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

fYear

2010

fDate

28-31 March 2010

Firstpage

1

Lastpage

4

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 2.0Ã—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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/APPEEC.2010.5448207

Filename

5448207