Originally Posted by udithausk

dear all,

I have blower - 10,000 CFM and pump capacity 5000 gal per hrour

wet scrubber design liquid gas ratio L/G is = liquid l/min/ gas l/min

5000 gal per hour - 315 L/min

10,000 CFM = 283,200 L/min

L/G ratio= 315/283,200 = 0.0011 (dimensional less)

I am I correct ?

what is the proper range for venturi scrubber L/G ratio ?

thanks

Uditha

uditha@sigmatechnologieslk.com

udithausk@yahoo.com.sg

0094777795305

you can conider Liquid to Gas ratio as 5-15gpm per thousand SCFM of gas (as per ACGIH Guidelines). You can also refer usepa.gov website for more details.

regards,

Pavan ■

I have just looked at this ACGIH society and found no standards bearing their credentials. Guidelines, yes: Standards,no.

Please elaborate. ■

Originally Posted by louispanjang

I have just looked at this ACGIH society and found no standards bearing their credentials. Guidelines, yes: Standards,no.

Please elaborate.

Dear louispanjang,

I totally agree with you and corrected my earlier post from "ACGIH standards to ACGIH Guidelines".

Thanks,

Pavan. ■

ACGIH will not be much help.

Scrubber design is a proprietary thing based on historical experience (and a bit of plaigarism). Essentially, the liquid flow rate is determined partly by the tolerable solids concentration in the recirculating liquor and partly by the design pressure loss. A figure of 10% solids by weight is a safe number for recirculation.

Make-up water is needed to replace slurry draw-off. Also to replace the amount lost in the saturated exhaust air.

Michael Reid. ■