Essays about: "aerobic conditions"

Showing result 1 - 5 of 35 essays containing the words aerobic conditions.

  1. 1. Greenhoue gas flux over a 50-year post permafrost thaw gradient. Decomposition of soil organic carbon from the Swedish tussock tundra.

    University essay from Göteborgs universitet/Institutionen för geovetenskaper

    Author : Johan Martinelli; [2020-02-11]
    Keywords : greenhouse gas; permafrost;

    Abstract : As the globe is warming the extent of permafrost drastically decreases in the high latitudes. Upon thawthe stored soil organic carbon (SOC) undergoes rapid decomposition and is partly released as trace gasesto the atmosphere. READ MORE

  3. 2. Assessment of on-site wastewater treatment systems in unsewered communities in Jordan

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Hani Yahya Ali Shubail; [2020]
    Keywords : Constructed wetland; Decentralized wastewater treatment; Jordan; On-site wastewater treatment system;

    Abstract : Centralized wastewater treatment systems need substantial funds besides high-cost operation and maintenance programs, which could be considered unsuitable for low-income developing countries. As a solution, it becomes the trend towards on-site wastewater treatment systems (OWTs) due to its cost-effectiveness and flexibility of implementation and management. READ MORE

  4. 3. I vilken omfattning sker spannmålskonservering med propionsyra? : en intervjustudie med lantbrukare i Västerbottens län

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

    Author : Frida Dahlberg; [2020]
    Keywords : spannmålslagring; krossensilering; propionsyra; spannmål; lagerskador; Västerbotten; Norrland;

    Abstract : Spannmål kan konserveras genom att sänka vattenhalten, sänka temperaturen, hindra syretillförsel eller att tillsätta konserveringsmedel. I dag är att sänka vattenhalten, det vill säga torkning den vanligaste metoden men ska spannmålen användas till djurfoder är torkning inget krav utan då finns det olika metoder till att lagra den fuktig. READ MORE

  5. 4. 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

  6. 5. 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