High performance in power generation by pressure-retarded osmosis (PRO) from hyper-salinity gradient: case study of hypersaline Lake of Urmia, Iran

2017 ◽  
Vol 71 ◽  
pp. 302-311 ◽  
Author(s):  
Hamidreza Sharifan ◽  
Henrik T. Madsen ◽  
Audra Morse
Keyword(s):  
Power Generation ◽  
High Performance ◽  
Salinity Gradient ◽  
Hypersaline Lake ◽  
Pressure Retarded Osmosis

High-Performance Ionic Diode Membrane for Salinity Gradient Power Generation

2014 ◽  
Vol 136 (35) ◽  
pp. 12265-12272 ◽  
Author(s):  
Jun Gao ◽  
Wei Guo ◽  
Dan Feng ◽  
Huanting Wang ◽  
Dongyuan Zhao ◽  
...  
Keyword(s):  
Power Generation ◽  
High Performance ◽  
Salinity Gradient ◽  
Salinity Gradient Power

Hybrid nanochannel membrane based on polymer/MOF for high-performance salinity gradient power generation

Nano Energy ◽  
2018 ◽  
Vol 53 ◽  
pp. 643-649 ◽  
Author(s):  
Ruirui Li ◽  
Jiaqiao Jiang ◽  
Qingqing Liu ◽  
Zhiqiang Xie ◽  
Jin Zhai
Keyword(s):  
Power Generation ◽  
High Performance ◽  
Salinity Gradient ◽  
Salinity Gradient Power

scholarly journals In Operando Study of High-Performance Thermoelectric Materials for Power Generation: A Case Study of β-Zn4sb3

2017 ◽  
Vol 3 (10) ◽  
pp. 1700223 ◽  
Author(s):  
Le Thanh Hung ◽  
Duc-The Ngo ◽  
Li Han ◽  
Bo Brummerstedt Iversen ◽  
Hao Yin ◽  
...  
Keyword(s):  
Power Generation ◽  
Thermoelectric Materials ◽  
High Performance ◽  
In Operando

scholarly journals Analysis of the Intake Locations of Salinity Gradient Plants Using Hydrodynamic and Membrane Models

Water ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1133
Author(s):  
Jacobo M. Salamanca ◽  
Oscar Álvarez-Silva ◽  
Aldemar Higgins ◽  
Fernando Tadeo
Keyword(s):  
Salinity Gradient ◽  
Water Discharge ◽  
River Mouth ◽  
Power Production ◽  
Discharge Data ◽  
Pressure Retarded Osmosis ◽  
Higher Power ◽  
Magdalena River ◽  
River Mouths

The gain in net power produced by Salinity Gradient plants in river mouths due to the optimal location of water intakes is analysed in this paper. More precisely, this work focuses on stratified river mouths and the membrane-based technology of Pressure-Retarded Osmosis. A methodology for this analysis is proposed and then applied to a case study in Colombia. Temperature, salinity and water discharge data were gathered at the Magdalena river mouth to develop a hydrodynamic model that represents the salinity profile along the river channel. The net power production of a pressure-retarded osmosis plant is then estimated based on the power produced at membrane level, considering different locations for the saltwater and freshwater intakes. The most adequate locations for the intakes are then deduced by balancing higher power production (due to higher salinity differences between the water intakes) with lower pumping costs (due to shorter pumping distances from the intakes). For the case study analysed, a gain of 14% can be achieved by carefully selecting the water intakes.

Power generation with salinity gradient by pressure retarded osmosis using concentrated brine from SWRO system and treated sewage as pure water

2012 ◽  
Vol 41 (1-3) ◽  
pp. 114-121 ◽  
Author(s):  
Keiichiro Saito ◽  
Morihiro Irie ◽  
Shintaro Zaitsu ◽  
Hideyuki Sakai ◽  
Hidechito Hayashi ◽  
...  
Keyword(s):  
Power Generation ◽  
Salinity Gradient ◽  
Pure Water ◽  
Pressure Retarded Osmosis ◽  
Treated Sewage

Demonstration of Power Generation from Fertilizer Solutions via Pressure-Retarded Osmosis

2021 ◽  
Vol 64 (2) ◽  
pp. 495-505
Author(s):  
Pouyan Pourmovahed ◽  
Jonathan Maisonneuve
Keyword(s):  
Power Generation ◽  
Energy Recovery ◽  
High Performance ◽  
Batch Process ◽  
Cellulose Triacetate ◽  
Mechanical Work ◽  
List Type ◽  
Membrane Area ◽  
Food Energy ◽  
Pressure Retarded Osmosis

HighlightsMechanical work can be generated from fertilizer via pressure-retarded osmosis.Laboratory tests show up to 5 Wh of energy recovered per kg of fertilizer.Tradeoffs between energy recovery and power generation are demonstrated.Maintaining power above 5 W m-2 is reasonable given current membrane technology.Abstract. Large amounts of energy are released when concentrated fertilizers are diluted in water. In this study, we demonstrate the use of fertilizer to generate useful mechanical work via pressure-retarded osmosis (PRO). A number of common single solutes and fertilizer blends were analyzed using both experimental and numerical methods. Laboratory test trials showed energy recovery of up to 5 Wh kg-1 of fertilizer and power of up 6 W m-2 of membrane area given commercial cellulose triacetate membranes. A drop in power was demonstrated throughout the fertilizer PRO batch process, and the resulting tradeoffs between energy recovery and power density are discussed. Simulation results suggest that high-performance membranes can be used to maintain elevated power above 5 W m-2 throughout the batch process, while recovering approximately 5 Wh kg-1. The loss of valuable fertilizer via leakage to the feed stream was found to be less than 1% of the initial fertilizer mass, suggesting that this non-ideal dynamic can be reasonably minimized. Implications at the food-energy-water nexus are discussed. Keywords: Fertilizer osmosis, Forward osmosis, Fertilizer energy, Food-energy-water nexus.

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