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Dye biosorption from water employing chemically modified calabrian pine cone shell as an effective biosorbent

22-Mar-2015 | Fatih Deniz, Environmental Progress, 2015

The feasibility of base (0.1 M NaOH) treated cone shell of Calabrian pine as an effective and inexpensive biosorbent was examined for removal of C.I. Basic Red 46 as a model azo dye from aqueous solution. Biosorption conditions selected for this study were optimized using Taguchi experimental ...


Oxidative Degradation of Nalidixic Acid by Nano-magnetite via Fe2+/O2-Mediated Reactions

20-Mar-2015 | Sandy G. Ardo; Sylvie Nélieu; Georges Ona-Nguema; Ghislaine Delarue; Jessica Brest; Elsa Pironin; Guillaume Morin, Environmental Science & Technology, 2015

Organic pollution has become a critical issue worldwide due to the increasing input and persistence of organic compounds in the environment. Iron minerals are potentially able to degrade efficiently organic pollutants sorbed to their surfaces via oxidative or reductive transformation processes. ...


Highly Efficient Forward Osmosis Based on Porous Membranes—Applications and Implications

19-Mar-2015 | Saren Qi; Ye Li; Yang Zhao; Weiyi Li; Chuyang Y. Tang, Environmental Science & Technology, 2015

For the first time, forward osmosis (FO) was performed using a porous membrane with an ultrafiltration (UF)-like rejection layer and its feasibility for high performance FO filtration was demonstrated. Compared to traditional FO membranes with dense rejection layers, the UF-like FO membrane was 2 ...


Influence of Copper Recovery on the Water Quality of the Acidic Berkeley Pit Lake, Montana, U.S.A.

12-Mar-2015 | Nicholas J. Tucci; Christopher H. Gammons, Environmental Science & Technology, 2015

The Berkeley Pit lake in Butte, Montana, formed by flooding of an open-pit copper mine, is one of the world’s largest accumulations of acidic, metal-rich water. Between 2003 and 2012, approximately 2 × 1011 L of pit water, representing 1.3 lake volumes, were pumped from the bottom of the lake to ...


Application of Dual Carbon–Bromine Isotope Analysis for Investigating Abiotic Transformations of Tribromoneopentyl Alcohol (TBNPA)

11-Mar-2015 | Anna Kozell; Yinon Yecheskel; Noa Balaban; Ishai Dror; Ludwik Halicz; Zeev Ronen; Faina Gelman, Environmental Science & Technology, 2015

Many of polybrominated organic compounds, used as flame retardant additives, belong to the group of persistent organic pollutants. Compound-specific isotope analysis is one of the potential analytical tools for investigating their fate in the environment. However, the isotope effects associated ...


An in-depth assessment into simultaneous monitoring of Dissolved Reactive Phosphorus (DRP) and Low-Molecular-Weight Organic Phosphorus (LMWOP) in aquatic environments using Diffusive Gradients in Thin films (DGT)

10-Mar-2015 | Christian Wilhelm Mohr; Rolf David Vogt; Oddvar Røyset; Tom Andersen; Neha Amit Parekh, Journal of Environmental Monitoring, 2015

Long-term laborious and thus costly monitoring of phosphorus (P) fractions is required in order to provide reasonable estimates of the levels of bioavailable phosphorus for eutrophication studies. A practical solution to this problem is the application of passive samplers, known as Diffusive ...


Influence of Oxygenation on Chromium Redox Reactions with Manganese Sulfide (MnS(s))

06-Mar-2015 | Amar R. Wadhawan; Kenneth J. Livi; Alan T. Stone; Edward J. Bouwer, Environmental Science & Technology, 2015

Manganese sulfide (MnS(s)) minerals exist in sulfidic environments and can have unique reactive abilities because of sulfide, which is a known reductant, and Mn, the oxyhydroxides of which are known oxidants. This study elucidated the role of MnS(s) in controlling Cr speciation with implications ...


Natural Colloidal P and Its Contribution to Plant P Uptake

06-Mar-2015 | Daniela Montalvo; Fien Degryse; Mike J. McLaughlin, Environmental Science & Technology, 2015

Phosphorus (P) bioavailability depends on its concentration and speciation in solution. Andisols and Oxisols have very low soil solution concentration of free orthophosphate, as they contain high concentrations of strongly P-sorbing minerals (Al/Fe oxyhydroxides, allophanes). Free orthophosphate ...


Mechanisms of Sb(III) Oxidation by Pyrite-Induced Hydroxyl Radicals and Hydrogen Peroxide

04-Mar-2015 | Linghao Kong; Xingyun Hu; Mengchang He, Environmental Science & Technology, 2015

Antimony (Sb) is an element of growing interest, and its toxicity and mobility are strongly influenced by redox processes. Sb(III) oxidation mechanisms in pyrite suspensions were comprehensively investigated by kinetic measurements in oxic and anoxic conditions and simulated sunlight. Sb(III) was ...


Sustainability, Vol. 7, Pages 2603-2622: Evaluation of an Educational Model Based on the Development of Sustainable Competencies in Basic Teacher Training in Spain

03-Mar-2015 | Vega-Marcote, Pedro ; Varela-Losada, Mercedes ; Álvarez-Suárez, Pedro, Sustainability, 2015

The environmental deterioration of the planet, caused by unsustainable development and an unfair model, requires global change on a political, social and environmental level. To boost this change, it is necessary to redirect education and, specifically, environmental education, to educate ...


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