Influence of Compact Clay Layer on the Seepage Performance of the Municipal Solid Waste Landfills

2014 ◽  
Vol 908 ◽  
pp. 503-506
Author(s):  
Jing Jing Fan
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Clay Layer ◽  
Municipal Solid Waste Landfill ◽  
Waste Landfill ◽  
Low Leakage ◽  
Liner System ◽  
Compact Clay ◽  
Municipal Solid Waste Landfills ◽  
Solid Waste Landfills

The pollutants in the municipal solid waste landfill leachate result in severe damage to the environment of the groundwater and the soil beneath the municipal solid waste landfill. The liner systems with a low leakage performance are commonlly adopted under the municipal solid waste landfills to stop the contaminants of the leachate from polluting the environment. Even there are the rigorous demands in related specifications for the design of the liner system in the landfill. Pollution of the groundwater and the soil beneath the landfill still occurred in a large number of rubbish landfills because of the seepage. To investigate the influence of the compact clay layer (CCL) on the seepage performance of the liner systems, parametric analyses are conducted to study the influence of the thickness of CCL and the hydraulic conductivity of CCL on the leakage performance of the liner system. In conclusion, some suggestions for the design of the municipal solid waste landfills are proposed based on the analyses results.

Assessment of a residual municipal solid waste landfill for prospective ‘landfill mining’

2019 ◽  
Vol 37 (12) ◽  
pp. 1229-1239 ◽  
Author(s):  
J Faitli ◽  
S Nagy ◽  
R Romenda ◽  
I Gombkötő ◽  
L Bokányi ◽  
...  
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Dry Mass ◽  
Waste To Energy ◽  
Municipal Solid Waste Landfill ◽  
Horizon 2020 ◽  
Waste Landfill ◽  
Landfill Mining ◽  
Sampling Campaign ◽  
Municipal Solid Waste Landfills

Landfill mining is a prospective tool for the recycling of valuable materials (waste-to-material) and secondary fuel (waste-to-energy) from old, therefore more or less stabilised municipal solid waste landfills. The main target of Horizon 2020 ‘SMARTGROUND’ R&D was improving the availability and accessibility of data and information from both urban landfills and mining dumps through a set of activities to integrate all the data – from existing sources and new information retrieved with time progress – in a single EU database. Concerning urban landfills, a new sampling protocol was designed on the basis of the current Hungarian national municipal solid waste analysis standards, optimised for landfill mining. This protocol was then applied in a sampling campaign on a municipal solid waste landfill in Debrecen, Hungary. The composition and parameters of the landfilled materials were measured as a 12-year timescale. The total wet and dry mass of the valuable components possible for utilisation was estimated.

Contaminant Trasportation of Cd2+ in the Cushion System of the Municipal Waste Landfill

2014 ◽  
Vol 908 ◽  
pp. 499-502
Author(s):  
Jing Jing Fan
Keyword(s):  
Clay Layer ◽  
Compacted Clay ◽  
Design Standards ◽  
Seepage Rate ◽  
Waste Landfill ◽  
Low Leakage ◽  
The World ◽  
Minimum Requirements ◽  
Municipal Solid Waste Landfills ◽  
Solid Waste Landfills

The cushion systems with low leakage performance are usually utilized in the municipal solid waste landfills to prevent the contaminants of the leachate from polluting the groundwater and soil beneath the landfill. Even there are the rigorous demands in related specifications in China and other countries all over the world for the design of the cushion system in the landfill. Pollution of the groundwater and the soil beneath the landfill still occurred in a large number of rubbish landfills because of the seepage. To investigate the seepage rate of the Cd2+ in the cushion systems, the minimum requirements for the design of the cushion systems are summarized according to the provisions of China and US. Comparative studies using 1-dimensional migration model are performed to investigate the seepage performance of the cushion systems consisting of geomembrance (GM) and compacted clay layer (CCL) sastifying the related minimum design demands. It could be concluded that the cushion system designed according to the minimum demands of China provide better anti-leakage performance, while that of US perform the lower. Finally, some advices for the releavent design standards are suggested according to the analyses.

Effects of Geomembrance on the Contaminant Transport in Compacted Clay Liner System

2014 ◽  
Vol 989-994 ◽  
pp. 1208-1211 ◽  
Author(s):  
Jing Jing Fan
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Compacted Clay ◽  
Seepage Rate ◽  
Clay Liner ◽  
Compacted Clay Liner ◽  
State Process ◽  
Liner System ◽  
Municipal Solid Waste Landfills ◽  
Solid Waste Landfills

An analytical model is established to predict the seepage performance of the liner system composed of a compacted clay liner (CCL) covered by a geomembrane (GM). The contaminant of Pb2+diffusing through the geomembrane is assumed to be a steady-state process. The liner systems with low leakage performance are usually utilized in the municipal solid waste landfills to prevent the contaminants of the leachate from polluting the groundwater and soil beneath the landfill. To investigate the seepage rate of the Pb2+in the liner systems of the landfill considering the effects of the geomembrance, the influence of the geomembrance on the seepage performance of the liner system is studied. Parametric analyses are conducted to study the effects of the thickness of GM and the number of defects in the GM on the leakage performance of the liner system. In conclusion, some suggestions for the design of the municipal solid waste landfills are proposed based on the analyses results.

Municipal solid waste landfills biogas utilization

2019 ◽  
Vol 57 ◽  
pp. 192-202
Author(s):  
A Yurchenko ◽  
◽  
D Kulikova ◽  
E Dmitruk ◽  
L Cheberiachko ◽  
...  
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Municipal Solid Waste Landfills ◽  
Solid Waste Landfills
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