Recent Developments in Forward Osmosis Processes

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Publication Date: 15/05/2017

Pages: 404

Binding: Paperback

ISBN13: 9781780408118

eISBN: 9781780408125

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Forward osmosis (FO) is an emerging membrane technology with a range of possible water treatment applications (desalination and wastewater treatment and recovery).

Recent Developments in Forward Osmosis Processes provides an overview of applications, advantages, challenges, costs and current knowledge gaps. Commercial technology, hybrid FO systems for both desalination and water recovery applications have shown to have higher capital cost compared to conventional technologies. Nevertheless, due to the demonstrated lower operational costs of hybrid FO systems, the unit cost for each m3 of fresh water produced with the FO system are lower than conventional desalination/water recovery technologies (i.e. ultrafiltration/RO systems).

There are key benefits of using FO hybrid systems compared to RO:

  • chemical storage  and feed systems may be reduced for capital, operational and maintenance cost savings,
  • reduced process piping costs,
  • more flexible treatment units,
  • higher overall sustainability of the desalination process, while producing high quality water.

Contents

Introduction; Water Recovery; The Management of Urban Runoff in Coastal Regions; Water Harvesting from Municipal Wastewater; Indirect Desalination of Seawater; Fouling; Fouling Propensity During Desalination of Seawater; NOM And TEP Fouling; Draw Solute Induced Calcium Carbonate Scaling; Impact of Spacer on Biofouling; Cleaning Protocol in Wastewater Reuse; Rejection of Pollutants;  Rejection of Micropollutants;  Rejection of Boron; Membranes and Draw Solution; Draw Solutions; High Performance Forward Osmosis Membrane; Modelling; Modeling Water Flux;  Modeling Concentration Polarization and Spacer Influence; Outlook; Life Cycle Cost Assessment; Niches in Seawater Desalination and Wastewater Reuse

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