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Reverse osmosis systems in water treatment

Membrane filtration in water treatment

Optimize membrane filtration control to ensure the highest standards in water quality

Membrane filtration is used in seawater desalination, water reuse and other modern water management processes. Different filtration methods are used depending on particle size and application requirements. The challenge when using pressure-driven methods is to control cleaning cycles better and avoid irreversible membrane blockage or damage. Endress+Hauser’s comprehensive range of sensors ensures water quality and maximizes plant availability.

  • 95

    million cubic meters

    of freshwater production per day by desalinating plants worldwide.
    Source: UN-backed paper from United Nations University, 2019

How we can help

Our portfolio optimizes the safety and reliability of membrane filtration in water treatment. Mechanical protection is monitored primarily by pressure and differential pressure. Accurate quality monitoring with analysis sensors at the inlet significantly reduces scaling and fouling.

Applications

Membrane filtration process

Membrane filtration removes bacteria, microorganisms, particulates, and natural organic material from water by forcing the water through a filter. The size of materials that can be removed during filtration depends upon the pore size of the filters. There are four types of membrane filters depending on the particle size.

  • Microfiltration

  • Nanofiltration

  • Ultrafiltration

  • Reverse osmosis

Membrane filtration process in a plant
Our expertise in the field

Endress+Hauser provides deep industry expertise and knowledge to offer suitable process instrumentation. Each membrane filter requires permanent monitoring of critical parameters to ensure water quality, safety & compliance

Pressure-driven filtration processes

In the pressure-driven processes of membrane filtration, the filters can be damaged by pressure peaks and wear out. Such spikes are difficult to predict; therefore, pressure devices must resist pressure overload and provide reliable measurements quickly and over the long term.

Optimal pressure measurement
Our expertise in the field

Endress+Hauser’s robust differential pressure devices help avoid filter damage by responding promptly to pressure overloads. Pressure peaks can be predicted using innovative sensor technology. The need for filter maintenance is indicated reliably.

Inlet quality monitoring

Controlling inlet quality minimizes biofouling and scaling, optimizes cleaning cycles and thus ensures longer membrane lifetime. Different parameters are used to manage the inlet quality of reverse osmosis: pH, turbidity, chlorine, SAC, conductivity, and ORP measurement. Requirements for quality inlet sensors are reliability, stability, low maintenance, easy calibration and documentation.

Water quality monitoring via panels
Our expertise in the field

The relevant process sensors with Memosens technology are installed on analytical panels, which can be customized according to the application requirements. Convince yourself and take a look at our drinking water quality monitoring systems

The process of membrane filtration at a glance

Overview of the membrane filtration process ©Endress+Hauser

Reliable membrane filtration control requires monitoring of numerous measuring points in the process

Benefits

Endress+Hauser simplifies even complicated applications with various measuring parameters thanks to our broad portfolio and innovative technologies like Memosens that enable you to take the first step towards a digital future. This way, we can not only help you ensure the availability and quality of your membrane filtration water treatment but also help you to reduce maintenance and calibration costs.

  • >90%

    pathogens

    can be removed from water with membrane filtration

  • ~20%

    fewer cleaning additives

    used for membrane cleaning cycles

  • 40%

    longer lifetime

    of analytical sensors with Memosens technology

Success stories

  • Simple products

  • Easy to select, install and operate

Technical excellence

Simplicity

  • Standard products

  • Reliable, robust and low-maintenance

Technical excellence

Simplicity

  • High-end products

  • Highly functional and convenient

Technical excellence

Simplicity

  • Specialized products

  • Designed for demanding applications

Technical excellence

Simplicity

Variable

FLEX selections Technical excellence Simplicity
  • F
  • L
  • E
  • X

Fundamental selection

Meet your basic measurement needs

Technical excellence
Simplicity
  • F
  • L
  • E
  • X

Lean selection

Handle your core processes easily

Technical excellence
Simplicity
  • F
  • L
  • E
  • X

Extended selection

Optimize your processes with innovative technologies

Technical excellence
Simplicity
  • F
  • L
  • E
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Xpert selection

Master your most challenging applications

Technical excellence
Simplicity

Variable

Browse through our portfolio!

  • Analytics - We help you to improve quality while reducing operational costs

    Analysis

    Analysis

    Water, beverages, dairy products, chemicals or pharmaceuticals have to be analyzed every day. Choose the device best suited to your process needs from our comprehensive product portfolio.

  • Flow measurement

    Flowmeter

    Flowmeter

    Water, natural gas, steam, mineral oil, chemicals are some of the fluids that have to be measured day in, day out. Select the flowmeter best suited to your process needs.

  • Field of Applications Level

    Level

    Level

    Continuous level measurement and point level detection in liquids and bulk solids

  • Field of Application Pressure

    Pressure

    Pressure

    Powerful instruments for process pressure, differential pressure, level and flow.

  • Endress+Hauser offer appropriate software solutions for all branches of industry.

    Software

    Software

    Apart from all relevant measuring and system technologies, we also offer appropriate software for all branches of industry that provide to run your operating processes at its full potential.

  • System products and Data Managers

    System products

    System products

    Applicator

  • Key visual temperature

    Temperature measurement

    Temperature measurement

    Thermometers and transmitters for the process industry

  • Service portfolio

    Instrumentation services

    Instrumentation services

    Maximize plant performance, minimize OPEX, increase uptime, all with compliance. Partner with Endress+Hauser instrumentation services.

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