Evaluation of LNAPL behavior in water table inter-fluctuate zone under groundwater drawdown condition
| Autor: | Azimi, Reza, Vaezihir, Abdorreza, Lenhard, Robert J., Majid Hassanizadeh, S., Hydrogeology, Environmental hydrogeology |
|---|---|
| Přispěvatelé: | Hydrogeology, Environmental hydrogeology |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Water pumping
lcsh:Hydraulic engineering Water table Water flow Geography Planning and Development Aquifer Soil science Aquatic Science Biochemistry lcsh:Water supply for domestic and industrial purposes sand tank LNAPL lcsh:TC1-978 Water Science and Technology Planning and Development geography lcsh:TD201-500 geography.geographical_feature_category Geography Multiphase flow groundwater level fluctuations Drawdown (hydrology) Environmental science Groundwater level fluctuations Sand tank Groundwater Water well |
| Zdroj: | Water, Vol 12, Iss 2337, p 2337 (2020) Water Volume 12 Issue 9 Water (Switzerland), 12(9). Multidisciplinary Digital Publishing Institute (MDPI) |
| ISSN: | 2073-4441 |
| Popis: | We investigate the movement of LNAPL (light non-aqueous phase liquid) into and out of monitoring wells in an immediate-scale experimental cell. Aquifer material grain size and LNAPL viscosity are two factors that are varied in three experiments involving lowering and rising water levels. There are six monitoring wells at varying distances from a LNAPL injection point and a water pumping well. We established steady water flow through the aquifer materials prior to LNAPL injection. Water pumping lowered the water levels in the aquifer materials. Terminating water pumping raised the water levels in the aquifer materials. Our focus was to record the LNAPL thickness in the monitoring wells under transient conditions. Throughout the experiments, we measured the elevations of the air-LNAPL and LNAPL-water interfaces in the monitoring wells to obtain the LNAPL thicknesses in the wells. We analyze the results and give plausible explanations. The data presented can be employed to test multiphase flow numerical models. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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