Essays about: "fulvosyror"

Found 3 essays containing the word fulvosyror.

  1. 1. Bindning av PFAS-ämnen till humus- och fulvosyror : en dialysstudie

    University essay from SLU/Dept. of Soil and Environment

    Author : Johannes Kikuchi; [2020]
    Keywords : PFOS; PFOA; sorption; kinetics; dissolved organic matter; natural organic matter; DOC; DOM; membrane;

    Abstract : To make more accurate predictions of the mobility of perfluoroalkyl substances (PFAS) in soil and water, better understanding of PFAS sorption to components of the terrestrial and aquatic systems is needed. This study investigated the possible sorption of a range of PFAS compounds with varying chemistries to humic acid (HA) and fulvic acid (FA) using a dialysis bag experimental set-up. READ MORE

  3. 2. Humussyrornas roll i odlingssystemet : påverkan på växtproduktivitet vid applicering av humussyror

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Philip Juhlin; [2019]
    Keywords : Tillväxtfrämjande bakterier; fulvosyror; organiskt material; rottillväxt; stresstolerans; näringsupptag; growth promoting bacteria; fulvic acids; organic matter; rootgrowth; stress tolerance; nutrient uptake;

    Abstract : Förstöringen av odlingsbar mark orsakas till stor del av jordbruket och är ett hot mot matproduktionen och matsäkerheten. Odlingsbara arealen minskar samtidigt som efterfrågan på mat ökar. För att möta detta behöver odlingssystemens produktivitet öka utan fortsatt markförstöring. READ MORE

  4. 3. Organic matter properties and their relation to phosphorus and nitrogen concentrations in Swedish agricultural streams

    University essay from SLU/Dept. of Soil and Environment

    Author : Betty Ehnvall; [2017]
    Keywords : dissolved organic matter; excitation-emission fluorescence spectroscopy; absorbance spectroscopy; eutrophication; biogeochemistry; absorbance index; fluorescence index;

    Abstract : Many agricultural streams in Sweden exhibit high concentrations of nitrogen, phosphorus, suspended sediments and dissolved organic matter (DOM). Together these substances cause eutrophication in streams, rivers and eventually the Baltic Sea. The interactions between different fractions of DOM and nutrients are not very well understood. READ MORE