IND-04Utilities
Water & Wastewater Instrumentation & Automation
Flow, level and water-quality measurement with treatment-plant, pump-station and network automation — from intake to discharge.
Capability area · no project records published yet
01Intake & raw water
- FT-101, flow transmitter
- LT-102, level transmitter
- AT-103, analyzer transmitter (NTU)
02Clarification & filtration
- FT-201, flow transmitter
- AT-202, analyzer transmitter (NTU)
- PDT-203, differential pressure transmitter
03Disinfection
- AT-301, analyzer transmitter (Cl₂)
- AT-302, analyzer transmitter (pH)
- FT-303, flow transmitter
04Storage & distribution
- LT-401, level transmitter
- FT-402, flow transmitter
- PT-403, pressure transmitter
05Biological treatment
- AT-501, analyzer transmitter (DO)
- AT-502, analyzer transmitter (TSS)
- FT-503, flow transmitter
06Sludge handling
- FT-601, flow transmitter
- LT-602, level transmitter
- PT-603, pressure transmitter
01Process context
The process environment
Water and wastewater systems move and treat large volumes continuously, across plants, pump stations, reservoirs and networks that are often widely dispersed. Flow and level measurement drive pumping and inventory decisions; water-quality analysis drives treatment steps and chemical dosing.
Wastewater adds solids, grease, foam and variable composition that challenge sensors, while potable-water treatment depends on dependable disinfection control and records. Many sites are unmanned, so telemetry, diagnostics and maintainable installations decide whether the data can be trusted.
02Measurement & control points
Typical measurement and control points
General practice across water & wastewater facilities, in process order: what is measured, the technology commonly used and how it reaches control. Illustrative — every plant differs.
| Process area | Parameters | Typical technology | Integration |
|---|---|---|---|
01Intake & raw water
|
|
| Pump control on level; raw-water quality passed forward to treatment control. |
02Clarification & filtration
|
|
| Dose pacing on flow; backwash sequencing on head loss or run time. |
03Disinfection
|
|
| Chlorine dosing on flow and residual, with low-residual alarms. |
04Storage & distribution
|
|
| Telemetry from remote sites to central SCADA; pump scheduling on demand and level. |
05Biological treatment
|
|
| Blower control on dissolved oxygen — aeration is often the largest energy load in activated-sludge plants. |
06Sludge handling
|
|
| Sludge pump and thickener control; digester monitoring. |
01
Intake & raw water
- FT-101
- LT-102
- AT-103NTU
- Parameters
- Raw-water flow
- Sump or well level
- Turbidity
- pH
- Typical technology
- Electromagnetic flowmeters
- Hydrostatic or radar level
- Turbidity and pH sensors
- Integration
- Pump control on level; raw-water quality passed forward to treatment control.
02
Clarification & filtration
- FT-201
- AT-202NTU
- PDT-203
- Parameters
- Coagulant dose
- Clarified turbidity
- Filter head loss
- Filter outlet flow
- Typical technology
- Dosing flow measurement
- Turbidity analyzers
- DP transmitters across filters
- Integration
- Dose pacing on flow; backwash sequencing on head loss or run time.
03
Disinfection
- AT-301Cl₂
- AT-302pH
- FT-303
- Parameters
- Residual chlorine
- pH
- Contact-tank flow
- Typical technology
- Free or total chlorine analyzers
- pH sensors
- Flowmeters
- Integration
- Chlorine dosing on flow and residual, with low-residual alarms.
04
Storage & distribution
- LT-401
- FT-402
- PT-403
- Parameters
- Reservoir level
- Outlet flow
- Network pressure
- Typical technology
- Hydrostatic or radar level
- Electromagnetic or ultrasonic flow
- Pressure transmitters
- Integration
- Telemetry from remote sites to central SCADA; pump scheduling on demand and level.
05
Biological treatment
- AT-501DO
- AT-502TSS
- FT-503
- Parameters
- Dissolved oxygen
- Suspended solids
- Aeration air flow
- Typical technology
- Optical DO sensors
- Suspended-solids sensors
- Thermal mass or DP air flow
- Integration
- Blower control on dissolved oxygen — aeration is often the largest energy load in activated-sludge plants.
06
Sludge handling
- FT-601
- LT-602
- PT-603
- Parameters
- Sludge flow
- Thickener and digester level
- Digester pressure
- Biogas flow
- Typical technology
- Electromagnetic flowmeters
- Radar level
- Pressure transmitters
- Gas flowmeters
- Integration
- Sludge pump and thickener control; digester monitoring.
Tag key · ISA 5.1
- FT
- Flow transmitter
- LT
- Level transmitter
- AT
- Analyzer transmitter
- PDT
- Differential pressure transmitter
- PT
- Pressure transmitter
Loop numbers follow the process area — 1xx for area 01, 2xx for area 02 — as on a plant P&ID. The points are typical of the industry, not taken from a specific plant.
03Engineering considerations
What makes water & wastewater facilities demanding
The conditions that shape instrument selection, installation and control design in this environment.
Dispersed, unmanned sites
Pump stations and reservoirs are spread across a network. Telemetry, power supply and device diagnostics determine whether remote data is reliable without routine visits.
Solids, fouling and foam
Wastewater sensors need cleaning arrangements and suitable principles; non-contact level has to be chosen with foam, condensation and turbulence in mind.
Quality records
Treated-water and discharge quality is typically reported to regulators, so analyzer calibration, verification and data continuity need to be planned — not assumed.
Wet and corrosive locations
Enclosure ratings, cable protection and H₂S in wastewater atmospheres affect equipment life; digesters and some enclosed spaces also carry hazardous-area requirements.
04Capabilities
How Spaaronn's capabilities apply
Spaaronn's capability scope, read for water & wastewater facilities — from individual measurements to integrated, supported systems.
- 01InstrumentationFlow, level and pressure instruments for plants, pump stations and networks; installed, calibrated and loop-checked.
- 02Industrial AutomationPLC and SCADA for treatment processes and pump stations, with telemetry from remote sites to a central control room.
- 03Analytical SystemspH, turbidity, residual chlorine, dissolved oxygen and conductivity measurement with the sampling and cleaning each needs.
- 04System IntegrationPackaged treatment units, remote stations and existing SCADA brought into one supervisory layer.
- 05Turnkey ProjectsPlant and pump-station instrumentation and automation from survey and design through commissioning and training.
- 06AMC & Lifecycle SupportPreventive maintenance and analyzer calibration support for assets that run around the clock.
Typical applications
Arrangements where these capabilities commonly come together in water & wastewater plants.
All applications- Water Quality MonitoringpH, conductivity, dissolved oxygen, turbidity and chlorine with flow and level context.
- Tank Level & InventoryContinuous level, point level, temperature and pressure for storage and process tanks.
- PLC & SCADA MigrationBrownfield modernization of control systems with planned cut-over and minimal disruption.
Next steps
Where to go next
Technical guides that apply to water & wastewater requirements — then the conversation.
- 01Application guidesFlow Measurement Technology SelectionElectromagnetic, vortex, Coriolis, ultrasonic, DP and thermal mass — matched to the fluid.
- 02Application guidesLevel Measurement Methods for TanksHydrostatic, DP, radar, ultrasonic, guided-wave and point-level methods compared.
- 03IntegrationPLC–SCADA Integration ArchitectureLayers, protocols, tag design and network considerations for a maintainable system.
- 04ActionDiscuss a Water & Wastewater RequirementShare the process, the conditions and the existing control system.
Water & Wastewater enquiry
Planning a treatment plant, pump station or network upgrade?
Share the process stages, the sites involved and the existing control or telemetry system. An engineer can help translate it into a measurement and automation approach.