Harvesting of Scenedesmus obliquus FSP-3 using dispersed ozone flotation

Cheng, Ya Ling; Juang, Yu Chuan; Liao, Guan Yu; Tsai, Pei Wen; Ho, Shih‐Hsin; Yeh, Kuei Ling; Chen, Chun‐Yen; Chang, Jo Shu; Liu, Jhy Chern; Chen, Wen Ming; Lee, Dong Hoon

doi:10.1016/j.biortech.2010.04.083

Cited by 83 publications

(21 citation statements)

References 30 publications

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“…The effectiveness of dissolved air flotation may be increased by reduction of the negative charge carried by the air bubbles. This may be achieved by the addition of a cationic surfactant or other chemicals to give a net positive charge [93].…”

Section: Harvesting Strategiesmentioning

confidence: 99%

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Dual role of microalgae: Phycoremediation of domestic wastewater and biomass production for sustainable biofuels production

et al. 2011

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Section: Harvesting Strategiesmentioning

confidence: 99%

“…Ozonation-dispersed floatation and floatation employing a method of creating charged bubbles [92,93]. The mechanism of action is interaction with the negatively charged hydrophilic surfaces of algal cells.…”

Section: Harvesting Strategiesmentioning

confidence: 99%

Dual role of microalgae: Phycoremediation of domestic wastewater and biomass production for sustainable biofuels production

et al. 2011

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“…Dispersed ozone flotation (DiOF) is a typical DiAF system in which air is replaced by ozone. Ozone is a powerful oxidizing agent converting the covalent bonds and aromatic groups with high electron content to the new carboxylic group compounds like aldehydes and ketones . Recently, microalgae S. obliquus FSP‐3 and C. vulgaris were successfully harvested (efficiency above 95%) by DiOF with considerable very low dose of ozone.…”

Section: Methods To Induce Flotationmentioning

confidence: 99%

Flotation: A promising microalgae harvesting and dewatering technology for biofuels production

Ndikubwimana

Chang

Xiao

et al. 2016

Biotechnology Journal

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Microalgal biomass as renewable energy source is believed to be of great potential for reliable and sustainable biofuels production. However, microalgal biomass production is pinned by harvesting and dewatering stage thus hindering the developing and growing microalgae biotechnology industries. Flotation technology applied in mineral industry could be potentially applied in microalgae harvesting and dewatering, however substantial knowledge on different flotation units is essential. This paper presents an overview on different flotation units as promising cost-effective technologies for microalgae harvesting thus bestowing for further research in development and commercialization of microalgae based biofuels. Dispersed air flotation was found to be less energy consuming. Moreover, Jameson cell flotation and dispersed ozone flotation are believed to be energy efficient microalgae flotation approaches. Microalgae harvesting and dewatering by flotation is still at embryonic stage, therefore extended studies with the focus on life cycle assessment, sustainability of the flotation unit, optimization of the operating parameters using different algal species is imperative. Though there are a number of challenges in microalgae harvesting and dewatering, with well designed and developed cultivation, harvesting/dewatering, extraction and conversion technologies, progressively, microalgae technology will be of great potential for biological carbon sequestration, biofuels and biochemicals production.

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“…Since the microalgae cells are negatively charged, air bubbles do not interact effectively unless a surfactant is added [56]. The use of another type of gas bubble (e.g., hydrogen, ozone) might improve the flotation performance due to specific interaction between the bubbles and microalgae cells [57].…”

Section: Microalgae Cultivation Harvesting and Dewateringmentioning

confidence: 99%

Microalgae in Food-Energy-Water Nexus: A Review on Progress of Forward Osmosis Applications

et al. 2019

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Nowadays the world is facing vulnerability problems related to food, energy and water demands. The challenges in those subsystems are intertwined and thus require inter-discipline approaches to address them. Bioresources offer promising solutions of the dilemma. Microalgae biomass is expected to become a superfood and a favorable energy feedstock and assist in supplying clean water and treat wastewater. Efficient mass production of microalgae, both during upstream and downstream processes, is thus a key process for providing high quality and affordable microalgae biomass. This paper covers recent progress in microalgae harvesting and dewatering by using osmotic driven membrane process, i.e., forward osmosis. Critical factors during forward osmosis process for microalgae harvesting and dewatering are discussed. Finally, perspective on further research directions and implementation scenarios of the forward osmosis are also provided.

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Harvesting of Scenedesmus obliquus FSP-3 using dispersed ozone flotation

Cited by 83 publications

References 30 publications

Dual role of microalgae: Phycoremediation of domestic wastewater and biomass production for sustainable biofuels production

Dual role of microalgae: Phycoremediation of domestic wastewater and biomass production for sustainable biofuels production

Flotation: A promising microalgae harvesting and dewatering technology for biofuels production

Microalgae in Food-Energy-Water Nexus: A Review on Progress of Forward Osmosis Applications

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