Energy-producing electro-flocculation for harvest of Dunaliella salina. (October 2017)

• Record Type: Journal Article
• Authors: Liu, Qing; Zhang, Meng; Lv, Tao; Chen, Hongjun; Chika, Anthony Okonkwo; Xiang, Changli; Guo, Minxue; Wu, Minghui; Li, Jianjun; Jia, Lishan
• Is Part Of: Bioresource technology. Volume 241(2017)
• Page Start: 1022
• Page End: 1026
• Publication Date: 2017-10
• Subjects: Electro-flocculation -- Dunaliella salina -- Aluminum-air battery -- Energy production; 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.2017.05.196
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: Availability of aluminum-air battery for microalgae recovery. Producing energy during microalgae harvesting. Possible mechanisms of discharging electro-flocculation were discussed. Abstract: In this study, an efficient electro-flocculation process for Dunaliella salina with energy production by aluminum-air battery has been successfully applied. The formed aluminum hydroxide hydrates during discharging of battery were positively charged, which have a great potential for microalgae flocculation. The precipitation of aluminum hydroxide hydrates by algae also could improve the performance of aluminum-air battery. The harvesting efficiency could reach 97% in 20 mins with energy production of 0.11 kWh/kg. This discharging electro-flocculation (DEF) technology provides a new energy producing process to effectively harvest microalgae.