Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Lucas heights solid waste landfill and downstream leachate transport—A case study in environmental geology
Summary The Lucas Heights landfill is a major solid waste disposal depot for Sydney, Australia. It is a source of pollution for Georges River estuary which supports an oyster industry and recreational fishing. The landfill is located on weathered sandstone and shale at the margin of a coastal plateau. Geophysical techniques and drilling have proved useful in defining subsurface hydrogeology. Groundwater, containing leachate, discharges as springs which feed tributaries of Georges River. Some leachate is being collected by drains and stored for treatment and it is practical for the remainder to be collected. A range of hydraulic properties have been determined and preliminary estimates of leachate quantities discharged from the site have been made using water balance accounting techniques. Variations in fill compositions of different ages have been noted. Significant methane and carbondioxide flows were detected in a three to five year old fill zone. Changes in water quality of streams leaving the site have been assessed. Downstream attenuation is a common feature, but some heavy metal and iron loadings increase due to illegal waste disposal outside the landfill. High rainfalls cause increases in leachate discharge. Landfill management practice will continue to improve as site hydrogeology is defined more closely.
Lucas heights solid waste landfill and downstream leachate transport—A case study in environmental geology
Summary The Lucas Heights landfill is a major solid waste disposal depot for Sydney, Australia. It is a source of pollution for Georges River estuary which supports an oyster industry and recreational fishing. The landfill is located on weathered sandstone and shale at the margin of a coastal plateau. Geophysical techniques and drilling have proved useful in defining subsurface hydrogeology. Groundwater, containing leachate, discharges as springs which feed tributaries of Georges River. Some leachate is being collected by drains and stored for treatment and it is practical for the remainder to be collected. A range of hydraulic properties have been determined and preliminary estimates of leachate quantities discharged from the site have been made using water balance accounting techniques. Variations in fill compositions of different ages have been noted. Significant methane and carbondioxide flows were detected in a three to five year old fill zone. Changes in water quality of streams leaving the site have been assessed. Downstream attenuation is a common feature, but some heavy metal and iron loadings increase due to illegal waste disposal outside the landfill. High rainfalls cause increases in leachate discharge. Landfill management practice will continue to improve as site hydrogeology is defined more closely.
Lucas heights solid waste landfill and downstream leachate transport—A case study in environmental geology
Knight, M. J. (Autor:in) / Leonard, J. G. (Autor:in) / Whiteley, R. J. (Autor:in)
1978
Aufsatz (Zeitschrift)
Englisch
Leachate storage lifting well for solid waste landfill
| Europäisches Patentamt | 2021