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Pilot Experiments with Electrodialysis and Ozonation for the Production of a Fertilizer from Urine Organic Eprints
Pronk, W.; Zuleeg, S.; Lienert, J.; Escher, B.; Koller, M.; Berner, A.; Koch, G.; Boller, M..
Pilot tests were performed with a process combination of electrodialysis and ozonation for the removal of micropollutants and the concentration of nutrients in urine. In continuous and batch experiments, maximum concentration factors up to 3.5 and 4.1 were obtained, respectively. The desalination capacity did not decrease significantly during continuous operation periods of several weeks. Membrane cleaning after 195 days resulted in approximately 35% increase in desalination rate. The Yeast Estrogen Screen (YES), a bioassay that selectively detects oestrogenic compounds, confirmed that about 90% of the oestrogenic activity was removed by electrodialysis. HPLC analysis showed that ibuprofen was removed to a high extent, while other micropollutants were...
Tipo: Journal paper Palavras-chave: Crop husbandry; Soil quality; Air and water emissions.
Ano: 2007 URL: http://orgprints.org/13159/1/Pronk%2Detal%2D2007%2Dwater_sciene_technology_56_5.pdf
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How farmers in Switzerland perceive fertilizers from recycled anthropogenetic nutrients (urine) Organic Eprints
Lienert, J.; Haller, M.; Berner, A.; Stauffacher, M.; Larsen, T.A..
How farmers in Switzerland perceive fertilizers from recycled anthropogenetic nutrients (urine).
Tipo: Journal paper Palavras-chave: Composting and manuring.
Ano: 2003 URL: http://orgprints.org/2828/1/no%2Ddocument%2Drft.rtf
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