Sustainably Cultivating and Harvesting Microalgae through Sedimentation and Forward Osmosis Using Wastes.

ABSTRACT: Cost-effective nutrient sources and dewatering are major obstacles to sustainable, scaled-up cultivation of microalgae. Employing waste resources as sources of nutrients offsets costs for nutrient supplies while adding value through simultaneous waste treatment. Forward osmosis (FO), using simulated reverse osmosis brine, is a low-energy membrane technology that can be employed to efficiently harvest microalgae from a dilute solution. In this study, Scenedesmus obliquus, a green microalga, was cultivated with a fertilizer plant wastewater formula and simulated coal-fired power plant flue gas and then separated through either FO, with reverse osmosis reject model water as the draw solution, or sedimentation. Microalgal batches grown with simulated wastewater removed NH₄

SUBMITTER: Molitor HR 

PROVIDER: S-EPMC8280685 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature