Sökning: "Vattenkemi"
Visar resultat 1 - 5 av 35 uppsatser innehållade ordet Vattenkemi.
1. Reactor Chemistry in LWR SMRs : Determination of the rate constant for the reaction between boric acid and hydroxyl radicals
Master-uppsats, KTH/Tillämpad fysikalisk kemiSammanfattning : Ett problem vid byggandet av nya kärnkraftverk för elproduktion är de stora investeringskostnaderna samt den långa tiden det att få tillstånd för en reaktor och bygga den. Nyligen färdigställdes den tredje reaktorn vid Olkiluoto I Finland, den tog 18 år att färdigställa exklusive tiden att få tillstånd för reaktorn. LÄS MER
2. Ecological impacts of dam removal in Swedish inland waters : Effects on water chemistry and fish demography
Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)Sammanfattning : Dams play an important role in our society, but their negative impacts on aquatic ecosystems have led to a need for conservation efforts to mitigate the negative effects. In some instances, dam removal has been suggested to be the most economically and ecologically beneficial restoration method to improve longitudinal connectivity. LÄS MER
3. Effects of vegetation and nutrients on methanotroph abundance and methane emissions from constructed wetlands
Master-uppsats, SLU/Dept. of Aquatic Sciences and AssessmentSammanfattning : 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). LÄS MER
4. Återvätning av Hakamosse : En vattenkemisk undersökning samt underlag till kontrollprogram
Kandidat-uppsats, Högskolan i Halmstad/Akademin för företagande, innovation och hållbarhetSammanfattning : Historically, approximately 25% of Sweden's wetlands have been ditched and drained in favour of agriculture, forestry, infrastructure and peat extraction. Major investments have been made in recent years to recreate the natural and environmental benefits that have been lost. LÄS MER
5. Modelling the Effects of Climate Change on Future DOC Export to Lake Mälaren Using a Generalized Watershed Loading Functions (GWLF) Model
Master-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : Browning of boreal freshwaters due to an increased export of terrestrial dissolved organic carbon (DOC) has been observed for some decennia. Drivers include recovery from acid deposition and changing climate and land cover. LÄS MER