Sökning: "Potential nitrification"

Visar resultat 6 - 10 av 27 uppsatser innehållade orden Potential nitrification.

  1. 6. Leachate-Based Biotic Ligand Model for Soil : Ecotoxicological Risk Assessment of Copper for Invertebrates, Plants, and Soil Microbial Processes

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Tove Florén; [2021]
    Nyckelord :Tomato shoot; Barley root; Glucose induced respiration; Nitrification; Earthworm; Springtail; EC10; SSD; Regression analysis; pH dependency; Bioavailability;

    Sammanfattning : Environmental pollution of heavy metals has become an increasing problem. Environmental risk assessments can be conducted to investigate and determine the potential risk of polluted terrestrial environments. Traditionally, risk assessments are based on total soil metal concentrations on a dry weight basis. LÄS MER

  3. 7. Sustainability assessment of urine concentration technologies

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

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

    Sammanfattning : 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. LÄS MER

  4. 8. Nutrient dynamics in pak choi cultivation fertilized with biogas digestate : effects of non-nutrient digestate elements and amendment with mineral nutrients

    Master-uppsats, SLU/Department of Biosystems and Technology (from 130101)

    Författare :Kristina Weimers; [2020]
    Nyckelord :Biogas digestate; pak choi; Brassica rapa; ssp. chinensis; ‘Joy Choi’; greenhouse; soilless production; peat-based growing media; biostimulants; nitrification; nutrient recovery efficiency; phosphorus; sulphur;

    Sammanfattning : Anaerobic digestion in biogas plants produces renewable energy and a residue which is rich in plant nutrients. This residue is called digestate. Today, these digestates are mostly spread directly onto fields as manure. LÄS MER

  5. 9. Styrning av biologisk kväverening anpassat efter tidsvarierande elpris

    Uppsats för yrkesexamina på avancerad nivå,

    Författare :Johan Sund; [2019]
    Nyckelord :biological nutrient removal; optimization; aeration; retention basin; equalization; demand response; biologisk kväverening; optimering; luftning; magasin; utjämning; efterfrågerespons;

    Sammanfattning : The electricity demand of a waste water treatment plants follows the diurnal pattern of society, and this generally leads to higher demand when the market price is high. The possibility to adapt the operation after price variation has been known since long, but few studies have been published. LÄS MER

  7. 10. Möjligheter och utmaningar med mykorrhiza i produktion av amerikanska tranbär

    Kandidat-uppsats, SLU/Dept. of Biosystems and Technology (from 130101)

    Författare :Sally Kanger; [2018]
    Nyckelord :ericoid mykorrhiza; amerikanska tranbär; Vaccinium macrocarpon; näringsupptag; resistens mot sjukdomar; resistens mot metallföroreningar;

    Sammanfattning : Amerikanska tranbär (Vaccinium macrocarpon) är ett vanlig kommersiellt bär som har potential att odlas i större omfång i Sverige. Dess rötter bildar frekvent symbios med speciella svampar i jorden, en symbios som kallas ericoid mykorrhiza (ErM). LÄS MER