Sökning: "organic N"

Visar resultat 21 - 25 av 240 uppsatser innehållade orden organic N.

  1. 21. Greening peptide chemistry by using NBP as solvent for SPPS

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Andrea Ölander; [2022]
    Nyckelord :SPPS; Green chemistry; Peptide Synthesis; Organic chemistry; Organisk kemi; Chemistry;

    Sammanfattning : The preferred method for synthesising therapeutic peptides today is by Solid-Phase Peptide Synthesis (SPPS). SPPS is a wasteful process, where the main component of the waste is hazardous solvents, i.e., N,N-dimethylformamide (DMF), N-methylpyrrolidone (NMP) or dichloromethane (DCM). LÄS MER

  3. 22. Biogeochemistry and Peat Properties of Restored Peatlands

    Master-uppsats, SLU/Dept. of Forest Ecology and Management

    Författare :Pelle Belaieff Kronborg; [2022]
    Nyckelord :Drainage; Bulk density; Nitrogen; Carbon; Stable isotopes;

    Sammanfattning : Globally, peatlands comprise the most important soil organic carbon pool storing approximately one third of all terrestrial soil carbon. Drainage can turn peatlands to net sources of carbon dioxide. Peatlands have historically been drained to increase the productivity of agriculture and forestry. LÄS MER

  4. 23. Development of alkaline earth metal-based, metal-organic frameworks for greenhouse gas sorption

    Master-uppsats, Uppsala universitet/Institutionen för materialvetenskap

    Författare :Ali Maghsoodpoor; [2022]
    Nyckelord :Metal-organic Framework; gas sorption;

    Sammanfattning : Metal-organic frameworks (MOFs) constructed from metal atoms connected by organic linkers have received extensive attention for greenhouse gas separation in the past decades. Moreover, their large surface area makes them a promising candidate as adsorbents for gas sorption. LÄS MER

  5. 24. Emission of greenhouse gases from constructed wetlands : Nutrient status in relation to methane and nitrous oxide emission

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Christian Lundström; [2022]
    Nyckelord :Constructed wetland; greenhouse gas emission; nutrient status; ebullition; Anlagd våtmark; växthusgasutsläpp; näringsstatus; ebullition;

    Sammanfattning : Agricultural land releases large amounts of nitrogen and phosphorus to water bodies which causes eutrophication. Creating wetlands on agricultural land is one way to prevent this major issue. However, constructed wetlands are a large emission source of greenhouse gases. LÄS MER

  7. 25. Biochar and hemp as peat substitutes in organic growing media : effects on nutrient availability and nutrient uptake

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

    Författare :Malin Nilsson; [2022]
    Nyckelord :Growing media; substrate; biochar; hemp; peat substitution; nutrient availability; nutrient use efficiency;

    Sammanfattning : This study aimed at evaluating the suitability of biochar and hemp as partial or complete replacement of peat in horticultural growing media, with specific emphasis on the effects on nutrient availability and plant nutrient uptake. The study was motivated by the environmental concerns surrounding the use of peat, along with a desire to explore possible uses for biochar and a crop residue from hemp cultivation. LÄS MER