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Showing result 1 - 5 of 10 essays matching the above criteria.

1. 1. REMOVAL OF PFAS FROM WASTEWATER THROUGH ADSORPTION AND SORBENT INCINERATION

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : Aston Sandblad; [2022]
   Keywords : PFAS; Adsorption; Incineration;

   Abstract : Per- and polyfluoroalkyl substances, PFAS, are a manufactured group of chemicals that have been found to be toxic to humans and the environment. Exposure to PFAS may include birth defects for infants as well as an increased risk of cancer. READ MORE

3. 2. Patterns and factors affecting brownification in a boreal river

   University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

   Author : Emil Winqvist; [2021]
   Keywords : Bolmen; brownification; precipitation; discharge; sulfur deposition; land use; trend analysis; Technology and Engineering;

   Abstract : During the last decades a brownification of the lakes and streams in the northern hemisphere has been observed. The change has been attributed to an increase of organic content in the water, leached from the top soil layers, called humic substances. READ MORE

4. 3. Impact of different catchments on the Brownification of Lake Bolmen

   University essay from Högskolan i Halmstad/Akademin för ekonomi, teknik och naturvetenskap

   Author : Kaela Chileshe; [2020]
   Keywords : Brownification; dissolved organic carbon DOC ; Iron Fe ; water colour; landscapes; climate change;

   Abstract : Increased DOC and Fe concentrations from terrestrial landscapes has led to the browning of boreal surface waters. The negative societal and ecological impacts of brownification are increased cost of water purification, increased presences of algae and cyanobacteria, loss of ecosystem services and reduced recreational value. READ MORE

5. 4. Sputtering of High Quality Layered MoS2 films

   University essay from Uppsala universitet/Fasta tillståndets elektronik

   Author : Sari Abid Al Shaybany; [2020]
   Keywords : MoS2; molybdenum; molybdenum disulfide; sputtering; magnetron sputtering; high quality; sulfur; H2S; argon; pressure; temperature; high temperature; monolayer; few layers; large scale;

   Abstract : We have deposited bulk, monolayer and few-layers as well as large-scale 2D layered MoS2 thin films by pulsed DC magnetron sputtering from an MoS2 target. MoS2 has gained great attention lately, together with other layered Transition Metal Dichalcogenides (TMDCs), for its unique optical and electrical properties with thickness-dependent bandgap. READ MORE

6. 5. Aerosol Input and Snow Accumulation Rates on the Northern Greenland Ice Sheet : Reconstructed by means of Continuous Flow Analysis (CFA) of 6 shallow firn cores

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Patrick Stephan Zens; [2018]
   Keywords : continuous flow analysis; Greenland; shallow firn core; aerosol; snow accumulation; glaciochemistry; kontinuerlig flödesanalys; Grönland; grunda firnkärnor; aerosol; snöackumulering; glaciokemi;

   Abstract : Ice, firn and snow cores from the Greenland ice sheet offer a unique opportunity to reconstruct past climate conditions. These can be analyzed with continuous flow analysis (CFA) in order to acquire proxy information about ancient atmospheric aerosol concentrations, snow accumulation rates or temperature variations, atmospheric composition, solar activity as well as volcanism and biological activity. READ MORE