TREATMENT OF WASTE WATER FROM CALCIUM NITRATE PRODUCTION BY ELECTRODIALYSIS
Lubomir Machuca, David Tvrznik, Vit Fara
Pages: 49-54
Publié: 1 Jun 2014
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Résumé: A process for cleaning of waste water from calcium nitrate (CN) production is described in this study. Electrodialysis (ED) was used in the process. A pilot ED module was tested with real waste water containing CN. Tests were carried out both in batch and in feed&bleed mode. Concentration at the beginning of the batch test was 20 g/L of CN and a dependence of salt removal on concentration was obtained from results. Concentration of the treated solution in feed&bleed was in the range 0.8 – 80 g/L of CN and it demonstrated to achieve concentrate stream with concentration higher than 240 g/L of CN. All results from the pilot tests were useful for a design of an industrial ED technology in capacity of 200 m3/d.
Mots-clés : electrodialysis, calcium nitrate, waste water, fertilizer
Citer cet article : Lubomir Machuca, David Tvrznik, Vit Fara. TREATMENT OF WASTE WATER FROM CALCIUM NITRATE PRODUCTION BY ELECTRODIALYSIS. Journal of International Scientific Publications: Agriculture & Food 2, 49-54 (2014). https://www.scientific-publications.net/en/article/1000007/
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