While extensive research has been performed on many technological
aspects of permeable reactive barriers and a number of contaminants
have so far been successfully treated by PRB systems, long-term
performance has not been extensively considered and little is known
about the processes influencing long-term behaviour. This gap in
our knowledge is all the more disadvantageous as design life has a
decisive influence on the economic viability of PRBs.
The book describes methods for evaluation and enhancement of the
long-term performance of PRB systems, especially of those targeting
heavy metals, specifically uranium, and organic contaminants by
sorption and/or precipitation mechanisms. Major topics in the book
are:
- Selection and characterisation of suitable reactive
materials
- Characterisation of the relevant contaminant attenuation
processes
- Developing new contaminant-binding chemical compounds
("ligands")
- Accelerated testing methods to assess the long-term performance
of the attenuation mechanisms in PRBs
- Evaluation of the influence of site characteristics on PRB
performance
- Monitoring of existing and new field installations
- Coupling of electrokinetic techniques and PRB systems
- Large-scale laboratory and field tests and their results
It addresses the long-term performance of PRBs, an important
feature of this novel remediation technology, systematically. It
deals extensively with heavy metal removal, with special emphasis
on uranium. A number of case studies, experiences with large-scale
modelling and test site experiments provide insight into
thepractical application of the results. This volume will
contribute to the science underpinning groundwater remediation, and
this will result in the improvement of quality of life and health
and safety.
* A systematic approach to investigating the long-term performance
of permeable reactive barriers
* Development of new contaminant-binding chemical compounds
("ligands"), accelerated testing methods to assess the long-term
performance, and efficiency enhancing electrokinetic
techniques
* Extensive data and information on a Hungarian uranium mining
facility; once a carefully kept secret of the Soviet Union
General
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