Facile sand enhanced electro-flocculation for cost-efficient harvesting of Dunaliella salina of Dunaliella salina
Energy consumption and water resource in the cultivation and harvesting steps still need to be minimized for the popularization of the microalgae-based products.An efficient electro-flocculation method for harvesting Dunaliella Salina integrated with local sand has been successfully applied.Sand was effective for speeding up the processes of flocculation and sedimentation of algal flocs and the electrolytic hydroxides was essential to bridge the sand and small flocs into large dense flocs.The maximal recovery effective improved from 95.13%in 6 min to 98.09%in 4.5 min and the optimal electrical energy consumption decreased 51.03%compared to conventional electro-flocculation in a laboratory ambient condition.Furthermore,reusing the flocculated medium in cultivation of the D.Salina with nitrogen supplemented performed no worse than using fresh medium.This sand enhanced electro-flocculation(SEF)technology provides a great potential for saving time and energy associated with improving microalgae harvesting.
Electro-flocculation Dunaliella Salina Zeta-potential
Qiong Xiong Qi Pang Xinwei Pan A.Okonkwo Chika Liqing Wang Jia Shi Lishan Jia Changping Chen Yahui Gao
Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, X School of Life Sciences, and Key Laboratory of the Ministry of Education for Coastal and Wetland Eco
国内会议
北京
英文
326-330
2015-10-16（万方平台首次上网日期，不代表论文的发表时间）