Stepwise pumping approach to improve free phase light hydrocarbon recovery from unconfined aquifers

Landfill Leachate Migration through Shallow Unconfined Aquifers

Abstraction, desalination and recharge method to control seawater intrusion into unconfined coastal aquifers

In this study, abstraction, desalination and recharge method and SEAWAT numerical model are used to investigate seawater intrusion repulsion in a hypothetical two-dimensional coastal aquifer to understand the relation of seawater intrusion with abstraction, desalination and recharge parameters (i.e. abstraction/recharge rate, wells distance and depth). Abstraction, desalination and recharge con...

Watertable waves in unconfined aquifers: sloping boundary effects

Watertable waves generated by forcing from oceanic oscillations play an important role in the availability and quality of coastal groundwater resources. Here we present results from laboratory experiments which examine the influence of a boundary slope on the mass transfer from an oscillating clear water reservoir into a homogeneous, unconfined aquifer. The experimental forcing period is suffic...

Capillary effect on watertable fluctuations in unconfined aquifers

Jun Kong, Cheng-Ji Shen, Pei Xin, Zhiyao Song, Ling Li, D.A. Barry, D.-S. Jeng, F. Stagnitti, D.A. Lockington and J.-Y. Parlange 1 State Key Laboratory for Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, China 2 National Center for Groundwater Research and Training, School of Civil Engineering, The University of Queensland, Queensland, Australia 3 Key Laboratory ...

A steam Rankine cycle with two-stage pumping to enhance the waste heat recovery from internal combustion engines

In this research, a high-temperature Rankin cycle (HTRC) with two-stage pumping is presented and investigated. In this cycle, two different pressures and mass flow rates in the HTRC result in two advantages. First, the possibility of direct recovery from the engine block by working fluid of water, which is a low quality waste heat source, is created in a HTRC. Secondly, by doing this, the mean ...