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New Criteria for Brine Discharge Outfalls from Desalination Plants

Bashitialshaaer, Raed LU ; Persson, Kenneth M LU and Larson, Magnus LU (2015) In Intakes and Outfalls for Seawater Reverse-Osmosis Desalination Facilities p.451-467
Abstract
An efficient method for increasing the dilution rate of brine water discharged into the sea is an inclined negatively buoyant jet from a single port or a multi-diffuser system. Such jets typically arise when brine is discharged from desalination plants. Two small-scale experimental studies were conducted to investigate the behaviour of a dense jet discharged into lighter ambient water.
The first experiment concerned the importance of the initial angle of inclined dense jets, where the slope of the flow increased for the maximum levels as a function of this angle. An angle of 60° produced better results than 30° or 45°. An empirical predictive equation was developed based on five geometric quantities to be considered in the design of... (More)
An efficient method for increasing the dilution rate of brine water discharged into the sea is an inclined negatively buoyant jet from a single port or a multi-diffuser system. Such jets typically arise when brine is discharged from desalination plants. Two small-scale experimental studies were conducted to investigate the behaviour of a dense jet discharged into lighter ambient water.
The first experiment concerned the importance of the initial angle of inclined dense jets, where the slope of the flow increased for the maximum levels as a function of this angle. An angle of 60° produced better results than 30° or 45°. An empirical predictive equation was developed based on five geometric quantities to be considered in the design of plants.
The second experiment studied the near and intermediate fields of negatively buoyant jets. Dilution in the flow direction was increased by about 10 % and 40 % with bottom slope, and bottom slope together with a 30° jet inclination, respectively. An over 16 % bottom slope experiment and more field work in the future are needed to compare with this result. It was found that an inclination of 30° with a 16 % bottom slope were optimal for the design of brine discharge outfall. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Desalination, Water resources, Brine discharge
categories
Higher Education
Popular Science
in
Intakes and Outfalls for Seawater Reverse-Osmosis Desalination Facilities
editor
Missimer, Thomas; Jones, Burton and Maliva, Robert
pages
17 pages
publisher
Springer
external identifiers
  • Scopus:84945972782
ISBN
978-3-319-13202-0
language
English
LU publication?
yes
id
8ce9a96b-89d6-4e07-885c-f4a940dd0914 (old id 4940200)
date added to LUP
2015-01-23 11:34:26
date last changed
2017-01-01 07:56:06
@inbook{8ce9a96b-89d6-4e07-885c-f4a940dd0914,
  abstract     = {An efficient method for increasing the dilution rate of brine water discharged into the sea is an inclined negatively buoyant jet from a single port or a multi-diffuser system. Such jets typically arise when brine is discharged from desalination plants. Two small-scale experimental studies were conducted to investigate the behaviour of a dense jet discharged into lighter ambient water. <br/>The first experiment concerned the importance of the initial angle of inclined dense jets, where the slope of the flow increased for the maximum levels as a function of this angle. An angle of 60° produced better results than 30° or 45°. An empirical predictive equation was developed based on five geometric quantities to be considered in the design of plants.<br/>The second experiment studied the near and intermediate fields of negatively buoyant jets. Dilution in the flow direction was increased by about 10 % and 40 % with bottom slope, and bottom slope together with a 30° jet inclination, respectively. An over 16 % bottom slope experiment and more field work in the future are needed to compare with this result. It was found that an inclination of 30° with a 16 % bottom slope were optimal for the design of brine discharge outfall.},
  author       = {Bashitialshaaer, Raed and Persson, Kenneth M and Larson, Magnus},
  editor       = {Missimer, Thomas and Jones, Burton and Maliva, Robert},
  isbn         = {978-3-319-13202-0},
  keyword      = {Desalination,Water resources,Brine discharge},
  language     = {eng},
  pages        = {451--467},
  publisher    = {Springer},
  series       = {Intakes and Outfalls for Seawater Reverse-Osmosis Desalination Facilities},
  title        = {New Criteria for Brine Discharge Outfalls from Desalination Plants},
  year         = {2015},
}