Study of the Effect of Leucine on Calcium Carbonate Precipitation in a Circular Economy Perspective
Autor: | Giuseppe Mazziotti di Celso, Marina Prisciandaro, Despina Karatza, Dino Musmarra, Amedeo Lancia |
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Přispěvatelé: | Di Celso, G. M., Prisciandaro, M., Karatza, D., Musmarra, D., Lancia, A. |
Jazyk: | angličtina |
Rok vydání: | 2022 |
Předmět: |
Water supply for domestic and industrial purposes
Geography Planning and Development CCU green additive Hydraulic engineering Aquatic Science precipitation Biochemistry Calcium carbonate Desalination brines Green additive Leucine Precipitation calcium carbonate desalination brines leucine TC1-978 TD201-500 Water Science and Technology Desalination brine |
Zdroj: | Water; Volume 14; Issue 2; Pages: 270 Water, Vol 14, Iss 270, p 270 (2022) |
ISSN: | 2073-4441 |
DOI: | 10.3390/w14020270 |
Popis: | This paper studies the crystallization of calcium carbonate in the presence of leucine—a green additive. The effect of leucine on calcium carbonate precipitation kinetic is particularly interesting since CaCO3 is a valuable product worthy to be recovered from industrial liquid wastes (e.g., desalination brines) in the circular economy approach. Experiments have been performed in a laboratory scale plant with a supersaturation range which spams from 2 to 120 and two different leucine concentration (0.520 × 10−3 and 1.041 × 10−3 mol/L). Results obtained have been compared with previous published ones, carried out without any additives. From the measurements of induction times for calcium carbonate nucleation, it was established that in solution, the leucine favors the precipitation of calcium carbonate, so it can be considered a promoter in calcium carbonate crystallization and this behavior enhances when raising its concentration in solution. Interfacial tension was determined for both leucine concentration levels, and the values obtained are in the range 51–84 mJ/m2. |
Databáze: | OpenAIRE |
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