Title :
Study on forming aerobic granular sludge on domestic sewage
Author :
Dan, Zhou ; Yonghong, Zhao
Author_Institution :
Sch. of Resource & Environ. Eng., Jiangxi Univ. of Sci. & Technol., Ganzhou, China
Abstract :
The use of aerobic granules in wastewater treatment can reduce the land area that is needed for the treatment of sewage. Until now granulation has been mainly studied using artificial wastewater. The possibility of forming aerobic granules on domestic sewage in a sequencing batch reactor was studied on three experimental stages. By controlling organic loading of influent and surface air upflow velocity, settling time as well. After 5 week of operation, aerobic granular have been seen. Until 14 week sludge has been granulation in SBR. The matured aerobic granular sludge has an average diameter of 0.63-1.6 mm, wet density 1.0173g/cm3, SVI 50, and MLSS 3. 5 g/L in reactor.
Keywords :
batch processing (industrial); chemical reactors; granular materials; sewage treatment; sludge treatment; wastewater treatment; aerobic granules formation; artificial wastewater; domestic sewage; granulation; influent; land area; matured aerobic granular sludge; organic loading control; sequencing batch reactor; settling time; sewage treatment; surface air upflow velocity; wastewater treatment; Biotechnology; Educational institutions; Effluents; Extracellular; Inductors; Loading; Wastewater; SBR; aerobic granular sludge; sewage;
Conference_Titel :
Consumer Electronics, Communications and Networks (CECNet), 2011 International Conference on
Conference_Location :
XianNing
Print_ISBN :
978-1-61284-458-9
DOI :
10.1109/CECNET.2011.5769454
