This paper presents an analysis of the site restoration techniques that may be employed in a variety of contaminated site cleanup programs. It is recognized that no single specific technology may be considered as a panacea for all contaminated site problems. An easy-to-use summary of the analysis of the important parameters that will help in the selection and implementation of one or more appro...

s of Remediation Case Studies: EPA 542-R-95-001, Documents project design, operation, performance, cost, and lessons learned. The reports should be useful to those evaluating the feasibility or design of these technologies at similar sites. [clu-in.com] Bioremediation Field Initiative Site Profiles. Current information on the status of bioremediation nationally as well as information on sites w...

Innovative monitoring probes based on a diffusion cell concept (Barber and Briegel, 1987) have been developed to provide in situ, undisturbed and on-line measurements of parameters of interest under variably-saturated conditions during remediation and contaminant monitoring. Probes for oxygen and volatile organic compounds (VOCs) have been tested in three field trials of in situ remediation; tw...

An instrumentation system consisting of driven well-points, instrumentation bundles, and discrete sampling has been developed for monitoring subsurface conditions during the operation of air injection remediation systems. The driven well points provide intimate contact reducing the impact on the remediation process. The instrumentation bundles afford continuous monitoring of subsurface conditio...

This paper gives a review of established and emerging technologies for the treatment of wastes and soils contaminated by Persistent Toxic Substances which include the Persistent Organic Pollutants. The technologies are classified as biological, physico-chemical, and thermal treatments, describing main unit operations and comparing technical, social and environmental limitations, including some ...

Soil pollution with heavy metals draws a serious concern because of their detrimental effects on the living biota. The persistent and non-biodegradable nature of heavy metals eases their accumulation in the environment. Agricultural soils are receiving tremendous amount of pollutants from the various sources. During the last few decades, rapid urbanization, industrialization, injudicious and fa...

The remediation of contaminated soil and groundwater is essential toward the development of a sustainable society. However, remediation activities at various stages will also inherently add a significant burden of environmental footprints. Green remediation is thus increasingly recognized in the recent years by various regulatory agencies, responsible parties, remediation engineers, and various...

Electrokinetically enhanced remediation is an innovative technology that has the potential to remediate hydrophobic organic compound (HOC) contamination in soils and groundwater. A surfactant/cosolvent is used to increase HOC desorption and solubilization, and an applied electric potential facilitates contaminant transport primarily by electroosmosis and/or electrophoresis. Electroosmotic flow ...

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...

This paper reviews the development of ex-situ soil treatment technologies over the last 20 years, against the background of developing legislation and market forces. Legislation along the lines of site remediation, soil treatment, landfilling and reuse was developed and improved in the eighties and nineties. In addition, substantial budgets were made available by the national government to tack...