Remediation methods for contaminated sites cover a wide range of technical solutions with different remedial efficiencies and costs. Additionally, they may vary in their secondary impacts on the environment i.e. the potential impacts generated due to emissions and resource use caused by the remediation activities. More attention is increasingly being given to these secondary environmental impac...

PCB and Heavy Metal Soil Remediation, Former Boat Yard, South Dartmouth Massachusetts. Michael E. Martin & Marc J. Richards, Tighe & Bond Consulting Engineers. Heavy metals have been added to marine paint for more than 100-years to protect boats from biological, chemical and physical degradation. Polychlorinated biphenyls (PCBs) were added to marine paint starting in the 1940’s to give the pain...

during the last decade, the expansion of urbanization and industrial activities caused serious environmental problems such as soil pollution. novel technologies are required to remediate soil contamination with toxic contaminants, including heavy metals and organic pollutants. in recent years, there have been increasing attempts to improve soil remediation efficiency. electrokinetic (ek) is an ...

Thermal remediation of the soil contaminated with crude oil using microwave heating enhanced by carbon fiber (CF) was explored. The contaminated soil was treated with 2.45 GHz microwave, and CF was added to improve the conversion of microwave energy into thermal energy to heat the soil. During microwave heating, the oil contaminant was removed from the soil matrix and recovered by a condensatio...

BACKGROUND Assessment of soil arsenic (As) bioavailability may profoundly affect the extent of remediation required at contaminated sites by improving human exposure estimates. Because small adjustments in soil As bioavailability estimates can significantly alter risk assessments and remediation goals, convenient, rapid, reliable, and inexpensive tools are needed to determine soil As bioavailab...

Using flushing solutions with different nonionic surfactants, this study investigated the remediation of polycyclic aromatic hydrocarbon (PAH)-contaminated soils with different organic carbon contents. Naphthalene and anthracene are the two delegates of PAHs used in the study. Contaminated soil packed in a stainless-steel column was continuously flushed with a surfactant solution at room temper...

Polycyclic aromatic hydrocarbons (PAHs), abundant in mixed contaminant sites, often coexist with heavy metals. The fate and remediation of PAHs depend heavily on the sorption and desorption behavior of these contaminants. The sorption behavior can in turn be highly affected by certain soil components and properties, such as soil organic matter (SOM) and the presence of heavy metals. Through rev...

Soil contamination represents an environmental issue which has become extremely important in the last decades due to the diffusion of industrial activities. Accidents during transport of dangerous materials and fuels may cause severe pollution. The present paper describes the criteria of the actions which were operated to remediate the potential risk and observed negative effects on groundwater...

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...

The influence of direct current electric fields on the possible electrokinetic delivery of nano-iron slurry in clay for the purpose of fast and effective remediation of soil contaminants has been tested. Nano-iron can be introduced to soil hydraulically in slurry form, but in tight clay soil, delivery of a uniform distribution of the slurry may be difficult to achieve for effective remediation....