Back Flush 

Duration 

(min) 

1 

1 1 1 1 1 1 1 

Backwash Flux

 

1.5 or 2 times 

than the flux 

1.5 or 2 times than 

the flux 

1.5 or 2 times than 

the flux 

1.5 or 2 times than 

the flux 

1.5 or 2 times than 

the flux 

1.5 or 2 times than 

the flux 

1.5 or 2 times than 

the flux 

1.5 or 2 times than 

the flux 

Backwash Pressure

 

(MPa) 

0.1-0.2 0.1-0.2  0.1-0.2  0.1-0.2  0.1-0.2 0.1-0.2 0.1-0.2 0.1-0.2 

Down Wash 

Frequency 

Before back 

flush 

Before back flush 

Before back flush 

Before back flush 

Before back flush 

Before back flush 

Before back flush 

Before back flush 

Down Wash Duration 

(sec) 

10 

10 10 10 10 10 10 10 

Forward Wash 

Frequency 

After back flush 

After back flush 

After back flush 

After back flush 

After back flush 

After back flush 

After back flush 

After back flush 

Forward Wash 

Duration (sec) 

5 

5 5 5 5 5 5 5