Permeable reactive barriers are a technology that is one decade old, with most full-scale applications based on abiotic mechanisms. Though there is extensive literature on engineered bioreactors, natural biodegradation potential, and in situ remediation, it is only recently that engineered passive bioreactive barrier technology is being considered at the commercial scale to manage contaminated ...

INTRODUCTION Remediating failing medical learners has traditionally been a craft activity responding to individual learner and remediator circumstances. Although there have been moves towards more systematic approaches to remediation (at least at the institutional level), these changes have tended to focus on due process and defensibility rather than on educational principles. As remediation pr...

A fuzzy simulation-based optimization approach FSOA is developed for identifying optimal design of a benzene-contaminated groundwater remediation system under uncertainty. FSOA integrates remediation processes i.e., biodegradation and pump-and-treat , fuzzy simulation, and fuzzy-mean-value-based optimization technique into a general management framework. This approach offers the advantages of 1...

phytoextraction is a remediation technology that uses plants to remove heavy metals from soil. the success of a phytoextraction process depends on adequate plant yield (aerial parts) and high metal concentrations in plant shoots. a pot experiment was conducted to investigate the combination effects of plants [sunflower (helianthus annuus) and canola (brassica napus)] with soil treatments (manur...

Despite two decades of intensive research on using metallic iron (Fe) for environmental remediation and water treatment, basic concerns about their efficiency still prevail. This communication presents the basic idea of the view that challenges the prevailing paradigm on the operating mode of Fe/H2O systems. The alternative paradigm is in tune with the mainstream science on aqueous iron corrosi...

The electronic networking of physical space promises wide-ranging advances in science, medicine, delivery of services, environmental monitoring and remediation, industrial production, and the monitoring of persons and machines. It can also lead to new forms of social interaction [..]. However, without appropriate architecture and regulatory controls it can also subvert democratic values. Inform...

The Dounreay nuclear site, located on the north coast of Scotland, was responsible for the accidental release of an unknown quantity of approximately sand-sized fragments of irradiated nuclear fuel during the 1960’s and 1970’s. In the last decade, major research programmes were carried out by UKAEA and contractors to detect and remove the particles from both local beaches and from the offshore ...

Environmental pollution remains one of the most serious world problems. Great efforts are made to limit release harmful compounds into environment, and a variety methods for remediation soil, surface water, groundwater have been developed over years. Chemical technologies great interest since they can remove degrade pollutants in contaminated sites. This paper focuses on several chemical techno...

Pollution from numerous contaminants due to many anthropogenic activities affects soils quality. Industrialized countries have contaminated sites; their remediation is a priority in environmental legislation. The aim of this overview consider the evolution soil consolidated invasive technologies environmentally friendly green strategies. selection technology no longer exclusively based on elimi...