TY - JOUR
T1 - Studies on technology of CSF flocculation for microalgae
AU - Chen, Xiaoyan
AU - Lin, Xiangyang
AU - Wang, Jing
AU - Shen, Ying
AU - Ruan, Rongsheng
AU - Liu, Minghua
N1 - Publisher Copyright:
© 2016, Editorial Office of Journal of CIFST. All right reserved.
PY - 2016/9/30
Y1 - 2016/9/30
N2 - To harvest microalgae in a high concentration and efficiency way limits the scale development of microalgae industry, so researching an efficient, environmentally friendly and economical technology on microalgae harvesting is of great significance for microalgae harvesting areas. Cationic starch flocculant is a new technology of microalgae harvesting. In microalgae flocculation experiments by CSF(DS=0.32), taking flocculation efficiency as the target, examining the influence of stirring time, stirring speed, settling time and pH value of the solution microalgae. And the safety and economy of CSF was assessed. The results show that the optimum flocculation condition was as follows: stirring time 10 min, stirring rate 200 r/min, sedimentation time 20min; The microalgae flocculation efficiency is not affected by the pH value of microalgae flocculation system; CFS does not affect the physiological activity of microalgae and is a safe and sound flocculant; The flocculation cost for harvesting 1 kilogram microalgae was 0.2 yuan by using the prepared CSF (DS=0.32), which meet the demand of economy in microalgae biodiesel.
AB - To harvest microalgae in a high concentration and efficiency way limits the scale development of microalgae industry, so researching an efficient, environmentally friendly and economical technology on microalgae harvesting is of great significance for microalgae harvesting areas. Cationic starch flocculant is a new technology of microalgae harvesting. In microalgae flocculation experiments by CSF(DS=0.32), taking flocculation efficiency as the target, examining the influence of stirring time, stirring speed, settling time and pH value of the solution microalgae. And the safety and economy of CSF was assessed. The results show that the optimum flocculation condition was as follows: stirring time 10 min, stirring rate 200 r/min, sedimentation time 20min; The microalgae flocculation efficiency is not affected by the pH value of microalgae flocculation system; CFS does not affect the physiological activity of microalgae and is a safe and sound flocculant; The flocculation cost for harvesting 1 kilogram microalgae was 0.2 yuan by using the prepared CSF (DS=0.32), which meet the demand of economy in microalgae biodiesel.
KW - Cationic starch
KW - Flocculation efficiency
KW - Harvesting
KW - Microalgae
KW - Scenedesmus obliqnus
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U2 - 10.16429/j.1009-7848.2016.09.021
DO - 10.16429/j.1009-7848.2016.09.021
M3 - Article
AN - SCOPUS:85003605072
SN - 1009-7848
VL - 16
SP - 151
EP - 156
JO - Journal of Chinese Institute of Food Science and Technology
JF - Journal of Chinese Institute of Food Science and Technology
IS - 9
ER -