Landfill leachate assessment by hydrological and geophysical data: case study NamSon, Hanoi, Vietnam

Giảng, Nguyễn Văn; Kochanek, Krzysztof; Vu, N. T.; Duan, Nguyen Ba

doi:10.1007/s10163-018-0732-7

Cited by 44 publications

(19 citation statements)

References 40 publications

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“…Access to the water table and sampling is ideal [8,9], but access points are generally limited and provide punctual information in space. In this context, the use of nonintrusive geophysical techniques [10] and, in particular, measurements of spontaneous potential (or self-potential, SP) may prove an interesting alternative [11][12][13][14][15]. The method is based on electrical signals related to the different phenomena studied and detectable from the surface.…”

Section: Introductionmentioning

confidence: 99%

Mapping the Pollution Plume Using the Self-Potential Geophysical Method: Case of Oum Azza Landfill, Rabat, Morocco

Touzani

Mohsine

Ouardi³

et al. 2021

Water

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The main landfill in the city of Rabat (Morocco) is based on sandy material containing the shallow Mio-Pliocene aquifer. The presence of a pollution plume is likely, but its extent is not known. Measurements of spontaneous potential (SP) from the soil surface were cross-referenced with direct measurements of the water table and leachates (pH, redox potential, electrical conductivity) according to the available accesses, as well as with an analysis of the landscape and the water table flows. With a few precautions during data acquisition on this resistive terrain, the results made it possible to separate the electrokinetic (~30%) and electrochemical (~70%) components responsible for the range of potentials observed (70 mV). The plume is detected in the hydrogeological downstream of the discharge, but is captured by the natural drainage network and does not extend further under the hills.

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Section: Introductionmentioning

confidence: 99%

Mapping the Pollution Plume Using the Self-Potential Geophysical Method: Case of Oum Azza Landfill, Rabat, Morocco

Touzani

Mohsine

Ouardi³

et al. 2021

Water

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“…Among the non-intrusive geophysical techniques, several authors have tested the use of spontaneous potential, or self-potential (SP) [4][5][6][7][8] for mapping the pollution plume generated by household waste landfills [9][10][11]. SP is a passive source of information on the spatial distribution of groundwater parameters.…”

Section: Introductionmentioning

confidence: 99%

Mapping Contaminant Plume at a Landfill in a Crystalline Basement Terrain in Ouagadougou, Burkina Faso, Using Self-Potential Geophysical Technique

Barry

Yaméogo

Ayach

et al. 2021

Water

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The delineation of pollution plumes generated by household waste landfills is not easy, particularly in the case of discontinuous or intricately extending water tables, such as those developed in a fractured crystalline bedrock context. In Ouagadougou (Burkina Faso), there are many uncontrolled landfills throughout the urban area. The water table, generally located between 3 and 10 m deep, is likely to be contaminated by the leachate from these landfills. More than 1000 measurements of spontaneous potential (self-potential), referenced by GPS, have been carried out on a landfill and its immediate surroundings to the south of the urban area. The geostatistical processing by analysis of variograms and correlograms highlights an adapted prospecting technique and reliable cartography. The response seems to be mainly due to the electrochemical component with hot spots within the landfill and a plume heading towards the North-East. The distribution of the spontaneous potential seems to be controlled, not by the topography of the site, but by the fracturing of the mother rock of dominant direction 15° N, and by the mother rock/saprolite contact. Thus, the plume does not flow to the market gardening just below the landfill but rather to a residential area where monitoring of the quality of the borehole water is required.

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“…Leachate pollution of the environment and water sources is a complex phenomenon because there are some processes of attenuation that control contaminants in aquifers affected by leachate. Attenuation here refers to dilution, absorption, ion exchange, precipitation, oxidation/reduction reaction, and decomposition processes (Giang et al, 2018). Not minding the fact that natural attenuation and weathering processes underground helps to minimize possible impacts of leachates, their essence depends on climatic and geological features and also on the quality of involved leachates.…”

Section: Electrical Resistivity Anomalies In Relation With Leachate P...mentioning

confidence: 99%

Integrated Geoelectrical Resistivity Method for Environmental Assessment of Landfill Leachate Pollution and Aquifer Vulnerability Studies

Eze¹,

Orji²,

Onoriode³

et al. 2022

GEP

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Leachate plumes from landfills are a major source of pollution in Nigeria, especially in urban areas. Assessing leachate contamination in the subsoil is considered a complex process that needs detailed field measurement to accurately define the extent of contamination. To ascertain the extent of pollution of the subsoil and groundwater sources which were reportedly contaminated by leachate plumes from an old dumpsite located in Osubi town, an integrated geoelectrical method involving 1-D vertical electrical sounding (VES) and 2-D, 3-D ERT techniques were employed. Orthogonal set of 2-D apparent resistivity data was collected in a 100 × 50 m 2 rectangular grid around the dumpsite, using the Wenner array. Two years later, three (3) 2-D resistivity imaging profiles were also recorded in time-lapse mode at the dumpsite to monitor the possible effects of attenuation on the leachate over time. Ten (10) VES data were also acquired and used along with the 2-D imaging data. 2-D apparent resistivity data were inverted with Dipprowin software program. The orthogonal set of 2-D lines of apparent resistivity was merged into 3-D data and inverted with RES3DINV program to create a 3-D subsurface resistivity model. Geological models observed from 2-D and 3-D resistivity inversion revealed low resistivity values in the order ρ < 100 Ω·m which is indicative of leachate plumes in the saturation zone (pore water). The 2-D resistivity-depth sections imaged low resistivity leachate plumes at the near surface (<5 m) to a depth of 25.0 m, while 3-D inversion depth slices imaged leachate contaminant within the first, second and third layers at depth ranging from 0.00 -2.50 m, 2.50 -5.38 m and 5.38 -8.68 m respectively. Thus, leachate contamination clearly increased with depth beyond the depth of first and second aquifers in the area which implies that available groundwater for domestic use is already contaminated with leachate from the dumpsite. Leachate con-

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Landfill leachate assessment by hydrological and geophysical data: case study NamSon, Hanoi, Vietnam

Cited by 44 publications

References 40 publications

Mapping the Pollution Plume Using the Self-Potential Geophysical Method: Case of Oum Azza Landfill, Rabat, Morocco

Mapping the Pollution Plume Using the Self-Potential Geophysical Method: Case of Oum Azza Landfill, Rabat, Morocco

Mapping Contaminant Plume at a Landfill in a Crystalline Basement Terrain in Ouagadougou, Burkina Faso, Using Self-Potential Geophysical Technique

Integrated Geoelectrical Resistivity Method for Environmental Assessment of Landfill Leachate Pollution and Aquifer Vulnerability Studies

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