Blar i NORCE vitenarkiv på forfatter "Kjeilen, Grethe"
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Biodegradability of organic chemicals at anaerobic, marine conditions
Wiik, Ragnhild; Kjeilen, Grethe; Torgrimsen, Sigfryd (Research report, 1997) -
Bruk av den mikrobielle sammensetningen i det marine miljøet som en indikator på oljeforurensning
Kjeilen, Grethe; Olsen, Samuel D. (Research report, 1999)Med bakgrunn i tilgjengelig informasjon om metoder for å se på mikrobiell sammensetning i marine miljøer er mulighetene for å bruke den mikrobielle statusen til det marine miljøet som en indikator på oljeforurensning blitt ... -
Characterisation of the cuttings piles at the Beryl A and Ekofisk 2/4 A platform - UKOOA Phase II, task 1
Westerlund, Stig; Eriksen, Veslemøy; Beyer, Jonny; Kjeilen, Grethe (Research report, 2001)The cuttings piles at Beryl A and Ekofisk 2/4 A have been characterised according to the recommendations in the OLF Guidelines. The characterisation parameters selected from these Guidelines were the most feasible ones ... -
Environmental impacts of cutting deposits in the Frigg area
Westerlund, Stig; Kjeilen, Grethe (Research report, 2002)This report summarises the findings from all investigations performed so far on cuttings deposits in the Frigg area. The following issues have been considered: • Area description with field data • The relationship between ... -
Sammenligning av alternative behandlingssystemer for organisk husholdningsavfall
Kjeilen, Grethe; Meissner, Rudolf (Research report, 1996)Alternative behandlingssystemer for omsetning av organisk husholdningsavfall er beskrevet og sammenlignet med bakgrunn i den teknologiske prosessen, miljøpåvirkninger og økonomiske vurderinger. Metoder som er omhandlet ... -
UKOOA phase II Task 3: Aerobic and anaerobic degradation of drill cuttings – results from small scale laboratory experiments
Kjeilen, Grethe; Torgrimsen, Sigfryd; Øysæd, Kjell Birger; Jonsson, Grete; Brakstad, Odd-Gunnar (Research report, 2001)The main goal of the small-scale biodegradation experiment series was to obtain biodegradation rates of THC in drill cuttings material, at conditions partly realistic for in situ drill cuttings accumulations. Both aerobic ... -
UKOOA Phase II Task 3: Simulated bioturbation of drill cuttings – results from small scale laboratory experiments
Tvedten, Øyvind F.; Torgrimsen, Sigfryd; Kjeilen, Grethe (Research report, 2001)Bioturbation can influence many of the characteristics of sediments, including their stability, microbial activity and degradation rates of contaminants. This study addresses the effects of mechanical disturbance, resembling ... -
UKOOA Phase II – Task 3 joint report on factors determining future pile characteristics
Kjeilen, Grethe; Brakstad, Odd-Gunnar; Ramstad, Svein; Tvedten, Øyvind F.; Vefsnmo, Sylvi; Woodham, Annette; Macnaughton, Sarah; Lothe, Arne (Research report, 2001)The UKOOA Task 3 focuses on factors that may cause cuttings pile changes (e.g. pile size and composition) with time primarily due to natural processes. Task 3 has been organised in several sub-tasks that separately and ... -
UKOOA Task 3: Colonisation and macrofaunal activity in drill cuttings material – results from small scale laboratory experiments
Woodham, Annette; Tvedten, Øyvind F.; Eriksen, Veslemøy; Torgrimsen, Sigfryd; Kerr, Juliana; Kjeilen, Grethe (Research report, 2001)This report presents the results from a laboratory experiment addressing colonisation and bioturbation of drill cuttings material. The work forms a sub-task of Task 3 of the UKOOA Drill Cuttings JIP phase II Task 3 and has ...