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Table 2

Research variables used in this study

Research variable 1
Research variable 2
Fouling control methodaOperation methodFluxbEffective surface area of membrane module
Filtration No fouling control
Continuous filtration only 
18 LMH 867 cm2 
Relaxation Stop filtration for 1 min after 10 min filtration 27 LMH 578 cm2 
Standard backwash 1 min backwash after10 min filtration
Backwash at double flow rate in reverse direction 
36 LMH 434 cm2 
Chemical backwash 1 min twice a day in-line chemical backwash (500 ppm NaOCl) with standard backwash 54 LMH 289 cm2 
Research variable 1
Research variable 2
Fouling control methodaOperation methodFluxbEffective surface area of membrane module
Filtration No fouling control
Continuous filtration only 
18 LMH 867 cm2 
Relaxation Stop filtration for 1 min after 10 min filtration 27 LMH 578 cm2 
Standard backwash 1 min backwash after10 min filtration
Backwash at double flow rate in reverse direction 
36 LMH 434 cm2 
Chemical backwash 1 min twice a day in-line chemical backwash (500 ppm NaOCl) with standard backwash 54 LMH 289 cm2 

aDifferent fouling control operations were done at 27 LMH condition.

bDifferent flux operations were done with standard backwash.

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