AbstractAt the UN Conference on Environment and Development in 1992 the nations stated that traditional environmental policies were not sufficient to handle the multidimensional challenges posed by sustainable development. Governments needed to broaden their political decision making procedures in order to coordinate and integrate environmental, social and economic policies. Therefore a new tool was introduced in Agenda 21, National Strategies for Sustainable Development (NSDS). The aim of an NSDS would be to bring together actors from all parts of society to jointly reach a consensus on how to work towards the vision of a sustainable society. An NSDS would be seen as a strategic tool to help focus national policies for SD.

The prevailing food and energy crisis of the world, due to the declining reserves of fossil energy and a never ending rise of consumption, forces us to look into new fields to supply our energy demand. The boom of bio energy is criticized, as food crops are used to provide biodiesel and ethanol and the volumes are ridiculously small to supply world demand. Algae are one of the world?s oldest life forms and exist in many different phyla, providing a great variety to choose from, for different purposes. Cultivating microalgae offer a way to produce energy at great volumes without competing with food production and at the same time the algae offer a way to use our expensive nutrients in a more efficient way, besides this the algae are carbon dioxide neutral since their carbon source can be supplied by the atmosphere and the additional energy required can be supplied by algal oil or other renewable sources.

In order to avoid harmful substances ending up at the municipal sewage treatment plants, it is important to purify the wastewater at the source. One such source is the wheel washers available in many tire garages which are used to wash the wheels on our vehicles when we change between summer and winter tires. It is important to wash the wheels before storage, to extend the tires lifetime. The purpose of this study is to find a green innovative solution for reduction of emissions of heavy metals at the source, so that the sludge from the sewage treatment plants can be used as fertilizer. The target is to find a wheel wash method which leads to compliance with the guidelines for car washers, and that also provides a better washing result than with the existing method.

This study was made as a part of a feasibility study on a polishing wetland at Rimbo wastewater plant (wwp) in Norrtälje municipality. The wwp had to decrease the nitrogen discharge to reach the limit 15 mg tot-N/l. The nitrogen in the outlet was mainly in the form of nitrate, hence the wetland mainly ought to support denitrification. The proposed area for the wetland was situated right next to the wwp and was already in the municipalitys posession. One aim of this study was to examine what spieces of plants needed to achieve highest possible denitrification.

Because of the increasing trends in energy consumption and increased environmental awareness, greater focus has been placed on improvement and development of renewable energy sources. An already proven and accepted method is biogas production from anaerobic digestion at municipal wastewater treatment plants.In the waste water treatment process solid material and dissolved pollutants are separated from the water, forming a sludge. The sludge is separated from the process and stabilized during anaerobic digestion or aerobic aeration. Most often, mesophilic anaerobic digestion is used. Because of degradation by microorganisms, biogas with a high content of methane is formed during the digestion.

Syftet är att genom ett Service Management-perspektiv studera huruvida implementeringar av Lean Thinking i serviceorganisationer skapar möjligheter för ökat värdeskapande för såväl kund som organisation. Huvudfrågeställningen ser ut som följande: Hur påverkas värdeskapandet i serviceorganisationer vid en implementering av Lean Thinking? Vi har betraktat två skilda serviceorganisationer som implementerat Lean Thinking - Fritidsresor och Universitetssjukhuset i Lund - genom en kvalitativ forskningsmetod. Semi-strukturerade intervjuer har genomförts med intervjupersoner från respektive studieobjekt. Genom en litteratusstudie av Service Management- och Lean Thinking-teorier har såväl likheter som skillnader i perspektivens syn på värde och värdeskapande illustrerats.

Presentation av säljledaren och dennes roll i en försäljningsorganisation. Argumentation för att säljledaren skall arbeta aktivt tillsammans som coach med säljarna ute på fält..

The purpose of this paper is to examine the correlation between hotels, their brands and the frontline staff within the industry. A competitive, international environment characterizes today´s hotel industry where brands are one of the strongest sources for a successful position amongst competitors. In the brand delivery, the front line staff is of utmost importance since they in many ways incorporate the brand values and the projected identity of the hotel. Hotels can use a variety of ways to communicate the brands identity to the front line staff in order to create the desired brand behavior, some more effective than others. At the same time the Swedish hotel industry, as many other, is characterized by a high percentage of staff turnovers.

Vårterminen 2006.

Arvika Fjärrvärme AB, a district heating company from Arvika, today cover 74 % of their total energy production with biofuel wich runs a 16 MW bioler giving process water at saturated liquid state.In recent years Vaporel AB has introduced a new tecnique that gives an external generation of steam after boilers. The concept is built on an adiabatic pressure drop of the saturated liquid in a so called Flashbox which makes a small part of the liquid to evaporate. The generated steam is lead into a turbine where electricity is in a conventional manner.The purpose with this rapport was to do a basic study for the specific system at Arvika where it?s possible to see the potential production of electricity that follows an installation of a flasbox.The final goal was to introduce an economic analysis of a flashox installation at given conditions.To reach our goals we have created a model in Excel where we used the given conditions at Arvika Fjärrvärme to do our calculations. The model has been tested at three different states, of process water returning to potboiler, to be able to decide the optimal operation for the system at present.The studies have resulted in a pressure of the processwater at 14,5 bar (at) and a pressuredrop to 9,5 bar (at) in the flashbox.

Syftet med denna uppsats är att undersöka vilka effekter ett styrsystem som Value Based Six Sigma gett för ITT Flygt. VBSS har influerats av främst Six Sigma men även Value Based Management och Nimbas värdemodell. Dessa begrepp presenteras närmare i uppsatsens teoriavsnitt..

Pharmaceuticals that are found in marine ecosystems are a threatening environmental concern, which is known to harm both animal and plant life. One of the reasons for this problem is that the waste water treatment techniques are not optimized to clear waste water from its pharmaceuticals contain. In this master thesis four Swedish treatment wetlands were studied, and their ability to reduce numerous pharmaceuticals in waste water. The four treatment wetlands that were studied were those in Oxelösund, Trosa, Nynäshamn and Eskilstuna. Two ecotoxicological tests and chemical analysis were used.

In this essay, Risk and crisis management Conservation policy and normalization production, I discuss how societies, communities and individuals are responsible for the handling of catastrophes and crises. Risk and vulnerability analyzes are parts of modern risk and crisis management. The purpose of these analyzes is to prepare people and organizations for any crises. For managing this it is necessary to comprehend, be able to change mindset in creating concrete tasks and inform others.The purpose of this essay is to analyze modern risk and crisis management by studying empirical material, such as interviews, observations and literature. My aim is to combine these materials and study how they cooperate.One of the findings in this essay is that risk and vulnerability analyzes are of great complexity. These analyzes require a discussion in order to identify the development of the society's crisis management system, as well as the continued support of the individuals that have a responsibility for preventing and preparing their organizations..

In times of increased flooding, enhanced by climate change, polluted stormwater poses an increased threat to the environment through contaminated water entering waterways. Bioretention utilizes natural processes in soil and vegetation to treat pollutants and combat this threat. Biochar produced through pyrolysis, has a high cation exchange capacity (CEC) and could therefore increase treatment in bioretention systems. This research applies a literature review, interview, and a model to explore the benefits and disadvantages of biochar in order to specify a soil-mix through an understanding of the production process and preferred application rate. High purification through CEC, increased water holding capacity, and carbon sequestration being the benefits discussed.

Sustainable development in geographic in compulsory school.