To reduce emissions of carbon dioxide (CO2) Carbon Capture and Storage (CCS) technologieshave been developed. Chemical Looping Combustion (CLC) is a CO2 capture technologywith the CCS framework, and at Chalmers University of Technology in Gothenburg,Sweden, a 100 kW chemical looping combustor has been built.This project aimed to investigate to what degree air can replace helium as the uidizinggas for uid dynamical studies in a CLC cold ow model of the above mentioned 100 kWfacility. Experiments were performed using air and helium separately as uidizing gas andpressure data were obtained, which formed the basis for the comparison. The project alsoaimed to investigate uid dynamics in the uidized bed and study when the risk of sluggingoccuring was greatest. The results were presented in the form of figures and tables dividedinto pressure, concentration and standard deviation of the pressure.The results obtained showed that air as uidizing gas did not create the same uid dynamicsas helium over the entire fuel reactor.

The main aim was to investigate the provenance of Viking age antler material findings of moose and red deer from Sigtuna and from three sites on the island of Gotland in the Baltic sea. This was done by analysis of the stable isotopes of carbon, nitrogen and sulphur. Thre were never any living population of these mammals on Gotland during the Viking age.?34S-values of sulphur from this study was compared with earlier research and by studying maps of the Swedish bedrock. The ?34S-values were more like the ?34S-value for bedrock other than European granite.

Wastewater handling of private sewage systems has become an all increasing matter. In Stockholm region the 90 000 private sewage systems contribute with larger phosphorus flows to the Baltic Sea than the two biggest sewage plants in the area, Henriksdal and Käppala, contribute together, even though these two plants purify wastewater from more than one million inhabitants. When summer house areas turn into areas for permanent living ? transition areas ? the load on the existing systems increases, systems that already often are unsatisfying. In those areas it is not clear what the best system choice is; On-site systems for single households; Local collective systems or Connection to central systems.

To reduce emissions of carbon dioxide (CO2) Carbon Capture and Storage (CCS) technologieshave been developed. Chemical Looping Combustion (CLC) is a CO2 capture technologywith the CCS framework, and at Chalmers University of Technology in Gothenburg,Sweden, a 100 kW chemical looping combustor has been built.This project aimed to investigate to what degree air can replace helium as the uidizinggas for uid dynamical studies in a CLC cold ow model of the above mentioned 100 kWfacility. Experiments were performed using air and helium separately as uidizing gas andpressure data were obtained, which formed the basis for the comparison. The project alsoaimed to investigate uid dynamics in the uidized bed and study when the risk of sluggingoccuring was greatest. The results were presented in the form of figures and tables dividedinto pressure, concentration and standard deviation of the pressure.The results obtained showed that air as uidizing gas did not create the same uid dynamicsas helium over the entire fuel reactor.

To reduce emissions of carbon dioxide (CO2) Carbon Capture and Storage (CCS) technologieshave been developed. Chemical Looping Combustion (CLC) is a CO2 capture technologywith the CCS framework, and at Chalmers University of Technology in Gothenburg,Sweden, a 100 kW chemical looping combustor has been built.This project aimed to investigate to what degree air can replace helium as the uidizinggas for uid dynamical studies in a CLC cold ow model of the above mentioned 100 kWfacility. Experiments were performed using air and helium separately as uidizing gas andpressure data were obtained, which formed the basis for the comparison. The project alsoaimed to investigate uid dynamics in the uidized bed and study when the risk of sluggingoccuring was greatest. The results were presented in the form of figures and tables dividedinto pressure, concentration and standard deviation of the pressure.The results obtained showed that air as uidizing gas did not create the same uid dynamicsas helium over the entire fuel reactor.

SecRePac is a household appliance that simplifies sorting of packaging such as milk, juice and yogurt containers. By shredding the packages SecRePac reduces its volume uptake both in the home and at the recycling station. This leads to minimization of both transports to the recycling stations and truck transport for emptying the containers at the recycling station.The greenhouse effect deteriorates and becomes worse and worse leading to extreme climate changes and natural disasters such as floods as an example. Carbon dioxide emissions are the major reason for this and at least 30 percent of all these emissions come directly from transports. In the EU carbon emissions has decreased in the past few years.

To reduce emissions of carbon dioxide (CO2) Carbon Capture and Storage (CCS) technologieshave been developed. Chemical Looping Combustion (CLC) is a CO2 capture technologywith the CCS framework, and at Chalmers University of Technology in Gothenburg,Sweden, a 100 kW chemical looping combustor has been built.This project aimed to investigate to what degree air can replace helium as the uidizinggas for uid dynamical studies in a CLC cold ow model of the above mentioned 100 kWfacility. Experiments were performed using air and helium separately as uidizing gas andpressure data were obtained, which formed the basis for the comparison. The project alsoaimed to investigate uid dynamics in the uidized bed and study when the risk of sluggingoccuring was greatest. The results were presented in the form of figures and tables dividedinto pressure, concentration and standard deviation of the pressure.The results obtained showed that air as uidizing gas did not create the same uid dynamicsas helium over the entire fuel reactor.

To reduce emissions of carbon dioxide (CO2) Carbon Capture and Storage (CCS) technologieshave been developed. Chemical Looping Combustion (CLC) is a CO2 capture technologywith the CCS framework, and at Chalmers University of Technology in Gothenburg,Sweden, a 100 kW chemical looping combustor has been built.This project aimed to investigate to what degree air can replace helium as the uidizinggas for uid dynamical studies in a CLC cold ow model of the above mentioned 100 kWfacility. Experiments were performed using air and helium separately as uidizing gas andpressure data were obtained, which formed the basis for the comparison. The project alsoaimed to investigate uid dynamics in the uidized bed and study when the risk of sluggingoccuring was greatest. The results were presented in the form of figures and tables dividedinto pressure, concentration and standard deviation of the pressure.The results obtained showed that air as uidizing gas did not create the same uid dynamicsas helium over the entire fuel reactor.

Bath has been a part of human history for a long time. Today bathing/swimming inmunicipal pools is for people of all ages and it is possible to take swimming courses,exercise or enjoy recreation. The municipal indoor pool of Hogdalen in Sweden wasbuild in the sixties and has had problems with high levels of heterotrophic bacteria. Thefacility has two larger pools, one adventure park for young kids, two smaller bath tubsand a jacuzzi. To improve water quality UV light and coal filter were installed inOctober 2009 to the already existing purification system.

The main purpose of this M. Sc. thesis is to increase the knowledge about managing urban forestry for recreational use. The analysis is focusing on differences between visitors? experiences in the north and south of Sweden, represented by Nydalasjön and by Härlanda tjärn.

Detta är en studie om klimatpåverkan i samband med anläggandet av järnvägsbroar i syfte att ta fram nyckeltal (moment, material, mängder) för att effektivt kunna reducera utsläppen av växthusgaser. Till grund för studien har vi arbetat med Trafikverkets verktyg klimatkalkyl 2.0. Det har granskats utifrån användarvänlighet och riktighet i indata och emissionsomräkningsfaktorer. Det för att se till skillnaden mellan modellen och ett unikt anläggningsprojekt, var skiljer sig Trafikverkets typvärden mot de projektspecifika förutsättningarna samt vilka blir dess konsekvenser?Studien har kommit fram till att utan viss försiktighet vid arbete i klimatkalkyl 2.0 finns risk för inkorrekta resultat.

Klimatförändringarochväxthuseffektenärämnensomdebatterassågottsomdagligenisamhället.Enviktigfrågaidebattenärlivsmedelskonsumtionensbetydelseförklimatförändringarna.Idettaarbetestuderaskonsumenterssynpåtreolikasvenskaklimatmärkningar;SvensktSigill,KRAVochCarbonFootprint.Förattmöjliggöraförkonsumenternaattgöraaktivavalavlivsmedelsomärbättreurklimatsynpunkt,harKRAVochSvensktSigilltillsammansiettgemensamtprojektarbetatmedatttaframenklimatmärkning.Allaproducenterochföretaganvänderintedennamärkning,utanhariställetvaltattanvändasigavensåkalladproduktmärkning,CarbonFootprint,somredovisarenenskildproduktsklimatpåverkan.Syftetmedsamtligamärkningarärattunderlättakonsumentensvalavmerklimatvänligalivsmedel.Idettaarbeteharkonsumenternassynpåklimatmärktalivsmedelstuderatsgenomenkätundersökningar.Urvalsmetodenförenkätundersökningensomanvändesärettsåkallatpåstanna?urvaldärenkäternadelasut,idettafallienlivsmedelsbutik,tilldepersonersområkarpassera.Enkätenbestodavfrågorsomrördebådekonsumentenssynpådensåkalladeklimatfråganochvilkaåtgärderkonsumenternaansågbordegörasförattminskamatenspåverkanpåklimatet.Huvuddelenavenkätenbehandladefrågorsomsyftadetillatttaredapåkonsumentenssyn,inställningochkunskapomklimatmärkningarna.184konsumentersvaradepåenkätenochdengenerellabildenärattklimatfråganärenmycketviktigfråga.Konsumenternasinställningtillenklimatmärkningvisadesigvaramycketpositivdärhela85procentinstämmeriattdetvorebramedenklimatmärkningavmat.Denallmännauppfattningenblandkonsumenternaärattklimatförändringarnaärencentralfrågaoch77procentanserattkonsumenternabörändrasinamatvanorförattbromsaklimatförändringarna.85procentanserattdetvorebramedenklimatmärkningsåattdetblirenklareattväljalivsmedelsomärbättreurklimatsynpunkt.Mångaavförslagentillförändringarsomkonsumenternakangöraförattminskasinklimatpåverkanärkonsumenternavälförtrognamed,mendetärintealltiddeföljerdem.Inställningentilldeolikaklimatmärkningarnaärrelativtgodochigenkänningenär69procentförSvensktSigillochhela93procentförKRAV.MärkningenCarbonFootprintäridagsynnerligenokändiSverige.Sammanfattningsviskankonstaterasattdetföreliggerettstortintresseförklimatfråganblandkonsumenterna.Entydligochenkelklimatmärkningavlivsmedelsomgördetmöjligtförkonsumenternaattväljalivsmedelsomärbättreurklimatsynpunktefterfrågansochskulleuppskattas.Kunskapenomdebefintligaklimatmärkningarnaärmycketbegränsadochdetkrävstroligtvismycketarbeteföratthöjakunskapsnivånkringklimatmärkningar..

Idag är det få som motsäger sig att människan är ansvarig för de klimatförändringar vi börjat uppleva. Globala överenskommelser visar sig vara svåra att formulera men regioner såsom EU har infört handeln med utsläppsrätter och allt fler enskilda nationer och verksamheter sätter nu upp egna mål för reduktioner av skadliga utsläpp. Vissa verksamheter går steget längre och har skapat interna kompensationssystem för sina aktiviteters klimatkonsekvenser. Studien har med hjälp av kvalitativa intervjuer undersökt sex verksamheter i Sverige som frivilligt valt att klimatkompensera internt. Här presenteras bakgrunderna till det interna valet, hur arbetena utformats liksom vilka lärdomar som kan dras från deras erfarenheter.

To reduce emissions of carbon dioxide (CO2) Carbon Capture and Storage (CCS) technologieshave been developed. Chemical Looping Combustion (CLC) is a CO2 capture technologywith the CCS framework, and at Chalmers University of Technology in Gothenburg,Sweden, a 100 kW chemical looping combustor has been built.This project aimed to investigate to what degree air can replace helium as the uidizinggas for uid dynamical studies in a CLC cold ow model of the above mentioned 100 kWfacility. Experiments were performed using air and helium separately as uidizing gas andpressure data were obtained, which formed the basis for the comparison. The project alsoaimed to investigate uid dynamics in the uidized bed and study when the risk of sluggingoccuring was greatest. The results were presented in the form of figures and tables dividedinto pressure, concentration and standard deviation of the pressure.The results obtained showed that air as uidizing gas did not create the same uid dynamicsas helium over the entire fuel reactor.

The estate of Rämningstorp in the region of Västergötland in southern Sweden is administered by the holding trust company Skogssällskapet i Skövde. In 1999 measures were taken by Skogssällskapet to drain the stream Fredstorpsbäcken as a means to increase the forest productivity of the surrounding lands, which are situated on the estate of Rämningstorp. Almost immediately after the drainage, the streamwater turned turbid and a landowner downstream reported the issue to the county administrative board of the region. The aim of this thesis was firstly to analyse the suspended matter that appeared during summer/autumn and secondly to explain why it came to be. Initial hypotheses for the explanation to the greyish turbid water were that it was either 1) a chemical/biochemical precipitate, or 2) an bacterial/algal blooming.