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The progress of dissimilatory iron(III) reduction is widespread in natural environments, particularly in anoxic habitats; in fact, wetland ecosystems are considered as “hotspots” of dissimilatory Fe(III) reduction. In this study, we conducted...
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Xiaoyan Zhu, Yuxiang Yuan and Ming Jiang
The progress of dissimilatory iron(III) reduction is widespread in natural environments, particularly in anoxic habitats; in fact, wetland ecosystems are considered as “hotspots” of dissimilatory Fe(III) reduction. In this study, we conducted...
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Mengmeng Tang, Chaoyong Wang, Zaitian Dong, Qianjin Che, Zetang Wang and Yuxuan Zhu
The biological reduction of Fe (III) is common in underground environments. This process not only affects the biogeochemical cycle of iron but also influences the migration and transformation of pollutants. Humic substances are considered effective strat...
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Hyeoksun Choi and Sanghwa Oh
The abiotic reduction of NO3- to NO2-?coupled with the oxidation of labile organic materials such as citric acid, syringic acid and natural organic matter (NOM) and NH4+ through the goethite-mediated Fe(III)/Fe(II) cycle under anaerobic condition?was inv...
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Anna Gröhlich, Margarethe Langer, Manassis Mitrakas, Anastasios Zouboulis, Ioannis Katsoyiannis, Mathias Ernst
Pág. 1 - 15
Due to its toxicity, Cr(VI) is undesirable in groundwater. Its chemical reduction to Cr(III) species, followed by precipitation is the most widely practiced treatment technique for the removal of Cr(VI) from polluted waters. The resulting Cr(III) species...
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V.L. Shirokova, A.M.L. Enright, C.B. Kennedy, F.G. Ferris
Pág. 604 - 612
This investigation evaluates spatial relationships between summer (July) groundwater temperatures and Fe(II)/Fe(III) biogeochemical cycling over a five year period in a shallow pristine sand aquifer at Meilleurs Bay near Deep River, Ontario, Canada. A wa...
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Marco Rotiroti, Rasmus Jakobsen, Letizia Fumagalli and Tullia Bonomi
The reductive dissolution of Fe-oxide driven by organic matter oxidation is the primary mechanism accepted for As mobilization in several alluvial aquifers. These processes are often mediated by microorganisms that require a minimum Gibbs energy availabl...
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Margarethe Langer, Mohammad Umair Jamal, Amanda Conklin and Mathias Ernst
Cr(VI) is toxic and carcinogenic, which fuels discussions on reducing existing standards for maximum Cr concentrations in drinking water. Fe(II) reductive precipitation is a common and economical method for achieving very low Cr(tot) concentrations (<5 µ...
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Hailin Yang, Shan Yu and Hailong Lu
Anaerobic oxidation of methane (AOM) is one of the major processes of oxidizing methane in marine sediments. Up to now, extensive studies about AOM coupled to sulfate reduction have been conducted because SO42- is the most abundant electron acceptor in s...
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Natalia Kapetanaki, Evangelia Krasakopoulou, Eleni Stathopoulou, Manos Dassenakis and Michael Scoullos
Normally atmospheric CO2 is the major driver of ocean acidification (OA); however, local discharge/degradation of organic matter (OM) and redox reactions can exacerbate OA in coastal areas. In this work we study the response of nutrient and carbon system...
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Xiaoyi Lou, Yifan Sui, Qichao Zhang, Changling Fang, Yunyu Tang, Xuan Zhang, Guangxin Yang, Yongfu Shi, Dongmei Huang, Jie Guan and Yaoguang Guo
The removal of decabromodiphenyl ether (BDE 209), as a typical persistent organic pollutant (POP), is of worldwide concern. Mechanochemical (MC) processes are promising methods to degrade environmental pollutants, most of which use a single grinding reag...
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Jonathan Deborde, Cyril Marchand, Nathalie Molnar, Luc Della Patrona and Tarik Meziane
In mangrove ecosystems, strong reciprocal interactions exist between plant and substrate. Under semi-arid climate, Rhizophora spp. are usually predominant, colonizing the seashore, and Avicennia marina develops at the edge of salt-flats, which is the hig...
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