Dark production of hydroxyl radicals by aeration of anoxic lake water
作者： Marco Minella , Elisa De Laurentiis , Valter Maurino , Claudio Minero , Davide Vione
DOI: 10.1016/J.SCITOTENV.2015.04.123
关键词: Anoxic waters 、 Environmental chemistry 、 Environmental engineering 、 Epilimnion 、 Pollutant 、 Radical 、 Limnic eruption 、 Hypolimnion 、 Water column 、 Chemistry 、 Aeration
摘要: Abstract Lake circulation is an important phenomenon that ensures oxygenation of the water column. Here we report aeration anoxic hypolimnion causes production highly reactive hydroxyl radicals ( OH), which are also produced photochemically in epilimnion. Model calculations suggest dark process OH generation can be comparable with photochemical reactions some lake environments, provided a significant fraction whole volume. In these cases, overturn could significantly contribute to yearly budget and might cause degradation pollutants, for reaction removal from surface waters.
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