24 uppsatser · sida 1 av 2
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 …
… 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. The purpose of thisthesis has been to determine if the surface-active substances can be removed by means of chemical …
rensning av stopp samt uppsamling och attityder
… the oxide that had been formed in the water locks and left a smooth copper surface. Those chemicals did not need any particular rinsing afterwards. The use of socium hydroxide can increase the urine solution's pH in the collection tank while acids can reduce the pH level. A high …
studie av påverkande faktorer
… and this has influenced the water quality negatively. The waterworks is a surface waterworks which takes its raw water from the lake Sjöbysjön. The water is flocculated and filtered in a contact filter with the flocculent EKOFLOCK 91. Thereafter it is alkalinized before it …
Vass, bredkaveldun och gäddnate i Bergviks dagvattendamm
Abstract Surface-water includes different kinds of pollutants from traffic and roads. To prevent these pollutants to reach nearby lakes one can construct surface-water ponds on locations with heavy traffic. At Bergviks shopping centre in Karlstad, two ponds, one smaller and one …
Investigation of bondning mechanisms at the pressing of metal laminates
… of the mechanisms that operate in conjunction with the welding of metal surfaces may help to improve existing manufacturing processes, and to enable new products and combinations of materials. The purpose of the project has therefore been to acquire a deeper understanding of …
Extremt snålspolande toalett
… for cleaning the toilet-bowl. The toilet-bowl is treated with a low friction surface during production, which makes the cleaning process more reliable. The authors are very pleased with the developed concept since the solutions and the design of the toilet are comparable with a …
panna 5, Mälarenergi AB, Västerås
… are being transported out of the combustion chamber. When particles encounter surfaces either a reaction between the particles and the materials of the surface takes place or a new layer builds on top of the surface. These layers of particles decrease the efficiency of the …
an investigation of the effect of ageing on the hygienic status of rubber liners and tubes
… as well as deposits of organic and inorganic material is formed on the surface. Bacterial colonization can accumulate, especially on ageing rubber equipment and if the cleaning procedure is not functioning properly. Formation of biofilm in milking equipment could in turn cause …
… to deal with this problem. One action is by choosing allergy-free interior surface materials. An allergy-free material emits low concentrations of harmful substances resulting in a great indoor air quality. An allergy-free living demands a frequently cleaning and resistant …
Vilka faktorer ger elever motivationoch lust att lära matematik?
Drinking water is produced from raw water and is either from groundwater or surface water. This thesis aims to find out if the cleaning process of raw water is sufficiently effective. This is important because consumers are otherwise at risk of waterborne infection caused by …
Elevernas intresse- problem eller resurs?
Drinking water is produced from raw water and is either from groundwater or surface water. This thesis aims to find out if the cleaning process of raw water is sufficiently effective. This is important because consumers are otherwise at risk of waterborne infection caused by …
Matematik och elevmotivation
Drinking water is produced from raw water and is either from groundwater or surface water. This thesis aims to find out if the cleaning process of raw water is sufficiently effective. This is important because consumers are otherwise at risk of waterborne infection caused by …
Drinking water is produced from raw water and is either from groundwater or surface water. This thesis aims to find out if the cleaning process of raw water is sufficiently effective. This is important because consumers are otherwise at risk of waterborne infection caused by …
… at the Studerandekliniken than at Näsby FTV. Progression on one or more surfaces where found for 67 % of the individuals at Studerandekliniken compared with 90 % at Näsby FTV. Only a few individuals showed progression on ?10 surfaces. Several individuals get more than one …
