Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Acidic Flow-Induced Clogging of Permeable Reactive Barriers in Pyritic Terrain
Column experiments were conducted to select a suitable reactive material for a permeable reactive barrier (PRB) installed in a low-lying acidic floodplain located 130 km south of Sydney, Australia. Limestone (98% CaCO3) could neutralize the groundwater acidity while effectively removing excessive concentrations of Al and total Fe. A computational approach that captures coupled biochemical clogging of a granular limestone assembly was adapted to simulate the behavior of the PRB installed in the acidic terrain. At the end of bicarbonate buffering, the predicted reduction of hydraulic conductivity due to clogging at the inlet and outlet of this PRB was 45% and 33%, respectively. PRB monitoring framework was also affected by coupled clogging, which was evident from the electronic images and changes in piezometer and data logger readings.
Acidic Flow-Induced Clogging of Permeable Reactive Barriers in Pyritic Terrain
Column experiments were conducted to select a suitable reactive material for a permeable reactive barrier (PRB) installed in a low-lying acidic floodplain located 130 km south of Sydney, Australia. Limestone (98% CaCO3) could neutralize the groundwater acidity while effectively removing excessive concentrations of Al and total Fe. A computational approach that captures coupled biochemical clogging of a granular limestone assembly was adapted to simulate the behavior of the PRB installed in the acidic terrain. At the end of bicarbonate buffering, the predicted reduction of hydraulic conductivity due to clogging at the inlet and outlet of this PRB was 45% and 33%, respectively. PRB monitoring framework was also affected by coupled clogging, which was evident from the electronic images and changes in piezometer and data logger readings.
Acidic Flow-Induced Clogging of Permeable Reactive Barriers in Pyritic Terrain
Medawela, Subhani (Autor:in) / Indraratna, Buddhima (Autor:in) / Athuraliya, Senura (Autor:in)
Geo-Congress 2022 ; 2022 ; Charlotte, North Carolina
Geo-Congress 2022 ; 39-49
17.03.2022
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Acidic Flow-Induced Clogging of Permeable Reactive Barriers in Pyritic Terrain
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