Hydrogen as indicator for redox conditions and dechlorination

The use of intrinsic degradation processes (natural attenuation) is becoming the basis for the restoration of many contaminated sites. Within this context, measuring concentrations of hydrogen in groundwater is important in two ways. Firstly, the hydrogen concentration can be used to characterize redox conditions. Secondly, hydrogen may be an...

Time and land-use as interpretation keys for the evaluation of different remedial scenarios

In the regulated community there is often concern as to whether mass removal at a contaminated site actually reduces risk, or whether the small risk reductions achieved warrant the large costs incurred. Decision-makers have to select feasible solutions based on the required risk reduction, costs of the remediation and environmental impact. Thus,...

The occurrence of MTBE in ground water in Europe

Consoil 2000: Foreword and acknowledgement

Inverse modeling of groundwater flow and groundwater mass transport

Innovative reactive barrier technologies for regional contaminated groundwater

At many industrial sites inadequate waste disposal, leakages and war damages have led to severe groundwater contamination on a regional scale. Standard hydraulic groundwater remediation methods, such as pump-and-treat, in most cases do not lead to satisfactory results, due to the persistence of organic contaminants and the resulting very long...

Knowledge-based sampling strategy for soil stockpiles

Over the last three years the Centre for Soil Treatment has sampled 2570 soil stockpiles for the assessment of soil quality. For all stockpiles the same sampling strategy was used. 100 increments of approximately 180 grams were taken and collected into two batch samples. Appropriate sample pre-treatment and analyses resulted in two sets of...

In-situ remediation of contaminated sediments: conceivable and feasible?!

In-situ remediation has assumed large proportions in dealing with terrestrial soil pollution. Although implementation of in-situ remediation for contaminated sediments is restricted by the fact that dredging is necessary for nautical or water management reasons, it should not be discarded beforehand. In this paper a number of potentially...