The rig is just the instrument carrier — the data is the deliverable. Every Reynolds & Bauhm desalination DAF pilot is built around a full online instrumentation suite and a logging architecture that turns weeks of live-seawater operation into a defensible scale-up dataset. This is what we measure, how we log it, and how you see it from anywhere in the world.
A DAF pilot that runs but isn't properly instrumented produces opinions, not evidence. To stand up in a design review, a financing case or a membrane warranty negotiation, every claim — "95% algae removal", "SDI₃ below 3", "coagulant demand peaks at X mg/L during the bloom" — has to be backed by continuous, time-stamped, traceable data from a calibrated instrument. We design the instrument schedule first and build the rig around it, the same way we instrument a full-scale plant with DAF instrumentation & control and containerised I&C.
Inlet, post-DAF and post-UF nephelometers track clarification continuously — the headline DAF performance signal.
Silt density / modified fouling index downstream of pre-treatment — the number RO membranes are specified against.
Online charge measurement closes the loop on coagulant dose as raw-water charge demand swings through a bloom.
Particle counter and chlorophyll-a fluorescence quantify the bloom load entering and leaving the DAF.
For hydrocarbon-bearing intakes, an online oil-in-water monitor proves removal before the membranes.
Salinity and temperature drive air solubility and bubble behaviour — logged at every stage.
Closed-loop pH on the coagulation front end and ORP where oxidant is dosed.
Mag flows on feed/recycle, saturator pressure, UF TMP and cartridge ΔP — the hydraulic fingerprint of the train.
| Location | Online instruments | What it proves |
|---|---|---|
| Raw intake | Turbidity, conductivity, temp, chlorophyll-a, oil-in-water | Feed envelope & bloom load |
| Coagulation | pH, streaming current, dose flow (cal column) | Coagulant demand & control |
| DAF outlet | Turbidity, particle count, recycle flow, saturator pressure | Float quality & loading limit |
| UF outlet | SDI₃, turbidity, TMP, flux, backwash counter | RO-grade feed & flux strategy |
| RO (if fitted) | Conductivity/TDS, pressure, normalised flux, recovery | Permeate quality & energy |
See intake monitoring for desalination → · DAF automated operation
Every instrument wired to a single PLC with a touchscreen HMI for live values, setpoints and manual overrides — the same platform as our containerised SCADA.
High-resolution trending of every tag, retained for the whole campaign and exportable to CSV for independent analysis.
4G/VPN dashboard so your engineers — and ours — watch the rig live and pull data without a site visit.
Threshold and rate-of-change alarms flag bloom onset, dosing faults or membrane fouling as they happen.
On-board lab bench validates online readings against jar tests, SDI₃ kit and turbidimeter for traceability.
Datasets feed directly into the analysis and the final pilot report that justifies the full plant.
Tell us the decisions the pilot must support and we will write the instrument schedule to match — then build the rig around it.
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