Nanofiltration is a proper way of preparation of drinking water. The process has a lot in common with reverse osmosis where a semipermeable membrane is used to separate a pure water flow from the remaining water. A pilot plant was used to ensure that nanofiltration is a suitable technology for a specific waterworks station in Glemmingebro, Ystad. The purpose was also to find out if a pH-adjustment is needed for feed water in a possible full scale plant.  In this case nanofiltration is used mainly to remove sulphate and calcium since the raw water contains concentrations of these substances which exceed the limits for potable water. It is important to receive a high recovery (RC), otherwise the deliviery of water won?t be high enough.

This report is the documentation of a project in the education Master of Science in Mechanical Engineering. The project was carried out at Alfakonsult AB. The purpose of the project was to map out the transference of information between the different operators in the supply chain of medicine in Sweden and to analyse this in order to reduce lead-time and the total throughputtime. The supply chain of medicine in Sweden consists of producers, distributors, one wholesaler, prescribers and patients. The mapping of the transference of information showed that most operators in the supply chain have done well introducing technical aids to facilitate the transference of information.

The market communication in organisations is vital to manage the competition. Studies have shown the importance of market communication in both private and public organisations.Since the past decade market communication has been acknowledged as an instrument to provide the organisations target group with valid information.This thesis is a study about the differences in market communication between private and public organisations. To manage this we asked ourselves the question:?- What distinguish the market communication in a private respective a public organisation??We have done qualitative interviews to get the best result for our study. We have interviewed both types of organisations and our respondents have leading strategic position in their organisations.Our research highlights important differences between private and public organisations in matter of tactics in market communication.In conclusion the result shows a great difference in how an organization is managing their communicative strategies all depending on if it is a private owned company or a public organisation..

Eutrophication of the Baltic Sea and Swedish lakes remains a major problem despite many years of effort to reduce the emissions of nutrients. One major source is waste water systems, especially private sewage systems. These sewages accounts for a very large share of nutrients per capita in comparison with citizens connected to larger sewage treatment plants. Norrtälje community has the greatest number of private sewage systems in Sweden. Discharges of nutrients, especially phosphorus, to the Baltic Sea from these sewage systems are significant.

The purpose with this study has been, based on different public and private procurement conditions, to measure if there are any significant differences in the business relations between public- and private institutional kitchens. Furthermore, to observe what important influencing factors there are to maintain and develop a relationship between a producer and customer. The result of the analysis shows that there are important factors that influences on the trust in the relationship between a producer and customer. These factors are product- and service exchange, communication, strategic purchase and social exchange. In this examination we have showed that there are differences in the relationship between public- and private customers.

Pulp- and papermills expend vast amounts of water in order to produce pulp, paper and cardboard. Hence, they alsocreate vast amounts of waste water which has to be cleaned before it can be released into the receiving body of water. Insuch a wastewater treatment plant, tremendous amounts of energy are expended by the aeration in the biologicalcleaning process. This aeration is necessary to supply the microorganisms that shall decompose organic material withoxygen, which they need for their metabolism. The transfer of oxygen from the gas phase to the liquid phase isprimarily inhibited by surface-active substances in the waste water like resin acids or fatty acids.

Den växande e-livsmedelshandelns Supply Chains har studerats genom hållbarhetsglasögon där syftet var att ?[?] ge en fördjupad förståelse över hur svenska elivsmedelsaktörerarbetar med frågor rörande Sustainable Supply Chain Management?.Syftet fullgjordes genom en kvalitativ studie av tre organisationer, i vilka totalt 9 beslutsfattare intervjuades enligt ett semi-strukturerat intervjuförfarande. De data som samlades rörande e-livsmedelsaktörernas arbete med SSCM har i sin tur analyserats med hänvisning till en i förväg fastställd teoretisk referensram.Vår studie avslöjar att två av de svenska e-livsmedelsaktörerna är exemplariska och framstående med att införliva hållbarhet i sin Supply Chain. De engagerar sig aktivt i de initiativ för Sustainable Supply Chain Management som i litteraturen identifierades som nödvändiga för en verkligt hållbar Supply Chain. De har en allomfattande och övergripande strategi för att minimera den sociala risken, reducera resursutnyttjande och förorenande biprodukter i hela Supply Chain samt för att förbättra organisatoriskt inbäddade ohållbara vanor.

The aim of this work was to find out what potential contaminants from roads, residential area and businesses within Svedens industrial area that can affect groundwater quality and quantity. Data collection was from SGU, VISS, internal material from Gävleborg county Administrative Board and Gävle municipality archive. GIS software ArcGIS was used to create the map images in the work. The studied area is located approximately ten kilometers west of Gävle city and consists of the esker Valboåsen, which is a glacifluvial deposit that in its central parts consist of coarse material that is overlaid by sand, clay and silt. North of esker Valboåsen there are the river Gavleån which has an inflow to the groundwater in the esker. This inflow represents the largest part of the groundwater recharge.

Recently, retailers within the Swedish grocery retail sector have launched lines of products under its own brand, quite often produced by manufactures within the same category of products. The common term of this phenomenon is called private labels. Therefore, private labels could be seen as competitors against branded goods, despite the fact that it is, in several cases, the same manufacturer who produces each of the products.The main purpose of this study is to provide understanding of how the manufacturers choose to position themselves, formulate their strategies and compete on the market among private labels, also to examine the motive behind the manufacturer's choice to produce private labels. The study intends to provide a broader view of how the interaction between manufacturers, retailers, private labels and branded goods appears on the Swedish market. We decided to use a qualitative research method and personal interviews to approach the study.

The filters used today to purify water are often expensive and the need to find new filter materials is substantial. Studies of pine bark have shown that this is a material that may be used as an alternative to conventional filter materials, such as activated carbon. However, the study of pine bark has shown that a leakage of phenolic compounds may occur when using the material for water purification. Therefore, the purpose of this report is to investigate the release of phenols from pine bark, in order to evaluate the use of pine bark as a filter material. Another assignment is to investigate the amount of metals adsorbed by the filter material.

In most countries, the dairy industry focuses on the volume of milk produced instead of its composition. This results in a high content of water and a lower proportion of fat and protein. A high proportion of water is not desirable when processing the milk into various dairy products like cheese, cream and milk powder. High water content also increases the costs for transport and storage, and also an unnecessary, albeit marginal, strains on the world?s water reservoir.

The thick-shelled river mussel (Unio crassus) is a red listed species classified as Endangered (EN) and is also considered within the Habitats Directive. The distribution in Sweden is fragmented and it is mostly occurring in the south eastern parts. We investigated the presence of Unio crassus in a section of the stream Storån, Östergötland County, from Falerum to the inflow into Lake Åkervristen. The environmental parameters investigated were water depth, bottom substrate, shading, water velocity and the slope over the water surface. In this thesis I have focused mainly on water depth and shading, comparing sites with and without mussels.

The master thesis, conducted at Metrima AB, concerns the development of a non-intrusivedistribution meter as a basis for individual tap water billing in apartments.The project is conducted in response to the market interest in individual tap water billing inapartments as an answer to environmental concerns regarding water consumption. Due to thehigh installation cost of traditional water meters, a new method of determining waterconsumption, without having to cut water pipes, is proposed.The proposed method distributes the total water consumption for an apartment complex toindividual apartments according to distribution meters, measuring water run-time, in eachapartment. The water run-time is estimated by measuring the water pipe?s outward vibrationsand temperature changes.A test environment was established and a prototype built, using a tilt- and vibration sensor forvibration sensing and a precision temperature sensor to measure temperature changes. As bothsensors work well in the test environment, further testing was done in 3 apartments for aduration of 5 days.

This master thesis is developed based on the desire of the water and sewage department in the municipality of Karlskrona. The department, which vouches for the quality of produced drinking water and sewage cleaning, was in need of help dealing with risk analysis.The water and sewage department is obliged to identify and assess risks according to Swedish legislation. However, no guides for this purpose regarding safety, health, environment and quality were available. The aim of this report was to accomplish a guideline for the performance of risk analysis within water and sewage plants. If the guideline is used, the requirements in the legislation will be obtained.

Purpose: To contribute to the understanding of the relationship between private labels and the retailer brand in grocery retailing. Methodology: We use structured interviews as a cross-sectional method for quantitative data collection. The existence of the relationship is tested through correlation analysis and regression analysis. Theoretical perspective: Perceived quality of private labels and of retailers are the main theoretical concepts for this thesis. Additionally, we introduce the concept of loyalty to show the benefits of a positive consumer image.