Essays about: "Total organic matter TOC"

Showing result 6 - 10 of 20 essays containing the words Total organic matter TOC.

  1. 6. Hydrological catchment analysis from characterisation of organic matter in stream water

    University essay from Göteborgs universitet/Institutionen för geovetenskaper

    Author : Hannes Berg Wiklund; [2020-02-05]
    Keywords : Organic matter; Time-of-flight mass spectrometry; aquatic chemistry; catchment hydrology;

    Abstract : Organic matter (OM) in aquatic systems is a complex field which have rapidly developed during the last decade due to the introduction of high resolution mass spectrometers. The composition of OM in the aquatic environment is directly dependent on factors such as oxygen supply, pH and the flow rate in the local system. READ MORE

  3. 7. 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

  4. 8. 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

  5. 9. Factors Controlling Mercury Concentration in Rivers in the Mackenzie River Basin, Northwestern Canada

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

    Author : Jack Hewitt; [2020]
    Keywords : mercury; Mackenzie River Basin; regression; Canada; community-based water monitoring;

    Abstract : Mercury (Hg) in rivers and streams of the Mackenzie River Basin (MRB) presents a risk to fish, aquatic mammals, and humans. This thesis makes use of newly-released water quality data, including total mercury (THg) and dissolved mercury (DHg), gathered through the NWT-Wide Community-based Water Quality Monitoring (CBM) program. READ MORE

  6. 10. Spatial Variation of THg and MeHg Stream Concentrations and Its Relation to TOC

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Maria Tranvik; [2017]
    Keywords : Mercury; organic matter; catchment characteristics; GIS; deforestation; Kvicksilver; organiskt material; avrinningsområdesfaktorer; GIS; skogsavverkning;

    Abstract : Mercury (Hg) which originates from global emissions to the atmosphere can deposit far away from the source. There is often a weak correlation between Hg deposition and concentrations in runoff, therefore catchment specific parameters might be of importance in controlling the amount of Hg ending up in watercourses and fish. READ MORE