Essays about: "humusämnen"

Showing result 1 - 5 of 7 essays containing the word humusämnen.

  1. 1. Modelling the Effects of Climate Change on Future DOC Export to Lake Mälaren Using a Generalized Watershed Loading Functions (GWLF) Model

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Klara Lindqvist; [2022]
    Keywords : Hydrology; DOC; browning; climate change; drinking water production; Mälaren; Hydrologi; DOC; brunifiering; klimatförändringar; dricksvattenproduktion; Mälaren;

    Abstract : 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. READ MORE

  3. 2. How brownification and eutrophication effects a drinking water source – with Lake Bolmen, Sweden, in focus

    University essay from Lunds universitet/Miljövetenskaplig utbildning; Lunds universitet/Centrum för miljö- och klimatvetenskap (CEC)

    Author : Stina Stomberg; [2022]
    Keywords : brownification; eutrophication effects; drinking water; phytoplankton; Lake Bolmen; mesocosm; Earth and Environmental Sciences;

    Abstract : The ongoing human impact in form of deforestation, urbanization and intense agriculture is affecting the natural hydrology and our freshwater lakes negatively. Both eutrophication and brownification has seen to increase with the ongoing environmental change which can potentially have large impact on our freshwater ecosystems. READ MORE

  4. 3. Optimisation of a small-scale ultrafiltration system for separation of humic substances from surface water

    University essay from KTH/Kemiteknik

    Author : Nadia Nikzad; [2021]
    Keywords : Ultrafiltration; online-coagulation; pH; reaction time; coagulant dosage; NOM; humic substances; Ultrafiltrering; online-koagulation; pH; reaktionstid; koaguleringsdos; NOM; humusämnen;

    Abstract : Norrvatten är den fjärde största dricksvattenproducenten i Sverige. De producerar och distribuerar dricksvatten till 14 kommuner norr om Stockholm. Norrvatten har under en tid studerat alternativa processer för att optimera och öka produktionskapaciteten och effektiviteten i deras dricksvattenreningsverk vid Görvälnverket. READ MORE

  5. 4. A method development for measuring lithium uptake inCaco-2 cells in a complex matrix using MP-AES – Appliedto evaluate the impact of humic acids on lithium uptake

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Erica Hjelm; [2019]
    Keywords : Lithium; humic substances; MP AES; Caco-2;

    Abstract : Lithium, together with hydrogen and helium, were the only elements formed duringthe big bang. Lithium today, is a component in various products, some examples aregrease, ceramics, lithium-ion batteries and medication for bipolar disorder. READ MORE

  6. 5. Fluorescence probes: towards automatic coagulant dosing

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Daphné Lecellier; [2018]
    Keywords : Drinking water quality; Water treatment process; Coagulation; Microcystis aerugosa; algal organic matter; LC-OCD; EEM; powdered activated carbon; Alum;

    Abstract : There is a current lack of accurate tools to determine the concentration of cyanobacteria in situ.  Besides, cyanobacterial blooms have to be carefully monitored in reservoirs as they are more frequent because of climate change and can lead to potential released of toxins, along with other components. READ MORE