Biogas mainly consists of methane and carbon dioxide, where methane is theenergy-rich gas, and is naturally created when organic matter breaks down in absenceof oxygen, also known as anaerobic digestion. A biogas plant re-creates the anaerobicconditions inside a digester where the organic substrate is fed into and digests toproduce biogas. The gas is then used to produce energy by combustion and can beseen as a completely renewable fuel.Today, energy from biogas is used primarily by major stakeholders such asmunicipalities and thus the plants become very large with high investment- andconstruction costs. There are currently few small plants in Sweden, even though thepotential for agriculture and medium-sized to smaller farms to become self-sufficientin terms of electricity and heat is great. Farms have a natural stock of digestibleorganic material in form of manure or crops for example, which are constantlyavailable.

In the Maasai Mara National Reserve the native people, the Maasai, have lived for a long time following their own traditions. Their traditional lifestyle is that of a nomadic people, leading their cattle to the best grazing. Sharing their land with a large variation of different animals, one of them being the African Elephant (Loxodonta africana), the Maasi people have since long adapted to a life side by side with these giants, as well as the fierce predators living in the area.The aim of this study is to determine whether the Maasai settlement, known as Boma, has any impact on the elephants in the surrounding area. In order to conclude whether the bomas has an impact or not, observations of the wildlife were carried out. Observations were conducted in two different seasons, in December 2003 and May/June in 2004.

The giant otter (Pteronura brasiliensis) is listed as an endangered species and scientific litterature concerning its biology and behaviour is scarce. The current study observed a group of three giant otters in a Swedish zoo. First the otters normal behaviour was recorded. Then the aim of the study was to see if the otters behaviour changed when given blue mussels (Mytilus edulis). Furthermore the aim was to see if the otters displayed any tool-using behaviour when given mussels.

Title: Brand loyalty and switching behavior ? A case study of the Swedish ketchup market Authors: Marcus Andersson Mattias Hedblad Tutors: Björn Bergenståhl, (Professor) Department of Food Technology, Engineering and nutrition, Division of Food Technology, Lund University Frans Melin (MBA PhD) Department of Business and administration, Lund University Ragnar Sjögren Johansen, (Marketing Manager Sauces) Procordia Food AB Problem: The market for daily groceries is mature and the competition has become tough. For the manufacturers to be able to grow they have to compete for the existing consumers. The problem is for the manufacturer to protect its consumers and still be able to gain consumers from its competitors. Purpose: Our ambition is to study consumers brand loyalty for daily groceries, with the purpose to understand how loyalty starts, how it can be strengthened, and how it can be broken.

Abstract The accident in 1986 at the nuclear power station in Chernobyl, Ukraine, dispersed radioactive cesium over large areas of Europe. The half life of 137Cs is 30 years and this radionuclide also behaves like potassium, which means that it can easily be taken up by the vegetation or be adsorbed in to the structure of clays, principally illitic clays. When radiocesium decays ionizing radiation is emitted, which is harmful to humans that are exposed, either directly or indirectly through food intake. It is there-fore important to know what happens to the cesium that is dispersed into the environ-ment. In this project a simulation model was constructed to simulate the adsorption and transport of radiocesium in the soil and plant uptake.

Hallsta paper mill uses large amounts of water during the pulp and paper making processes. The wastewater is treated in two separate activated sludge processes referred to as BIO 1 and BIO 2. The main aim is to reduce the organic substance content, measured as COD (Chemical Oxygen Demand) before the wastewater is released into the environment. Since the effluent produced is very rich in organic substances, the addition of nitrogen (N) and phosphorus (P) are necessary to give satisfactory treatment results. Problems with sludge bulking sometimes occur which lead to increased levels of suspended matter and nutrients in the effluent.

Chemicals in preschools - a study of endocrine disrupting chemicals and awareness among preschool teachers The purpose of this study was to investigate endocrine disrupting chemicals that have been shown in preschools and also the preschool teachers? awareness of these chemicals. There were two methods used for completing this study; a literature study and a practical study. The literature study was made by researching on the internet and in books. The practical study was performed by sending questionnaires to all preschools in Kiruna municipality to study awareness among staff.

This is an examination report in physical education. It focuses on the relation between excercise and nutrition and how this relation works in an icehockeygymnasium in a midsized city in Sweden. The training ratio for the students are 11-12 times a week which indirectly means that the nutricion is very important to them so that they have the strength to manage both training and school. In this examination report you can read about how the food is composed and how many meals the students are offered through their education program. The persons that I´ve interviewed are the head coach, the president of the school restaurant and three students.The students have practise in the noon two times a week, on Tuesdays and Thursdays.

From an environmental and climate perspective we are becoming more and more aware of what we eat. Consumers want to know how their food is produced and where it is coming from. A term commonly used in this discussion is local produce. At this time, there is no clear definition of the term and a wide range of definitions can be found. However, despite this lack of definition, the term is often being used by producers, traders and consumers..

The purpose with this essay is to explore the importance of Corporate Social Responsibility (CSR) within the food industry. We have decided to focus on how five different ethical labels are communicated towards students and the standpoint of the study is the students understanding of the communication. The labels that we have chosen to examine in the study are KRAV, Fairtrade, Svanen, Ekologiskt Jordbruk and Rainforest Alliance. The primary research question in the study is? How are the students purchase behavior affected by ethical labels in the food industry??.Throughout the study we will refer to CSR-products as products are stamped with one or several of the named ethical labels.

Background: When a child is diagnosed with food allergy with risk of anaphylaxis, it affects the whole family. The child must learn to live with a chronicle disease and learn the importance of avoiding the specific allergens that may cause a life-threatening condition. The parents must adapt to a way of life with limitations in the everyday life as well as a constant concern for the child. They must learn to handle an auto-injector and to recognize symptoms of a coming anaphylaxis. Aim: The aim of this study was to describe parent?s experiences of living with children who has foodallergy with special focus on anaphylaxis.

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Acid sulphate soils is a wide spread problem along the northern coast of Sweden. This is causing great damage through low pH and leaching of metals out into the streams. These soils are estimated to be found in several places in Sweden but also in many other areas in the world. One of these areas in Sweden that are believed to contain these sediments is Mälardalen. The purpose of this study is to evaluate the extension of the acid sulphate soils in this area.

The limit for mercury in fish, set by health authorities, is exceeded in about half of the lakes in Sweden. Methyl mercury (MeHg) is the most toxic form of mercury and accumulates in fish. Therefore transformation of inorganic mercury (Hg) to methylmercury (MeHg) is an important process that we need to understand in order to possibly counteract the negative effects of mercury in the environment. The seasonal dynamics of mercury biogeochemistry is likely of great importance for the accumulation of MeHg in the aquatic food web. In thesis the chemical speciation and transformations of Hg and MeHg in bottom waters and sediments is followed in Ängessjön, a small lake located on the east coast in the middle of Sweden. The lake is not directly affected by any industrial pollution and concentrations of Hg in the sediment reflect the atmospheric deposition in this area, as well as processes taking place along the hydrological pathways from soil to lake. Samples from sediment, bottom- and streamwater were collected in average every second month during the period Feb.

This bachelor thesis argues for consumers' views on origin labeling effect and their willingness to pay for goods with this kind of label. The purpose of this study is to analyze the factors that influence and to measure willingness to pay for a national origin labeled product previously only competeing with a less expensive conventional product, when a further regional product is introduced in the purchasing decisions of consumers. This is achieved by testing whether Simonson's (1989) theory of the compromise effect is applicable to increase consumers' willingness to pay for eco-labeled food products. The factors affecting the willingness to pay; trust in eco- label, opinions about the products of their own nation and the surrounding region. Furthermore presents theory about what underlying the consumer consumption choices.In order to achieve credible results 240 respondents have participated in a questionnaire survey.