Title :
Influence of Biochemical Conditions on Activated Sludge Granulation
Author :
Sun, Lei ; Wang, Lin ; Zhang, Hailing
Author_Institution :
Coll. of Environ. Sci. & Eng., Ocean Univ. of China, Qingdao, China
Abstract :
To demonstrate the influence of biological and chemical conditions on the formation of aerobic granules, a comparative study was conducted in three parallel SBRs(Sequencing Batch Reactors) by inoculating different seeding sludge and cultivating them with different carbon sources, the effects of seeding sludge characteristics and carbon sources of raw water were evaluated. After initiation, granulation succeeded in each reactor with SVI and MLSS values reaching 50 ml/g and 6 g/L respectively, and was not influenced by biochemical conditions. However, the size of the mature granules was affected by seeding sludge, SOUR value, surface charges, and ECPs. The hydrophobic character of mature granules was found to be affected by biochemical conditions.
Keywords :
biochemistry; bioreactors; sludge treatment; activated sludge granulation; biochemical conditions; carbon sources; hydrophobic character; inoculation; parallel sequencing batch reactors; seeding sludge characteristics; surface charges; Agricultural engineering; Chemical industry; Educational institutions; Effluents; Inductors; Oceans; Sea surface; Soil; Wastewater treatment; Water resources;
Conference_Titel :
Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2901-1
Electronic_ISBN :
978-1-4244-2902-8
DOI :
10.1109/ICBBE.2009.5162955
