Phenolic Shock Load in a Submerged Ceramic Membrane Bioreactor for the Degradation of Aqueous Phenol

A. Aidan(1*), M. Mehrvar(2), T. H. Ibrahim(3), V. Nenov(4), R. Alnaizy(5)

(1) Department of Chemical Engineering, American University of Sharjah, United Arab Emirates
(2) Department of Chemical Engineering, Ryerson University, Canada
(3) Department of Chemical Engineering, American University of Sharjah, United Arab Emirates
(4) Department of Water Treatment Technology, Bourgas University, Bulgaria
(5) Department of Chemical Engineering, American University of Sharjah, United Arab Emirates
(*) Corresponding author


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Abstract


Laboratory-scale experiments were conducted to study the treatment of phenol contaminated wastewater using submerged ceramic membrane bioreactor (SCMBR) with flat-sheet-type ceramic membrane module. The effects of organic loading rate on the phenol degradation were studied using Polyseed bacteria containing a mixed culture of microorganisms with and without acclimatization. The experimental results showed that the phenol removal efficiency was over 75% at phenol concentrations of 400 mg/l with the COD removal efficiency of greater than 80%. For phenol concentrations of 800 mg/l, the removal efficiency dropped to about 40%, however, the system returned to its previous treatment efficiency once the phenol load was removed. As a result, it was observed that the bacteria survived at the high load phenol concentration of 800 mg/l
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Keywords


Phenol Degradation; Submerged Ceramic Membrane Bioreactor; SCMBR, Organic Shock Load

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