scholarly journals Reactive transport experiments of coupled carbonation and serpentinization in a natural serpentinite. Implication for hydrogen production and carbon geological storage

2021 ◽  
Author(s):  
Florian Osselin ◽  
Michel Pichavant ◽  
Marc Ulrich ◽  
Hugues Raimbourg
Keyword(s):  
Hydrogen Production ◽  
Reactive Transport ◽  
Geological Storage

scholarly journals Reactive transport simulations to study groundwater quality changes in response to CO2 leakage from deep geological storage

2009 ◽  
Vol 1 (1) ◽  
pp. 1887-1894 ◽  
Author(s):  
Liange Zheng ◽  
John A. Apps ◽  
Yingqi Zhang ◽  
Tianfu Xu ◽  
Jens T. Birkholzer
Keyword(s):  
Groundwater Quality ◽  
Reactive Transport ◽  
Quality Changes ◽  
Geological Storage ◽  
Co2 Leakage

Utilization of electrical charges in the pores of tofu waste for hydrogen production in water

2020 ◽  
pp. 124-135
Author(s):  
I. N. G. Wardana ◽  
N. Willy Satrio
Keyword(s):  
Magnetic Field ◽  
Hydrogen Production ◽  
Sodium Bicarbonate ◽  
Positive Charge ◽  
Electrical Energy ◽  
Hydrogen Sensor ◽  
Water Molecules ◽  
Partial Charge ◽  
Delocalized Electron ◽  
Water Hydrogen

Tofu is main food in Indonesia and its waste generally pollutes the waters. This study aims to change the waste into energy by utilizing the electric charge in the pores of tofu waste to produce hydrogen in water. The tofu pore is negatively charged and the surface surrounding the pore has a positive charge. The positive and negative electric charges stretch water molecules that have a partial charge. With the addition of a 12V electrical energy during electrolysis, water breaks down into hydrogen. The test was conducted on pre-treated tofu waste suspension using oxalic acid. The hydrogen concentration was measured by a MQ-8 hydrogen sensor. The result shows that the addition of turmeric together with sodium bicarbonate to tofu waste in water, hydrogen production increased more than four times. This is due to the fact that magnetic field generated by delocalized electron in aromatic ring in turmeric energizes all electrons in the pores of tofu waste, in the sodium bicarbonate, and in water that boosts hydrogen production. At the same time the stronger partial charge in natrium bicarbonate shields the hydrogen proton from strong attraction of tofu pores. These two combined effect are very powerful for larger hydrogen production in water by tofu waste.

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