Ion Distribution in Saltwater under High-Voltage Static Electric Field

2011 ◽  
Vol 361-363 ◽  
pp. 865-869 ◽  
Author(s):  
Liang Gu ◽  
Xin Gang Chen ◽  
Xiao Dong Liu ◽  
Wei Liu
Keyword(s):  
Electric Field ◽  
High Voltage ◽  
Separation Efficiency ◽  
Water Shortage ◽  
Seawater Desalination ◽  
Static Electric Field ◽  
Ion Distribution ◽  
Dissolved Ions ◽  
Water Pipeline ◽  
Desalination Technology

The world is facing a severe crisis of fresh water shortage. Seawater desalination technology is the ideal answer to this crisis. However, the conventional technologies consume too much energy, which greatly restrict their popularization. A method for saltwater desalination is proposed based on high-voltage static electric field eliminating the dissolved ions in saltwater. The desalination function is realized by static high-voltage electric field exerting electric force on the ions in the salt solution to strongly separate the ions of the contrary sign. Three factors were simulated to reveal their effects on the ion distribution or the separation efficiency, including salt concentration, electric field intensity and width of water pipeline. Results shows that the above three factors greatly affect the ion distribution characteristics in the water pipeline. This method is helpful in energy saving for seawater desalination.

Simulation of Ion Distribution on both Sides of Insulation Film in Saltwater under Static Electric Field

2012 ◽  
Vol 538-541 ◽  
pp. 110-115 ◽  
Author(s):  
Liang Gu
Keyword(s):  
Electric Field ◽  
Fresh Water ◽  
Field Intensity ◽  
Electric Field Intensity ◽  
Salt Water ◽  
Negative Ions ◽  
Water Shortage ◽  
Ion Concentration ◽  
Static Electric Field ◽  
Ion Distribution

The world is facing a severe crisis of fresh water shortage. Seawater desalination technology is an ideal answer to this crisis. However, the conventional desalination technologies consume too much energy. New desalination methods are required to reduce the energy consumption. This paper proposes an idea for saltwater desalination based on the ions of contrary sign which attract each other on both sides of a thin insulation film in a high-voltage static electric field. In an insulation pipeline with saltwater, a piece of thin insulation film is installed vertically to the electric field. The positive ions were pumped onto the positive side of the film while the negative ions were pumped onto the negative side of it. Both ions accumulate at both sides of the film at the aid of electric field. The thinner is the insulation film, the stronger of the attractive force between positive and negative ions at opposite sides of the film and the higher the ion concentration on both sides of it. First, a model based on this idea was introduced. Then, four factors were simulated to reveal their effects on the ion distribution characteristics, including the salt concentration, the length of the pipeline, the electric field intensity, and the film thickness. The simulation results show that the desalination idea is practice to eliminate the dissolved ions in salt water and produce fresh water if the insulation film is thin enough and the electric field intensity is strong enough. The electric field only exerts electric force onto not the majority of water molecular but the minority of ions, so this method consumes much less energy than the conventional desalination methods.

Influence of high voltage static electric field on ultra-weak chemiluminescence of sheep semen

1998 ◽  
Vol 43 (4) ◽  
pp. 305-308 ◽  
Author(s):  
Huang Zhenyong ◽  
Gao Shaorong ◽  
Zhang Zhongcheng
Keyword(s):  
Electric Field ◽  
High Voltage ◽  
Static Electric Field

Current Status and Development of Chinese Seawater Desalination Technology

2014 ◽  
Vol 700 ◽  
pp. 511-514
Author(s):  
Xiao Mei Deng ◽  
Li Zhen Gao
Keyword(s):  
Climate Change ◽  
Water Scarcity ◽  
Water Shortage ◽  
Green Energy ◽  
Current Status ◽  
Seawater Desalination ◽  
Development Direction ◽  
Desalination Technology ◽  
Harsh Climate

Based on the increasingly harsh climate change and water scarcity in China, the seawater desalination is gradually becoming one of the important alternatives to solve the problems of water shortage. This paper makes a comparison among various technologies for seawater desalination and forecasts the development direction and the advanced desalination process merged with other green energy techniques.

scholarly journals Effect of high-voltage electrostatic field on cryopreservation of human epidermal melanocytes

2021 ◽  
Vol 233 ◽  
pp. 02039
Author(s):  
Xu Cai ◽  
Pengcheng Li ◽  
Benke Chen ◽  
Qian Li ◽  
Jintian Tang ◽  
...  
Keyword(s):  
Electric Field ◽  
High Voltage ◽  
Electrostatic Field ◽  
Physiological Activity ◽  
Proliferation Rate ◽  
Cell Deformation ◽  
Control Group ◽  
Freezing Damage ◽  
Static Electric Field ◽  
Supercooling Degree

The objective of this research was to evaluate the influence of high-voltage electrostatic field (HVEF) on the freezing of human epidermal melanocytes (HEM) with respect to the degree of cell deformation, survival and proliferation rate after cell resuscitation. As a result, the degree of supercooling is increased by enhancing the strength of the static electric field in the range of 15 kV/m, and the maximum supercooling degree is 7.83±0.05 °C at 15 kV/m. By contrast, the morphology of the electric field assisted freezing cell after resuscitation was significantly improved, and the best electric field strength for cryopreservation is 15 kV/m. The survival rate of human epidermal melanocytes recovered was 88.03%, which was higher than that of the control group. The proliferation rate at 24, 48 and 72 hours are 17%, 28% and 25%, respectively, which are higher than that of the control cells. These findings demonstrate that the freezing HVEF can protect the cell physiological activity, and reduce the freezing damage. Therefore, the optimal HVEF cryopreservation technology be of great significance for the research of tissue engineering in repairing wounds, infections, and promote the development of food, medicine and other fields.

scholarly journals IMPACTS OF STATIC ELECTRIC FIELD PRODUCED BY ULTRA-HIGH-VOLTAGE DIRECT-CURRENT TRANSMISSION LINES ON HIPPOCAMPAL PROTEIN EXPRESSION AND MORPHOLOGICAL STRUCTURE IN MICE

2021 ◽  
Author(s):  
JINGTONG YU ◽  
CHUNXIA ZHAO ◽  
XIAOYU GU ◽  
GUOQING DI ◽  
YAQIAN XU
Keyword(s):  
Body Weight ◽  
Electric Field ◽  
Protein Expression ◽  
High Voltage ◽  
Direct Current ◽  
Transmission Lines ◽  
Morphological Structure ◽  
Static Electric Field ◽  
Expression Levels ◽  
High Voltage Direct Current

Static electric field (SEF) from ultra-high-voltage direct-current (UHVDC) transmission lines has the potential to produce neurobiological effects. To explore these effects and elucidate their potential mechanisms, protein expression levels and morphological structure in the hippocampi of mice were investigated after SEF exposure. Mice from the Institute of Cancer Research were exposed to an environmental SEF induced by UHVDC transmission lines with the strength of 9.20–21.85[Formula: see text]kV/m for 35 days. Mouse body weight was measured weekly during the exposure. After the exposure, hippocampal Ca[Formula: see text]/calmodulin-dependent protein kinase II (CaMKII) and calcineurin (CaN) expression levels were assayed by Western blot. Hippocampal pathologic morphology and ultrastructure were observed using light microscopy and transmission electron microscopy, respectively. No significant differences in body weight, CaMKII and CaN expression levels, and hippocampal pathologic morphology were observed between mice in the exposed and the control groups. However, cytoplasmic vacuolization of the hippocampal neurons was observed in the exposed group. Thus, hippocampal neuron ultrastructure damage may be a mechanism of SEF-exposure-induced memory decline in mice.

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