Alternative cost-effective electrodes for hydrogen production in saline water condition

2019 ◽  
Vol 44 (11) ◽  
pp. 5090-5098 ◽  
Author(s):  
M. Kovendhan ◽  
Hari Kang ◽  
Jong Sang Youn ◽  
Hyunwook Cho ◽  
Ki-Joon Jeon
Keyword(s):  
Hydrogen Production ◽  
Saline Water ◽  
Cost Effective ◽  
Water Condition

Efficient hydrogen production by saline water electrolysis at high current densities without the interfering chlorine evolution

2021 ◽  
Author(s):  
Zhipeng Yu ◽  
Junyuan Xu ◽  
Li-jian Meng ◽  
Lifeng Liu
Keyword(s):  
Hydrogen Production ◽  
Saline Water ◽  
Renewable Energy Sources ◽  
Water Electrolysis ◽  
Cost Effective ◽  
High Current ◽  
Chlorine Evolution ◽  
Cost Effective Approach ◽  
Current Densities ◽  
Seawater Electrolysis

Seawater electrolysis powered by renewable energy sources has been proposed to be a potentially cost-effective approach to green hydrogen production. However, the long-standing issue regarding the chlorine evolution reaction (CER)...

Modular Concept of a Cost-Effective and Efficient On-Site Hydrogen Production Solution

2017 ◽  
Author(s):  
Markus Sartory ◽  
Markus Justl ◽  
Patrick Salman ◽  
Alexander Trattner ◽  
Manfred Klell ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Cost Effective ◽  
Modular Concept

scholarly journals Microalgal Hydrogen Production in Relation to Other Biomass-Based Technologies—A Review

Energies ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 6025
Author(s):  
Marcin Dębowski ◽  
Magda Dudek ◽  
Marcin Zieliński ◽  
Anna Nowicka ◽  
Joanna Kazimierowicz
Keyword(s):  
Hydrogen Production ◽  
Carbon Dioxide Emissions ◽  
Atmospheric Carbon Dioxide ◽  
Water Electrolysis ◽  
Cost Effective ◽  
Biofuel Production ◽  
Production Technologies ◽  
Main Barrier ◽  
Biological Methods ◽  
And Storage

Hydrogen is an environmentally friendly biofuel which, if widely used, could reduce atmospheric carbon dioxide emissions. The main barrier to the widespread use of hydrogen for power generation is the lack of technologically feasible and—more importantly—cost-effective methods of production and storage. So far, hydrogen has been produced using thermochemical methods (such as gasification, pyrolysis or water electrolysis) and biological methods (most of which involve anaerobic digestion and photofermentation), with conventional fuels, waste or dedicated crop biomass used as a feedstock. Microalgae possess very high photosynthetic efficiency, can rapidly build biomass, and possess other beneficial properties, which is why they are considered to be one of the strongest contenders among biohydrogen production technologies. This review gives an account of present knowledge on microalgal hydrogen production and compares it with the other available biofuel production technologies.

scholarly journals Quantitative estimations of aquifer properties from resistivity in the Bolivian highlands

2019 ◽  
Vol 2 (1) ◽  
pp. 113-124
Author(s):  
Etzar Gómez ◽  
Viktor Broman ◽  
Torleif Dahlin ◽  
Gerhard Barmen ◽  
Jan-Erik Rosberg
Keyword(s):  
Hydraulic Conductivity ◽  
Saline Water ◽  
Cost Effective ◽  
Unconsolidated Sediments ◽  
Aquifer System ◽  
Transient Electromagnetic ◽  
Rock Formations ◽  
Hydrogeological Characteristics ◽  
Electrical Soundings ◽  
Available Information

Abstract Resistivity data constitute the largest part of the available information to assess the hydrogeological characteristics of the aquifer system near Oruro, in the central part of the Bolivian Altiplano. Two aquifers are part of this system; top unconsolidated sediments storing fresh water in their granular voids, overlying fractured hard rock formations where saline water was detected in connection to some faults. This study proposes an indirect and cost-effective way to estimate aquifer hydraulic properties for the groundwater management in the region. Hydraulic conductivity and transmissivity in the top aquifer were estimated using an empirical linear relationship between hydraulic conductivity and resistivity. This latter parameter, as well as the aquifer thickness, were obtained from the inverted models corresponding to the geoelectrical tests performed in the study area (electrical resistivity tomography, transient electromagnetic soundings and vertical electrical soundings). The highest estimated transmissivity values are ∼4.0 × 10−2 m2/s located in the centre of the study area, the lowest values are ∼3.4 × 10−3 m2/s, located around thermal intrusions to the south and where the top of the bedrock is shallow (∼20 m depth) to the west. The methodology presented in this study makes wider use of resistivity measurements to identify promising groundwater production sites.

scholarly journals Solar desalination coupled with water remediation and molecular hydrogen production: a novel solar water-energy nexus

2018 ◽  
Vol 11 (2) ◽  
pp. 344-353 ◽  
Author(s):  
Seonghun Kim ◽  
Guangxia Piao ◽  
Dong Suk Han ◽  
Ho Kyong Shon ◽  
Hyunwoong Park
Keyword(s):  
Hydrogen Production ◽  
Molecular Hydrogen ◽  
Saline Water ◽  
Water Remediation ◽  
Wastewater Remediation ◽  
Solar Water ◽  
Solar Desalination ◽  
Water Energy Nexus

A novel solar water-energy nexus technology is presented that combines the solar desalination of saline water and desalination-driven wastewater remediation coupled with the production of H2.

Respond of Plant Growth and Soil Water-Salt to Different Irrigation Amounts in Little Thickness Aeration Zone in the Hinterland of Taklimakan Desert

2013 ◽  
Vol 726-731 ◽  
pp. 3872-3876 ◽  
Author(s):  
Xiao Jun Jin ◽  
Jing Long Fan ◽  
Bo Xu ◽  
Bing Wen Li ◽  
Xin Wen Xu
Keyword(s):  
Plant Growth ◽  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Irrigation Water ◽  
Saline Water ◽  
Taklimakan Desert ◽  
Water Condition ◽  
Sustainable Water Supply ◽  
Water Salt

In order to clarify the influence of saline water irrigation to plant growth and distribution ofsoil water-salt, and providing theoretical basis for sustainable water supply of ecological constructionin desert area, the data of soil water-salt and plant growth was observed at Tarim Desert HighwayShelter-forest Ecological Project No. 17 well. The law of soil water and salt spatial distribution wasanalyzed, and the responses of plant growth to 4 different irrigation amounts were studied by singleelement variance analysis. The results were as follows: the soil water content reaches or is close tosaturation in layer of 100~120cm under the 420mm irrigation water condition; The soil water contentreaches or is close to saturation in layer of 160~180cm under the 233.1mm irrigation water condition;The soil water content reaches or is close to saturation in layer of 180~200cm under the 285.6mm irrigation water condition; The soil water content reaches or is close to saturation in layer of160~180cm under the 201.6mm irrigation water condition. The vertical distribution law of soilssalinity is that the soil salt can enter groundwater after 3 days of irrigation, and be gathered in 0~30cmsoil layer. There were no significant differences except the Tamarix plant height in plant growthindexes among 4 different irrigation quantities treatments.

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