TY - GEN
T1 - Hydraulic Energy Generation for RO (Reverse Osmosis) from PRO (Pressure Retarded Osmosis)
AU - Tshuma, Ivonne
AU - Cord-Ruwisch, Ralf
AU - Ela, Wendell
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/3
Y1 - 2020/3
N2 - Although reverse osmosis (RO) is currently the most energy efficient, widely used, desalination technology, it still requires a great deal of energy to create the high pressure necessary to overcome the osmotic pressure of seawater. Pressure retarded osmosis (PRO), on the other hand, utilizes the salinity gradient between two solutions of different salt content to produce pressure, which can subsequently be used to generate electrical energy. The intended outcome of this study is a PRO-RO desalination system, where the PRO unit is directly hydraulically linked to a RO unit such that the pressure produced by PRO is transferred to RO to produce permeate. By utilizing the pressure produced in PRO to power RO, external energy inputs can be substituted. This is particularly significant in remote, off-grid, decentralized locations that have limited access to fresh water. The main objective of this paper is to introduce a RO driven by PRO technology and present ongoing work on a PRO stand-alone process.
AB - Although reverse osmosis (RO) is currently the most energy efficient, widely used, desalination technology, it still requires a great deal of energy to create the high pressure necessary to overcome the osmotic pressure of seawater. Pressure retarded osmosis (PRO), on the other hand, utilizes the salinity gradient between two solutions of different salt content to produce pressure, which can subsequently be used to generate electrical energy. The intended outcome of this study is a PRO-RO desalination system, where the PRO unit is directly hydraulically linked to a RO unit such that the pressure produced by PRO is transferred to RO to produce permeate. By utilizing the pressure produced in PRO to power RO, external energy inputs can be substituted. This is particularly significant in remote, off-grid, decentralized locations that have limited access to fresh water. The main objective of this paper is to introduce a RO driven by PRO technology and present ongoing work on a PRO stand-alone process.
KW - Component
KW - Concentration polarisation
KW - Power density
KW - Pressure retarded osmosis
KW - Reverse osmosis
KW - Water flux
UR - http://www.scopus.com/inward/record.url?scp=85084954843&partnerID=8YFLogxK
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U2 - 10.1109/ICGEA49367.2020.239707
DO - 10.1109/ICGEA49367.2020.239707
M3 - Conference contribution
AN - SCOPUS:85084954843
T3 - Proceedings of 2020 4th International Conference on Green Energy and Applications, ICGEA 2020
SP - 139
EP - 142
BT - Proceedings of 2020 4th International Conference on Green Energy and Applications, ICGEA 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th International Conference on Green Energy and Applications, ICGEA 2020
Y2 - 7 March 2020 through 9 March 2020
ER -