Title :
Bioflocculant Synthesized by Klebsiella pneumoniae during 1,3-Propanediol and Bio-diesel Integration Process
Author :
Zheng Zong-ming ; Kang Peng ; Liu Zhong-ming ; Sun Yan ; Liu De-hua
Author_Institution :
Nat. Eng. Lab. for Biomass Power Generation Equip., North China Electr. Power Univ., Beijing, China
Abstract :
The bio-diesel and 1,3-prpanediol (1,3-PD) processes are combined in our practices. The properties of flocculant from 1,3-propanediol fermentation was investigated. The characterization of the bioflocculant by GPC indicated the average molecular weight was about 2.0×105 Da. The neutral mono saccharides were the main component of the flocculant. Ca2+, Mg2+, Cu2+, K+ and Na+ were employed as flocculant aid to investigate the flocculating activity with Kaolin suspension. Ca2+ and Mg2+ provided the significant positive effect whereas Cu2+ provided a negative effect. 3.4 mmol/1 Ca2+ was chosen for the further research. Two peaks of flocculating activity appeared at about pH 4.5 and 10, respectively. A case study of dye removal showed that the by-product flocculant from of 1,3-PD fermentation was a promising material for discoloring of textile wastewater.
Keywords :
biofuel; fermentation; flocculation; microorganisms; textile industry; wastewater treatment; 1,3-PD fermentation; 1,3-propanediol fermentation; Kaolin suspension; Klebsiella pneumoniae; biodiesel process; bioflocculant synthesis; flocculating activity; molecular weight; neutral monosaccharides; textile wastewater discoloring; Biofuels; Biological materials; Biomass; Capacitive sensors; Ethanol; Polymers; Power engineering and energy; Production; Proteins; Temperature;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4812-8
Electronic_ISBN :
978-1-4244-4813-5
DOI :
10.1109/APPEEC.2010.5448207
