Supercritical water desalination (SCWD): process development, design and pilot plant validation

Samuel Obarinu Odu

Research output: ThesisPhD Thesis - Research UT, graduation UTAcademic

216 Downloads (Pure)

Abstract

Conventional desalination technologies such as reverse osmosis (RO), multi-stage flash distillation (MSF) and electro dialysis (ED) have a major drawback; the production of a liquid waste stream with an increased salinity (compared to the feed) that has to be disposed of. The treatment of this waste stream has always presented technical, economic and environmental challenges. With stricter environmental regulations regarding brine disposal into water bodies, the treatment or disposal of this waste stream pose a huge challenge for the sustainability of desalination methods. Currently, research studies are being conducted to develop zero liquid discharge (ZLD) technologies for desalination. Supercritical water desalination (SCWD) is a new desalination method that allows for the treatment of salt water streams with ZLD. The work presented in this thesis focuses on the process development (conceptual design of the process, lab-scale demonstration of the proof-of-concept, and selection of process operating pressure and temperature), design and construction of a pilot SCWD unit, and the first results from this pilot plant. Essential insights into the heat transport mechanism (essential for heat integration) of SCW flow at low mass fluxes encountered in such pilot unit are provided. With the pilot plant demonstration of the SCWD process introduced in this thesis, a new approach to tackle desalination in a sustainable way with Zero Liquid Discharge is provided.
Original languageEnglish
Awarding Institution
  • University of Twente
Supervisors/Advisors
  • Kersten, Sascha R.A., Supervisor
  • van der Ham, Aloysius G.J., Co-Supervisor
Award date14 Dec 2017
Place of PublicationEnschede
Publisher
Print ISBNs978-90-365-4438-2
DOIs
Publication statusPublished - 14 Dec 2017

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desalination
liquid
salt water
distillation
brine
water desalination
pilot plant
sustainability
salinity
economics
temperature
thesis
method

Cite this

Odu, Samuel Obarinu. / Supercritical water desalination (SCWD) : process development, design and pilot plant validation. Enschede : University of Twente, 2017. 178 p.
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abstract = "Conventional desalination technologies such as reverse osmosis (RO), multi-stage flash distillation (MSF) and electro dialysis (ED) have a major drawback; the production of a liquid waste stream with an increased salinity (compared to the feed) that has to be disposed of. The treatment of this waste stream has always presented technical, economic and environmental challenges. With stricter environmental regulations regarding brine disposal into water bodies, the treatment or disposal of this waste stream pose a huge challenge for the sustainability of desalination methods. Currently, research studies are being conducted to develop zero liquid discharge (ZLD) technologies for desalination. Supercritical water desalination (SCWD) is a new desalination method that allows for the treatment of salt water streams with ZLD. The work presented in this thesis focuses on the process development (conceptual design of the process, lab-scale demonstration of the proof-of-concept, and selection of process operating pressure and temperature), design and construction of a pilot SCWD unit, and the first results from this pilot plant. Essential insights into the heat transport mechanism (essential for heat integration) of SCW flow at low mass fluxes encountered in such pilot unit are provided. With the pilot plant demonstration of the SCWD process introduced in this thesis, a new approach to tackle desalination in a sustainable way with Zero Liquid Discharge is provided.",
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Supercritical water desalination (SCWD) : process development, design and pilot plant validation. / Odu, Samuel Obarinu.

Enschede : University of Twente, 2017. 178 p.

Research output: ThesisPhD Thesis - Research UT, graduation UTAcademic

TY - THES

T1 - Supercritical water desalination (SCWD)

T2 - process development, design and pilot plant validation

AU - Odu, Samuel Obarinu

PY - 2017/12/14

Y1 - 2017/12/14

N2 - Conventional desalination technologies such as reverse osmosis (RO), multi-stage flash distillation (MSF) and electro dialysis (ED) have a major drawback; the production of a liquid waste stream with an increased salinity (compared to the feed) that has to be disposed of. The treatment of this waste stream has always presented technical, economic and environmental challenges. With stricter environmental regulations regarding brine disposal into water bodies, the treatment or disposal of this waste stream pose a huge challenge for the sustainability of desalination methods. Currently, research studies are being conducted to develop zero liquid discharge (ZLD) technologies for desalination. Supercritical water desalination (SCWD) is a new desalination method that allows for the treatment of salt water streams with ZLD. The work presented in this thesis focuses on the process development (conceptual design of the process, lab-scale demonstration of the proof-of-concept, and selection of process operating pressure and temperature), design and construction of a pilot SCWD unit, and the first results from this pilot plant. Essential insights into the heat transport mechanism (essential for heat integration) of SCW flow at low mass fluxes encountered in such pilot unit are provided. With the pilot plant demonstration of the SCWD process introduced in this thesis, a new approach to tackle desalination in a sustainable way with Zero Liquid Discharge is provided.

AB - Conventional desalination technologies such as reverse osmosis (RO), multi-stage flash distillation (MSF) and electro dialysis (ED) have a major drawback; the production of a liquid waste stream with an increased salinity (compared to the feed) that has to be disposed of. The treatment of this waste stream has always presented technical, economic and environmental challenges. With stricter environmental regulations regarding brine disposal into water bodies, the treatment or disposal of this waste stream pose a huge challenge for the sustainability of desalination methods. Currently, research studies are being conducted to develop zero liquid discharge (ZLD) technologies for desalination. Supercritical water desalination (SCWD) is a new desalination method that allows for the treatment of salt water streams with ZLD. The work presented in this thesis focuses on the process development (conceptual design of the process, lab-scale demonstration of the proof-of-concept, and selection of process operating pressure and temperature), design and construction of a pilot SCWD unit, and the first results from this pilot plant. Essential insights into the heat transport mechanism (essential for heat integration) of SCW flow at low mass fluxes encountered in such pilot unit are provided. With the pilot plant demonstration of the SCWD process introduced in this thesis, a new approach to tackle desalination in a sustainable way with Zero Liquid Discharge is provided.

U2 - 10.3990/1.9789036544382

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M3 - PhD Thesis - Research UT, graduation UT

SN - 978-90-365-4438-2

PB - University of Twente

CY - Enschede

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