Challenges in the PFAS Remediation of Soil and Landfill Leachate: A Review
Abstract
1642 15820
Challenges in the PFAS Remediation of Soil and Landfill Leachate: A ReviewAbstract
Per- and poly-fluoroalkyl substances (PFAS) has become a big concern as a result of their high contamination in different environmental matrices. In EU countries, sites contaminated with PFAS are usually remediated by excavating soil and disposing of it in a landfill since no in-situ or on-site techniques capable of treating large quantities of soil cost-effectively have been developed. Landfilling PFAS-contaminated soil are one of the sources of PFAS to landfill leachate. In this paper, physical and chemical treat [...] 1642 15820 |
Initial Validation of a Replicated Field-scale Denitrifying Bioreactor Facility in a Boreal EnvironmentAbstract
Denitrifying bioreactor technology, where a solid carbon source (wood chips) acts as a reactive medium to intercept agricultural tile drainage water, has been successfully used to convert nitrate (NO3-) to di-nitrogen (N2) gas. Four full-size field-scale (80ft long x 10 ft. wide x 4 ft. deep), replicated wood chip bioreactors have been constructed at the St. John’s Research and Development Centre (47°30'48.080" N; 52°47'00.020" W; 110 m above mean sea level), and are successful at removing a significant amount of n [...] 911 6899 |
Evolution of Radar and Lightning Variables in Convective Events in Barcelona and Surroundings for the Period 2006–2020by
Tomeu Rigo
and
Sergi Castillo
Abstract
The Metropolitan Area of Barcelona is a very densely populated region in the NE of the Iberian Peninsula. Besides, infrastructures in the area have a concrete height in the economy of this part of Europe. The combination of the Mediterranean Sea and the complex topography plays a role in the occurrence of severe weather events in this area and its surrounding. The use of remote sensing data in an hourly resolution allows the identification and characterization of those severe episodes, helping to determine the futu [...] 942 6538 |
Linking Population and Forest Dynamics over the Conterminous US for the 1990s and 2000sby
Sheng Yang
and
Giorgos Mountrakis
Abstract
Few studies have investigated deforestation and population connections in the U.S. at large spatial extents or small scales. We examined forest cover changes over two decades, 1990-2000 and 2000-2010, in the continental U.S. at the county scale. Forest dynamics were estimated using the National Land Cover Database, a satellite-derived classification product and then linked to population data from the US. Census. At the aggregate level, high population growth seems to increase net forest loss in a non-linear manner, [...] 739 6235 |
Open Access Short Communication Impact of Covid-19 Pandemic on Air Transport: Overview and Implicationsby
Maurizio Arena
and
Claudia Aprea
Abstract
The current situation of the COVID-19 pandemic has led to multiple changes in the international market as well as in the lifestyle of people worldwide. The transport sector has undoubtedly been one of the most affected sectors due to restrictions imposed by the governments across the world to protect the health of their citizens, particularly the restrictions imposed on the operation of airlines. On the other hand, the reduction in travel by means of transport has contributed in part to the improvement in the envir [...] 3978 23709 |
Acknowlegement to Reviewers of Advances in Environmental and Engineering Research in 2020Abstract
The editors of Advances in Environmental and Engineering Research would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2020. We greatly appreciate the contribution of expert reviewers, which is crucial to the journal's editorial process. We aim to recognize reviewer contributions through several mechanisms, of which the annual publication of reviewer names is one. Reviewers receive a voucher entitling them to a discount on their next LIDSEN publication and can downlo [...] 666 4754 |
Interactions of Per- and Polyfluoralkyl Substances (PFAS) with Landfill Linersby
Will P Gates
,
Alastair JN MacLeod
,
Andras Fehervari
,
Abdelmalek Bouazza
,
Daniel Gibbs
,
Ryan Hackney
,
Damien L Callahan
and
Mathew Watts
Abstract
This review synthesises the available published research on interactions of per- and polyfluoroalkyl substances (PFAS) with landfill liners, with the view to inform on the expected behaviour of these persistent environmental pollutants in landfills. The review addresses the nature and significant types of PFAS compounds that are destined for landfills, as well as their by-product. It discusses the known and anticipated interactions with separate landfill liner components, namely geomembranes, geosynthetic clay line [...] 1821 13653 |
Electrochemical Oxidation of Perfluorooctanesulfonate by Magnéli Phase Ti4O7 Electrode in the Presence of TrichloroethyleneAbstract
This study examined the degradation of perfluorooctanesulfonate (PFOS) in electrochemical oxidation (EO) processes in the presence of trichloroethylene (TCE). The EO experiment was performed in a gas-tight reactor using Magnéli phase titanium suboxide (Ti4O 7) as the anode. The experimental data demonstrated that 75% of PFOS (2 μM) was degraded at 10 mA/cm2 current density in 30 min without TCE present in the solution, while the presence of 76 μM TCE apparently inhibited the degradati [...] 1199 8215 |
How to Prioritize Voluntary Dietary Modificationby
Gidon Eshel
Abstract
Environmentally motivated voluntary diet modifications are the focus of much research and public discourse. Yet the nuanced multi-faceted, multi-dimensional nature of agriculture-earth interactions, and limited public environmental knowledge likely combine to undermine the efficacy of environmentally motivated dietary shifts, squandering limited good will. To counter this, here I devise two related indices for crudely estimating importance of various environmental impacts of alternative dietary choices. Based on th [...] 1011 7356 |
Climate Cloud Model Forecast Verification-an Engineering Perspectiveby
Barbara Iisager
and
Keith D Hutchison
Abstract
The processes relevant to the verification of cloud forecasts generated by climate models are discussed from an engineering perspective. These processes include an assessment of cloud product requirements to be evaluated, the creation of a verification test plan including procedures and data to be analyzed, the development of independent sources of validation or truth datasets, and the quantitative comparisons between the cloud forecast products and the truth data needed to establish model performance. The engineer [...] 1192 7094 |
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