Sher Khan - Academia.edu (original) (raw)

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Papers by Sher Khan

In moving biofilm membrane bioreactor (MB-MBR) sponge carriers for biofilm growth were coupled wi... more In moving biofilm membrane bioreactor (MB-MBR) sponge carriers for biofilm growth were coupled with
conventional submerged membrane bioreactor (C-MBR). This study compared the fouling propensity of
C-MBR with MB-MBR and investigated factors affecting fouling variations in both the systems. Membrane
fouling tendencies were monitored in terms of trans-membrane pressure (TMP) and the fouling characterization
included membrane fouling resistances in situ and specific cake resistance (SCR) in batch filtration
cell. Comparison of TMP profiles depicted prolong filtration periods in MB-MBR. Cake layer
resistance (Rc), pore blocking resistance (Rp) as well as SCR were higher in C-MBR. The study reveals that
hybrid biomass in MB-MBR creates relatively more porous cake structure in the absence of filamentous
bacteria which were found in abundance in C-MBR. Filamentous bacteria were also responsible for the
release of high concentration of carbohydrates in the form of soluble extra polymeric substance (EPS)
contributing to higher Rp in C-MBR.

In moving biofilm membrane bioreactor (MB-MBR) sponge carriers for biofilm growth were coupled wi... more In moving biofilm membrane bioreactor (MB-MBR) sponge carriers for biofilm growth were coupled with
conventional submerged membrane bioreactor (C-MBR). This study compared the fouling propensity of
C-MBR with MB-MBR and investigated factors affecting fouling variations in both the systems. Membrane
fouling tendencies were monitored in terms of trans-membrane pressure (TMP) and the fouling characterization
included membrane fouling resistances in situ and specific cake resistance (SCR) in batch filtration
cell. Comparison of TMP profiles depicted prolong filtration periods in MB-MBR. Cake layer
resistance (Rc), pore blocking resistance (Rp) as well as SCR were higher in C-MBR. The study reveals that
hybrid biomass in MB-MBR creates relatively more porous cake structure in the absence of filamentous
bacteria which were found in abundance in C-MBR. Filamentous bacteria were also responsible for the
release of high concentration of carbohydrates in the form of soluble extra polymeric substance (EPS)
contributing to higher Rp in C-MBR.

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