scholarly journals Simultaneous Water Purification and Energy Production in a Microbial Desalination Cell

Author(s):  
Abdelsalam Elawwad ◽  
Mostafa Ragab
Author(s):  
Shalini Verma ◽  
Mohd. Bilal Khan

Bioentrepreneurship is the combination of different activities carried out by groups of people to form an enterprise that designs and commercializes great products by merging various scientific and business disciplines. In this chapter, the authors review the impact of bioentrepreneurship in the field of environmental technology. This approaches as an alternative to protect and sustain nature focusing on different aspects like nanotechnology-assisted water purification, phytoremediation of polluted environment, microbial and vermi remediation, etc. Another aspect approached is the finding and development of new plants as a biomass source for energy production, which are objectives for start-ups and have great business potential. Finally, the chapter examines the ability of the proposed theoretical framework to transcend its environmental context and provide insight into expanding the domain of the study of entrepreneurship. Simply put, economic logics embody principles of economic coordination or conventions that guide interpretation of the technology and its value.


2015 ◽  
Vol 44 (21) ◽  
pp. 7808-7828 ◽  
Author(s):  
David James Martin ◽  
Guigao Liu ◽  
Savio J. A. Moniz ◽  
Yingpu Bi ◽  
Andrew M. Beale ◽  
...  

Photocatalysis is a promising technology that can contribute to renewable energy production from water and water purification.


Author(s):  
W.A. Jacob ◽  
R. Hertsens ◽  
A. Van Bogaert ◽  
M. De Smet

In the past most studies of the control of energy metabolism focus on the role of the phosphorylation potential ATP/ADP.Pi on the regulation of respiration. Studies using NMR techniques have demonstrated that the concentrations of these compounds for oxidation phosphorylation do not change appreciably throughout the cardiac cycle and during increases in cardiac work. Hence regulation of energy production by calcium ions, present in the mitochondrial matrix, has been the object of a number of recent studies.Three exclusively intramitochondnal dehydrogenases are key enzymes for the regulation of oxidative metabolism. They are activated by calcium ions in the low micromolar range. Since, however, earlier estimates of the intramitochondnal calcium, based on equilibrium thermodynamic considerations, were in the millimolar range, a physiological correlation was not evident. The introduction of calcium-sensitive probes fura-2 and indo-1 made monitoring of free calcium during changing energy metabolism possible. These studies were performed on isolated mitochondria and extrapolation to the in vivo situation is more or less speculative.


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