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Monohydroxylated Polybrominated Diphenyl Ethers (OH-PBDEs) and Dihydroxylated Polybrominated Biphenyls (Di-OH-PBBs): Novel Photoproducts of 2,6-Dibromophenol

16-Nov-2015 | Hongxia Zhao; Jingqiu Jiang; Yanli Wang; Hans-Joachim Lehmler; Garry R. Buettner; Xie Quan; Jingwen Chen, Environmental Science & Technology, 2015

Hydroxylated polybromodiphenyl ethers (OH-PBDEs) are emerging aquatic pollutants, but their origins in the environment are not fully understood. There is evidence that OH-PBDEs are formed from bromophenols, but the underlying transformation processes remain unknown. Here, we investigate if the ...


Role of Reverse Divalent Cation Diffusion in Forward Osmosis Biofouling

09-Nov-2015 | Ming Xie; Edo Bar-Zeev; Sara M. Hashmi; Long D. Nghiem; Menachem Elimelech, Environmental Science & Technology, 2015

We investigated the role of reverse divalent cation diffusion in forward osmosis (FO) biofouling. FO biofouling by Pseudomonas aeruginosa was simulated using pristine and chlorine-treated thin-film composite polyamide membranes with either MgCl2 or CaCl2 draw solution. We related FO biofouling ...


Microfluidic Flow through Polyaniline Supported by Lamellar-Structured Graphene for Mass-Transfer-Enhanced Electrocatalytic Reduction of Hexavalent Chromium

09-Nov-2015 | Qinghua Ji; Dawei Yu; Gong Zhang; Huachun Lan; Huijuan Liu; Jiuhui Qu, Environmental Science & Technology, 2015

Owing to its high efficiency and environmental compatibility, electroreduction holds great promise for the detoxification of aqueous Cr(VI). However, the typical electroreduction system often shows poor mass transfer, which results in slow reduction kinetics and hence higher energy consumption. ...


Impact of Maximum Allowable Cost on CO2 Storage Capacity in Saline Formations

04-Nov-2015 | Simon A. Mathias; Jon G. Gluyas; Ward H. Goldthorpe; Eric J. Mackay, Environmental Science & Technology, 2015

Injecting CO2 into deep saline formations represents an important component of many greenhouse-gas-reduction strategies for the future. A number of authors have posed concern over the thousands of injection wells likely to be needed. However, a more important criterion than the number of wells is ...


In Situ Liquid Cell Observations of Asbestos Fiber Diffusion in Water

02-Nov-2015 | Lei Wu; Carlos Ortiz; Ye Xu; Jane Willenbring; Douglas Jerolmack, Environmental Science & Technology, 2015

We present real-time observations of the diffusion of individual asbestos fibers in water. We first scaled up a technique for fluorescent tagging and imaging of chrysotile asbestos fibers and prepared samples with a distribution of fiber lengths ranging from 1 to 20 μm. Experiments were then ...


Influence of Intrinsic Colloid Formation on Migration of Cerium through Fractured Carbonate Rock

27-Oct-2015 | Emily L. Tran; Ofra Klein-BenDavid; Nadya Teutsch; Noam Weisbrod, Environmental Science & Technology, 2015

Migration of colloids may facilitate the transport of radionuclides leaked from near surface waste sites and geological repositories. Intrinsic colloids are favorably formed by precipitation with carbonates in bicarbonate-rich environments, and their migration may be enhanced through fractured ...


Activation of Peroxymonosulfate by Benzoquinone: A Novel Nonradical Oxidation Process

23-Oct-2015 | Yang Zhou; Jin Jiang; Yuan Gao; Jun Ma; Su-Yan Pang; Juan Li; Xue-Ting Lu; Li-Peng Yuan, Environmental Science & Technology, 2015

The reactions between peroxymonosulfate (PMS) and quinones were investigated for the first time in this work, where benzoquinone (BQ) was selected as a model quinone. It was demonstrated that BQ could efficiently activate PMS for the degradation of sulfamethoxazole (SMX; a frequently detected ...


Isotope Fractionation Associated with the Indirect Photolysis of Substituted Anilines in Aqueous Solution

14-Oct-2015 | Marco Ratti; Silvio Canonica; Kristopher McNeill; Jakov Bolotin; Thomas B. Hofstetter, Environmental Science & Technology, 2015

Organic micropollutants containing aniline substructures are susceptible to different light-induced transformation processes in aquatic environments and water treatment operations. Here, we investigated the magnitude and variability of C and N isotope fractionation during the indirect ...


Study of Reciprocal Effects between Mandatory Pollutant Emissions Reduction Policy and Structural Change within the Manufacturing Sector in a Chinese Coastal Area

13-Oct-2015 | Yang Guo; Xianglin Guo; Jinping Tian; Lujun Chen, Environmental Science & Technology, 2015

We develop a multicriteria decision-making model coupled with scenario analysis to quantitatively elucidate the reciprocal effect between a mandatory pollutant emissions reduction policy and industrial structure change within the manufacturing sector on the basis of an in-depth study of a ...


Are Cellulose Nanofibers a Solution for a More Circular Economy of Paper Products?

08-Oct-2015 | Marc Delgado-Aguilar; Quim Tarrés; M. Àngels Pèlach; Pere Mutjé; Pere Fullana-i-Palmer, Environmental Science & Technology, 2015

This paper presents the study of the feasibility of incorporating lignocellulosic nanofibers (LCNF) to paper in order to maintain the relevant physical properties and increase the number of cycles that paper can be recycled in the technosphere in a more circular economy. For that purpose, the ...


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