USE OF GEOSYNTHETIC CLAY LINER AS A WATERPROOFING BARRIER IN SANITARY LANDFILLS
One of the main sources of soil and water (superficial and subterranean) contamination is the inadequate solid waste disposal. In this sense, sanitary landfills have great importance for environmental protection, and in these systems, the geosynthetics materials, such as the Geosynthetic Clay Liner...
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| Veröffentlicht in: | Journal of Urban and Environmental Engineering 2019, Vol.13 (1), p.115-124 |
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| creator | Visentin, Caroline Zanella, Pedro Nicola Kronhardt, Bruna Koppe Trentin, Adan William da Silva Braun, Adeli Beatriz Thomé, Antônio |
| description | One of the main sources of soil and water (superficial and subterranean) contamination is the inadequate solid waste disposal. In this sense, sanitary landfills have great importance for environmental protection, and in these systems, the geosynthetics materials, such as the Geosynthetic Clay Liner (GCL), are widely employed. However, for landfills with leachate recirculation, the application of GCL is vetoed by many government agencies. In view of this, this study sought to provide an analysis of recent advances in application of GCL in landfill sites. For this reason, the main configurations of landfills and characteristics of its leachate were presented, as well as of the GCL by means of case studies applied to the context. The results indicated that the most important parameter to be evaluated in GCL performance is its hydraulic conductivity, which can be influenced directly by leachate composition (conventional and recirculated) as to the presence of cations and anions. Thus, it is concluded that the evaluation of these characteristics is essential to ensure the proper performance of GCL in landfills. |
| doi_str_mv | 10.4090/juee.2019.v13n1.115124 |
| format | Article |
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In this sense, sanitary landfills have great importance for environmental protection, and in these systems, the geosynthetics materials, such as the Geosynthetic Clay Liner (GCL), are widely employed. However, for landfills with leachate recirculation, the application of GCL is vetoed by many government agencies. In view of this, this study sought to provide an analysis of recent advances in application of GCL in landfill sites. For this reason, the main configurations of landfills and characteristics of its leachate were presented, as well as of the GCL by means of case studies applied to the context. The results indicated that the most important parameter to be evaluated in GCL performance is its hydraulic conductivity, which can be influenced directly by leachate composition (conventional and recirculated) as to the presence of cations and anions. Thus, it is concluded that the evaluation of these characteristics is essential to ensure the proper performance of GCL in landfills.</description><identifier>ISSN: 1982-3932</identifier><identifier>EISSN: 1982-3932</identifier><identifier>DOI: 10.4090/juee.2019.v13n1.115124</identifier><language>eng</language><publisher>Jao Pessoa: Journal of Urban and Environmental Engineering</publisher><subject>Anions ; Cations ; Clay ; Contamination ; Environmental protection ; Geosynthetics ; Government agencies ; Hydraulics ; Hydrocarbons ; Laboratories ; Landfill ; Landfills ; Leachates ; Performance evaluation ; Sanitary landfills ; Sediment pollution ; Shear strength ; Soil ; Soil contamination ; Soil pollution ; Soil water ; Soils ; Waste disposal ; Waste disposal sites ; Waste management industry ; Water pollution ; Waterproofing</subject><ispartof>Journal of Urban and Environmental Engineering, 2019, Vol.13 (1), p.115-124</ispartof><rights>2019. 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In this sense, sanitary landfills have great importance for environmental protection, and in these systems, the geosynthetics materials, such as the Geosynthetic Clay Liner (GCL), are widely employed. However, for landfills with leachate recirculation, the application of GCL is vetoed by many government agencies. In view of this, this study sought to provide an analysis of recent advances in application of GCL in landfill sites. For this reason, the main configurations of landfills and characteristics of its leachate were presented, as well as of the GCL by means of case studies applied to the context. The results indicated that the most important parameter to be evaluated in GCL performance is its hydraulic conductivity, which can be influenced directly by leachate composition (conventional and recirculated) as to the presence of cations and anions. 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| ispartof | Journal of Urban and Environmental Engineering, 2019, Vol.13 (1), p.115-124 |
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| source | EZB-FREE-00999 freely available EZB journals |
| subjects | Anions Cations Clay Contamination Environmental protection Geosynthetics Government agencies Hydraulics Hydrocarbons Laboratories Landfill Landfills Leachates Performance evaluation Sanitary landfills Sediment pollution Shear strength Soil Soil contamination Soil pollution Soil water Soils Waste disposal Waste disposal sites Waste management industry Water pollution Waterproofing |
| title | USE OF GEOSYNTHETIC CLAY LINER AS A WATERPROOFING BARRIER IN SANITARY LANDFILLS |
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