scholarly journals Physicochemical and Colligative Investigation of α (Shrimp Shell)- and β (Squid Pen)-Chitosan Membranes: Concentration-Gradient-Driven Water Flux and Ion Transport for Salinity Gradient Power and Separation Process Operations

ACS Omega ◽  
2019 ◽  
Vol 4 (25) ◽  
pp. 21027-21040 ◽  
Author(s):  
Clifford R. Merz
Keyword(s):  
Ion Transport ◽  
Concentration Gradient ◽  
Salinity Gradient ◽  
Water Flux ◽  
Separation Process ◽  
Shrimp Shell ◽  
Chitosan Membranes ◽  
Process Operations ◽  
Salinity Gradient Power

Space Charge Enhanced Ion Transport in Heterogeneous Polyelectrolyte/Alumina Nanochannel Membranes for High-Performance Osmotic Energy Conversion

2021 ◽  
Author(s):  
Chen-Wei Chang ◽  
Chien-Wei Chu ◽  
Yen-Shao Su ◽  
Li-Hsien Yeh
Keyword(s):  
Ion Transport ◽  
Space Charge ◽  
Energy Conversion ◽  
High Performance ◽  
Salinity Gradient ◽  
Clean Energy ◽  
Energy Resources ◽  
Global Energy ◽  
Energy Demands ◽  
Selective Membrane

Capturing osmotic energy from a salinity gradient through an ion-selective membrane is regarded as one of the renewable clean energy resources to solve the increasing global energy demands. However, suffering...

The Optimization of RHS-polysulfone Membrane towards Operating Condition for Humic Acid Removal

2021 ◽  
Vol 02 (01) ◽  
Author(s):  
Mohd Riduan Jamalludin ◽  
◽  
Siti Khadijah Hubadillah ◽  
Zawati Harun ◽  
Muhamad Zaini Yunos ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Ionic Strength ◽  
Membrane Separation ◽  
Pure Water ◽  
Water Flux ◽  
Separation Process ◽  
Transmembrane Pressure ◽  
Polysulfone Membrane ◽  
Optimal Value ◽  
Pure Water Flux

This study investigates the effects of rice husk silica (RHS) as additive in the polysulfone membrane to enhance antifouling properties in membrane separation process. The performance (of what?) was evaluated in term of pure water flux (PWF), rejection and antifouling properties. The optimized of normalized flux (Jf /Jo) at different parameter in filtration (pH, ionic strength and tranmembrane-pressure) was carried out by using the response surface methodology (RSM). The results showed that the addition of 4 wt. % RHS give the highest flux at 300.50 L/m².hour (LMH). The highest rejection was found at 3 wt. % of RHS membrane with value 98% for UV254 and 96% for TOC. The optimal value of Jf/Jo was found at 0.62 with the condition of pH: 6.10, ionic strength: 0.05 mol/L and transmembrane-pressure: 2.67 bars. Optimize of RSM analysis from ANOVA also proved that the error of model is less than 0.05% which indicates that the model is significant.

Comparative performance of Salinity Gradient Power-Reverse Electrodialysis under different operating conditions

Desalination ◽  
2019 ◽  
Vol 457 ◽  
pp. 8-21 ◽  
Author(s):  
Rafael Ortiz-Imedio ◽  
Lucia Gomez-Coma ◽  
Marcos Fallanza ◽  
Alfredo Ortiz ◽  
Raquel Ibañez ◽  
...  
Keyword(s):  
Salinity Gradient ◽  
Operating Conditions ◽  
Comparative Performance ◽  
Reverse Electrodialysis ◽  
Salinity Gradient Power

scholarly journals Thermodynamic analysis of brine management methods: Zero-discharge desalination and salinity-gradient power production

Desalination ◽  
2017 ◽  
Vol 404 ◽  
pp. 291-303 ◽  
Author(s):  
Hyung Won Chung ◽  
Kishor G. Nayar ◽  
Jaichander Swaminathan ◽  
Karim M. Chehayeb ◽  
John H. Lienhard V
Keyword(s):  
Thermodynamic Analysis ◽  
Salinity Gradient ◽  
Power Production ◽  
Brine Management ◽  
Zero Discharge ◽  
Salinity Gradient Power
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