Description

Presure measurement of feed

Requirements

  • High pressure
  • Process control

Description

Quality measurement of feed

Requirements

  • High pressure
  • Process control

Description

Temperature measurement of feed

Requirements

  • High pressure
  • Process control

Description

Quality measurement of feed

Requirements

  • High pressure
  • Process control

Description

Flow measurement of feed

Requirements

  • High pressure
  • Process control

Description

Flow measurement of antiscalant

Requirements

  • High pressure
  • Process control

Description

Quality measurement of feed

Requirements

  • High pressure
  • Process control

Description

Quality measurement of feed

Requirements

  • High pressure
  • Process control

Description

Flow measurement of concentrate

Requirements

  • Process control
  • Corrosive media

Description

Pressure measurement of concentrate

Requirements

  • Process control

Description

Quality measurement of concentrate

Requirements

  • Process control

Description

Quality measurement of permeate

Requirements

  • Process control

Description

Quality measurement of permeate

Requirements

  • Process control

Description

Pressure measurement of permeate

Requirements

  • Process control

Description

Flow measurement of permeate

Requirements

  • Low conductivity

Overview

Reverse osmosis for brackish water desalination in desalination

Instruments for corrosive applications

Reverse osmosis is a water purification technology that uses semipermeable membranes which cannot be penetrated by larger molecules. Sea water reverse osmosis works at pressures of up to 70 to 80 bar and is one of the main technologies used for sea water desalination. Flows, pressures and analytical values need to be measured in order to monitor and control the operation of the membrane modules within their design limits - this is essential for a long service life. The following water treatment steps use RO-modules that generally require lower pump pressures because of the lower concentrations of salt in brackish water.

KROHNE supplies a full range of OPTIFLUX electromagnetic flowmeters for high pressures, OPTISONIC UFM ultrasonic flowmeters for low conductivity permeate flows and the other instruments required for control of the entire process.

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