Partial Recovery CIP Systems  

Introduction

The partial recovery philosophy can be set up in a number of ways. In all cases the pre-rinse is sent to waste. The main rinse delivers the main wash to the equipment and then recirculates it through the CIP system to re-apply the same fluid. Once the main wash is finished, it is either reclaimed into a tank for re-use as the main wash on the next clean or it is dumped. The final rinse is then used to remove all traces of detergent from the equipment. This rinse is made up of clean water and small residues of detergent. This rinse is either dumped (if the main wash has been reclaimed) or reclaimed to another tank for re-use (if the main wash has been dumped). In this manner some of the CIP liquid is used twice.

Usage

This type of system is used normally in similar applications to the total recovery or in semi-critical applications where water usage is un-desirable. Examples of its usage are when the soilage is too heavy or the client does not wish to allow re-use of the main wash again (it therefore only reclaims the final rinse) and if budget limitations exclude a total loss system (in this case the main wash (the expensive fluid) is reclaimed for re-use). These systems are used in any industries as they fall between the two types detailed above. 

Running Costs

This type of CIP has lower running costs than total loss but higher costs than total recovery.

Types 

There are many types of partial recovery CIP systems using different methodology. The only retained principle as that of reclaiming some of the liquid for re-use.

Diagram