Print Email Facebook Twitter Electro-separation of microalgal culture from wastewater Title Electro-separation of microalgal culture from wastewater Author Rafiee, Poorya (Sahand University of Technology) Tong, Yen Wah (National University of Singapore) Hosseini, Maryam (Azarbaijan Shahid Madani University) Ebrahimi, S. (TU Delft BT/Environmental Biotechnology; Sahand University of Technology) Date 2019 Abstract For further applications of microalgae such as bio-products, microalgal harvesting from its culture medium (e.g. wastewater) must be studied. This becomes more essential when investigating whether or not cells can stay viable to be recycled into the system. Microalgae culture, wastewater, and a mixture of both were separately electrocoagulated at wastewater Chemical Oxygen Demand ranging 66–2700 mg.l-1 and biomass dry weights between 1 and 8 g.l-1. The mixed culture contained species of C. Vulgaris, S. Obliquus, B. Braunii, B. Sudeticus, and A. Falcatus, since mixed culture technique can reduce the expenses in industrial scales by eliminating the costly sterilization strategies necessary to avoid contamination. The mixed samples were successfully separated with the efficiencies between 44-87% and 70–80% at different Chemical Oxygen Demand and biomass dry weights, respectively. In addition, it was shown that growth elements of carbon and nitrogen, although at lower rates, were consumed confirming the viability of the cells after electrocoagulation. The consumption rates for electrocoagulated samples were smaller than non-electrocoagulated samples only by 16, 12, and 31% in carbon, nitrate and ammonium concentrations, respectively. According to the obtained results electrical separation of microalgae could effectively harvest microalgae from wastewater without affecting the viability of the biomass. Subject ElectrocoagulationHarvestMicroalgaeMixed cultureWastewater To reference this document use: http://resolver.tudelft.nl/uuid:dac980c1-41a5-4bc9-b9be-e1f5dd1ba584 DOI https://doi.org/10.1016/j.bcab.2019.101402 Embargo date 2020-10-31 ISSN 1878-8181 Source Biocatalysis and Agricultural Biotechnology, 22 Bibliographical note Accepted Author Manuscript Part of collection Institutional Repository Document type journal article Rights © 2019 Poorya Rafiee, Yen Wah Tong, Maryam Hosseini, S. Ebrahimi Files PDF 01_Manuscript_revisedv4_Tudelft.pdf 372.17 KB Close viewer /islandora/object/uuid:dac980c1-41a5-4bc9-b9be-e1f5dd1ba584/datastream/OBJ/view