Case study: Oasys water-forward osmosis

Rodrigo Valladares Linares, Lijo Francis

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)


Oasys Water developed the first membrane brine concentrator (MBC) employing ammonia and carbon dioxide-based draw solution to treat high salinity brine streams and wastewater, using a forward osmosis (FO) process, producing a high quality permeate water that can be reused in any industrial process. According to Oasys Water, they are the only FO provider that develops all three key components of its systems: optimized and patented FO membranes, powerful draw solution chemistries, and highly efficient draw solution recovery systems. In the last few years, Oasys Water has been testing pilot units in three different facilities, with promising results in the treatment of industrial wastewater, which validate the viability of the product: i) Pennsylvania based Marcellus Shale plant, used to treat highly variable water, product of large volumes of frac flowback and water with high concentrations of total dissolved solids (TDS) from natural gas extraction, ii) the testing facility in Permian Basin at Midland, Texas, testing high TDS water from oil and gas operations, and iii)Changxing Power Plant pilot unit, the world’s first commercial application of FO-based zero liquid discharge (ZLD). Several advantages of the use of Oasys Water FO technology have been demonstrated, such as the ability to concentrate brines up to a high TDS concentration for further processing in a crystallizer, lower capital costs compared to evaporative ZLD technologies, reduced energy requirements and the elimination of thermal scaling concerns.

Original languageEnglish
Title of host publicationMembrane-Based Salinity Gradient Processes for Water Treatment and Power Generation
Number of pages11
ISBN (Electronic)9780444639615
ISBN (Print)9780444639622
Publication statusPublished - 1 Jan 2018



  • Desalination
  • Forward osmosis
  • Membrane brine concentrator
  • Zero liquid discharge

ASJC Scopus subject areas

  • Engineering(all)
  • Chemical Engineering(all)

Cite this

Linares, R. V., & Francis, L. (2018). Case study: Oasys water-forward osmosis. In Membrane-Based Salinity Gradient Processes for Water Treatment and Power Generation (pp. 335-345). Elsevier.