Continuous feed-quality monitoring — SDI, turbidity, chlorophyll, ORP and particle counting — that protects the reverse-osmosis investment and triggers the right response.
SWRO Intake & Pre-Treatment for Desalination
You cannot protect an RO plant you are not measuring. Online monitoring of silt density index, turbidity, chlorophyll, oxidation-reduction potential and particle count gives early warning of fouling risk, algal blooms and chlorine breakthrough — so operators dose, switch or shut down before the membranes are harmed.
The feed-quality parameters that matter
The key RO fouling index; automated SDI analysers trend pre-treatment performance.
Continuous nephelometric turbidity on filtered feed.
Chlorophyll-a as early warning of harmful algal blooms.
Confirms dechlorination — no oxidant reaches the membranes.
Detects filter breakthrough and integrity loss.
Logged, alarmed and trended for compliance and control.
Typical engineering envelope
| Parameter | Target | Why |
|---|---|---|
| SDI₁₅ | <3 (media), <2.5 (UF) | RO fouling index |
| Turbidity | <0.1 NTU | Particulate load to RO |
| Chlorophyll-a | Trend / alarm | Algal-bloom early warning |
| ORP / free Cl₂ | <0.1 mg/L at RO | Membrane oxidant protection |
| Particle count | Trend | Filter integrity |
Continue across the SWRO intake & pre-treatment series
A companion stage of the SWRO pre-treatment train.
Read MoreA companion stage of the SWRO pre-treatment train.
Read MoreA companion stage of the SWRO pre-treatment train.
Read MoreA companion stage of the SWRO pre-treatment train.
Read MoreA companion stage of the SWRO pre-treatment train.
Read MoreThe intake-systems hub these stages belong to.
Read MoreProtecting SWRO membranes from fouling and oxidants.
Read MoreFish protection and 316(b) intake design.
Read MoreA companion stage of the SWRO pre-treatment train.
Read MoreComplete SWRO desalination plant solutions.
Read MoreOur desalination engineers design the complete intake and pre-treatment train — sdi & monitoring and every stage — to deliver a low-SDI, membrane-safe feed at minimum lifecycle cost.
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Send your influent analysis and our engineers assess your process and recommend a tailored treatment solution — free, confidential and no obligation.
Select the regulatory standard for your country — it sets which parameters we need for a compliance-aware process assessment.
Required parameters for the chosen standard are flagged on the sample form. You can still submit a partial set and we will advise what else to test.
Your sample is stored against your company so we can track the project. Provide a company name or email as a minimum.