Environmental concerns have resulted in the need for alternative energy efficient methods for the removal of oxides of nitrogen ~NxOy! from atmospheric gas streams and among those techniques is plasma remediation. The devices typically used as plasma sources ~corona and dielectric barrier discharges! operate in a filamentary mode which produces radicals and gas heating in narrow channels. Trans...

Metals are very common contaminants at ‘Superfund’ sites in US, and similarly contaminated sites worldwide. Long-term deposition of metals in soils can lead to accumulation, transport and biotoxicity/zootoxicity caused by mobility and bioavailability of significant fraction of the metals. Because of their immutable nature strict natural remediation processes alone may not be successful in mitig...

s of Remediation Case Studies vol 1-8(prepared for the Federal RemediationTechnologies Roundtable FRTR)www.epa.gov/tio/pubitech.htm WSRC-TR-2005-00198, Rev. 0January 5, 2006Page 147 of 147 This page intentionally left blank.

plant-based remediation (i.e. phytoremediation) is one of the most significant eco-sustainable techniques to cope with devastating consequences of pollutants. in the present study, the potential of a wetland macrophyt (i.e. potamogeton crispus ) for the phytoremediation of heavy metals (i.e. cu, cr, pb, as and cd) in the anzali wetland was evaluated. the results showed that p. crispus tends to ...

OPTIMIZATION OF COMPLEX REMEDIATION SYSTEMS Groundwater optimization and simulation is a maturing science. Research work contained in this thesis extends into areas that have not been fully explored. The incorporation of source and treatment systems selection and design produces information to help decision makers. Further insight is gained by evaluating some of the requirements and standards e...

Few studies have investigated predictors of response to cognitive remediation interventions in patients with schizophrenia. Predictor studies to date have selected treatment outcome measures that were either part of the remediation intervention itself or closely linked to the intervention with few studies investigating factors that predict generalization to measures of everyday life-skills as a...

Student performance remediation is an ongoing issue in higher education due to the need for student retention. However, remediation is costly. For example, it is estimated the total annual cost of remedial courses across all types of higher education in 1998 was between one and two billion dollars. In the current financial environment, these additional costs will likely come under increased scr...

The economic implications of regulations governing radon gas level identification and remediation in buildings are poorly understood, and attempts to address these issues have been criticised for lack of comparability. It is imperative therefore that a general model for the economic evaluation of radon remediation programmes is adopted to ensure comparability between studies and settings and to...

The uncontrolled use of chemicals, urban wastes, nuclear resources, mining, petrochemicals and disposal sewage sludge only a few anthropogenic activities that have contributed to the rapid industrialization severe heavy metal contamination soils waterways. Both inorganic organic pollutants, such as metals, pesticides, petroleum hydrocarbons, polycyclic aromatic can impact composition functional...

As noted in the Interstate Technology & Regulatory Council (ITRC) Remediation Process Optimization (RPO) Team’s first technical regulatory guidance document, Remediation Process Optimization: Identifying Opportunities for Enhanced and More Efficient Site Remediation (ITRC 2004), federal, state, and private-sector organizations will continue—for the foreseeable future—to spend billions of dollar...