Imaging the effect of aeration on particle fouling mitigation in a submerged membrane filtration using a photointerrupt sensor array
Journal
Separation Science and Technology (Philadelphia)
Journal Volume
52
Journal Issue
2
Pages
228-239
Date Issued
2017
Author(s)
Abstract
A non-destructive in-situ optical method using a photointerrupt sensor array was adopted to determine the variation of cake layer thickness in a membrane filtration process with aeration. The effect of air sparging on fouling mitigation was evaluated at different aeration conditions. Results from three-dimensional fouling contour studies showed that the average cake layer thickness increased proportionally with time during the initial period due to quick deposition of particles on the membrane surface and then growth rate of cake layer slowed down. The semi-continuous aeration could also suppress the membrane fouling at the same level as observed at continuous aeration. ? 2017 Taylor & Francis.
Subjects
Aeration
fouling mitigation
membrane bioreactor
online monitoring
photointerrupt sensor
water treatment
SDGs
Type
journal article