Utilization of waste products as alternative landfill liner and cover materials – A critical review

Rubinos, David A.; Spagnoli, Giovanni

doi:10.1080/10643389.2018.1461495

Cited by 63 publications

(13 citation statements)

References 148 publications

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“…Even though the clay liner is sufficient, the vulnerable rock joint and debris layers should be considered. The utilization of waste products is an alternative for the landfill cover and liner [28]. The site should have a geomembrane added between the drainage layer and the clay liner layer as shown in Figure 10, which can increase the security of the landfill.…”

Section: Conclusion and Recommendationsmentioning

confidence: 99%

Assessment of Geological, Hydrogeological and Geotechnical Characteristics of a Proposed Waste Disposal Site: A Case Study in Khon Kaen, Thailand

et al. 2020

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Occasionally, a selected site suitable for landfill construction is severely protested against by locals. This issue can cause the proposed landfill to be relocated to an environmentally sensitive area. The proposed Khon Kaen waste disposal site has been planned as an integrated municipal solid waste management system, although the site is situated in an environmentally sensitive area. A site assessment can guarantee the suitability of waste disposal construction, with procedures that aim to assess the potential of geological and hydrogeological characteristics, geological barriers, geotechnical properties of material for landfill construction and groundwater conditions for future monitoring of such facilities. The study area is located on foothills where no geohazard or seismic impacts have been recorded. The geology is composed of sandstone, siltstone, and mudstone bedrocks mostly overlain by unconsolidated sediments. The natural geological barriers are clay and regolith. The clay layer lies locally and is rather thin, at around 2–3 m thickness. The study area is situated in an area that is highly vulnerable to groundwater pollution. The distinct weaknesses of this site along the foothill are a prominent transport path of shallow flows; high groundwater fluctuation, especially during the rainy season; that it is a recharge area with a high fracture zone; and the high permeability of colluvium. The material characteristics in the site make it suitable for use as landfill cover and liner. Following compaction, the coefficient of permeability ranges from 1.2 × 10−7 to 7.1 × 10−7 cm/s, which is acceptably impervious.

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Section: Conclusion and Recommendationsmentioning

confidence: 99%

Assessment of Geological, Hydrogeological and Geotechnical Characteristics of a Proposed Waste Disposal Site: A Case Study in Khon Kaen, Thailand

et al. 2020

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“…Compacted soils have been utilized for many years as single or composite liner materials in solid waste containment facilities. Composite barrier systems are comprised of a geomembrane overlying either a CSL or GCL or both [41][42][43]. In the last few decades, their application as composite liners has gained widespread popularity in optimizing liner system properties.…”

Section: Classificationmentioning

confidence: 99%

“…Landfills are well-engineered facilities, designed and constructed to impound municipal, hazardous, industrial, construction and demolition waste materials as well as coal combustion residuals, among other things [42,84,85]. Modern landfills have liner systems incorporated to prevent the pollution of groundwater and the surrounding environment by the contaminants generated by the waste deposited on them [5,39].…”

Section: Engineered Landfillsmentioning

confidence: 99%

A critical reappraisal of residual soils as compacted soil liners

2019

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Compacted residual soils are often used as liner materials in engineered landfills, tailings dams, solar ponds, and canals, etc. to minimize the migration of contaminants into the surrounding environment and groundwater. To date, there has not been an extensive and adequate review of the suitability of different residual soil types for use as compacted liner materials. This paper reviews the suitability, merits, demerits, and possible applications of using expansive and lateritic residual soils as compacted soil liners. The review is then complemented by a study of the geotechnical properties of lateritic residual and shrinkable soils from Peninsular Malaysia. Suitability was assessed based on engineering property data for both soil types, collected from various journal papers, workshops, proceedings of conferences, and symposia from around the world. These properties were then compared with the standard requirements for use as liner materials. Descriptive statistics were employed to better assess the individual criteria of using both residual soil types as compacted soil liners. The results indicate that expansive and lateritic soils can be effectively utilized as liner materials if more acceptable materials are not readily available. The study addresses untreated soils but does not discuss the stabilization aspects.

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“…If not properly managed, municipal solid waste will cascade into multiple crises, affecting people's health and the ecological environment (Gu et al 2017). Landfilling is the predominant waste disposal method in China, accounting for 60.16%, whereas incineration, untreated discharge, and other treatments comprise 29.84%, 8.21%, and 1.79% of disposal, respectively (Rubinos and Spagnoli 2018). China's waste recycling rate is less than 2%, which is far below the average rate in developed countries with robust recycling systems (Mian et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Energy conservation and carbon reduction potential for solid waste in China

Wang

et al. 2020

Environ Sci Pollut Res

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The generation of solid waste has increased dramatically in China, owing largely to the rapid development and expansion of the Chinese economy. The management of solid waste is critical and becoming a challenge for some cities in China. Waste recycling is an effective solution to solid waste management and seeks to balance ecological sustainability with economic improvements. This study assessed the energy conservation and CO 2 emission reduction potential of solid waste using an embodied energy/ carbon model from a life cycle perspective. The results showed that compared with the production of virgin materials, solid waste recycling results in a reduction of 294.2 Mtce in energy consumption, and 614.5 Mt in CO 2 emission is shown in 2017. The recycling of steel waste was the highest contributor, accounting for more than 45% of energy conservation and at least 62% of CO 2 reduction. If 100% recycling of recyclable waste like steel waste and plastic waste can be achieved, energy conservation and CO 2 reduction could reach 551.89 Mtce and 933.69 Mt, respectively, accounting for 12.29% of energy consumption and 8.46% of CO 2 emission. A robust recycling system must be established to achieve the purpose of environment production and resource conservation. The proposed evaluation framework could help in the decision-making process. The waste classification must be promoted to increase waste recovery rate and improve waste reproduction technology to maximize energy conservation and CO 2 emission reduction.

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Utilization of waste products as alternative landfill liner and cover materials – A critical review

Cited by 63 publications

References 148 publications

Assessment of Geological, Hydrogeological and Geotechnical Characteristics of a Proposed Waste Disposal Site: A Case Study in Khon Kaen, Thailand

Assessment of Geological, Hydrogeological and Geotechnical Characteristics of a Proposed Waste Disposal Site: A Case Study in Khon Kaen, Thailand

A critical reappraisal of residual soils as compacted soil liners

Energy conservation and carbon reduction potential for solid waste in China

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