Nivelco Instruments for Wastewater Treatment

Wastewater Treatment Plant Instruments from Nivelco

 

 

Nivelco and Aqua Technology Group can provide all your instrumentation and control needs for collection systems, liftstations and pumps, package plants and wastewater treatment plant. This diagram of the wastewater treatment process details two separate sections: wastewater treatment processes and slurry treatment processes.

wastewater treatment plant instruments process diagram

COLLECTION SYSTEM / LIFTSTATIONS / SUMPS / PITS

The sewage is collected in lifstations, underground sumps or pits, also known as wetwells, and is pumped to the sewage treatment plant.

Measurement and control tasks:
Reliable level measurement is necessary to provide pump start and stop signals with fail safe switch-off points to avoid dry running.

RECOMMENDED INSTRUMENTS

The  EasyTREK SP type non-contact ultrasonic level transmitter models with IP68 ingress protection is Nivelco’s recommendation for this measurement task.

Another popular choice for liftstations or deep sumps is the flush mounted  NIVOPRESS NC  type
hydrostatic borehole transmitter or the NIVOPRESS NP  series with recessed membrane equipped with a sewage adaptor working on the principal of the diving bell.

Nivelco NIVOPRESS N NIVOPRESS D transmitter

A  PLC  or our  MultiCONT  process controller unit is ideal to process the analogue 4…20 mA signals and to control the switching points. For fail-safe protection, the robust NIVOFLOAT NWP float level switches are recommended.

Nivelco Nivofloat and Nivocont

WASTEWATER TREATMENT PLANT

The sewage pumped in from the network contains a lot of organic and non-organic materials in suspended form as well as in solution. This pollution has to be removed. The particles are filtered with a mechanical screen. The dissolved pollution can be reduced by adding coagulant materials. The reduced slurry is then separated from the water in the sedimentation tank.
The purified sewage can be streamed to any natural water after chemical inspection and yield measurement.

RECOMMENDED INSTRUMENTS

  • Ultrasonic level transmitters for level measurement (2-wire integrated  (blind) or compact versions), EchoTREK or EasyTREK
  • For the control of the mechanical screen a differential system with 2 ultrasonic level transmitters is recommended
  • The  AnaCONT  range of analytical measurement devices is ideal for the chemical analysis of the cleaned water
  • Open channel flow metering can be done using our  Parshall flume, and  EasyTREK level transmitter.
  • Nivelco EasyTREK Echo-TREK ultrasonic transducers
  • For the calculation and data logging a MULTICONT PEW controller can be used.
  • High and low level switching will be performedwith NIVOSWITCH vibrating fork sensors

 

WASTEWATER TREATMENT PLANT,SLURRY TREATMENT PROCESS

The slurry separated in the sedimentation tank istransferred to the digester tank. The emitted biogas is stored in a biogas tank and then fed to a biogas generator. The biogas section of the plant is classified as a hazardous environment. The slurry retained in the digester is transported from the plant after dewatering (dehydration)

RECOMMENDED INSTRUMENTS

  • ATEX certified ultrasonic level transmitters(EchoTREK  or  EasyTREK) or ATEX certified guided microwave level transmitter (Micro-TREK) can be used for level measurement.
  • Nivelco’s choice for measuring the temperature of biogas is the ATEX certified temperature transmitter THERMOCONT TTJ Ex.
  • Nivelco recommends an ATEX certified pressure transmitter for measuring the biogas pressure the NIVOPRESS DT Ex

Nivelco Water Wastewater Instrument Selection

Nivelco Field Instruments In Measurement Systems

 

Nivelco

Aqua Technology Group is proud to offer quality Nivelco process instruments.

NIVELCO Product MATRIX

LEVEL TRANSMITTERS
Non-contact MicrowavePiloTREK
Guided MicrowaveMicroTREK
Ultrasonic CompactEchoTREK for liquids
EchoTREK for solids
Ultrasonic IntegratedEasyTREK for liquids
EasyTREK for solids
CapacitiveNIVOCAP
MagnetostrictiveNIVOTRACK
Hydrostatic pressureNIVOPRESS D
NIVOPRESS N – borehole transmitter
LEVEL SWITCHES
FloatNIVOFLOAT
ConductiveNIVOCONT K
Magnetic CouplingNIVOMAG
Magnetic TrackingNIVOPOINT
VibratingNIVOCONT R – vibrating rod
NIVOSWITCH – vibrating fork
Rotary PaddleNIVOROTA
LIQUID ANALYSIS
pH and ORP transmittersAnaCONT LE
Conductivity transmitterAnaCONT LEK / LCK
DISPLAYS AND CONTROLLERS
Loop indicatorUNICONT PDF
Controller/IndicatorUNICONT PMM
UNICONT PMG
Controller / Programmer / IndicatorMULTICONT
PRESSURE
Pressure transmitterNIPRESS
Hydrostatic pressureNIVOPRESS D
TEMPERATURE
ThermometersTHERMOCONT TT
Temperature sensorTHERMOCONT TN
SENSORS AND ACCESSORIES
Current Controlled SwitchUNICONT PKK
Ultrasonic Proximity SensorMICROSONAR
AccesoryHART MODEM
Universal Interface ModuleUNICONT PJK-100
Power supplyNIPOWER
SOFTWARE
Process visualization softwareNIVISION
OLDER PRODUCTS
Ultrasonic Two-part SystemNIVOSONAR