Title: Biological Methods for the Assessment and Remediation of Contaminated Land: Case Studies, C575 
Resource Type: document --> case study 
Country: United Kingdom 
Year: 2002 
Availability: Biological methods for assessment and remediation of contaminated land: case studies (C575) Author(s):D Barr et al Date: 2002 ISBN:0-86017-575-8 
Author 1/Producer: CIRIA 
Other Authors/Producers: Barr, Bardos, Finnamore, Weeks, Nathanail 
Author / Producer Type: Consultancy, contractor or other service provider 
Publisher: CIRIA 
Publisher City: CIRIA, London UK 
ISBN: 0-86017-575-8 
Report / download web link (=direct link): http://www.ciria.org.uk/acatalog/C575.html  
EUGRIS Keyword(s): Contaminated land-->Remediation options-->Ex situ treatment technologies
Contaminated land-->Remediation options-->In situ treatment technologies
Contaminated land-->Remediation options-->MNA
Contaminated land-->Remediation options-->Passive and hydraulicContainment
Contaminated land-->Remediation options-->Remediation options overview
Contaminated land-->Risk assessment-->Receptor: Ecological
Contaminated land-->Risk assessment-->Tools and procedures
Contaminated land-->Risk management-->Selection of remediation options
Contaminated land-->Site investigation-->Methods
Short description: Contents: Part A Overview, 1 Introduction, Part B Bioremediation, 2 Introduction, 3 Case studies, 4 Factors to consider in the selection and implementation of bioremediation technologies on contaminated sites, 5 Conclusions, Part C Biological test methods, 6 Overview, 7 Case studies, 8 Factors to consider in the selection and use of biological test methods to asses ecological risk on contaminated sites, 9 Conclusions, References, Appendix A Contacts, Appendix B Biological test methods 
Long description: Description:Biological processes to treat contaminated land (bioremediation) have had widespread use in North America, several countries in mainland Europe, and in the UK. The general technical consensus is that remediation (biological or otherwise) should usually take place in a risk management context to break pollutant linkages. Risk assessment is the defining discipline for this management approach. Conventional approaches to risk assessment are based on evaluations of contaminant toxicity and exposure to organisms (a function of bioavailability). The evaluations are informed by conceptual site models developed using site investigation data. Typically estimations of toxicity and bioavailability are generic in nature, based on overall assumptions, which have to be rather conservative in order to provide an acceptable level of protection for all types of site and contamination problems. Biological techniques have begun to be used as tools to provide site specific estimates of bioavailability and ecotoxicity, for use in risk assessment. There is great interest in developing these biological test methods further as they are seen as potentially offering a more direct appraisal of risks. Bioremediation techniques include monitored natural attenuation (MNA), biosparging, groundwater recirculation, landfarming, biopiles, bioreactors, phytoremediation, treatment beds and windrows. This report includes a series of case studies showing that bioremediation can cost-effectively treat a range of contaminants under redevelopment, transaction or proactive risk management scenario. The case studies selected are representative of many of the technologies in commercial use in the UK. 
Link to Organisation(s): Construction Industry Research and Information Association
Submitted By: Dr Paul Nathanail WhoDoesWhat?      Last update: 27/09/2006