By Topic

Preparation and characteristics of bioflocculant from excess sludge

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Xiuhong Zhang ; School of Chemistry, Dalian University of Technology, 116024, China ; Jie Sun ; Fengqi Zan ; Fangchen Guo
more authors

In this study, the feasibility of bioflocculant prepared from excess sludge to reduce its production costs and carve out a new way to attain bioflocculant was investigated. Three reagents were used to disintegrate excess sludge including alkali, acid and oxyful. Results showed that the performance of alkali treatment was the best. The flocculating rate of the prepared bioflocculant by the alkali and acid treatment for kaolin clay (5g/L) was 92.6%, 88.5% respectively. The prepared influence factors such as alkali dosage and treatment time were researched. The optimal conditions were 4 g alkali dosage and 30min treatment time for 100mL sludge suspension. Under these conditions, the flocculating rate of kaolin clay was 92.6%. The major component of purified bioflocculant was found to be polysaccharide. Infrared spectrum analysis showed the presence of hydroxyl and acylamino groups in the bioflocculant.

Published in:

Materials for Renewable Energy & Environment (ICMREE), 2011 International Conference on  (Volume:2 )

Date of Conference:

20-22 May 2011