Vapour-compression multi-stage evaporation, usually tied to a waste-heat source. Catalogued for orientation; EngiMetric models no MED thermal or performance figures.
- Information only
- Not quantitatively modeled
Hybrid RO + Thermal
Combining SWRO with a thermal stage, usually to treat the RO concentrate thermally. EngiMetric models the RO half of this arrangement only.
Overview
Combining SWRO with a thermal stage, usually to treat the RO concentrate thermally. EngiMetric models the RO half of this arrangement only.
How it works
Separation mechanism and feed window. Combines two processes, so feed management must satisfy both.
What the process produces. Product from both halves, often blended to a common specification.
Energy. Mixed. SWRO contributes electrical demand; the thermal stage contributes heat.
Process sequence
Where this technology normally sits in a treatment train. The steps either side of it are documented in the Library as separate entries.
- SWRO
- RO concentrate
- MED or MSF on concentrate
- Blended product or separate streams
Typical applications
- Gulf-coastal plants pairing SWRO with MED
- Improving utilisation of a waste-heat source
- Reducing volume of a high-salinity concentrate
Main equipment
- Full SWRO train
- Thermal train
- Concentrate transfer and blending
Key design parameters
The parameters an engineer actually sets, and why each one drives the design. EngiMetric does not assume any of them.
| Parameter | Why it matters |
|---|---|
| Split between RO and thermal product | Determines the economics of the combination. |
| RO concentrate flow and TDS | The thermal stage feed; EngiMetric derives the TDS by salt conservation. |
| Available waste heat | Determines whether the thermal stage is viable at all. |
Advantages
- Better overall use of a waste-heat source.
- Concentrate volume reduction.
Limitations
- Two disciplines to operate.
- Economics depend heavily on the heat source.
Engineering considerations
- EngiMetric quantifies the RO side and the concentrate handed to the thermal side. It does not quantify the thermal side.
Status and EngiMetric support
Industry maturity and commercial status describe the technology itself. EngiMetric support and quantitative modeling describe what this platform does with it — and those two are read from the engineering registry at build time, so they cannot drift from the code.
- Engineering maturity
- Established How established the technology is in the industry. Not an EngiMetric claim.
- Commercial status
- Commercial Where the technology sits in the market. Not an EngiMetric claim.
- EngiMetric support
- Information only No execution-registry entry exists, so no support is claimed.
- Design engine
- No Whether the Plant Designer can carry this as a configured process step.
- Quantitative modeling
- Partial No engine exists, so EngiMetric states no figure for this technology.
Related tools
Every tool below exists and is live. EngiMetric does not duplicate a formula here — the calculation lives in the tool, and this page links to it.
- RO Concentrate Flow Calculator The concentrate flow the thermal stage would have to treat.