Essays about: "chemical precipitation"

Showing result 11 - 15 of 78 essays containing the words chemical precipitation.

  1. 11. Lagring av skogsflis med och utan täckning : substansförlusters påverkan av nederbörd och vind

    University essay from SLU/Dept. of Energy and Technology

    Author : Daniel Wetterholm; [2021]
    Keywords : biobränsle; bränslekvalitet; substansförluster; fukthalt; data analys; lagring;

    Abstract : In the supply chain for wood chips, storage is a neccesary part due to seasonal demand. During storage there are several mechanisms occuring, cell respiration, biological degradation and thermo-chemical oxidative reaction. All of the mentioned mechanisms lead to increased temperature, loss of dry matter and energy. READ MORE

  3. 12. A Comparative LCA study on the refurbishment of quays with induced mineral deposition technology

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Remy Prame Joseph Jerald; [2020]
    Keywords : Refurbishment; Induced mineral deposition; Life cycle assessment; Climate change impact; Global warming potential;

    Abstract : A quay is a structure which is constructed along the shoreline for docking purposes. When the quay is constructed using reinforced concrete, damage over time happens under the combined action of chemical and mechanical corrosion of the varied materials. READ MORE

  4. 13. Evaluation of Carbon Source Addition on Denitrification Efficiency : A study in a continuous biological leachate water treatment system.

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Isac Ingfeldt; [2020]
    Keywords : denitrification; nitrification; WWTP; carbon source; ethanol; glycerol; Brenntaplus VP1; nitrate; pilot;

    Abstract : In 2014 SÖRAB constructed a continuous biological treatment system (KBR) to handle leachate waterfrom the landfill at the facility in Löt, north of Stockholm. The KBR is mainly focused on removal ofammonium nitrogen which would otherwise be released in to the recipient and contribute toeutrophication and damage to the environment. READ MORE

  5. 14. Characterization of microplastics in storm water in Örebro, Sweden

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Isabelle Karlsson Sjögren; [2020]
    Keywords : Chemical characterization; microplastic; pollution; storm water; visual characterization;

    Abstract : Microplastic is a widespread pollutant in marine and fresh water systems. A major pathway by which microplastics end up in these systems is via storm water. Storm water is generated as precipitation drain off of impenetrable surfaces like paving. READ MORE

  6. 15. Mapping spontaneous biological phosphorus removal in a membrane bioreactor process without the anaerobic condition : Investigating the effect of alternative external carbon sources

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Ross Roberts; [2020]
    Keywords : enhanced biological phosphorus removal; PAO; anoxic; carbon source; ethanol; ORP;

    Abstract : Phosphorus removal in wastewater treatment is commonly achieved by chemical precipitation, enhanced biological phosphorus removal (EBPR) or a simultaneous combination of the two. A defined anaerobic condition is widely regarded as the critical element to sustain EBPR. However, this study demonstrates that EBPR is indeed occurring in a 4. READ MORE