fulltext - DiVA

More documents

Recommendations

Info

IntroductionThree harbor areas have been used as study objects for the thesis:• Oslo harbor which has been subjected to a remediation project removing300.000 m 3 of sediments from the inner harbor area disposing them in aconfined aquatic disposal site (CAD). This project has been selected in the thesisdue to the substantial social unrest connected to the selected disposal solution.• Bergen harbor is one of the next upcoming harbors for remediation. Here severalaspects have to be balanced when selecting appropriate strategies for furthermanagement. For example, the harbor area is included in the UNESCO list ofworld heritage sites, requiring a balance between ecological objectives ofsediment quality and the selection of technologies not depreciating the historicalvalue of the harbor area.• The Grenland fjord is subjected to contamination due to previous industrialactivities. The magnitude of the area (58 km 2 ) implies that only capping of theseabed either through natural recovery processes or by active methods is feasibleto reduce the fluxes of contamination in to the food chain. Potentially high cost,resource use and social concern calls for careful considerations to assess feasiblemanagement strategies.The research has been conducted in cooperation with three external research projectssupported by the Research Council of Norway:• Sediment & Society (ID 184928/S40) whose overall objective is to recommendan integrated management strategy for stakeholder involvement that can beimplemented within the existing national management framework forcontaminated marine sediments.• Opticap (ID 182720/I40) whose objective is to increase the knowledge ofmaterials and methods suitable for capping of contaminated seabed to reducecontaminant spreading.• International Centre of Geohazards (ICG) which is an international arena forconducting scientific and technological research on identification, assessmentand mitigation of geohazards.In addition the research has been conducted in close cooperation with researchers bothin Europe and USA. Especially cooperation with the Environmental laboratory, USArmy Engineer and Development Center (ERDC) and TNO in the Netherlands has beencrucial for this research.The research is conducted as an integrated part of research activities at theEnvironmental Management & Corporate Social Responsibility group at theDepartment of Industrial Economy and Technology Management, NTNU.9
Introduction1.2 Research QuestionsTo propose a research question and to choose research methods in a way that offers thebest chance to obtain useful answers is an important task in modern research 11 . Thisthesis recognizes weaknesses within a HERA based single criteria management systemand therefore hypothesize a multicriteria decision framework to be a preferablealternative. The research question proposed for the thesis is therefore:“How can sustainable contaminated sediment management be facilitated and what arethe feasible multicriteria decision models to be used?”This complex question can be investigated and discussed from various conceptualangles. The question contains a subjective goal to promote a paradigm shift inmanagement methodology and an objective goal to investigate the feasibility of usingmulticriteria decision methodology to achieve this objective. In order to investigate theresearch question more in detail four specific research questions have been proposed:• What are the gaps between HERA driven management of contaminatedsediments and a holistic risk governance concept?• How are risk perceptive values affecting social preferences and how to involvestakeholders in the management process?• How can environmental impact be estimated holistically?• How to structure a multicriteria decision model incorporating sustainablevalues?The following section gives an overview of the performed research and structures theresults in relation to the proposed research questions.1.3 Outcome of ThesisThe research work has resulted in five publications published in, or submitted to peerreviewjournals, see Table 1. Three papers are presented in Environmental Science &Technology, which is ranked as level 2 (higher level) in the Norwegian classificationsystem for registered publications, see http://dbh.nsd.uib.no/.In addition thesis material is presented in three secondary papers, see Appendix B. Thesecondary papers are connected to thesis work, but are not central to the researchquestions, and therefore included for informatory purposes only.10
Page 1: Doctoral theses at NTNU, 2012:94ISB
Page 4 and 5: NTNUNorwegian University of Science
Page 7: AbstractManaging contaminated urban
Page 13 and 14: ContentsAbstract...................
Page 15 and 16: AbbreviationsACAHPANOVACADCBACDFCEC
Page 17: IntroductionThis thesis promotes a
Page 21 and 22: IntroductionThe fourth paper 16 des
Page 23 and 24: Methodology2. Research Methodology2
Page 25 and 26: Methodologyquantitative and qualita
Page 27 and 28: Results - Current Status3. Evaluati
Page 29 and 30: Results - Current StatusOne way to
Page 31 and 32: Results - Current StatusThe majorit
Page 33 and 34: Results - Analysis4. Analysis of So
Page 35 and 36: Results - Analysisthe harbor. This
Page 37 and 38: Results - Analysis5. Analysis of En
Page 39 and 40: Results - AnalysisIn this thesis, a
Page 41 and 42: Results - Analysisevaluation of env
Page 43 and 44: Results - Improvementsvaluation of
Page 45 and 46: Results - ImprovementsThe process b
Page 47 and 48: Results - ImprovementsThe preferenc
Page 49 and 50: Results - Improvements(MAUT/MAVT).
Page 51 and 52: Results - Improvementsgiven to soci
Page 53 and 54: Results - Improvementsalgorithms (S
Page 55 and 56: Discussion and Conclusionshas been
Page 57 and 58: Discussion and Conclusionscase in a
Page 59 and 60: Discussion and ConclusionsResearch
Page 61 and 62: References1415161718192021222324252
Page 63 and 64: References40414243444546474849Rosen
Page 65 and 66: References626364656667686970717273L
Page 67: References85Soma, K.; Vatn, A. Is t
Page 71:
Appendix AP1 - From Ecological Risk
Page 74 and 75:
Ecological Risk Assessments and Ris
Page 76 and 77:
Page 78 and 79:
Page 80 and 81:
Page 83:
Appendix AP2 - Evaluation of Factor
Page 86 and 87:
FIGURE 1. Overview of the project a
Page 88 and 89:
TABLE 2. Factor Loadings and Cronba
Page 90 and 91:
TABLE 5. Variance Analysis of Socio
Page 93:
Appendix AP3 - Use of Life Cycle As
Page 96 and 97:
Environmental Science & TechnologyF
Page 98 and 99:
Environmental Science & TechnologyP
Page 100 and 101:
Environmental Science & Technologya
Page 103:
Appendix AP4 - Use of multicriteria
Page 106 and 107:
Use of Multicriteria Involvement Pr
Page 108 and 109:
Page 110 and 111:
Page 112 and 113:
Page 114 and 115:
Page 116 and 117:
Page 119 and 120:
Reproduced with permission from Env
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Appendix BAppendix B: Secondary pap
Page 131:
Appendix Bleast 1989 have reiterate
show all

fulltext - DiVA

Create successful ePaper yourself

Delete template?

Save as template?