Mechanical characterization of municipal solid waste from two waste dumps at Delhi, India

Ramaiah, B. J.; Ramana, G. V.; Datta, Manoj

doi:10.1016/j.wasman.2017.05.055

Cited by 61 publications

(19 citation statements)

References 40 publications

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“…However, the studies of various researchers [22,23,41] showed that the variation in c and φ values of samples did not follow any trend with the rate of degradation and similarly the effect of degradation on shear strength parameters was not following any pattern [23]. Some studies [18,23,41] showed that decreases in c and increase in φ values were observed with decomposition. The study conducted by the researcher [16], reported that with an increase in degradation of waste φ increases but any correlation of decomposition with c was not found.…”

Section: Disha Thakur Ashok Kumar Gupta Rajiv Gangulymentioning

confidence: 99%

“…The degradation of waste varies shear strength parameters as increases cohesion from 12 to 67 kPa and decreases the angle of internal friction from 38° to 24° [19,22,36,38,40]. However, the studies of various researchers [22,23,41] showed that the variation in c and φ values of samples did not follow any trend with the rate of degradation and similarly the effect of degradation on shear strength parameters was not following any pattern [23]. Some studies [18,23,41] showed that decreases in c and increase in φ values were observed with decomposition.…”

Section: Disha Thakur Ashok Kumar Gupta Rajiv Gangulymentioning

confidence: 99%

“…The larger particles of MSW were measured manually. The MSW was shredded using low-speed torque shredder to obtain the representative sample because of difficulty to use larger sized particle for laboratory testing [19,23,46]. The shredded samples varied in size between 0.75mm to 40 mm.…”

Section: Physical Propertiesmentioning

confidence: 99%

“…The geotechnical characteristics of MSW are important parameters for designing of landfill which considers engineering aspects like stability under seismic and static conditions, settlement (compression) behavior and during earthquakes, dynamic response of waste material as given in Table I [11,12,13]. The geotechnical aspects for designing of landfill include determination of unit weight, hydraulic conductivity, compressibility, shear strength characteristics of the municipal solid waste [7,9,[11][12][13][14][15][16][17][18][19][20][21][22][23]. The degradation of waste changes engineering properties of MSW which are useful for designing the various components of the landfill and also for assessing the geotechnical stability.…”

Section: Introductionmentioning

confidence: 99%

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Geotechnical Properties of Fresh and Degraded MSW In the Foothill of Shivalik Range Una, Himachal Pradesh

Thakur¹

2019

IJRTE

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The aim of the present study is to determine the physical and geotechnical characteristics of municipal solid waste (MSW) from an open dump site located in Una town, Himachal Pradesh (India) for the analysis of settlement and structural stability of landfill. Degraded waste was tested for different time intervals ranging from 6 months to 6 years. The physical characterization and the geotechnical tests were performed to determine the composition and the engineering properties of MSW respectively. The presence of moisture content in the fresh waste was 49.5±1.05% but for the degraded (or old) waste it varied between 39.8 to 51.6%. The specific gravity of fresh and old waste varied between 1.83±0.05 and 1.85 for 6 months old waste and 2.28 for 5-6 years old degraded waste respectively. The maximum dry density (MDD) was observed to be 4.28 kN/m2 for fresh waste at the optimum moisture content (OMC) of 78.1% and 4.47 kN/m3 for 6 months old waste and 6.25 kN/m3 for the degraded waste of 5-6 years at 80.2, 85.4% of OMC respectively. The hydraulic conductivity (k) of MSW was found to be decreasing with the degradation of MSW and the overburden pressure whereas the shear strength increased along with the degradation of the waste. The cohesion (c) and angle of internal friction (φ) increased respectively from 31.2 kPa(fresh) to 38 kPa(degraded) and 14° to 22° with the increase in waste degradation. The compression ratio of fresh waste was within the ranges of 0.19-0.29 and for degraded MSW it varied between 0.12 for 6 months old waste and 0.17 for 5-6 years old degraded waste respectively.

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Section: Disha Thakur Ashok Kumar Gupta Rajiv Gangulymentioning

confidence: 99%

Section: Disha Thakur Ashok Kumar Gupta Rajiv Gangulymentioning

confidence: 99%

Section: Physical Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Geotechnical Properties of Fresh and Degraded MSW In the Foothill of Shivalik Range Una, Himachal Pradesh

Thakur¹

2019

IJRTE

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“…The rapid rise in economic and population growth, and industrial development coupled with urbanization, has resulted in a continuous increase in the generation of municipal solid waste (MSW) in most countries including South Africa (Gwebu, 2003;Ayuba et al, 2013;Ramaiah et al, 2017;Naveen et al, 2017;Renou et al, 2008;DEA., 2012a). Factors such as the population of a country, lifestyle changes, food habits, improved standards of living, enhanced industrial and commercial activities, cultural traditions of the inhabitants, and climate may influence the composition and quantity of municipal solid waste generated in most countries (Singh et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Leachate seepage from landfill: a source of groundwater mercury contamination in South Africa

Nevondo

Malehase

Daso

et al. 2019

WSA

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Mercury has been used for many centuries in the production of consumer products such as thermometers, electrical switches, fluorescent light bulbs, batteries, biocides and pesticides, cosmetics and dental amalgam filling, among others. After use, these mercury-containing consumer products form part of the municipal solid waste (MSW). As a result of an unseparated solid waste collection system, mercury-containing wastes tend to end up in landfills where mercury and other pollutants can leach out of products into landfill leachates. The present study, therefore, was conducted with the aim of determining the total mercury (THg) concentrations in leachate and sediment samples collected from 4 selected landfill sites (3 sites in Gauteng Province – Soshanguve, Hatherly, Onderstepoort and 1 site in Limpopo Province – Thohoyandou). Groundwater samples were collected from the monitoring boreholes at the four selected landfill sites in the summer and winter periods. An acid digestion method was employed for sample preparation and this was followed by analysis using cold vapour atomic absorption spectrophotometry (CVAAS). The concentration range of total mercury in the Thohoyandou leachate, sediment and groundwater samples was 0.12–2.07 μg/L, 0.03–0.48 μg/g and 0.09–2.12 μg/L, respectively. In Soshanguve, the concentration range of total mercury in leachate, sediment and groundwater samples was 0.10–1.20 μg/L, 0.04–0.62 μg/g and nd –1.66 μg/L respectively, Hatherly concentration range was 0.42–1.31 μg/L and 0.06–0.78 μg/g in leachate and sediment, respectively and in Onderstepoort the concentration range was 0.12–2.41 μg/L, 0.03–0.50 μg/g and 0.05–2.44 μg/L, in leachate, sediment and groundwater, respectively. The findings from this study suggest that there is a likelihood of groundwater pollution by mercury from landfill leachate seepage, particularly for landfills that are not lined with a geomembrane.

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Landslide Hazard Evaluation of a Large Waste Landfill in Bogotá City

Lozano,

Ávila

2024

Progress in Landslide Research and Technology

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The Doña Juana waste landfill receives solid urban waste from about nine million people living in Bogotá and several nearby municipalities. This article describes the characteristics of this landfill which has suffered some important landslides with serious environmental effects, shows the main geotechnical studies carried out for the characterization of the materials, analyzes the operation and monitoring processes, especially the pore pressures generated by leachate and the results of the landslide hazard evaluation in terms of the probability of failure for static and pseudo-static conditions.

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Mechanical characterization of municipal solid waste from two waste dumps at Delhi, India

Cited by 61 publications

References 40 publications

Geotechnical Properties of Fresh and Degraded MSW In the Foothill of Shivalik Range Una, Himachal Pradesh

Geotechnical Properties of Fresh and Degraded MSW In the Foothill of Shivalik Range Una, Himachal Pradesh

Leachate seepage from landfill: a source of groundwater mercury contamination in South Africa

Landslide Hazard Evaluation of a Large Waste Landfill in Bogotá City

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