Essays about: "struvite"

Showing result 1 - 5 of 7 essays containing the word struvite.

  1. 1. Sustainability assessment of urine concentration technologies

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Matilda Gunnarsson; [2021]
    Keywords : Wastewater treatment; urine concentration; alkaline dehydration; nitrification-distillation; ion-exchange; struvite precipitation; MCA; Avloppsvattenrening; urinkoncentrering; alkalisk urintorkning; nitrifikations-destillering; jonbyte; struvitfällning; MKA;

    Abstract : The majority of the nutrients in household wastewater are found in the urine and in order to facilitate the use the nutrients in the urine as fertilizer, the urine can be can be concentrated. To extract the nutrients from the urine, various technologies for urine concentration are being developed today. READ MORE

  3. 2. Removal and recovery of phosphorus from side-stream hydrolysis

    University essay from KTH/Mark- och vattenteknik

    Author : Anu Paul Naduvath; [2017]
    Keywords : Phosphorus removal; Chemical precipitation; Magnesium chloride; Calcium chloride; Struvite; Calcium phosphate; Parameters; Recovery;

    Abstract : The report formulates the experiments conducted to remove phosphorus from the return sludge wastewater subjected to side-stream hydrolysis. The experiments are conducted using the wastewater from the outlet of side-stream hydrolysis and is tested in a laboratory at the Duvbackens wastewater treatment plant in Gävle. READ MORE

  4. 3. Analyzing the process of struvite recovery with life cycle assessment : a case study

    University essay from SLU/Dept. of Energy and Technology

    Author : Attila Némethy; [2016]
    Keywords : phosphorus; crystallization; sewage sludge; nutrient recycling; impacts; fertilizer;

    Abstract : In this study a comparative life cycle assessment was conducted, where a wastewater treatment method with a newly integrated struvite precipitation process was analyzed and compared with the conventional enhanced biological nutrient removal (EBNR) - based wastewater and sludge treatment. A case study was carried out based on data from a wastewater treatment plant in south Sweden, which was operating with EBNR, and started to use integrated struvite precipitation on pilot-scale in 2013. READ MORE

  5. 4. Bildandet av kalciumoxalatstenar i hundens urinvägar : en genomgång av potentiella predisponerande faktorer

    University essay from SLU/Dept. of Biomedical Sciences and Veterinary Public Health

    Author : Elina Thern; [2015]
    Keywords : urinsten; urolithiasis; kalciumoxalat; hund; ”urinary stones”; urolithiasis; ”calcium oxalate”; dog; canine;

    Abstract : Urinsten, urolithiasis, är en relativt vanlig åkomma i hundens urinvägar. Stenarna är uppbyggda av olika mineraler och salter av vilka kalciumoxalat och struvit (magnesiumammoniumfosfat) är de vanligaste, ensamma eller i kombination med andra ämnen. READ MORE

  6. 5. Energy and nutrient recovery from dairy manure : Process design and economic performance of a farm based system

    University essay from Linköpings universitet/Industriell miljöteknik; Linköpings universitet/Tekniska högskolan

    Author : Filip Celander; Johan Haglund; [2014]
    Keywords : Manure; cattle; fertiliser; nutrient recovery; renewable energy; manure separation; struvite; Stallgödsel; gödsel; gödselseparering; växtnäring; förnyelsebar energi; struvit;

    Abstract : This thesis assessed the technical and economic premises for installing systems that process manure in order to recover nutrients and inherent energy. The main purpose of recovering nutrients was to extract phosphorus from the manure, so as to be able to distribute more of the manure on the farm without exceeding the phosphorus regulation. READ MORE