Essays about: "water retention"

Showing result 11 - 15 of 157 essays containing the words water retention.

  1. 11. The Influence of Macrophytes on Aquatic Microclimate

    University essay from Stockholms universitet/Institutionen för ekologi, miljö och botanik; Stockholms universitet/Institutionen för biologisk grundutbildning (BIG)

    Author : Julia Elliot; [2023]
    Keywords : ;

    Abstract : How terrestrial vegetation influences microclimate and what effects this has on associated ecosystems is well studied, but it is less known if and how aquatic macrophytes affect their microclimate. In this study I therefore aim to investigate the question of how aquatic macrophytes influence their microclimate, and how these effects in turn may affect associated aquatic organisms and ecosystems. READ MORE

  3. 12. Dagvatten som berikar : en gestaltning av stadsdelsparken Ekebydalen i Uppsala innefattande integrering av dagvattenanläggningar och sociotopvärden

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Sofia Andersson; Ellica Ericsson; [2023]
    Keywords : dagvatten; dagvattenhantering; hållbar dagvattenhantering; skyfall; klimatanpassning; nature-based solutions; sociotopvärden; Ekebydalen Uppsala; stadsdelspark; gestaltning;

    Abstract : Klimatförändringarna leder till skyfall och en ökad risk för översvämningar i våra städer som därmed behöver klimatanpassas för att hantera detta. Kravet på en hållbar dagvattenhantering ökar vilket innebär att vattnet fördröjs och renas på ett sätt som är inspirerat av naturen. READ MORE

  4. 13. Modified cellulose synthesized by different deep eutectic solvents as an additive in paper making process

    University essay from Karlstads universitet

    Author : Shiniar Said Saleh; [2023]
    Keywords : green chemistry; dry strength additives; deep eutectic solvents; sodium periodate oxidation; charge density; dewatering; mechanical strength.;

    Abstract : The environmental concerns that come with the currently used traditional papermaking process where petroleum-based additives are used, has tempted researchers to study “green” additives by introducing environmentally friendly modifications of cellulose as an additive in the papermaking process. This thesis will spin further on that by producing additives with different charge densities and focus on to incorporate an etherification reaction into potentially greens systems based on non-toxic and readily biodegradable deep eutectic solvent (DES). READ MORE

  5. 14. Modelling the full-scale N2O emissions from wastewater treatment plants for identifying mitigation strategies

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Naga Deepika Peddamudium; [2023]
    Keywords : Modelling; simulation; ASM2dISS; N2O production pathways; N2O emission factor; mitigation strategies; water and environmental engineering; Technology and Engineering;

    Abstract : Nitrous oxide (N2O) emissions, which primarily originate from the biological nitrogen removal process, dominate the release of greenhouse gases (GHGs) in wastewater treatment plants (WWTPs). N2O production occurs through dynamic microbial pathways that have a significant impact on the environment compared with other GHG emissions. READ MORE

  6. 15. Deacetylated Hyaluronan : Exploration of deacetylation techniques for hyaluronan (oligo and polysaccharides)

    University essay from Uppsala universitet/Institutionen för materialvetenskap

    Author : Sima Mardini; Hanna Björk; Marcus Möller; Carl Lagergren; Oscar Samuelsson; [2023]
    Keywords : hyaluronic acid; deacetylated hyaluronan; N-deacetylation; re-acetylation; hydrogels;

    Abstract : Hyaluronic acid is an organic polysaccharide with a wide range of uses in medical and cosmetic industries due to its physiological properties. Crosslinked hyaluronic acid is a commonly used filler agent because of its water retention capabilities. N-deacetylation can be performed to enable new derivatives of hyaluronic acid. READ MORE