Liner design for waste disposal sites

Bouazza, Abdelmalek; Impe, William F. Van

doi:10.1007/s002540050291

Cited by 25 publications

(14 citation statements)

References 10 publications

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“…Cut off wall have been employed for decades to control groundwater and contaminant transport in the subsurface. Numerous studies on methods and materials used to construct such barriers are available in the literature (Manassero et al 1995;Van Impe and Bouazza 1998;ICE 1999;Bouazza et al 1999;Opdyke and Evans 2005) and can be consulted for further information on cut off walls.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Some Hydraulic Properties of Slime Slurries from Sand Mining Pits Using a Modified Triaxial Cell

Bouazza

Haque

Wang³

2008

Geotech Geol Eng

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The generation of massive volume of slimes from sand mining industry ascertains the need for effective waste treatment. The application of slimes in landfill barrier construction works has been identified as one of the processes that can be used to reduce their volume, enabling in this way the rehabilitation of dangerous sites. This article presents a modified triaxial cell specially built to investigate high water content soils and discusses the results obtained from the investigation of the hydraulic properties of two slimes. The results of laboratory filter cake tests show that the slimes have reasonably good sealing capacities due to the formation of a cake layer on other porous materials upon draining. A relatively low hydraulic conductivity (1.5-3 9 10 -9 m/s) was achieved, once the cake layer was formed. This is close to the prescribed 1 9 10 -9 m/s required by the local environmental governmental authority for a landfill hydraulic barrier material, indicating their potential suitability as landfill barrier.

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Section: Introductionmentioning

confidence: 99%

Assessment of Some Hydraulic Properties of Slime Slurries from Sand Mining Pits Using a Modified Triaxial Cell

Bouazza

Haque

Wang³

2008

Geotech Geol Eng

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“…These solid wastes consisted of commercial and industrial wastes, construction and demolition wastes and MSWs (Goldsworthy, 2010;Perryman and Green, 2017). The leachates produced by these wastes contain multiple pollutants (O'Kelly, 2016), which can prove to be potentially harmful to the environment (Bouazza and Van Impe, 1998;Daniel, 1993). Therefore, the problems of safe handling, storage and disposal of wastes become very daunting challenges faced by landfills (Hoyos et al, 2015), as well as other waste containment facilities such as tailing dams, leachate collection ponds, sump wells and underground storage tanks (Rowe, 2012;Sharma and Reddy, 2004;Shukla and Yin, 2006).…”

Section: Introductionmentioning

confidence: 99%

Resistivity profiles of Perth soil in Australia in leak-detection test

Pandey

Shukla

Habibi

2017

Geotechnical Research

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The use of a suitable leak-detection system for the prevention and mitigation of pollution due to lining system failures is integral to the proper management of landfill facilities. This paper briefly summarises various methods of leak detection that are currently being practised. The details of a newly developed leak-detection technique are also presented. The tests were conducted to evaluate the performance of the new technique by use of controlled leakage. The resulting resistivity profiles for Perth soil in Australia were obtained at 10 min. This method is found to be effective in detecting and locating liner leakage issues within 30 min from the instant when the defect develops. The electrical resistivity decreases with an increase in the leakage duration. The resistivity was found to increase with an increase in the distance/depth from the leak point. Installation of this innovative detection system below liners can enable the various waste containment facilities, such as landfills and leachate ponds, to monitor the lining systems and in case of failures, to take timely action for hazard mitigation. Results presented in this study can be useful for further development of sensors for leakage detection in lining systems. NotationA cross-sectional area of the specimen: m 2

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“…In order to avoid the moving fine tailings particles blocking the holes in the perforated pipes, the filter soil layer locates over the gravel layer. With the compound liner system, the fluid would encounter a waterproof medium, thus avoiding contaminating the environment (such as groundwater, surface water and soil) [20]. The fluid collection system can control the water balance in the tailings storage facilities to avoid dam failures, and prevent the reaction of iron sulphides with water and oxygen to produce AMD.…”

Section: Improvement Of Traditional Mining Tailings Storage Facilitiesmentioning

confidence: 99%

“…Following this principle, traditional tailings storage facilities are designed with barrier systems including a vertical drainage system, a compound liner system, a fluid collection system and a caps system. The compound liner system [20] (see Figure 1) consists of a compacted clay layer, a geomembrane layer, a gravel layer, fluid collection pipes and a filter soil layer. The compacted clay layer locates at the bottom in contact with the soil, the geomembrane layer locates over the compacted clay layer, the gravel layer locates over the geomembrane layer, and perforated pipes for collecting fluid are deployed in the gravel layer.…”

Section: Improvement Of Traditional Mining Tailings Storage Facilitiesmentioning

confidence: 99%

Improvement of Traditional Mining Tailings Storage Facilities

Wang¹,

Zhao²,

Li³

et al. 2016

JRST

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ABSTRACT:Traditional mining tailings storage facilities may generate calamities and contaminants that cause the infiltration of tailings dam and even lead to dam failures. In view of this, new tailings storage facilities are designed in this paper by combining traditional tailings storage facilities with barrier systems including a vertical drainage system, a compound liner system, a fluid collection system and a caps system. With the vertical drainage system, water in contact with tailings can be transported into the fluid collection system. With the compound liner system, fluid can find a waterproof environment, which prevents the contamination of the environment such as surface water, groundwater, soil and food chain. With the fluid collection system, water in contact with tailings and fluid can be collected and removed to wastewater treatment plants, thus avoiding dam failure and aMD generation caused by the reaction of iron sulphides with water and oxygen.

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Liner design for waste disposal sites

Cited by 25 publications

References 10 publications

Assessment of Some Hydraulic Properties of Slime Slurries from Sand Mining Pits Using a Modified Triaxial Cell

Assessment of Some Hydraulic Properties of Slime Slurries from Sand Mining Pits Using a Modified Triaxial Cell

Resistivity profiles of Perth soil in Australia in leak-detection test

Improvement of Traditional Mining Tailings Storage Facilities

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