The Context
In desalination, energy and membranes account for most of the cost of each cubic meter of water. Each reverse osmosis train and each high-pressure pump can be compared with its expected performance, using the data already recorded by the plant.
Typical Challenges
- High specific energy consumption
- Membrane fouling and replacement cycles
- Performance of energy recovery and auxiliary systems
- Variable power availability and water demand
What Can Be Done
Performance Evaluation
Each train is compared with its expected performance, and drift in energy consumption or recovery is detected early.
Predictive Maintenance
Pump and membrane degradation is monitored, so that cleaning and replacement are planned on condition.
Production Optimization
Train sequencing, pumping and dosing are optimized, and the need for each item of high-pressure equipment is verified.
Experience
Previous projects include the performance and energy analysis of one of the largest seawater reverse osmosis plants in operation, awarded at a record-low water tariff.