- Poor Pretreatment like ...
Published by Shashank Sharma, Chemical Engineer at Metito
- Poor Pretreatment like Coagulation, chlorination and Dechlorination will limit /damage performance of membranes may lead to microbio fouling
- Underdosing/Overdosing of Antiscalant used will lead Membrane Scaling/Fouling.
- No proper CIP program ( Cleaning in place) in place will effect Membrane life and RO performance. This will lead to membrane fouling /scaling .
2 Comments
I couldn't agree more, Shashank!
Published by Ing.Tiziano Zampollo, Employee at Water Engineers & Consultants - WEnCo
Can you say more about the "proper CIP program" mentioned here? What does cleaning in place look like for an RO membrane?
Published by Turner Tomlinson
1 Comment
Clean in Place is the ordinary way we clean membranes without removing them from vessels.
High pressure pump stops and low pressure pump performs a sequence of washings with acidic/alkaline/biocide solution discharging the used solution.
A CIP program is based on foulants found in the feedwater and must be implemented along with the system design as a normal operative procedure: that's why (almost-) any RO unit is equipped with onboard CIP tank and chemical dosing pump (or separate skids) and HMI often features automatic cleaning phases based (usually) on working hours.
Published by Ing.Tiziano Zampollo, Employee at Water Engineers & Consultants - WEnCo