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796 Uppsatser om Anaerobic digestion of organic waste - Sida 39 av 54

Måltidskvalitet i förskolan : bidrag till ett kvalitetsbedömningssystem

The quality of meals is included in the constant improvement of each preschool. The study is carried out on behalf of the City of Malmö and Environmental Management and focuses on this quality work. By compiling a checklist of meal quality and by identifying what the meal quality means for persons working with the meal (managers, cooks, educators and parents), it is our wish that this will be a help in their quality work. To inspire the composition various organizations working methods and ways to manage, evaluate and make use of different models and tools to improve the dining quality, has been studied. In the literature, the work has received confirmation of theories that emerged during the analysis work of what a meal is and how quality can be measured. The results show that food quality is described as a complex concept consisting of different parts, where the food, atmosphere, service, together form the meal quality. The semi-structured interviews and the inquiry form, have given an indication of the preschool work with quality in the meal activities and it shows that on a wide range and large differences.

High Orbit Ion Cannon : Går det att skydda sig?

The development of productivity in the construction industry has long been at a steady state compared to the manufacturing industry. Studies have shown that, amongst other things, waste on construction sites can reach up to one third of the total production cost. This has been observed from different aspects, and change is forthcoming.This thesis aims to provide a foundation for an increased productivity at production sites of building bridges. It is primarily based on a field study at Skanska, at a bridge construction site near Grängesberg. Via continuous interviews with the whole production crew, construction workers and management, information on interference and possibilities of improvement at the work site has been documented.

Framtagning av en rörväxlaretill sopsugsystem

The main goal of this project was to develop some sort of a diverter for pipestransporting waste in a vacuum system. This unit was supposed to be both cheap andeasy to serve/exchange worn out parts. With a limited space to install the pipeexchanger, the challenge was to keep it as compact as possible without constructingbends with to small radius or to sharp angles as this would wear out the system a lotfaster than planned. The system was also supposed to be able to handle clothes andscrubs from hospitals. Having too much sharp edges or angles would tear the clothesapart.

Hållbarhetsredovisning : En studie kring skillnader mellan granskade respektive icke granskade företag

The purpose of this study was to examine the differences between non-audited and audited sustainability reports and in that way indicate the significance of auditing to the contents of a sustainability report. The study was delimited to include three companies that create sustainability reports according to GRI guidelines, and also have changed from non-audited to audited reports.The study is an exploratory study where we started from companies that follow GRI's standard and who have changed from being non-assured to assured and certified. In order to examine any differences we have started out from corporate sustainability reports and with the basis of these latter gather those changes which may have occurred during the changeover. We therefore chose to conduct a literature review on each company's non-audited sustainability reports and compare them with each company's audited and certified sustainability reports. Furthermore our study has been made on the basis of an assessment model based on the concepts of materiality, completeness and comparability.The study showed that the audited sustainability reports in all companies were more focused and more detailed about the aspects GRI established for the performance indicators.

Vilka faktorer påverkar beslut om förtida projektavslut? : En fallstudie av utvecklingsprojekt hos svenska industriföretag

Today many industrial companies invest a lot of resources on research and development to resist the tough competition on the global market. This leads to a high risk game when the companies start many development projects, with uncertain outcome where some of the projects have to be terminated prematurely. The main purpose with this study is to identify factors, both internal and external, that influence the decision to terminate projects prematurely in Swedish development projects. Factors mentioned in the literature will be compared with case studies on three Swedish industrial companies to demonstrate the most important ones when taking such decisions. First a literature study was made to identify basic terms, a general project model and factors affecting the decision.

Framtidens kongresshus : Stadsbyggnadsvisionen i Jönköping

Since a couple of decades the community of Jönköping has worked out an urban vision of how the city should be appropriated expanded. The prospect extends to around year 2040 and deals with the area south of lake Munksjön in Jönköping, Sweden. Today there is a proposal of how this would look like and what main public functions that should be located there. One issue in the so-called urban vision 2.0 indicates a congressional building. This report describes how such an object can be designed according to the urban vision conditions.The work is focused on three main themes;* Architectural concept and a modern form of expression.* A functional attractive congress building in a new planned town centre.* General concept of a realistic structure system that meet the spatial and architectural possibilities.Various concepts in the meeting industry and in the architecture field are identified in order to understand the concepts and ideas with today´s congress buildings.

Etanolmetabolismen ur ett alkoholistperspektiv : Kemin vid nedbrytning av etanol i kroppen, dess betydelse för kroppens kemiska processer i övrigt samt dess betydelse för hälsa och sjukdom

The present study discusses the metabolism of ethanol in the human body from the ingestion of ethanol to the excretion of its break down products water and carbon dioxide. Ethanol is a small molecule, soluble in water as well as in organic solutions. It is quickly distributed to every section in the body, where it exerts a direct toxic effect on the cells. Ethanol cannot directly leave the body efficiently so it needs other metabolic pathways. The molecule is metabolized by oxidation, predominately in the liver.

Strumpstickmaskinen och dess roll på den svenska marknaden

Idag är det inte många textilföretag som har möjlighet att ha strumpproduktion i ett land som Sverige på grund av lönsamhetsskäl. Det är billigare att producera i låglöneländer i Europa eller Asien, men det tär istället på våra naturresurser och vår miljö att transportera produkter fram och tillbaka. På grund av de höjda lönerna i Kina och valutakursen för euron som höjts drastiskt i Europa har Sverige dock kommit till ett läge då det blir ekonomiskt lönsamt att flytta tillbaka en del av produktionen till Sverige. Dessutom ökar trenden med ekologiska och närproducerade varor, vilket ökar efterfrågan på svensktillverkade produkter. Studien syftar till att ge privatpersoner och företag ett underlag till att undersöka sina möjligheter för produktion av strumpor på den svenska marknaden.Utvecklingen av strumpproduktionen i Sverige pågår hela tiden och företagen uppdaterar sina maskinparker och utbildar sina anställda, vilket leder till en utveckling av marknaden.

Beräkningsmodell för massbalanser för Slottshagens reningsverk

In the next few years the pollutants loading at the Slottshagen wastewater treatment plant in Norrköping is going to increase due to the reason that one of the waste water treatment plant in the district will be shut down.A survey of how these different pollutants are divided in the treatment process is therefore necessary for mapping out both the loading and treatment efficiency.This can be achieved by studying mass balances.Mass balances were carried out for the water treatment process for the mechanical/chemical,biological and the chemical stage.The mass balance studies show that the treatment efficiency was very good. However in order for the mass balances to be quite consistent and to ensure complete coverage of results and conclusions i.e. more reliable results, sludge samples should be collected and taken at different times per day and the influent rate should be investigated.In this work mass balance has been set up in order to illustrate and identify the factors that should be considered and taken care of for further estimation using mass balances in the future. Furthermore this survey results in a calculating model for the mass balances at thisplant.This calculating model is used as a tool to facilitate future calculations for mass balances for the water treatment process at Slottshagens wastewater treatment plant.Moreover it provides a basis for carrying out further estimation of the treatment process in the near future.In this project the importance of some operating parameters was also taken in consideration.This calculating model can be modified so that calculations of such operating parameters i.e. sludge loading and sludge age can be easily performed.Such information can be used further to evaluate different operation alternative in order to ensure an optimal use of the treatment process with in the plant..

Utlakning av tungmetaller från Skörby deponi

The purpose of this thesis has been to assess whether leaching from one particular Swedishlandfill site, Skörbytippen, is contributing to elevated levels of heavy metals in a ditch runningfrom the landfill site to the lake Mälaren in the communal region of Håbo kommun. Since theditch is stretching approximately five km downstream from the landfill site, in situ observationsand maps with known points of inflow was utilized to determine appropriate test points for thecollection of samples.Soil, water and sediment samples were collected and analyzed for content of organic material, pHand conductivity. Data on plant-available elements and total amounts of heavy metals wasacquired through ICP-analysis.The results show that the Skörby landfill is currently in the methane-forming anaerobedevelopment phase, which indicates that the concentration of free and complex-bound metals inthe leachate water should be low due to chemical binding with other landfill compounds. The pHof the sediment samples was generally one unit higher than the soil samples and some of themeasured data, such as pH and conductivity, show that an environmentally disturbing dischargeof some kind of strongly alkaline chemical(s) has been made from Benders? takpanneindustri inclose proximity to the landfill.

Lean Produktion på mjölkföretag - fungerar det?

The contact company, LRF Konsult, is a consulting firm specialized in areas of law, real estate, finance and taxation. Discussions on the subject of agricultural improvement in the area of Lean, has primarily been driven by the Royal Swedish Academy of Agriculture and Forestry, where LRF Konsult also participated. This thesis can be seen as a preliminary study of how Lean can work within agricultural enterprises.The thesis primarily focuses on the possibilities dairy farms have to improve operations. What practical benefits they can obtain through the implementation of Lean. And how an implementation could take place.By visits to two dairy companies, and through interviewing their respective business leaders, an image of the companies activity for improvement, in connection to this thesis was established.

Dödsgott med käk i kistan : En GCMS- och FTIR-analys av kermik från ett vikingatida gravfält i Alsike hage, Alsike sn, Uppland

This paper deals with the connection between food and burial habits during the late Iron Age in present-day Sweden. The archaeological material used in the study consists of 16 potsherds from a burial site at Alsike hage, Alsike parish, in the province of Uppland in east-central Sweden. On these potsherds have been conducted FTIR- and GCMS-analyses, in order to see what types of food have been deposited in the burials. Furthermore, the result of the GCMS-analyses has been compared to contemporary material from both burial sites and settlement sites, in order to establish whether differences between the compared materials exist. The analyses show that there are differences between the material from burial sites compared with the material from settlement sites, but not any particular differences between the material from different burial sites.

Safe retrieval of nutrients to improve food security

Safe retrieval of nutrients from human excreta to fertilize crops in order to gain adequate yields will increase food security and sustainability in agriculture areas with nutrient-poor fields. Safe and nutritious food will meet the dietary needs of the individual which promotes public health and the ability of an active life. Human excreta should be considered as a resource instead of being assumed as waste. Human faeces and urine is excellent fertilizers which may close the nutrient loop if utilized properly. However, sanitation of the excreta is required to prevent disease transmission by reducing the content of gastrointestinal pathogens such as bacteria, viruses and parasites. The objective of this study was to in small scale evaluate the sanitation in a combined liquid compost and urea treatment by monitor the inactivation of bacteria and viruses at the combination three start temperatures, 45, 40 and 35 °C, and three additions of urea, 0.5, 0.75 and 1 % and reference, 0 % urea addition.

Andlighet och religiositet på Fryshuset : en inblick i en senmodern och global förändringskontext

The aim of this study is to investigate the components of religion and spirituality in the specific context of "Fryshuset" ? a multicultural and glocal arena. Against the backdrop of contemporary researchers such as Heelas and Woodhead and their hypothesis about the "spiritual revolution" and a "new spirituality", as well as the postmodern discussion about "the return of God", this study discusses how religious change can be understood in the context of Fryshuset.The theoretical point of departure is taken in a hermeneutical method where Fleck´s theory about "thought-collective" and Gidden´s theory about the "duality of structure" are used in order to understand and describe the dialectical relationship between individual and social structure.The method used in this study is qualitative. The interviews are made of six individuals representing different social projects at Fryshuset.By analyzing the material from the field study through theories on religious change, three areas are identified:"The subjective turn"Religion and spiritualityA Cosmopolitan interpretation of life The result of this study is that the religiosity among the interviewed can be described through Taylor?s understanding of the "subjective turn".

Vårlamm eller dikoproduktion i Dalarna : fallstudie

This study investigates a farm in Dalarna which includes 16 ha of farmland and 1, 7 ha of pasture. The purpose is to find out if it is possible to start an animal production in Dalarna. The study is set only to compare spring lamb production with nurse cow production. There are two buildings on the farm that can be used for this purpose. One is an old cowshed, and the other is an unused silo for silage with a roof on top. Both of the buildings are compared to every alternative in the calculations.

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