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Water Levels Dropping in Some of the Worlds Major Rivers

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Rivers in some of the world’s most populous regions are losing water, according to a comprehensive study of global stream flows. suggests that the reduced flows in many cases are associated with climate change, and could potentially threaten future supplies of food and water. Cliff Jacobs of NSF’s Division of Atmospheric Sciences.

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U Alberta study shows for the first time that sunlight causes chemical reactions in road dust; singlet oxygen

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— In the study, the team study, investigated the photochemical production of 1 O 2 by size-fractionated road dust collected in Edmonton, Alberta and compared the reactivity of this substrate to that of Arizona test dust, Niger sand, and Cape Verde dust. Cote, Stephanie R. Schneider, Ming Lyu, Sherry Gao, Lin Gan, Adam J. 7b00533.

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Tohoku researchers develop efficient hydrodynamic reactor for pretreatment of biomass

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HD has been studied for industrial applications such as sterilization of food and water, cell disruption, wastewater treatment, decomposition of excess sludge, generation of submicrometer emulsions, and biodiesel production. These bubbles subsequently collapse when the pressure increases downstream of the constriction. 5b04375.

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