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Innovative in situ remediation techniques in the Netherlands: opportunities and barriers to application in Sweden
2007 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

After more than ten years of intensified activity within the field of remediation of contaminated sites, the most commonly applied remedial solution in Sweden is excavation. Today there are few alternative solutions available in Sweden, which results in high price levels and few opportunities to select techniques with respect to least negative environmental impact. Whereas alternative remediation techniques are developed in other countries, the application is limited in Sweden. The Netherlands are considered to be one of the leading countries within the field of soil and groundwater remediation. The aim of the thesis is to identify new in situ remediation techniques in the Netherlands that could be suitable to apply in Sweden. The aim is also to identify the most important opportunities and barriers to new in situ techniques in Sweden. The report focuses on techniques suitable for remediation of sites contaminated with petroleum- and chlorinated hydrocarbons. The research is based on literature studies and interviews with key persons. A case study of five Swedish and six Dutch in situ remediation projects was carried out. Finally, an investigation on the experiences of persons active within remediation branch in Sweden was carried out with means of a questionnaire. In general there is in the Netherlands a wider range of different remediation techniques available which can be applied in practice. The in situ techniques identified in this report, with no previous known application in Sweden, are: co-solvent or surfactant flushing, LINER, six- phase heating, electro bio reclamation, electro kinetic bio screens, in situ chemical oxidation with C-sparge and perozone. None of the techniques can be excluded to be suitable to apply in Sweden with respect to environmental criteria such as soil structure, since the environment is unique at each specific site. The variation of the site- specific environment is great between different sites in Sweden. All the techniques have, at appropriate environmental conditions, the potential to reduce the pollution level to correspond acceptable risk levels in Sweden. Many of the new techniques that are regularly used in the Netherlands are known in Sweden, but not applied in practice. In this report differences between Sweden and the Netherlands are identified that can may explain why Sweden apply less innovative in situ techniques. Factors that do not differ between Sweden and the Netherlands are apart from type of contamination, the applied remediation goals, costs and time aspects. Factors that might differ between Sweden and the Netherlands are the soil structure, climate and the costs of in situ techniques compared to other techniques. Factors that do differ between Sweden and the Netherlands are the involvement of contractors in making the remediation plan, the overall strategy of a remediation, the remediation policy, the experience and available guidance of performing different in situ techniques. Demonstrations of new in situ techniques in Swedish environments would the best and most important opportunity to increase the experience and stimulate implementation of new in situ techniques in practice.

Place, publisher, year, edition, pages
Keyword [en]
Technology, Environmental technologies, Contaminated land, The, Netherlands, Soil remediation, In situ techniques
Keyword [sv]
URN: urn:nbn:se:ltu:diva-58017ISRN: LTU-EX--07/239--SELocal ID: e9c57533-9960-4a9b-8a7c-cf2f1e025d20OAI: diva2:1031405
Subject / course
Student thesis, at least 30 credits
Educational program
Environmental Engineering, master's level
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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