169 uppsatser · sida 7 av 12
Studie av olika metoder för att reducera bakterier
… an attractive feature in a dishwasher. There are many different ways to treat surfaces that have been exposed to the bacteria. Some high-profile methods are UV-radiation, microwaves and oxidant (ozone) that all three have had success in reducing bacteria in different contexts …
Kontroll och utvärdering av olika rengöringsmetoder på restauranger i Södra Roslagen.
… Täby and Vaxholm). ATP-measuring was done on a plate, a knife, a bench surface and a cutting board. The ATP-method measured the amount of food residue on equipment and working surfaces after cleaning, with a luminometer and swabs. Restaurant staffs were asked to describe in …
… the rest of the sample. The difference in potassiumconcentration between the surface and the walls of the catalyst is rather small. The concentration of lead on the other hand was found to be constant along the catalyst, but the concentration on the surface is much higher than …
en studie på fastigheten Bodsjölandet 1:14 avseende den nedlagda tjärfabriken i Grötingen
… out at the site. It included sampling of soil, sediment, groundwater and surface water together with sample analysis of heavy metals and organic pollutants. The result of the analysis shows that very high levels of the contaminants PAH, aromatics and lead are found in both soil …
en lönsam investering för ett lantbruk?
… and electricity. The requirement to use the sun in this fashion is a suitable surface, for example a big roof, an angle between 40-60 degrees and that the surface should be exposed to the south. Almost every farm meets these requirements. Hence, the aim of this essay is to se if …
Simulering av lagerutformning och konsekvensen av adderade uppvärmningsbehov motsvarande en pool och ett atrium
… is partly due to losses from the storage which in turn is connected to the surface area of the storage. The bigger a storage, the smaller the losses because of the decreasing relationship between surface area and storage volume. Looking at the size of the seasonal storages that …
… an acoustic modem to transfer captured information from the bottom to the surface, wirelessly through the water. The information is then sent fron the surface on radio waves through the GSM network to the office on land. Between under and over water there are components to …
… in the beginning of the 1990s but an estimated 2 000 m³ of oil is left on the surface and in cracks in the rock face. The cavern is not clad which means that the oil was stored on a water bed directly against the rock wall. Today the water surface is kept at a lower level to …
Slopes in fine till soils are exposed to surface erosion due to rainfall, snowmelt and upland water sources. Large areas of road slopes are therefore covered for surface erosion protection. Preventive methods like ditches and trenches are also being used. Silt tills are …
analys och metodutveckling
… with good flexibility and a minor amount of change in colour on the printed surface but was not always the appropriate choice
… also its drainage capacity, thus leaving more water standing on the ground surface. Channels can be dug from the river in to the meadows, increasing the supply of water when the level of the river is high enough.
… an allotment garden area. In the proposal there is a strategy for the surface water. The water is gathered in an artificial lake. Through the area there is a runnel, which is very polluted. An artificial lake delays the water and cleans it.
… that can appear in the surroundings due to a declining groundwater surface. The aim of the study was to investigate different methods for predicting leakage and changes in groundwater level due to tunnelling excavations in rock. This thesis was performed by comparing …
-bedömning av dagvattenkvalitet
… methals. Since the population has increased for decades, the area of hard surfaces and asphalts areas also has increased. This can increase the pollutions that finally ends up in the recipient. Depending on what activity that is going on in the nearby area the pollutions that …
Desinfektion med ånga
… technology chosen for development is disinfection by heating the water on the surface of the dishware, by the use of steam. A number of tests on how steam behaves when injected into the dishwasher tub have been performed, providing the results that have been taken in …
