175 uppsatser · sida 5 av 12
Kartläggning av inkommande avloppsvatten och optimering av driftparametrar
… uses large amounts of water during the pulp and paper making processes. The wastewater is treated in two separate activated sludge processes referred to as BIO 1 and BIO 2. The main aim is to reduce the organic substance content, measured as COD (Chemical Oxygen Demand) before …
Fundamentteknik och Logistik
An analysis of a specific application of anaerobic wastewater treatment at a pulp and board mill, Stora Enso Skoghall, was carried out. A literature study was done and effluent wastewater from CTMP pulp production was analyzed. The analysis consisted of a broad constituent …
… of environmentally hazardous activities. The responsibility for deposited waste is primarily with the depositor and secondly with the landowner. The inventory and compilation show that the Energy division has two properties with major pollution problems. At the KV1 site a gas …
… higher than that. This is the biggest reason why prosumers must deliver their waste heat to a low temperature network. A study in which waste heat from Akademiska Hus was delivered to the network was made to analyze how a prosumer may affect the district heating network. To be …
en förstudie på förväntad kväveavskiljning och lämplig växtlighet
… 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 …
The most common way to treat wastewater in Sweden today is by a combination of an activated sludge process and a chemical treatment. These processes are not very energy efficient and may not be the most environmentally friendly. That is why it is interesting to evaluate new …
att gestalta praktfulla parker som kan skötas på ett hållbart sätt
… maintenance. The purpose has also been to see if it's possible to use city wastewater in some extent to assure the plants water supply and to find other means to make it less necessary to use purified water for watering. Recently made studies as well as older ones show how …
… iron refining process in Vitåfors, Malmberget, is a source of great amounts of waste-rock. Most of the waste rock is, after separation from the ore, deposited dry in special storeges. But the finer fractions of waste rock, tailings, must be separated from the process water by …
ITT Water & Wastewater ställer höga krav på kostnadseffektiv produktion vilket är en starkt bidragande orsak till att företaget är världsledande på sin marknad. För att erhålla kostnadseffektiv produktion har kombinationen människa robot visat sig vara framgångsrik …
… 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 …
En studie av fyra svenska våtmarker för avloppsrening
… 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 …
Underlag för internationella riktlinjer inom projektet Sweden Textile Water Initiative
The aim of my thesis is to obtain knowledge of textile wastewater and textile sludge from an environmental perspective, which can be used as a basis for the ”Sweden Textile Water Initiative” guidelines for a sustainable sludge management. In my study I have mainly focused on …
… in Främby by con-necting the contaminated water from the mining area with the waste water though a chemical treatment. In the year 1987 the treatment successfully began and the same year the Swedish government financed a delegation, called Dalälvsdelegationen, and its purpose …
… predominately comes from sewage water sludge and landfills or from organic waste of households and industries. Small scale digestion plants at farms are espe-cially expected to contribute to increased biogas production in the future. Biogas can be ob-tained directly in it’s raw …
undersökning av fosforhalter
… (1370 kg gross phosphorus/year). The net phosphorus load from the private waste water is approximately 320 kg. The atmospheric deposition and the leakage from forest, swamps and open fields is all together approximately 390 kg gross phosphorus/year, natural sources that are hard …
