Essays about: "Total Organic Carbon TOC"

Showing result 11 - 15 of 50 essays containing the words Total Organic Carbon TOC.

1. 11. Hydrodynamic modelling of fate and transport of natural organic matter and per- and polyfluoroalkyl substances in Lake Ekoln

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Frida Ekman; [2021]
   Keywords : Ekoln; Natural organic matter NOM ; Total organic matter TOC ; Colour; degradation; sedimentation; photooxidation; PFAS; MIKE 3 FM; Ekoln; naturligt organiskt material NOM ; totalt organiskt kol TOC ; färg; nedbrytning; sedimentation; foto-oxidation; PFAS; MIKE 3 FM;

   Abstract : Societies are facing great challenges with obtaining a good quality and quantity of drinking water in the context of climate change. Increases in natural organic matter (NOM) and per- and polyfluoroalkyl substances (PFAS) have been observed in lakes and drinking water the past years, which is of great concern for water treatment plants in Sweden. READ MORE

3. 12. Influence of land cover changes on organic carbon and organic nitrogen concentrations in Swedish rivers

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Julia Iwan; [2021]
   Keywords : Total Organic Carbon TOC ; Total Organic Nitrogen TON ; Land Cover Change; Sweden; WaterBase; Earth and Environmental Sciences;

   Abstract : There is increasing pressure on freshwater systems due to excessive nutrient loading by anthropogenic sources. In Sweden, freshwaters have become browner due to increasing exports of organic matter from soils into streams, rivers, and lakes. READ MORE

4. 13. Development and Testing of a Hydro-Chemical River MixingModel to Investigate Sources of Carbon and Mercury in the Mackenzie River Basin, Canada

   University essay from Uppsala universitet/Luft-, vatten- och landskapslära

   Author : Torbjörn-Johannes Erikson; [2020]
   Keywords : mercury; Hg; POC; DOC; Mackenzie River; kvicksilver; Hg; DOC; POC; Mackenziefloden;

   Abstract : Mercury, Hg, is found in Arctic biota in alarming quantity, posing a potential health risk for the local population. It is believed that the large Arctic rivers contribute to this. The Mackenzie River annually transports approximately 325 km3 water to the Arctic Ocean, which is ca 10% of the freshwater received. READ MORE

5. 14. Decreasing organic nitrogen concentrations in European water bodies - links to organic carbon trends and land cover

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Alexis Cazorla; [2020]
   Keywords : geography; GIS; physical geography; organic nitrogen; organic carbon; land cover; eutrophication; Europe; Earth and Environmental Sciences;

   Abstract : European rivers experience increasing concentrations of total organic carbon (TOC) from terrestrial sources due to factors involving changes in land use, climate and soil acidity. However, low interest is given to the evolution of total organic nitrogen (TON) concentrations in surface waters, the links with TOC concentrations and the influence of the surrounding land cover on nutrient inputs. READ MORE

6. 15. Total Organic Carbon Reduction of Sorting by-Product Fractions

   University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomi

   Author : Ahmad Abdul Rahman Al Saheb; [2020]
   Keywords : Total organic carbon; Loss on ignition; construction and demolition waste; TOC reduction; recycling; sequential separation treatment; converting waste to product;

   Abstract : The drive of the EU countries and most of the world towards a circular economy and togenerate zero waste raised a need to study more efficient and less costly treatment processes. The treatment of secondary and by-product fractions to convert them from what is considered waste to a resource will contribute to the movement towards zero waste and circular economy. READ MORE