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1221 Uppsatser om Municipal Solid Waste Incinerator - Sida 57 av 82
Spridning av släckvattenpartiklar : En studie på spridning av partiklar genererade från brand
During a fire large amounts of particles and unhealthy agents occur. Polyaromatic hydrocarbons (PAH) and toxic metals are examples among many others. These agents have a capacity to bond to particles and when the fire is extinguished, the particles can be transferred with the extinguish water into the soil and to the groundwater.Recent studies in particles have been conducted. A study by Ulrika Iverfelt (2014) reviled that the particles from a fire contained large amounts of both PAH and metals, which is consistent with earlier analyses. Her column experiments with particles in the size ? 11 microns and ?100 microns in silica sand, reviled that the larger particles was immobilized because the transportation was influenced by sieving or physiochemical particle and surface interactions.The transport of the particles in soil and groundwater is regulated by two main mechanisms: physiochemical surface interactions and straining.
Innovativ utmatningsteknik : Mediumstor bulkförvaringslösning
This master thesis was done for a company called BRUKS which is active in woodprocessing,bio-energy and bulk material handling industry. The idea for the master thesis wasto develop a new reclaiming method for silos where wood chips are being stored. A mediumsegment of between 1000 ? 5000 m3was defined as the segment with the most sales potential.Two different concepts were produced, one for new constructions and one for rebuildingalready existing silos.In the beginning of the master thesis a lot of time was spent on visiting different BRUKSoffices and customers to get an overview of the industry and the product. This informationwas the basis when the idea generating phase began.
Produktutvecklingsmetoder för industriellt restmaterial
Rapporten behandlar framtagandet av en produktutvecklingsmetod för industriellt restmaterial. Studien har gjorts på uppdrag av Creatables som är ett projekt inom företaget KAAV AB.Creatables arbetar med att ta fram konsumentprodukter genom att ta tillvara och förädla restmaterial från industrin, därav deras slogan Made from Waste.Dagens konsumtionssamhälle förbrukar mycket av jordens resurser och det krävs en effektivisering i utnyttjandet av dessa för att säkra tillgångar för framtida generationer. Creatables är ett ungt projekt med små resurser och således har syftet med examensarbetet varit att ta fram en ny produktutvecklingsmetod för Creatables anpassad till deras arbetssätt och storlek.För att utreda uppgiften har arbetet delats in i två delar som sedan utvecklats parallellt med varandra. En produktutvecklingsmetod och ett flertal produkter av restmaterial har arbetets fram.Litteraturstudier, intervjuer och studiebesök har genomförts för att bygga en grund för resultatet att stå på. Tidigare publicerade teorier om produktutveckling har studerats och informationen och resultaten från dessa har i kombination med produktutvecklingsarbetet använts för att ta fram en produktutvecklingsmetod som passar Creatables.Resultatet är indelat i tre huvudområden.
Miljömålsindikatorer för kommunala planbestämmelser En studie av indikatorsystem för uppföljning av delmål 2 inom miljömålet God bebyggd miljö
The purpose of this study is to propose and formulate quantitative indicators to help measure an aspect of the Environmental Objectives in Swedish legislation: ?A Good Built Environment, Interim Target 2.? The governmental bill 2004/05:150 suggests changes to Interim Target 2: By 2010 built environments of cultural heritage value will be identified and placed under long-term sustainable management. Following the revised formulation regarding sustainable management, indicators should be formulated to measure the fulfilment of sustainable management of built environments of cultural heritage value. An important part of management takes place at the municipal level of planning, where detailed development plans include regulations to protect built environments of substantial cultural heritage value. As a result, this study is focusing upon the regulatory function of the Swedish Planning and Building Act in respect to the built environments of cultural heritage value.
Kostnader vid gallring med flerträdshanterande aggregat, från skog till industri
Profit in first commercial thinnings of today is hard to achieve. This is because of prevailing pulpwood prices and because of high costs of logging and transport. To reduce these costs higher productivity is advocated. One way to increase the productivity is the use of multi-tree handling harvester heads. The aim of this study was to calculate logging and transport costs in first thinnings, where multi-tree handling has been used.
Utvärdering av AOT för ett pilotskaligt, recikulerat akvakultursystem för fiskodling
With the climate change issues growing in importance on the social agenda, the field of urban masterplanning is of no exception when it comes to minimizing the carbon footprint in a variety of projects. The aim of this thesis has been to prepare the Carbon Critical Masterplanning tool, a software plugin for carbon dioxide emissions assessment developed by Atkins, to be used in Swedish conditions. The main targets were to improve the areas of the tool associated with energy conversion and renewable energy sources, and to test the tool in a real case. A planned construction of a new campus in Albano, Stockholm was chosen for the pilot study. A 3D model was built in the tool and the carbon footprint was calculated for a variety of combinations for energy supply to the future area.
Ägarlägenheter : en jämförelse mellan omvandling av hyresrätt till ägarlägenhet och ombildning av hyresrätt till bostadsrätt
Bakgrund och problem: Konsultbranschen kännetecknas av en hög omsättning av aktörer. En anledning till att det ständigt alstras nya mindre aktörer till branschen är att den kan vara lukrativ med låga inträdesbarriärer. Men varför försvinner många aktörer lika fort som de kommer upp? Är det en brist på strategi och styrverktyg som ligger till grund för problemet? Kan det bero på svårigheten för småföretag att skapa sig en solid varumärkeslegitimitet, och finns det en möjligt att med hjälp av styrverktyg stärka företagets varumärkeslegitimitet? Fallföretaget som använts i den här studien är ett litet konsultföretag som vill stärka varumärkeslegitimiteten med hjälp av differentieringsstrategi på marknaden.Syfte: Syftet med den här studien är att med hjälp av en egenarbetad utvärderingsmodell utvärdera olika långsiktiga styrverktyg inriktade mot små konsult- och tjänsteföretags. Genom att utvärdera för- och nackdelar för tre utvalda styrverktyg och sedan applicera de på ett litet konsultföretag är förhoppningen att studien kan leda fram till rekommendationer gällande styrverktygens nytta och möjlighet till anpassning.Metod: I metodavsnittet förklaras vilka metodiska val som har använts i studien.
Energianalys av Svensk Växtkrafts biogasanläggning i Västerås
Svensk Växtkraft is the owner of the biogas plant in Västerås. The company is planning to increase
their treatment capacity at their biogas plant. In connection to this work it is also possible to make
some energy saving changes to the biogas plant. The objective of this study was therefore to make
an electricity and heat survey of the biogas plant, a detailed study of the heat consumption in the
sanitation step and also a comparison of energy consumption with the present sanitation method
and an alternative strategy where the waste is treated in 55 °C during 10 hours (the current method
is heating to 70 °C during 1 hour).
The energy survey was conducted in close collaboration with staff at the biogas plant. The current
during normal operation was measured, power was calculated and multiplied by the time of usage to
obtain the energy consumed.
Sverigedemokraterna i Kävlinge och Svedala kommun
In the rural districts of Sweden, especially in Skåne, the political party Sverigedemokraterna is gaining more and more territory. The aim of this thesis is to examine if the presence of Sverigedemokraterna has had an effect on the other political parties in Kävlinge and Svedala municipality, with focus on images and collective identity. The aim is also to examine what influence Sverigedemokraterna might have on the political agenda of the two municipalities. In order to be able to fulfil the purpose of the essay, we chose to combine three kinds of qualitative methods; interviews, observations and literature studies. We used theories about images and collective identity to examine in which way the municipal politicians tend to classify Sverigedemokraterna in terms of different images and if their presence has effected the other politicians in terms of forming a collective identity.
Carbon Critical Masterplanning tool : klimatpåverkan från samhällsplaneringsprojekt
With the climate change issues growing in importance on the social agenda, the field of urban masterplanning is of no exception when it comes to minimizing the carbon footprint in a variety of projects. The aim of this thesis has been to prepare the Carbon Critical Masterplanning tool, a software plugin for carbon dioxide emissions assessment developed by Atkins, to be used in Swedish conditions. The main targets were to improve the areas of the tool associated with energy conversion and renewable energy sources, and to test the tool in a real case.
A planned construction of a new campus in Albano, Stockholm was chosen for the pilot study. A 3D model was built in the tool and the carbon footprint was calculated for a variety
of combinations for energy supply to the future area. The results show that use of locally installed renewable energy sources can reduce the total climate impact when life cycle
perspective is applied.
Politikers och tjänstemäns uppfattningarom policyn Tobaksfri arbetstid
Tobaksrökning är ett allvarligt hot mot en god folkhälsa i det västerländska samhället. Gällande tobakssnusning är forskningen dock inte enig. Världshälsoorganisationen anser att tobaksprevention ska innefatta policybeslutande samtidigt som Sveriges Kommuner och Landsting rekommenderar kommuner att arbeta strategiskt för att uppnå tobaksrökfrihet bland deras anställda. I Sverige har 67 kommuner antagit policyn Tobaksfri arbetstid. I detta examensarbete har intervjuer genomförts med politiker och tobakspreventivt ansvariga tjänstemän i tre kommuner i Västmanlands län som har påbörjat en arbetsprocess med policyn Tobaksfri arbetstid.
Energy analysis of a fruit drying plant in Adeiso, Ghana
The purpose of the project has been to work out recommendations that reduce the energy-related costs and environmental impact of HPW Fresh & Dry Ltd., a fruit
drying factory in Ghana. The factory produces electricity with diesel and biogas but also purchases electricity from the national electricity company. Heat for the drying
process is produced from biogas, kerosene and solar panels. In the project the energy system was analyzed by measuring production and consumption of heat and electricity.
The project results show that the factory can become self-sufficient on heat if the available energy is used more efficient. The production units for both electricity and heat have low efficiencies.
Karlstad och vattnet : En studie av hur förhållningssättet till översvämningsrisk har förändrats i Karlstads kommun sedan 1950-talet
The location on the river delta of Klarälven, adjacent to lake Vänern, makes Karlstad one of the Swedish cities where a significant flood risk is present. The city has several major floods in its memory which has caused great material damage and economic losses, the latest of which occurred in the winter of year 2000/2001. The purpose of the study is to examine how the approach to flood risk has changed in the municipality of Karlstad since the 1950s, and how this change has affected the current situation regarding the city's vulnerability to flooding. To investigate this, a document analysis was conducted, where key documents in the media and from the municipality of Karlstad was studied. Furthermore, an interview study was conducted with respondents who currently are employed or previously have been employed in the municipality of Karlstad, who in various ways work with issues of flood risk. The result of the study shows that several changes have taken place since the 1950s in terms of the municipality's approach to flood risk, which for instance has led to preventative measures being taken to a greater extent than previously in the physical planning.
Carbon Critical Masterplanning tool : klimatpa?verkan fra?n samha?llsplaneringsprojekt
With the climate change issues growing in importance on the social agenda, the field of urban masterplanning is of no exception when it comes to minimizing the carbon footprint in a variety of projects. The aim of this thesis has been to prepare the Carbon Critical Masterplanning tool, a software plugin for carbon dioxide emissions assessment developed by Atkins, to be used in Swedish conditions. The main targets were to improve the areas of the tool associated with energy conversion and renewable energy sources, and to test the tool in a real case. A planned construction of a new campus in Albano, Stockholm was chosen for the pilot study. A 3D model was built in the tool and the carbon footprint was calculated for a variety of combinations for energy supply to the future area.
L?ggning av ett kils?gat br?dgolv
This bachelor thesis contains the findings of an investigation into the laying of wedge sawn wood
flooring.
The advantage of wedge sawn wood flooring is the usage of more material from each board reducing
waste. The boards follow the natural profile of the tree where the root part of the board is wider,
and the top part is narrower. The technique involves placing boards side by side with adjacent boards
in opposite directions. The thick base of one board is neighbored by the narrow top of another, this
creates a pattern of wedges in alternating directions, known as a ?root and top? system.
Existing literature into this type of flooring is sparce.