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Water & wastewaterProcess & water

Vaucluse Water Treatment Works

A 42 Ml/d municipal drinking-water works: raw-water intake, coagulation, three ultrafiltration skids, UV and chlorine disinfection, clearwell storage and pressure-managed distribution.

DjiniousCCOperations & SCADA
DjiniousCC
The Vaucluse Water Treatment Works process overview in DjiniousCC: raw-water pumps, intake valve, three ultrafiltration skids, UV reactor, chlorine dosing, clearwell and three distribution pumps, with live flows on every line.
site code
AQUAsite code
assets
16assets
live tags
116live tags
authority class
C4authority classoperational action

Site AQUA, Avignon, France. These are not mock-ups: all five sites run side by side in the same DjiniousCC instance — 99 assets and 693 live tags, acquired at 1 Hz, historised, alarmed, and each with a procedure that has been dry-run and proven on an isolated twin.

A fouled membrane skid is a compliance problem, not a maintenance ticket

UF-03 runs at a fouling index of 61 %, holding transmembrane pressure at 1.60 bar — past the 1.35 bar backwash limit. Take it out of service naively and the works loses a third of its treated-water capacity during peak demand. Leave it fouled and permeate turbidity climbs toward the membrane-integrity limit.

What the platform models here

Each family has a behavioural model that the live simulator and the proving twin share, so a dry-run behaves the way the plant does.

Centrifugal pumps · Ultrafiltration skids · UV reactor · Dosing skids · Clearwell · Analyser · Blower · Control valve

The procedure: Ultrafiltration Backwash & Load Transfer

Recover a fouled ultrafiltration skid without losing treated-water output: take UF-03 off duty and backwash it, transfer its load to UF-01 and UF-02, and confirm with the treatment supervisor before the change is applied. Authority class: C4 · operational action.

  1. Step 1

    Reduce UF-03 flux → 40 %

  2. Step 2

    Backwash UF-03

  3. Step 3

    Raise UF-01 flux → 96 %

  4. Step 4

    Raise UF-02 flux → 96 %

  5. Step 5

    Treatment-supervisor confirmation

  6. Step 6

    Notify control room

The proof: UF-03 Fouling Excursion

UF-03 enters the shift already fouled and continues to foul while the other two skids run at normal flux.

Baseline — without the procedure

  • UF-03 transmembrane pressure ≤ 1.35 bar — measured 1.62 bar
  • UF-01 / UF-02 permeate ≥ 340 m³/h each — measured 334.9 m³/h

With the procedure — every assertion holds

  • UF-03 transmembrane pressure ≤ 1.35 bar — measured 0.56 bar
  • UF-01 / UF-02 permeate ≥ 340 m³/h each — measured 365.4 m³/h

Baseline fails both assertions. With the procedure, four commands are intercepted on the isolated twin and both hold.

What the control room sees

DjiniousCC
The DjiniousCC operator dashboard scoped to the water works: asset counts, availability, active alarms, a live trend of works output and distribution flows, and the plant status grid by equipment family.
The dashboard adapts to the plant. No generation here, so the KPI row is assets, availability and alarms — and the hero trend is the works' own signals.
DjiniousCC
The DjiniousCC alarm list showing ISA-18.2 priorities, states and acknowledgement controls.
ISA-18.2 alarm management. UF-03's transmembrane pressure alarm is a real threshold crossing on a real tag.
DjiniousCC
The authored ultrafiltration backwash procedure rendered as BPMN, with its validation report and capability list.
The procedure as the platform holds it: BPMN, validated, with its required capabilities and authority class.

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