Passive Microalgae Immobilization for Wastewater Treatment: Study of Residual Glycerol Consumption

• Main Authors: V.E. Blanco Suarez, S.S. Villamizar Sanchez, Y.Y. Peralta-Ruiz, Á.D. Gonzalez-Delgado, A.F. Barajas-Solano, A.M. Ardila
• Format: Article
• Language: English
• Published: AIDIC Servizi S.r.l. 2016-05-01
• Series: Chemical Engineering Transactions
• Online Access: https://www.cetjournal.it/index.php/cet/article/view/4169

The aim of the present study is to evaluate the viability of glycerol as carbon source on immobilized algae cultures coupled with a modification on nitrogen (NO3-) and phosphate (PO4) concentration for the production of high valuable compounds (carbohydrates, proteins and lipids). it was determined that the conditions who favour the deposition of carbohydrates are 3-5% (v/v) of glycerol and 0.37 (g/L) of NaNO3. On The other hand, for obtain higher amounts of lipids, a 3% (v/v) of glycerol coupled with a limitation in the nitrogen source (0.04 g/L) are needed. Finally, in order to improve deposition of total proteins, larger concentrations of glycerol (5% v/v), NaNO3 (>0.37 g/L) and phosphate are needed.