2 Chemical desorption from soil and sediment is of central importance to most environmental concerns including remediation. Des-orption affects chemical fate, toxicity, and associated risk to human and aquatic life as well as the efficiency of most remediation technologies. Desorption is commonly mod-eled as a reversible partitioning process in fate, risk, and remediation models. However, the r...

Ultimately, hundreds of billions of dollars of public and private funds will be spent in the US in hazardous chemical site (Superfund and closed RCRA facilities) investigation and remediation. A critical review of the adequacy of remediation of many of these sites that are “closed” in accord with RCRA and/or CERCLA requirements as being interpreted by regulatory agency staff/boards and principl...

In this paper we examine the relation between technologies that aim to remediate pollution and moral responsibility. Contrary to the common view that successful remediation technologies will permit the wheels of industry to turn without interruption, we argue that such technologies do not exculpate polluters of responsibility. To make this case, we examine several environmental and non-environm...

Calculations are reported for ambient dose equivalent rates [H˙*(10)] at 1 m height above the ground surface before and after remediating radiocesium-contaminated soil at wide and open sites. The results establish how the change in H˙*(10) upon remediation depends on the initial depth distribution of radiocesium within the ground, on the size of the remediated area, and on the mass per unit are...

The importance of treatment of cognitive impairments of people with schizophrenia has long been established. Among many pharmaceutical and non-pharmaceutical approaches, cognitive remediation offers one of the best promises for the rehabilitation of cognitive impairments of schizophrenia. The purpose of this paper is to introduce one such approach, the Neuropsychological Educational Approach to...

Innovative technologies for subsurface remediation, including in situ techniques based on heating the subsurface to enhance the recovery of organic contaminants, are increasingly being evaluated for use at specific sites as the limitations to the conventionally-used techniques are recognized. The purpose of this Issue Paper is to provide to those involved in assessing remediation technologies f...

PURPOSE To identify deficit types and predictors of poor academic outcomes among students, residents, fellows, and physicians referred to the University of Colorado School of Medicine's remediation program. METHOD During 2006-2012, 151 learners were referred. After a standardized assessment process, program faculty developed individualized learning plans that incorporated deliberate practice,...

This summary paper reviews just some of the extensive scientific literature from the past 20 years on the various aspects of contaminant source remediation and plume management. Some of the major findings of the numerous research projects are presented. The first section outlines the controlling mass transfer mechanisms which need to be considered for any in situ source remediation technology. ...

Self-sustaining treatment for active remediation (STAR) is an innovative soil remediation approach based on smoldering combustion that has been demonstrated to effectively destroy complex hydrocarbon nonaqueous phase liquids (NAPLs) with minimal energy input. This is the first study to explore the smoldering remediation of sand contaminated by a volatile NAPL (trichloroethylene, TCE) and the fi...

This study presents the experimental remediation studies of diesel contaminated soil with Sodium Deducible Sulfate (SDS) as surfactants using column tests. Sandy selected soil had the grain size distribution of # 40 meshes to the # 200 mesh range. The soil columns were contaminated with adequate diesel amount to achieve the concentration of 10000 and 20000 ppm in soil. 0.1, 0.2, 0.3, 0.4 percen...