Abstract：
:Three models (blocking laws, combined and resistance-in-series) were applied to identify the prevailing fouling mechanisms in a submerged membrane in an up-flow anaerobic sludge blanket reactor treating municipal wastewater. Experimental runs were carried out at lab-scale with filtration periods of 4 and 10 min, followed by relaxation periods of one minute with and without nitrogen bubbling. In all conditions excepting one (IF4R), the blocking laws model showed a predominance of cake formation. With the combined model, cake formation coupled with intermediate, standard and complete fouling had the better fits in all conditions, excepting IF4 and IF4R. When sewage was fed, both models pointed at intermediate fouling in the absence of gas bubbling. The resistance-in-series model identified the positive effect of gas bubbling and a post-cake fouling behavior, not shown by the other two models. This modeling approach could be applied for achieving longer filtration runs in submerged UF membranes.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Cerón-Vivas A,Kalboussi N,Morgan-Sagastume JM,Harmand J,Noyola Adoi
10.1016/j.biortech.2018.08.017subject
Has Abstractpub_date
2018-11-01 00:00:00pages
460-469eissn
0960-8524issn
1873-2976pii
S0960-8524(18)31111-8journal_volume
268pub_type
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