Essays about: "kväve"
Showing result 31 - 35 of 310 essays containing the word kväve.
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31. En hållbar kompost : förutsättningar på Habo gård
University essay from SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)Abstract : Den här kandidatuppsatsen är gjord för att ta reda på ifall det är möjligt att skapa en hållbar kompost på Habo gård. Därtill finns stora mängder organiskt material som inte utnyttjas på Habo gård i näringskretsloppet. READ MORE
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32. Emission of greenhouse gases from constructed wetlands : Nutrient status in relation to methane and nitrous oxide emission
University essay from Uppsala universitet/Institutionen för geovetenskaperAbstract : Agricultural land releases large amounts of nitrogen and phosphorus to water bodies which causes eutrophication. Creating wetlands on agricultural land is one way to prevent this major issue. However, constructed wetlands are a large emission source of greenhouse gases. READ MORE
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33. Aquaculture and its effect on the wild fish resource in a Swedish lake : An evaluation of changes in fat content, protein content and trophic niche
University essay from SLU/Dept. of Wildlife, Fish and Environmental StudiesAbstract : Fish is nutritious and important as a food source for many people. It contains high levels of protein, important omega-3 fatty acids as well as micronutrients. For a sustainable fish consumption, aquaculture is needed but it can affect nearby ecosystems in many ways. READ MORE
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34. Effects of vegetation and nutrients on methanotroph abundance and methane emissions from constructed wetlands
University essay from SLU/Dept. of Aquatic Sciences and AssessmentAbstract : Agriculture is the largest anthropogenic source of nitrogen and phosphorous (P) leakage to Swedish coastal seas, causing eutrophication which threatens marine ecosystems. Constructing wetlands is one way to improve nutrient retention in the modern agricultural landscape. However, constructed wetlands can emit substantial amounts of methane (CH4). READ MORE
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35. A case study of estimating Algal biomass productivity from wastewater treatment facilities in the state of Texas and possible use
University essay from KTH/KemiteknikAbstract : För att hålla vattendragen och miljön rena, renas avloppsvattnet för att nå ett visst mått innan det släpps ut. Vi gjorde en fallstudie för att utvärdera metoderna som används för att behandla avloppsvatten i tre steg: primär, sekundär och tertiär i delstaten Texas, USA. READ MORE