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Table 4

Parameter optimization for pressurized-pot microfiltration

StageDuration (days)Parameter adjustment
127 Maintain setup parameters 
90 Adjust filtration rate from 3.2 to 2.3 m3/h 
79 Adjust filtration rate from 2.3 back to 3.2 m3/h 
24 Adjust air-backflusing pressure from 0.2 to 0.3Mpa 
15 Adjust water-backflusing rate from 1 to 2 m3/h 
15 Adjust duration of backflushing from 2 to 4 min 
16 Adjust air-backflusing rate from 2 to 3 m3/h 
43 Adjust concentration of citric acid and NaOH from 2,500 ppm to 3,500 ppm 
StageDuration (days)Parameter adjustment
127 Maintain setup parameters 
90 Adjust filtration rate from 3.2 to 2.3 m3/h 
79 Adjust filtration rate from 2.3 back to 3.2 m3/h 
24 Adjust air-backflusing pressure from 0.2 to 0.3Mpa 
15 Adjust water-backflusing rate from 1 to 2 m3/h 
15 Adjust duration of backflushing from 2 to 4 min 
16 Adjust air-backflusing rate from 2 to 3 m3/h 
43 Adjust concentration of citric acid and NaOH from 2,500 ppm to 3,500 ppm 
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