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Full-Text Articles in Engineering

Towards Characterizing Lnapl Remediation Endpoints, Kaveh Sookhak Lari, John L. Rayner, Greg B. Davis Jan 2018

Towards Characterizing Lnapl Remediation Endpoints, Kaveh Sookhak Lari, John L. Rayner, Greg B. Davis

ECU Publications Post 2013

Remediating sites contaminated with light non-aqueous phase liquids (LNAPLs) is a demanding and often prolonged task. It is vital to determine when it is appropriate to cease engineered remedial efforts based on the long-term effectiveness of remediation technology options. For the first time, the long term effectiveness of a range of LNAPL remediation approaches including skimming and vacuum-enhanced skimming each with and without water table drawdown was simulated through a multi-phase and multi-component approach. LNAPL components of gasoline were simulated to show how component changes affect the LNAPL's multi-phase behaviour and to inform the risk profile of the LNAPL ...


Field-Scale Multi-Phase Lnapl Remediation: Validating A New Computational Framework Against Sequential Field Pilot Trials, Kaveh Sookhak Lari, Colin Johnson, John Rayner, Greg Davis Jan 2018

Field-Scale Multi-Phase Lnapl Remediation: Validating A New Computational Framework Against Sequential Field Pilot Trials, Kaveh Sookhak Lari, Colin Johnson, John Rayner, Greg Davis

ECU Publications Post 2013

Remediation of subsurface systems, including groundwater, soil and soil gas, contaminated with light non-aqueous phase liquids (LNAPLs) is challenging. Field-scale pilot trials of multi-phase remediation were undertaken at a site to determine the effectiveness of recovery options. Sequential LNAPL skimming and vacuum-enhanced skimming, with and without water table drawdown were trialled over 78 days; in total extracting over 5 m3 of LNAPL. For the first time, a multi-component simulation framework (including the multi-phase multi-component code TMVOC-MP and processing codes) was developed and applied to simulate the broad range of multi-phase remediation and recovery methods used in the field trials ...


Developing Equations For Estimating Reference Evapotranspiration In Australia, Matin Ahooghalandari, Mehdi Khiadani, Mina Esmi Jahromi Jan 2016

Developing Equations For Estimating Reference Evapotranspiration In Australia, Matin Ahooghalandari, Mehdi Khiadani, Mina Esmi Jahromi

ECU Publications Post 2013

Quantifying reference evapotranspiration (ET0) is essential in water resources management. Although, many methods have been developed with different level of accuracy, in this study, two new equations were developed and optimized for estimating ET0 using Honey-Bee Mating Optimization (HBMO) algorithm. The firs eq. estimates ET0 from extraterrestrial radiation (Ra), relative humidity (RH) and mean daily temperature (Tmean), while the second uses the same parameters except that mean daily temperatures is replaced with maximum daily air temperature (Tmax). Both equations were developed using climatic data from eight weather stations in Western Australia and subsequently verified ...