169 uppsatser · sida 8 av 12
… the second phase, an in-depth study is being done involving sampling of soil water and ground water. The surveying made in this work is mainly a phase 1 study and the investigations were made with help from the County Administrate Board of Dalarna. The two industrial areas that …
biokol som organiskt material i substrat
… green roof industry. The substrate has been treated with different amounts of water. One serie of treatments did not get any water after planting, the other serie got watered three times during the experiment. As a reference the commercial used substrate, roof soil, where used …
påverkan och konsekvenser
… for the changes a dry food entails. The impact and implications regarding water intake, energy intake and blood glucose concentration when feeding the cat dry food where examined. The results shows that when dry food is fed, urine volume decreases and the water intake for every …
… sudden changes in ecosystems. I examined the predation from fish and waterfowl on benthic invertebrates in the shallow and eutrophic Lake Tåkern in the plains of Östergötland County, southern Sweden. The study was experimental and used exclosures (three types, eight replicates) …
This bachelors thesis was made for Wallenius Water AB to develop a basis for an Air purifier prototype. Wallenius Water is one of the world's leading environmental technology companies engaged in chemical-free water treatment based on UV-radiation. The thesis aim was to produce …
Every year, pesticides are found in surface and ground waters in Sweden. Fungicides are in common usage and applied in high amounts against potato late blight. The present thesis examined the possible removal of four fungicides (metalaxyl, cyprodinil, propamocarb and …
… replicates. The inoculants were freeze dried and in powder and was mixed with water prior to ensiling and dosed with four litres per ton forage. The untreated control was added water only. Additives were applied field chopper. Maize was ensiled in twelve trial silos. The silos …
bestämning av flödesvägar och åtgärdsförslag för optimal fosforbindning vid avloppsrening med reaktiva filter
Discharge of untreated wastewater leads to unnaturally high levels of nitrogen and phosphorus in rivers, lakes and the sea, which results in unbalanced ecosystems with eutrophication and lack of oxygen. Part of the phosphorus in surface waters is coming from on-site wastewater …
… experiment, and three soil parameters were examined: penetration resistance, water infiltration and infiltration of blue dye. Root shape was also examined. The site at Stävie was not harvested due to poor beet establishment. At the other sites, the highest yield was found when …
en bedömning av intresset för nya näringsrika produkter
… a quarter of the city of Stockholm, there are plans of building a local waste water treatment work. For Hammarby Sjöstad environmental questions and circulation of natural resources are in focus. Among other things the residents have plenty of information about how they can …
… conservation methods. A common solution in archives for the treatment of water-sensitive works on paper has been the use of heat-activated tissues as they can be applied without the introduction of solvents. There is little published about the use of heat-activated tissues on …
In connection with Henriksdals wastewater treatment plant (WWTP) a smaller plant is situated called Sjöstadsverket where new methods for wastewater treatment are tested and evaluated in different process lines. On one of the lines experiments with enhanced biological phosphorous …
… equally divided between three treatments, potassium nitrate, glutamine and water (control). The solutions were labelled with 15N in order to enable assessment of how the injected nitrogen compounds are distributed within the crown, as well as speed of translocation. Allocation …
… 21% of the total anthropogenic discharge of phosphorus into Swedish waters. About 40% of Sweden's nearly 1 million private sewage systems are inferior with respect to emissions to surface and groundwater. The technology of small sewage plants is under development and knowledge …
… These pathogens have the ability to survive for a long time in soil and water and therefore some sort of treatment of the sludge is recommended before use. Sanitizing treatments used today includes pasteurisation, composting and addition of lime. These treatments are less …
