Essays about: "Kväveförluster"

Showing result 1 - 5 of 6 essays containing the word Kväveförluster.

  1. 1. Sustainability assessment of urine concentration technologies

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Matilda Gunnarsson; [2021]
    Keywords : Wastewater treatment; urine concentration; alkaline dehydration; nitrification-distillation; ion-exchange; struvite precipitation; MCA; Avloppsvattenrening; urinkoncentrering; alkalisk urintorkning; nitrifikations-destillering; jonbyte; struvitfällning; MKA;

    Abstract : The majority of the nutrients in household wastewater are found in the urine and in order to facilitate the use the nutrients in the urine as fertilizer, the urine can be can be concentrated. To extract the nutrients from the urine, various technologies for urine concentration are being developed today. READ MORE

  3. 2. Gödslade eller ogödslade mellangrödor som biogassubstrat?

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

    Author : Märta Gunnarsson; [2014]
    Keywords : mellangrödor; fånggrödor; konservärt; biogassubstrat; kvävehushållning; cover crops; catch crops; green pea; biogas feedstock; nitrogen management;

    Abstract : Jordbruket står idag inför utmaningen att öka produktionen av biogas-substrat utan att öka konkurrensen om jordbruksareal för foder- och livsmedelsproduktion. Fånggrödor odlas idag för att reducera jordbrukets kväveläckage till vattendrag. READ MORE

  4. 3. Djupströbäddar i fårproduktionen : dess egenskaper samt alternativa strömedel

    University essay from SLU/Dept. of Agricultural Research for Northern Sweden

    Author : Janina Nihlstrand; [2013]
    Keywords : får; djupströbädd; kompostering; strömedel;

    Abstract : I dagens svenska fårproduktion hålls de flesta djuren på djupströbäddar av halm under stallperioden. Att få till en väl fungerande djupströbädd som brinner kan ibland upplevas som en utmaning då den mikroorganiska aktiviteten som sker i bädden är en komplicerad process. READ MORE

  5. 4. Mjölkureahalten som mått på vommikrobernas kväveförsörjning och kons miljöbelastning

    University essay from SLU/Dept. of Animal Nutrition and Management

    Author : Anna Strömgren; [2012]
    Keywords : mjölkurea; mjölkko; vommikrober; kväveförluster; fertilitet;

    Abstract : The aim of this literature study was to analyze how milk urea concentration is working as a measure of the nitrogen supply to rumen microbes and indicator of the environmental load. Questions included in this literature study were how to improve the dairy cattle nitrogen efficiency and what correlations there are between milk urea, nitrogen efficiency and crude protein content in the feed. READ MORE

  6. 5. Mjölkureahalten som mått på vom-mikrobernas kväveförsörjning och kons miljöbelastning

    University essay from SLU/Dept. of Animal Nutrition and Management

    Author : Anna Strömgren; [2012]
    Keywords : Mjölkurea; Mjölkko; Vom-mikrober; Kväveförluster; Fertilitet;

    Abstract : The aim of this literature study was to analyze how milk urea concentration is working as a measure of the nitrogen supply to rumen microbes and indicator of the environmental load. Questions included in this literature study were how to improve the dairy cattle nitrogen efficiency and what correlations there are between milk urea, nitrogen efficiency and crude protein content in the feed. READ MORE