238 uppsatser · sida 6 av 16
comparisons with estimates of concentration addition and independent action
… 40% of the samples contained substances with concentrations higher than the Water Quality Standards. Chemical risk management is normally based on single-test evaluations. A problem when assessing mixture toxicities is that the constituents and concentrations of pollutants in …
Bakgrundshalter och rörmaterialets inverkan vid grundvattenprovtagning
… has been performed that investigates the variation of iron content in groundwater. The study was initiated by Midvatten AB, which noticed that the iron content in groundwater samples can vary greatly over small distances. The purpose of this study was to geochemically and …
… antifreezing agent can appear in a borehole and leak out in surrounding groundwater. To guarantee high quality drinking water for generations to come Sweden has dedicated some areas as water protection areas. The local authority gives permits for the installation of heat pump …
en litteraturstudie kring årstiderna och fodrets inverkan
… of pressed and ripened cheese. Milk is composed of proteins, fat, lactose and water but contains also a lot of vitamins. The quality of milk is very important for the final constitution of cheese. The processing of milk to produce enzymatic clotted cheese is briefly as follows …
… Master´s thesis focuses on three secondary heat sources; dry warm air, warm water and moisture saturated warm air located inside the pulp or paper mill. Two types of kraft digesters are simulated within this study, a typical Scandinavian digester and a modern twin vessel steam …
… systems households, industries and other activities are connected. The wastewater is collected at treatment plants where a nutritious sludge is produced. The sludge does not only contain nutrients, but also hazardous substances originating from different activities in society …
en styrkeanalys angående vattendrag i västerhavets vattendistrikt för fastställandet av provantal i tid och rum för ett effektivt omdrevsprogram
… the state of the environment. Sweden has been divided into five different water districts based on watershed areas because of requirements in the Water Directive of the EU. In Sweden there are two common types of environmental monitoring programs used to gather information on …
Geografisk och geologisk påverkan påkällvattens egenskaper
For centuries, springs have played a significant role in our society as water supplies, reasons for where to settle down, and in folklore. There are different reasons why and where a spring forms, e.g. in what kind of soil it has its outflow. Geographic and geochemical …
… not significantly different when using different fats. Differ-ent amounts of water were absorbed during the water cooling. The fat C cheese absorbed significantly less water than the other cheeses. The cheese made of fat C was significantly harder than the other cheeses. The …
analys av slakt-, styckning- och charkföretag
… emissions of climate gases and discharge of nutrients into the air and water. Cooperation with the authorities is considered by the certified companies to be less laboriously than for the other companies in the study. The result shows that when risk increase, perceived to be …
According to the Water Framework Directive of the European Union, macrophytes should be used as indicators in the ecological and environmental monitoring of lakes. In the member state Sweden the Environmental Protection Agency has elaborated assessment criteria for determining …
vad kräver livsmedelsbranschen?
… was on three sewage products; source separated urine, source separated blackwater (urine, faeces and flush water) and precipitated sludge from septic tanks. By making interviews with stakeholders representing the food industry and environmental organisations, different factors …
Considering water quality, landuse and reducion of wetland area in the watershed of Tidan, areas witch are in need of constructions to improve the water quality are identified. Constructions are suggested to be located within the smaller streams in the watershed, so that the …
… made by Carl Persson and Alejandro Saavedra for Gryaab. Gryaab is Gothenburg’s water processing plant and produces about 60 GWh biogas annually with a flow around 1150 Nm3/h. Gryaab wants to research their possibilities to become independent with electrical energy and the …
… maintenance of old ditches are operations having mainly negative effects on water quality, flora and fauna and changing characteristics of soil. The purpose of this study was to suggest a method for inventory of the need for ditching maintenance in old forest ditches that takes …
