25
Version: 20221219
Multi-stage systems often incorporate 5-8 stages in order to optimize the performance of the
membrane. Below is shown a simplified diagram of a three-stage system with mix-flow at the
third stage.
The optimal process configuration is highly application dependent, and an application specific
process configuration must be thought trough to each industrial application including CIP
system, degree of automation, temperature control system etc.
G.
CIP operation
The following procedure is a general guideline applicable for the cleaning of the Vibro-I. The
individual process and product may require a different approach to achieve satisfactory
cleaning results. Please consult a qualified chemicals supplier for application specific cleaning
regimes.
For each cleaning step ensure that liquid flows through the permeate line. This is done by
closing the retentate valve slightly to generate sufficient membrane pressure. As the
membranes gets more clean the retentate pressure may be reduced again.
During CIP ensure around 50/50 flow through the permeate and the retentate outlet at as low
trans membrane pressure as possible.