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Design methodology for forward osmosis system.

Dhaval Patel1, Dipak Ankoliya2, Milan Raninga2

  • 1Mechanical Engineering Department, School of Technology, Pandit Deendayal Energy University, Gandhinagar, 382426, India. dhaval.20patel@gmail.com.

Environmental Science and Pollution Research International
|June 2, 2025
PubMed
Summary
This summary is machine-generated.

Forward osmosis (FO) offers a solution to water scarcity. This study presents a design methodology to overcome challenges and accelerate the commercial application of FO systems for water and wastewater treatment.

Keywords:
Draw solutionFeed solutionForward osmosisWastewater treatmentWater treatment

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Area of Science:

  • Environmental Engineering
  • Chemical Engineering
  • Water Treatment Technologies

Background:

  • Forward osmosis (FO) is a promising technology for water and wastewater treatment, crucial for addressing global water scarcity.
  • Current commercial adoption of FO is hindered by issues such as low water flux, concentration polarization, draw solution management, and membrane fouling.

Purpose of the Study:

  • To develop a comprehensive design methodology for Forward Osmosis (FO) systems tailored for water and wastewater treatment applications.
  • To address and propose solutions for key challenges limiting the widespread implementation of FO technology.

Main Methods:

  • The study outlines a systematic design methodology encompassing process design, draw/feed solution selection, membrane choice, operational modes, and system parameters (pump, flow rate).
  • It also focuses on strategies to mitigate common FO operational problems including membrane fouling, concentration polarization, and low water flux/recovery.

Main Results:

  • A functional design methodology is proposed to facilitate the scale-up of FO systems from pilot to commercial levels.
  • The methodology aims to improve water flux, manage concentration polarization, reduce fouling, and enhance overall system recovery.

Conclusions:

  • Implementing the proposed design methodology is expected to accelerate the adoption of large-scale FO systems for water and wastewater treatment.
  • This approach provides a roadmap for overcoming existing barriers and realizing the full potential of FO technology in addressing water challenges.