Cassava processing wastewater as a platform for third generation biodiesel production

Abstract

This study aimed to evaluate third generation biodiesel production by microalgae Phormidium autumnale using cassava processing wastewater as a platform. Experiments were , respectively. The composition of this oil is predominantly saturated (60 %) and monounsaturated (39 %), resulting in a biodiesel that complys with U.S., European and Brazilian standards. The technological route developed indicates potential for sustainable production of bulk oil and biodiesel, through the minimization of water and chemical demands required to support such a process.

Cyanobacteria as an eco‐friendly resource for biofuel production: A critical review

“…Neves et al also applied the wastewater of cassava processing for the fed‐batch cultivation of filamentous cyanobacterium, Phormidium autumnale . This wastewater was rich in organic compounds without any inhibitory effect on microalga and cyanobacteria growth.…”

Potential of <i>Dictyosphaerium</i> sp. LC172264 Concomitant Remediation of Cassava Wastewater and Accumulation of Lipids for Biodiesel Production

“…The present sand filtration has been recently employed in the bioremediation of cassava wastewater by other species of microalgae in previous studies [5] [11]. Cassava processing wastewater was recently demonstrated to be an ideal platform for third generation biodiesel production [7] because of the nutrients it contains.…”

“…High quantities of these two environmental parameters (hydrogen cyanide and BOD) in water indicate high pollution. In remediating CWW, Neves et al [7] obtained a total nitrogen (g/L) and a total phosphorous (g/L) of 0.25 ± 0.01 and 0.16 ± 0.01 respectively from cassava wastewater. They also obtained from the wastewater, a carbon to nitrogen ratio of 96.0 ± 4.24 and nitrogen to phosphorous ratio of 1.50 ± 0.071.…”

“…Microalgae have the capability of using effluent as substrate to produce biomass from which oil can be extracted and subsequently used as precursor for products that substitute hydrocarbon fossil fuel. Accordingly, Neves et al [7] obtained total nitrogen (g/L) and a total phosphorous (g/L) of 0.25 ± 0.01 and 0.16 ± 0.01 respectively from cassava wastewater. They also obtained from the wastewater, a carbon to nitrogen ratio of 96.0 ± 4.24 and nitrogen to phosphorous ratio of 1.50 ± 0.071.…”

“…Previous studies had recently demonstrated the use of cassava wastewater as substrate for microalgal biomass production and the harvesting of lipid for biodiesel production. Neves et al [7] evaluated biodiesel production potentials of a microalga Phormidium autumnale using cassava wastewater as substrate under heterotrophic condition and obtained good quality biodiesel, high biomass density and high lipid contents. More recently, Ogbonna et al [5] and Okpozu et al [11] had demonstrated the use of Desmodesmus subspicatus LC172266 and Desmodesmus armatus respectively for the production of biomasses, lipids and biodiesel using cassava wastewater as substrate.…”