Spatio-temporal monitoring of leachates dispersion beneath a solid wastes dump in basement complex of southwestern Nigeria

Adabanija, M. A.

doi:10.1016/j.jappgeo.2023.104953

Cited by 4 publications

(3 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the same time, various undesirable geological environmental problems have arisen. Acid mainly comes from landfills, slag landfills, and acid rain. − More specifically, the leakage of acidic liquid has caused pollution of the groundwater system and significantly accelerates the changes in the rock structure, mineral composition, pore structure, and mechanical properties in the acid etching area. These changes will lead to various problems, such as the foundation of the rock’s strength and the leakage of the foundation of the rock. , Therefore, acidic liquid leakage will accelerate the erosion effect in the rock-soluble areas.…”

Section: Introductionmentioning

confidence: 99%

“…Interestingly, the release of Ca is always prior to that of Mg to reach a stable state. The analysis of the various changes, such as carbonate rock crystals, pore structure, and microcracking diversion capabilities, is usually performed from a microscopic angle. ,− Carrying out the rotating disk experiment, it was proven that the dissolution quality is positively correlated with the dissolution volume and the acid–rock reaction rate. The main controlling factors of the surface dissolution morphology in the parallel and perpendicular directions of the acid flow are the acid–rock reaction rate and mineral composition distribution, respectively.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Investigating the Acid Erosion Characteristics of Carbonate Rocks under Hydrodynamic Action

Zhang,

Chu,

et al. 2024

ACS Omega

View full text Add to dashboard Cite

In carbonate areas, the unique dissolution features bring a lot of resistance to engineering constructions. The acidic filtrate will definitely cause accelerated dissolution of the surrounding rocks, and the mechanism of accelerated dissolution of such rocks in acid is not clear. In order to explore the dissolution pattern of carbonate rocks after the alteration of their primary environments, a self-made rotating reaction device was used to conduct laboratory dissolution experiments on carbonate cores under three conditions. The mass loss, the change of pH, the molar concentration of Ca 2+ and Mg 2+ , and the morphological changes before and after acid erosion were obtained. The results of correlation analysis show that the dissolution characteristics of carbonate are significantly related to dissolution time, composition of rocks, liquid flow rate, and acid concentration. Segmented characteristics were recorded between CaO/MgO and the reaction sequence (m). When 2 < CaO/MgO < 30, the increase of CaO/MgO has a significant contribution to the chemical dissolution rate; however, when 30 < CaO/MgO < 66, the increase of CaO/MgO does not contribute significantly to the chemical dissolution rate. The dissolution rate is positively correlated with the liquid flow rate. Also, liquid flow rate changes affect dolomite more than they do limestone. The mass loss rate (R c ) order of the rocks of the five carbonate formations was Maocaopu > Qingyan > Falang > Anshun > Dengying. Differences in dissolution induced by the acidic fluids in different formations will eventually form complex dissolution channels.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigating the Acid Erosion Characteristics of Carbonate Rocks under Hydrodynamic Action

Zhang,

Chu,

et al. 2024

ACS Omega

View full text Add to dashboard Cite

show abstract

“…Considering that leachate plumes often follow specific paths determined by subsurface heterogeneity, geophysical techniques offer a more efficient approach. Geophysical methods, like 2D Electrical Resistivity Tomography (ERT), are employed to investigate contaminant plumes, locate preferential flow paths, and monitor injected chemicals for remediation [12,13]. ERT, a well-established approach, aids in assessing contaminants, landfill studies, and groundwater contaminant investigations [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Assessing leachate contamination and groundwater vulnerability in urban dumpsites: a case study of the Ipata Area, Ilorin, Nigeria

Olasunkanmi,

Ogundele,

Olayemi

et al. 2024

J. Nig. Soc. Phys. Sci.

View full text Add to dashboard Cite

This study explores the extent of leachate contamination and groundwater vulnerability in urban dumpsites, with a specific focus on the Ipata area in Ilorin, Nigeria. The study employs a combination of 2D Electrical Resistivity Tomography (ERT), soil classification, and physicochemical analyses to investigate the percolation of leachate into groundwater and its potential environmental and health implications. The ERT data unveiled subsurface layers, highlighting the presence of decomposed topsoil down to approximately 1.2m. Beneath this layer, a low-resistivity zone (6.53 to 10.7 ?m) indicated the potential risk of leachate percolation into groundwater. Soil classification revealed a shallow topsoil layer with insufficient clay content to hinder leachate penetration, emphasizing the need for enhanced containment measures. Physicochemical analysis of leachate, well water, and soil displayed variations in key parameters such as pH, electrical conductivity, total dissolved solids, and anion concentrations. Leachate exhibited high pH and electrical conductivity, suggesting elevated total dissolved solids, while well water remained within acceptable pH limits for drinking water. Heavy metal concentrations exceeded permissible WHO limits in topsoil, leachate, and well water, with cadmium presenting a high ecological risk. The absence of persistent organic pollutants (POPs) in the samples indicates a current focus on heavy metals as a primary concern. In conclusion, this study underscores the urgent need for proactive pollution abatement measures in urban dumpsites like Ipata. Regular monitoring of surface and groundwater quality is essential to safeguard public health and the environment.

show abstract

Electrical and Electromagnetic Prospecting for the Characterization of Municipal Waste Landfills: A Review

De Donno,

Melegari,

Paoletti

et al. 2024

Springer Water

View full text Add to dashboard Cite

Spatio-temporal monitoring of leachates dispersion beneath a solid wastes dump in basement complex of southwestern Nigeria

Cited by 4 publications

References 37 publications

Investigating the Acid Erosion Characteristics of Carbonate Rocks under Hydrodynamic Action

Investigating the Acid Erosion Characteristics of Carbonate Rocks under Hydrodynamic Action

Assessing leachate contamination and groundwater vulnerability in urban dumpsites: a case study of the Ipata Area, Ilorin, Nigeria

Electrical and Electromagnetic Prospecting for the Characterization of Municipal Waste Landfills: A Review

Contact Info

Product

Resources

About