Organic Matter Synthesized After The Flow Of Ultra-pure, Tap And Sea Waters Through Micro-orifices | 95892
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When passing ultrapure water (UPW*), tap water and sea water all of which are dissolving air through micro-orifices,
we found that the flow velocity decreased and stopped over time and membranes were frequently formed in the orifice
when the flow stopped. We identified the chemical components of the membrane and found those of UPW* and tap water
different from the components present in the UPW* and the tap water themselves by using an electron probe microanalyzer.
Raman and infrared (IR) spectroscopy showed that the membrane consisted of organic substances such as carotenoids, amides,
esters and sugars. We irradiated UPW* with ultraviolet light to cut organic chains that may be left in UPW* as contaminants.
We found a similar membrane and organic compounds as in nonirradiated UPW*. Furthermore, no membrane was formed
for the ultrapure water that was kept from contact with air after it was supplied from the ultrapure water-maker (UPW0) and
bubbled with Ar gas (UPW0 bubbled with Ar). We found that the electric grounding of the orifice reduces the probability of
membrane formation and that the jets issuing from an aperture bear negative charges and we assumed that the micro-orifices
possess positive charges generated by flows. Similar membranes were found for ultra-pure water, tap water and sea water which
dissolve air. Consequently, we suggest that organic compounds are synthesized from nonorganic matter in air dissolved in
waters by the action of hydroxyl radicals generated by flows through micro-orifices.
Tomiichi Hasegawa has completed his Ph.D. at the age of 28 years from Tokyo Institute of Technology. He became a lecturer on 1973 and was a professor from 1982 to 2010 at Niigata University. He was the dean of Faculty of Engineering and Graduate School of Natural Science and Technology at Niigata University. Now he is the president of Niigata College of Technology. He was the president of Japan Society of Rheology from 2003 to 2005. He has published more than 100 papers in journals of fluid mechanics, fluid engineering and Rheology. He got several awards.