Influence of multivalent ions on power production from mixing salt and fresh water with a reverse electrodialysis system

2009 ◽  
Vol 330 (1-2) ◽  
pp. 65-72 ◽  
Author(s):  
Jan W. Post ◽  
Hubertus V.M. Hamelers ◽  
Cees J.N. Buisman
Keyword(s):  
Fresh Water ◽  
Power Production ◽  
Reverse Electrodialysis ◽  
Multivalent Ions

Minimal RED Cell Pairs Markedly Improve Electrode Kinetics and Power Production in Microbial Reverse Electrodialysis Cells

2013 ◽  
Vol 47 (24) ◽  
pp. 14518-14524 ◽  
Author(s):  
Roland D. Cusick ◽  
Marta Hatzell ◽  
Fang Zhang ◽  
Bruce E. Logan
Keyword(s):  
Power Production ◽  
Electrode Kinetics ◽  
Red Cell ◽  
Reverse Electrodialysis

scholarly journals Sea Transport of Fresh Water

2021 ◽  
Vol 2096 (1) ◽  
pp. 012167
Author(s):  
V V Loshchenkov ◽  
V V Knyazhev
Keyword(s):  
Fresh Water ◽  
Power Plants ◽  
Sea Transport ◽  
Reverse Electrodialysis ◽  
And Control ◽  
Surrounding Seawater

Abstract A modular automatic sea transport for the delivery of clean drinking fresh water has been proposed. Transport can be in underwater and surface versions. The transported fresh water and the surrounding seawater can be used as a source of energy for the movement and control of vehicles. Power plants based on osmosis or reverse electrodialysis are considered, as well as their possible joint use of plants of both types.

scholarly journals Effect of Seawater/Fresh Water Flow Rates on Power Density of Reverse Electrodialysis

2014 ◽  
Vol 36 (9) ◽  
pp. 624-628
Author(s):  
Jong-Chan Na ◽  
Han-Ki Kim ◽  
Chan-Soo Kim ◽  
Moon-Hee Han
Keyword(s):  
Power Density ◽  
Fresh Water ◽  
Water Flow ◽  
Flow Rates ◽  
Reverse Electrodialysis

scholarly journals Design of Monovalent Ion Selective Membranes for Reducing the Impacts of Multivalent Ions in Reverse Electrodialysis

Membranes ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 7 ◽  
Author(s):  
Abreham Tesfaye Besha ◽  
Misgina Tilahun Tsehaye ◽  
David Aili ◽  
Wenjuan Zhang ◽  
Ramato Ashu Tufa
Keyword(s):  
Negative Impact ◽  
Salinity Gradient ◽  
Open Circuit ◽  
Anion Exchange Membranes ◽  
Promising Alternative ◽  
Reverse Electrodialysis ◽  
Multivalent Ions ◽  
Monovalent Ion ◽  
The Impact ◽  
Selective Membranes

Reverse electrodialysis (RED) represents one of the most promising membrane-based technologies for clean and renewable energy production from mixing water solutions. However, the presence of multivalent ions in natural water drastically reduces system performance, in particular, the open-circuit voltage (OCV) and the output power. This effect is largely described by the “uphill transport” phenomenon, in which multivalent ions are transported against the concentration gradient. In this work, recent advances in the investigation of the impact of multivalent ions on power generation by RED are systematically reviewed along with possible strategies to overcome this challenge. In particular, the use of monovalent ion-selective membranes represents a promising alternative to reduce the negative impact of multivalent ions given the availability of low-cost materials and an easy route of membrane synthesis. A thorough assessment of the materials and methodologies used to prepare monovalent selective ion exchange membranes (both cation and anion exchange membranes) for applications in (reverse) electrodialysis is performed. Moreover, transport mechanisms under conditions of extreme salinity gradient are analyzed and compared for a better understanding of the design criteria. The ultimate goal of the present work is to propose a prospective research direction on the development of new membrane materials for effective implementation of RED under natural feed conditions.

Experimental Study on Energy Harvesting From Salinity Gradient by Reverse Electrodialysis in Ag/AgCl Deposited AAO Nanochannel Array

2013 ◽  
Author(s):  
Byeongdong Kang ◽  
Moojoong Kim ◽  
Hyungmin Joo ◽  
Hyun Jung Kim ◽  
Dong-Kwon Kim
Keyword(s):  
Electric Current ◽  
Fresh Water ◽  
Sea Water ◽  
Silver Chloride ◽  
Salinity Gradient ◽  
Rear Surface ◽  
Chemical Oxidation ◽  
Silver Layer ◽  
Reverse Electrodialysis ◽  
Nanochannel Array

Reverse electrodialysis (RED) is energy conversion phenomena which generates electricity from concentration gradient energy by mixing the ions in sea water with fresh water through ion-selective nanochannel. When nanochannels are filled with an aqueous solution, the surface of nanochannels is charged by ionization, ion adsorption, and ion dissolution. Therefore, co-ions are repelled from the nanochannels and only counter-ions can be transported through the nanochannels. As a result, the electric current can be generated by selective ion transport through the nanochannels from sea water to fresh water. Recently, solid-state nanochannels or nanopores have received attention because they have potential to replace polymer ion-selective membranes. Especially, anodic aluminum oxide (AAO) nanochannel array has advantage of easiness of pore size control and high pore density. In the present study, to collect electric current generated by the nanochannels, we deposited the porous silver layer on both front and rear surface of the AAO nanochannel array by using e-beam evaporation and changed the silver layer to the silver/silver chloride layer by chemical oxidation with aqueous FeCl3. Finally, we conduct an experimental investigation for the power generation from the AAO nanochannel arrays placed between two potassium chloride solutions with various combinations of concentrations.

Performance of the first reverse electrodialysis pilot plant for power production from saline waters and concentrated brines

2016 ◽  
Vol 500 ◽  
pp. 33-45 ◽  
Author(s):  
Michele Tedesco ◽  
Claudio Scalici ◽  
Davide Vaccari ◽  
Andrea Cipollina ◽  
Alessandro Tamburini ◽  
...  
Keyword(s):  
Pilot Plant ◽  
Power Production ◽  
Reverse Electrodialysis ◽  
Saline Waters

Simulation and Characterization of a Hybrid Concentrated Solar Tower System for Co-Generation of Power and Fresh Water

2017 ◽  
Author(s):  
Kasra Mohammadi ◽  
Jon G. McGowan
Keyword(s):  
Power Consumption ◽  
Fresh Water ◽  
Cooling System ◽  
Rankine Cycle ◽  
Power Production ◽  
Hybrid Plant ◽  
Specific Power ◽  
Water Production ◽  
Specific Power Consumption ◽  
Power Block

The goal of this study is to evaluate and compare the thermodynamic performance of three feasible hybrid solar power tower-desalination plants for co-generation of power and fresh water. In these hybrid configurations, either multi effect desalination (MED) or thermal vapor compression (TVC)-MED unit is integrated to the Rankine cycle power block. The particular focus is on comparison between single plant and hybrid plants in terms of energy efficiency and penalty in power production to determine the more efficient configuration. The achieved results showed that integration of MED unit to the power cycle is thermodynamically more efficient, due to less reduction in power production and efficiency than the TVC-MED configurations. Also, for hybrid solar tower-MED plat, the average penalty in power production was between 9.27% and 12.88% when fresh production increased from 10000 m3/day to 31,665 m3/day. Another important finding showed the specific power consumption (specific power penalty) of the hybrid plant decreases with increasing the fresh water production. Especially at higher fresh water production, this specific power consumption was competitive to other desalination technologies such as reverse osmosis. The proposed hybrid solar tower-MED plant offers different benefits such as possibility of eliminating the cooling system requirement of the cycle as it can be replaced by the MED unit.

scholarly journals A unique permeate gap membrane distillation system for combined fresh water and power production

2019 ◽  
Vol 160 ◽  
pp. 170-177 ◽  
Author(s):  
Farzaneh Mahmoudi ◽  
Mohammad E. Pishbin ◽  
Abhijit Date ◽  
Aliakbar Akbarzadeh
Keyword(s):  
Fresh Water ◽  
Power Production ◽  
Membrane Distillation ◽  
Distillation System
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