Microbial Behavior and its Impacts on Fouling of Membrane Bioreactor
Paper ID : 1351-MST2015-FULL
Authors:
Arsalan Sepehri1, Mohammad Hossein Sarrafzadeh *2, Mohammad Reza Mehrnia3
1UNESCO Chair on Water Reuse, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
2UNESCO Chair on Water Reuse, School of Chemical Engineering, College of Engineering, University of Tehran, Iran
3Associate Professor, School of Chemical Engineering, University College of Engineering, University of Tehran, P. O. Box: 11155-4563, Tehran, IRAN
Abstract:
Microbial community has a prominent role in the degradation of organic and inorganic material in wastewaters. Despite their helpful role, they produce materials which cause fouling in membrane bioreactors and result in increasing costs of this process. Different aspects of microbial behaviors such as their community, microbial products, and their activity are needed to be studied more. In this work, the effect of presence of high proportion of nitrifiers population on membrane fouling was studied. By increasing the proportion of nitrifiers in the MBR from 0 to 100 percent, the fouling will be decreased by 62.5 percent and it is a significant decrease in fouling.
Keywords:
membrane bioreactor; fouling; microbial community; microbial products
Status : Paper Accepted (Oral Presentation)