Essays about: "source separated urine"

Showing result 1 - 5 of 11 essays containing the words source separated urine.

  1. 1. Fertiliser derived from human urine : novel media for alkaline urine dehydration

    University essay from SLU/Dept. of Energy and Technology

    Author : Christopher Friedrich; [2021]
    Keywords : nutrient recovery; fertiliser; urine drying; source separation; magnesium oxide; calcium hydroxide;

    Abstract : Every year, each human excretes approximately 4 kg of nitrogen, 1 kg of potassium and 0.3 kg of phosphorus through their urine. In conventional wastewater treatment, these nutrients are usually not recovered for agricultural production, although they can enhance plant growth. READ MORE

  3. 2. Challenges during start-up of urine nitrification in an MBBR

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Ellen Ascard Edefell; [2017]
    Keywords : Urine; source-separation; urine stabilisation; nitrogen recovery; nitrification; moving bed biofilm reactor; MBBR; water engineering; environmental engineering; vattenförsörjningsteknik; avloppsteknik; Technology and Engineering;

    Abstract : Nitrogen and phosphorous compounds are secreted by humans and treated in wastewater treatments plants. These substances are also found in agricultural fertilisers and needed for plant growth. Nutrient recycling is limited in conventional treatment systems and valuable products are lost. READ MORE

  4. 3. Inactivation of the urease enzyme by heat and alkaline pH treatment : retaining urea-nitrogen in urine for fertilizer use

    University essay from SLU/Dept. of Energy and Technology

    Author : Magdalena Geinzer; [2017]
    Keywords : fertilizer; nutrient recycling; source separated urine; urea; urease; urine drying;

    Abstract : Urine, containing nitrogen (N) in the valuable form of urea, has a high fertilizer potential if it is dehydrated and the nutrients are concentrated. However, urea is not only a valuable N source for plants but also for microbiota which possess a highly efficient urease enzyme to degrade urea into volatile ammonia (NH3). READ MORE

  5. 4. Metabolic effect of whole grain

    University essay from SLU/Dept. of Animal Nutrition and Management

    Author : Nualprae Saenbungkhor; [2016]
    Keywords : pigs; whole grain rye; wheat; metabolic; H-NMR; insulin; Glucose;

    Abstract : In Western countries, whole grain products are used as a source of dietary carbohydrates for both humans and animals. Several studies have indicated that consumption of whole grain products generate a lower postprandial insulin response than the refined products. READ MORE

  6. 5. Ammonium and orthophosphate ions removal from source separated human urine using dual reactive filters: A small scale laboratory study in a batch mode.

    University essay from KTH/Mark- och vattenteknik

    Author : Prayash Khanal; [2013]
    Keywords : Reactive filters system; Urine; Nutrients removal; Polonite; Mordenite; Batch mode;

    Abstract : The nutrients available in urine make it a good resource as fertilizer. Limited availability of natural phosphorus (P) is compelling people to think about recovering and returning it back to the land from waste stream. READ MORE