Hydrothermal pretreatment of salvaged cyanobacteria and use of pretreated medium for cultivating Scenedesmus obliquus. (December 2019)

• Record Type: Journal Article
• Authors: Wang, Ruochen; Zhu, Wei; Hu, Siyuan; Feng, Ganyu; Xue, Zongpu; Chen, Huaimin
• Is Part Of: Bioresource technology. Volume 294(2019)
• Publication Date: 2019-12
• Subjects: Oil-producing microalgae -- Cyanobacteria -- Biodiesel -- Hydrothermal oxidation -- Culture medium; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2019.122120
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: Hydrothermal oxidation is promising for pretreating salvaged cyanobacteria slurry. High TN and TP conversion ratio is achieved by hydrothermal oxidation. Diluted aqueous product of hydrothermal oxidation as culture medium is better than control group. Abstract: This work studied the hydrothermal Pretreatment of Salvaged Cyanobacteria and used the pretreated slurry as medium for cultivating Scenedesmus obliquus . The cyanobacterial slurry was pretreated by chemical oxidation, hydrothermal treatment and hydrothermal oxidation, and then the cultivation experiment of oil-producing microalgae ( Scenedesmus obliquus ) was carried out. The results showed that hydrothermal oxidation could transform the hard-to-treat salvaged cyanobacteria into culture medium for microalgae. The oil yield from S. obliquus cultured in that was higher than that in conventional BG11 medium.