of the Mejía and Ambato cantons

2018 ◽  
Author(s):  
José Elías Cuásquer Jordán ◽  
Bélgica Estefanía Paredes Paredes ◽  
María José Paneluisa Tituaña ◽  
Maribel de los Angeles Chillagana Toapanta ◽  
Richard Jachson Vilches Moreno ◽  
...  
Keyword(s):  
Solid Waste ◽  
Vegetation Cover ◽  
Average Distance ◽  
Landfill Site ◽  
Sanitary Landfill ◽  
Silty Clay ◽  
Load Pressure ◽  
Pressure Load ◽  
Landfill Sites ◽  
Hydraulic Load

The leachate generated by the direct disposal of solid waste into the soil of terrace number one of the Romerillos sanitary landfill site contaminates the environment. This is visible from an average distance of up to 20m with the presence of dry vegetation cover showing infiltration by leachate and soil pollution in the surface and underground. Meanwhile, in the soil of terrace number one of the Ambato sanitary landfill site, the contaminated environment is visible from an average distance of 33m with the presence of dry vegetation cover. At both the Romerillos and the Ambato sanitary landfill sites, a quantification study of codified (Matlab) and spatial (ArcGis) variability of the characteristics, such as hydraulic load, pressure load and percentage of leachate, was carried out. Field data was collected for the Matlab simulation. For 10 specific GPS Navigator sampling points, the variables studied included infiltration speed, porosity, infiltration distance, Van Genuchten parameters and time. Estimation graphs were created for each variable at 10, 20, 30 and 40mins. Through the observation of the graphs obtained in Matlab, it was determined that the variable hydraulic load is inversely proportional to depth. It was also established that the behaviour of the pressure load is directly proportional to depth and percentage of leachate was inversely proportional to depth. All the variables analysed showed a normal behaviour due to the silty-clay soil type in the "Romerillos" sanitary landfill site and sandy-loam in the Ambato sanitary landfill site.

scholarly journals Numerical modelling to show variation in the amount of leachate in a solid waste column in the sanitary landfill sites of the Mejía and Ambato cantons

2018 ◽  
Author(s):  
José Elías Cuásquer Jordán ◽  
Bélgica Estefanía Paredes Paredes ◽  
María José Paneluisa Tituaña ◽  
Maribel de los Angeles Chillagana Toapanta ◽  
Richard Jachson Vilches Moreno ◽  
...  
Keyword(s):  
Solid Waste ◽  
Vegetation Cover ◽  
Average Distance ◽  
Landfill Site ◽  
Sanitary Landfill ◽  
Silty Clay ◽  
Load Pressure ◽  
Pressure Load ◽  
Landfill Sites ◽  
Hydraulic Load

The leachate generated by the direct disposal of solid waste into the soil of terrace number one of the Romerillos sanitary landfill site contaminates the environment. This is visible from an average distance of up to 20m with the presence of dry vegetation cover showing infiltration by leachate and soil pollution in the surface and underground. Meanwhile, in the soil of terrace number one of the Ambato sanitary landfill site, the contaminated environment is visible from an average distance of 33m with the presence of dry vegetation cover. At both the Romerillos and the Ambato sanitary landfill sites, a quantification study of codified (Matlab) and spatial (ArcGis) variability of the characteristics, such as hydraulic load, pressure load and percentage of leachate, was carried out. Field data was collected for the Matlab simulation. For 10 specific GPS Navigator sampling points, the variables studied included infiltration speed, porosity, infiltration distance, Van Genuchten parameters and time. Estimation graphs were created for each variable at 10, 20, 30 and 40mins. Through the observation of the graphs obtained in Matlab, it was determined that the variable hydraulic load is inversely proportional to depth. It was also established that the behaviour of the pressure load is directly proportional to depth and percentage of leachate was inversely proportional to depth. All the variables analysed showed a normal behaviour due to the silty-clay soil type in the "Romerillos" sanitary landfill site and sandy-loam in the Ambato sanitary landfill site.

scholarly journals Numerical modelling to show variation in the amount of leachate in a solid waste column in the sanitary landfill sites of the Mejía and Ambato cantons

2018 ◽  
Author(s):  
José Elías Cuásquer Jordán ◽  
Bélgica Estefanía Paredes Paredes ◽  
María José Paneluisa Tituaña ◽  
Maribel de los Angeles Chillagana Toapanta ◽  
Richard Jachson Vilches Moreno ◽  
...  
Keyword(s):  
Solid Waste ◽  
Vegetation Cover ◽  
Average Distance ◽  
Landfill Site ◽  
Sanitary Landfill ◽  
Silty Clay ◽  
Load Pressure ◽  
Pressure Load ◽  
Landfill Sites ◽  
Hydraulic Load

The leachate generated by the direct disposal of solid waste into the soil of terrace number one of the Romerillos sanitary landfill site contaminates the environment. This is visible from an average distance of up to 20m with the presence of dry vegetation cover showing infiltration by leachate and soil pollution in the surface and underground. Meanwhile, in the soil of terrace number one of the Ambato sanitary landfill site, the contaminated environment is visible from an average distance of 33m with the presence of dry vegetation cover. At both the Romerillos and the Ambato sanitary landfill sites, a quantification study of codified (Matlab) and spatial (ArcGis) variability of the characteristics, such as hydraulic load, pressure load and percentage of leachate, was carried out. Field data was collected for the Matlab simulation. For 10 specific GPS Navigator sampling points, the variables studied included infiltration speed, porosity, infiltration distance, Van Genuchten parameters and time. Estimation graphs were created for each variable at 10, 20, 30 and 40mins. Through the observation of the graphs obtained in Matlab, it was determined that the variable hydraulic load is inversely proportional to depth. It was also established that the behaviour of the pressure load is directly proportional to depth and percentage of leachate was inversely proportional to depth. All the variables analysed showed a normal behaviour due to the silty-clay soil type in the "Romerillos" sanitary landfill site and sandy-loam in the Ambato sanitary landfill site.

Landfill siting based on optimisation, multiple decision analysis, and geographic information system analyses

2018 ◽  
Vol 36 (7) ◽  
pp. 606-615 ◽  
Author(s):  
Luciana MG Spigolon ◽  
Mariana Giannotti ◽  
Ana P Larocca ◽  
Mario AT Russo ◽  
Natália da C Souza
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Decision Analysis ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Geographic Information ◽  
Landfill Site ◽  
Sanitary Landfill ◽  
Sanitary Landfills ◽  
The Cost

Sanitary landfill remains the most common methodology for final treatment and disposal of municipal solid waste worldwide, the cost per tonne depends on its scale. The bigger the landfill, the cheaper the cost of treatment, so the consortium of municipalities is the solution to achieve an economic scale. However, the growth of waste production introduces pressure for adequate solutions and therefore has been increasing sanitary landfill site selection studies. This study proposes a methodology for siting sanitary landfills and optimising the transport of municipal solid waste for a locality in the state of São Paulo, Brazil. Environmental, social, and economic criteria were established. Their correlated attributes were categorised into suitability levels and weighted according to multiple decision analysis. The data were organised and mapped within a geographic information system. Considering sites where landfills are prohibited, two scenarios were generated. The Mixed-Integer Quadratic Programming mathematical model is used to minimise the costs of transporting municipal solid waste and operating sanitary landfills. In Scenario 1, the results indicated that 64% of the area was suitable as a potential sanitary landfill site, 9% of the area exhibited medium suitability, and 27% of the area was classified as restricted. In Scenario 2, the results indicated that 25% of the area was suitable as a potential sanitary landfill site, 4% of the area had medium suitability, and 71% of the area was classified as restricted. The optimal solutions for Scenario 1 and Scenario 2 enabled sites to be determined for five landfills and four landfills, respectively.

scholarly journals Implementation of fuzzy, Simos and strengths, weaknesses, opportunities and threats analysis for municipal solid waste landfill site selection: Adana City case study

2019 ◽  
Vol 38 (1_suppl) ◽  
pp. 45-64 ◽  
Author(s):  
Muge Unal ◽  
Ahmet Cilek ◽  
Esra Deniz Guner
Keyword(s):  
Fuzzy Logic ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Landfill Site ◽  
Limited Area ◽  
Final Decision ◽  
Economic Factors ◽  
Landfill Sites ◽  
Selection Of ◽  
Socio Economic Factors

The selection of suitable landfill locations for municipal solid waste has become a top priority, especially in developed countries as a result of rapid population growth, unplanned urbanisation, increasing waste production and the limited area available. However, determining the location of landfill sites is a complex decision-making problem for municipalities and depends on social, environmental, technical and economic factors and regulations. In this study, we combined a geographic information system (GIS), multi-criteria decision-analysis techniques and fuzzy logic to determine the best location for landfill sites in Adana, Turkey, in four steps. Firstly, the threshold values and the coefficient weights of 15 criteria, grouped into environmental and socio-economic factors, were determined by a literature review and expert opinion to select suitable landfill locations. Secondly, selection criteria were standardised using fuzzy logic. Thirdly, we assessed the criteria weights based on their effectiveness on the selection of potential landfill sites using the Simos method. According to the weight coefficients, environmental factors are more important than socio-economic factors. Final maps for each criterion were calculated and overlaid by a GIS. As a result, the final suitability results were divided into four discrete categories: very high, high, moderate and low suitability areas, representing 1%, 76%, 17% and 6% of the location options, respectively. Finally, four different alternative areas were identified as being very highly suitable for landfill locations, which were evaluated in detail using a strengths, weaknesses, opportunities and threats analysis. Three key aspects affect the final decision of a landfill site, in decreasing order of importance: environmental protection, minimising the negative impact on urban life quality and economic issues. Consequently, these results can guide decision-makers (ministries, municipalities, planners, etc.) during the selection of suitable landfill sites in both national and international studies.

scholarly journals Municipal Solid Waste Landfill Site Selection Based on Fuzzy-AHP and Geoinformation Techniques in Asir Region Saudi Arabia

2021 ◽  
Vol 13 (3) ◽  
pp. 1538
Author(s):  
Javed Mallick
Keyword(s):  
Solid Waste ◽  
Vegetation Index ◽  
Normalized Difference Vegetation Index ◽  
Negative Impact ◽  
Fuzzy Ahp ◽  
Landfill Site ◽  
Extensive Literature ◽  
Landfill Site Selection ◽  
Landfill Sites ◽  
Very High

One of the main issues with solid waste management is finding appropriate sites for landfill. Non-scientific and inappropriate disposal practices have a negative impact on the environment which affects the quality of life. The study provides an integrated framework with a focus on structuring the decision-making process for the landfill suitability site map. This could be determined by the use of proper data collection, criterion weighting and normalization. In order to understand the procedures that affect the suitability of landfill sites, the integrated GIS-based fuzzy-AHP-MCDA method was implemented to appropriate landfill site for Abha-Khamis-Mushyet located in Aseer region Following the extensive literature review and expert opinion, 10 themes were selected for this study such as drainage density, land use/land cover (LULC), slope, elevation, lineament density, normalized difference vegetation index (NDVI), rainfall, distance from the airport, distance from road, and geology. These themes have been developed through RS (remote sensing) and conventional data. Subsequently, potential landfill sites were identified and divided into five classes: very low suitable (fuzzy value 0.20–0.45), low suitable (0.46–0.55), moderately suitable (0.56–0.65), high suitable (0.66–0.75), and very high suitable (0.76–0.92). According to the statistical analysis, 23.91% and 3.67% of the total area were within a very good and good landfill area, while 38.14% and 22.84% accounted for the moderate and poor suitable zone, respectively. As a quality-based site, the existing two landfill sites were located over a very low suitable and low suitable potential area while one landfill site was located over the high suitable∙ The spatial variance of high and very high potential landfill site zones found in the north-eastern, east-central and south-eastern parts of the watershed. The sensitivity analysis was performed to determine the efficacy of each parameter and reveals that the effective weights for each theme differ slightly from the theoretical weight assigned to the landfill site suitability zone. This technique and its findings can provide an appropriate guideline to assist hydrogeologists, engineers, regional planners, and decision-makers in selecting an optimal landfill site in the future.

scholarly journals Site selection for municipal solid waste landfills in arid regions based on fuzzy decision-making：A Case Study in the Hexi Corridor of China

2021 ◽  
Author(s):  
Jiamin Liu ◽  
Bin Xiao ◽  
Yueshi Li ◽  
Xiaoyun Wang ◽  
Jizong Jiao ◽  
...  
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Site Selection ◽  
Hexi Corridor ◽  
Landfill Site ◽  
National Standard ◽  
Fuzzy Membership Function ◽  
Continuous Growth ◽  
Msw Landfill ◽  
Landfill Sites

Abstract The rational and scientific selection of Municipal Solid Waste (MSW) landfill sites is becoming increasingly important, due to the continuous growth of MSW worldwide. Multi-source information is employed to ensure the accuracy of the evaluation criteria, including hydrogeological, morphological, environmental, climatic and socio-economic data. In the fuzzy logic environment, a Fuzzy Analytic Hierarchy Process (FAHP) and GIS spatial technique have been utilized to locate potential landfill sites. Landfill Site Selection Results (LSSR) were divided into three categories: suitable, less suitable, and unsuitable. Suitable areas were further divided into high, moderate, and low levels. We used the field investigations of 28 standardized landfill sites in the Hexi Corridor of China that comply with the China National Standard (CNS) to verify the LSSR. These sites are then ranked utilizing group fuzzy MULTIMOORA. These methods were more feasible and accurate in assessing the suitability of MSW landfills. The highlights of our methods were as follows: (1) The uncertainty of AHP expert scoring reduced by employing the fuzzy membership function, and the decision efficiency of spatial analysis improved as well. (2) Verification results showed that the main LSSR met the CNS perfectly and located suitable areas, with an accuracy of 93% (26 out of 28 sites). (3) In the highly suitable areas, 11 candidate areas were selected for the MSW landfill site construction in the Hexi Corridor. Furthermore, technical countermeasures for the standardized management of MSW landfills were proposed for the Hexi Corridor, which is critical for ecological/environmental protection.

scholarly journals Identification of Alternative Landfill Site Using QGIS in a Densely Populated Metropolitan Area

2020 ◽  
Vol 39 (3) ◽  
pp. 47-56
Author(s):  
Savita Kumari Sheoran ◽  
Vinti Parmar
Keyword(s):  
Solid Waste ◽  
Multicriteria Analysis ◽  
Underground Water ◽  
Landfill Site ◽  
New Delhi ◽  
Solid Waste Disposal ◽  
Landfill Site Selection ◽  
Analytic Hierarchy ◽  
Landfill Sites ◽  
Hierarchy Process

AbstractAppropriate landfill site selection for disposal of solid waste is a very complicated assignment, as it needs multicriteria analysis of various parameters. In this study, we have used QGIS for identification of alternative landfill site in Gurugram district, a satellite city of New Delhi. Various criteria are analysed for selecting the landfill sites. Weight and rank are assigned to the criterion such as road networks, presence of water bodies, residential locations, and depth of the underground water table by using the Analytic Hierarchy Process (AHP). Five possible landfill sites have been identified for solid waste disposal based upon the AHP method analysis and overlay analysis in GIS tool in Gurugram district. The methodology used in this paper is very efficient for performing multicriteria analysis and can be generalised for selecting landfill sites in other areas with similar demographics.

Research of Stratified Compaction Process of Municipal Solid Waste

2012 ◽  
Vol 599 ◽  
pp. 640-646
Author(s):  
Yu Kun Wang ◽  
Ju Ping Yang ◽  
Xu Ya Peng
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Positive Influence ◽  
Landfill Site ◽  
Sanitary Landfill ◽  
Layer By Layer ◽  
Operational Cost ◽  
Safe Operation ◽  
Compaction Process ◽  
Garbage Dump

The density of municipal solid waste is lower. In order to increase the density of garbage dump, guarantee safe operation, save operational cost and extend the lifetime of landfill site it is very important to compact garbage layer by layer. Through the analysis of mechanical property and systematically study of the engineering experiment of Changshengqiao Sanitary Landfill which is the first standardized landfill site in Chongqing we conclude that there is no positive influence of compacting effect caused by moisture content of garbage dump, and the best compacting effect is resulted from 3 times compacting of each garbage layer of which the thickness is about 0.6m by special compactor.

Sign in / Sign up

Export Citation Format

Share Document