Reporting Requirements for the TSCA Mercury Inventory
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Influence of Sulfide, Chloride and Dissolved Organic Matter On
Chen et al. Sustainable Environment Research (2020) 30:22 Sustainable Environment https://doi.org/10.1186/s42834-020-00065-5 Research RESEARCH Open Access Influence of sulfide, chloride and dissolved organic matter on mercury adsorption by activated carbon in aqueous system Chi Chen, Yu Ting, Boon-Lek Ch’ng and Hsing-Cheng Hsi* Abstract Using activated carbon (AC) as thin layer capping to reduce mercury (Hg) released from contaminated sediment is a feasible and durable remediation approach. However, several aqueous factors could greatly affect the Hg fate in the aquatic system. This study thus intends to clarify the influences on Hg adsorption by AC with the presence of sulfide, dissolved organic matter (DOM), and chloride. The lab-scale batch experiments were divided into two parts, including understanding (1) AC adsorption performance and (2) Hg distribution in different phases by operational definition method. Results showed that the Hg adsorption rate by AC was various with the presence of sulfide, chloride, and DOM (from fast to slow). Hg adsorption might be directly bonded to AC with Hg-Cl and Hg-DOM complexes and the rate was mainly controlled by intraparticle diffusion. In contrast, “Hg + sulfide” result was better described by pseudo-second order kinetics. The Hg removal efficiency was 92–95% with the presence of 0–400 mM chloride and approximately 65–75% in the “Hg + sulfide” condition. Among the removed Hg, 24–29% was formed into aqueous-phase particles and about 30% HgwasadsorbedonACwith2–20 μM sulfide. Increasing DOM concentration resulted in more dissolved Hg. The proportion of dissolved Hg increased 31% by increasing DOM concentration from 0.25 to 20 mg C L− 1. -
Mercury Sulfide Dimorphism in Thioarsenate Glasses Mohammad Kassem, Anton Sokolov, Arnaud Cuisset, Takeshi Usuki, Sohayb Khaoulani, Pascal Masselin, David Le Coq, M
Mercury Sulfide Dimorphism in Thioarsenate Glasses Mohammad Kassem, Anton Sokolov, Arnaud Cuisset, Takeshi Usuki, Sohayb Khaoulani, Pascal Masselin, David Le Coq, M. Feygenson, C. J. Benmore, Alex Hannon, et al. To cite this version: Mohammad Kassem, Anton Sokolov, Arnaud Cuisset, Takeshi Usuki, Sohayb Khaoulani, et al.. Mer- cury Sulfide Dimorphism in Thioarsenate Glasses. Journal of Physical Chemistry B, American Chem- ical Society, 2016, 120 (23), pp.5278 - 5290. 10.1021/acs.jpcb.6b03382. hal-01426924 HAL Id: hal-01426924 https://hal.archives-ouvertes.fr/hal-01426924 Submitted on 5 Jan 2017 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Article Mercury Sulfide Dimorphism in Thioarsenate Glasses Mohammad Kassem, Anton Sokolov, Arnaud Cuisset, Takeshi Usuki, Sohayb Khaoulani, Pascal Masselin, David Le Coq, Joerg C. Neuefeind, Mikhail Feygenson, Alex C Hannon, Chris J. Benmore, and Eugene Bychkov J. Phys. Chem. B, Just Accepted Manuscript • Publication Date (Web): 23 May 2016 Downloaded from http://pubs.acs.org on May 23, 2016 Just Accepted “Just Accepted” manuscripts have been peer-reviewed and accepted for publication. They are posted online prior to technical editing, formatting for publication and author proofing. -
Journal of Materials Chemistry C Rscpublishing COMMUNICATION
Journal of Materials Chemistry C RSCPublishing COMMUNICATION The room temperature phosphine-free organometallic synthesis of near-infrared emitting Cite this: DOI: 10.1039/x0xx00000x HgSe quantum dots H. Mirzai,a M. N. Nordin,b,c R. J. Curry,b J.-S. Bouillard,a A. V. Zayats,a M. a Received 00th January 2012, Green* Accepted 00th January 2012 DOI: 10.1039/x0xx00000x Luminescent mercury selenide (HgSe) quantum dots have been synthesised by a phosphine- free method using oleic acid as a capping agent. The modification of experimental conditions www.rsc.org/ such as temperature resulted in particles of various sizes (15 - 100 nm) and morphologies not previously seen in HgSe, with emission tuneable between 1000 nm and 1350 nm. The popularity of semiconductor quantum dots (QDs) and b Advanced Technology Institute, Department of Electronic Engineering, their association with next-generation opto-electronic devices University of Surrey, Guildford, Surrey.UK GU2 7XH c and biomedical applications has grown rapidly over the last Present address: Medical Engineering Technology Department, University Kuala Lumpur, 53100, Gombak, Malaysia. years. Current research focuses on various synthetic routes as a means to modify QD characteristics to satisfy specific due to the lack of obvious and safe precursors (despite the optical and magnetic requirements for applications such as fact that many early routes to nano-dispersed semiconductors biological imaging,1 telecommunications,2 photodetection3 4 were based on mercury chalcogenides). We have focused on and solar energy. Quantum dots have provided a new source mercury chalcogenides due to their low reaction temperatures of electromagnetic radiation on the nano-scale. -
Properties of Sputtered Mercury Telluride Contacts on P-Type Cadmium Telluride A
Properties of sputtered mercury telluride contacts on p-type cadmium telluride A. Zozime, C. Vermeulin To cite this version: A. Zozime, C. Vermeulin. Properties of sputtered mercury telluride contacts on p-type cadmium telluride. Revue de Physique Appliquée, Société française de physique / EDP, 1988, 23 (11), pp.1825- 1835. 10.1051/rphysap:0198800230110182500. jpa-00246011 HAL Id: jpa-00246011 https://hal.archives-ouvertes.fr/jpa-00246011 Submitted on 1 Jan 1988 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Revue Phys. Appl. 23 (1988) 1825-1835 NOVEMBRE 1988, 1825 Classification Physics Abstracts 73.40 - 79.20 Properties of sputtered mercury telluride contacts on p-type cadmium telluride A. Zozime and C. Vermeulin Laboratoire de Physique des Matériaux, CNRS, 1 place A. Briand, 92195 Meudon Cedex, France (Reçu le 12 avril 1988, révisé le 29 juillet 1988, accepté le 16 août 1988) Résumé. 2014 La valeur élevée du travail de sortie du composé semi-métallique HgTe (q03A6m ~ 5.9 eV) a conduit à utiliser ce matériau pour réaliser des contacts ohmiques de faible résistance spécifique 03C1c (03A9 cm2) sur le composé semi-conducteur II-VI CdTe de type p, dans la gamme des résistivités 70 03A9 cm 03C1B 45 k03A9 cm. -
Trends in Performance Limits of the HOT Infrared Photodetectors
applied sciences Review Trends in Performance Limits of the HOT Infrared Photodetectors Antoni Rogalski 1, Piotr Martyniuk 1,*, Małgorzata Kopytko 1 and Weida Hu 2 1 Faculty of Advanced Technologies and Chemistry, Institute of Applied Physics, Military University of Technology, 2 Kaliskiego St., 00-908 Warsaw, Poland; [email protected] (A.R.); [email protected] (M.K.) 2 State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yu Tian Road, Shanghai 200083, China; [email protected] * Correspondence: [email protected]; Tel.: +48-26-183-92-15 Abstract: The cryogenic cooling of infrared (IR) photon detectors optimized for the mid- (MWIR, 3–5 µm) and long wavelength (LWIR, 8–14 µm) range is required to reach high performance. This is a major obstacle for more extensive use of IR technology. Focal plane arrays (FPAs) based on thermal detectors are presently used in staring thermal imagers operating at room temperature. However, their performance is modest; thermal detectors exhibit slow response, and the multispectral detection is difficult to reach. Initial efforts to develop high operating temperature (HOT) photodetectors were focused on HgCdTe photoconductors and photoelectromagnetic detectors. The technological efforts have been lately directed on advanced heterojunction photovoltaic HgCdTe detectors. This paper presents the several approaches to increase the photon-detectors room-temperature performance. Various kinds of materials are considered: HgCdTe, type-II AIIIBV superlattices, two-dimensional materials and colloidal quantum dots. Keywords: HOT IR detectors; HgCdTe; P-i-N; BLIP condition; 2D material photodetectors; colloidal quantum dot photodetectors Citation: Rogalski, A.; Martyniuk, P.; Kopytko, M.; Hu, W. -
Bandgap-Engineered Hgcdte Infrared Detector Structures for Reduced Cooling Requirements
Bandgap-Engineered HgCdTe Infrared Detector Structures for Reduced Cooling Requirements by Anne M. Itsuno A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Electrical Engineering) in The University of Michigan 2012 Doctoral Committee: Associate Professor Jamie D. Phillips, Chair Professor Pallab K. Bhattacharya Professor Fred L. Terry, Jr. Assistant Professor Kevin P. Pipe c Anne M. Itsuno 2012 All Rights Reserved To my parents. ii ACKNOWLEDGEMENTS First and foremost, I would like to thank my research advisor, Professor Jamie Phillips, for all of his guidance, support, and mentorship throughout my career as a graduate student at the University of Michigan. I am very fortunate to have had the opportunity to work alongside him. I sincerely appreciate all of the time he has taken to meet with me to discuss and review my research work. He is always very thoughtful and respectful of his students, treating us as peers and valuing our opinions. Professor Phillips has been a wonderful inspiration to me. I have learned so much from him, and I believe he truly exemplifies the highest standard of teacher and technical leader. I would also like to acknowledge the past and present members of the Phillips Research Group for their help, useful discussions, and camaraderie. In particular, I would like to thank Dr. Emine Cagin for her constant encouragement and humor. Emine has been a wonderful role model. I truly admire her expertise, her accom- plishments, and her unfailing optimism and can only hope to follow in her footsteps. I would also like to thank Dr. -
Experimental Stability of Tellurium and Its Implications for the Venusian Radar Anomalies
44th Lunar and Planetary Science Conference (2013) 2951.pdf EXPERIMENTAL STABILITY OF TELLURIUM AND ITS IMPLICATIONS FOR THE VENUSIAN RADAR ANOMALIES. E. Kohler1, V. Chevrier1, P. Gavin1, N. Johnson2. 1Arkansas Center for Space and Plane- tary Sciences, University of Arkansas, Fayetteville, AR, 72701; 2National Aeronautics and Space Administration (NASA) Goddard Space Flight Center, Greenbelt, MD, 20771. [email protected] Introduction: Evidence of radar anomalies on Ve- portant aspect of determining the source, thus, it was nus has sparked debate about potential atmospheric chosen for this experiment. One gram of each were interactions with the surface. These high reflectivity heated to average Venusian surface conditions, and (low emissivity) anomalies have been found on the then to highland conditions (460°C and 90 bar, 380°C Venusian surface between altitudes of 2.5-4.75km and 55 bar respectively). The latter conditions are the using radar mapping [1-5]. There have been several anticipated temperature and pressure at the anomalies theoretical studies on the source of these anomalies altitude. After each run, the samples were weighed to including increased surface roughness, materials with determine stability and/or reactivity. Each compound higher dielectric constants or surface-atmospheric in- was also tested in a Lindberg tube oven at the Univer- teractions [1, 6]. Additionally, the literature suggests sity of Arkansas and heated to both 460°C and 380°C several possibilities of metal compound frosts or low at ambient pressure. The oven experiment isolated the lying clouds/fog. Evidence from Venera 13 and 14 effects of temperature. The samples were then ana- indicates a low layer cloud deck at an altitude of 1- lyzed using X-Ray Diffraction (XRD) and Scanning 2km that could consist of tellurium, bismuth, or lead Electron Microscope (SEM). -
Molecular Beam Epitaxy of Cdxhg12xte
12 Molecular Beam Epitaxy of CdxHg12xTe Yu.G. Sidorov1, A.P. Anciferov1, V.S. Varavin1, S.A. Dvoretsky1, N.N. Mikhailov1, M.V. Yakushev1, I.V. Sabinina1, V.G. Remesnik1, D.G. Ikusov1, I.N. Uzhakov1, G.Yu. Sidorov1, V.D. Kuzmin1, S.V. Rihlicky1, V.A. Shvets1, A.S. Mardezov1, E.V. Spesivcev1, A.K. Gutakovskii1, A.V. Latyshev1,2 1 RZHANOV INSTITUTE OF SEMICONDUCTOR PHYSICS OF THE SIBERIAN BRANCHOF THE RUSSIAN ACADEMY OF SCIENCES, NOVOSIBIRSK, RUSSIA 2 NOVOSIBIRSK STATE UNIVERSITY, NOVOSIBIRSK, RUSSIA Infrared imaging systems are required for applications in medicine, agriculture, the chemical industry, ferrous and nonferrous metals metallurgy, the fuel industry, and other areas of the economy. Due to high quantum efficiency, tunable absorption wavelength, and a wide oper- ating temperature range, HgCdTe (mercury cadmium telluride, MCT)-based infrared focal plane arrays are a good choice for the fabrication of high-performance infrared imaging sys- tems. Creating arrays and matrices of photodetectors with a large number of elements imposes stringent requirements for narrow-band MCT. What is wanted is a large area plate MCT with highly uniform properties and low cost. MCT technology over the past 20 years has evolved from the production of relatively small (diameter ,10 mm) volume bars to large (up to 150 mm in diameter) epitaxial layers on alternative substrates. The electrical properties of solid solutions MCT are largely deter- mined by the intrinsic point defects and residual impurities associated with the growing method. MCT is characterized by a high rate of diffusion of point defects. Therefore, a low growth temperature is need. -
Solid State Recrystallization of II-VI Semiconductors : Application to Cadmium Telluride, Cadmium Selenide and Zinc Selenide R
Solid State Recrystallization of II-VI Semiconductors : Application to Cadmium Telluride, Cadmium Selenide and Zinc Selenide R. Triboulet, J. Ndap, A. El Mokri, A. Tromson Carli, A. Zozime To cite this version: R. Triboulet, J. Ndap, A. El Mokri, A. Tromson Carli, A. Zozime. Solid State Recrystallization of II-VI Semiconductors : Application to Cadmium Telluride, Cadmium Selenide and Zinc Selenide. J. Phys. IV, 1995, 05 (C3), pp.C3-141-C3-149. 10.1051/jp4:1995312. jpa-00253678 HAL Id: jpa-00253678 https://hal.archives-ouvertes.fr/jpa-00253678 Submitted on 1 Jan 1995 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. JOURNAL DE PHYSIQUE IV Colloque C3, supplCment au Journal de Physique 111, Volume 5, avril 1995 Solid State Recrystallization of 11-VI Semiconductors: Application to Cadmium Telluride, Cadmium Selenide and Zinc Selenide R. Triboulet, 3.0. Ndap, A. El Mokri, A. Tromson Carli and A. Zozime CNRS, Laboratoire de Physique des Solides de Bellevue, 1 place Aristide Briand, F 92195 Meudon cedex, France Abstract : Solid state recrystallization (SSR) has been very rarely used for semiconductors. It has nevertheless been proposed, and industrially used, for the single crystal growth of cadmium mercury telluride according to a quench-anneal process. -
ECO PASSPORT by OEKO-TEX®
Edition 01.2020 Restricted Substance List: ECO PASSPORT by OEKO-TEX® OEKO-TEX® – International Association for Research and Testing in the Field of Textile and Leather Ecology. OEKO-TEX® Association | Genferstrasse 23 | CH-8002 Zurich Phone 41 44 501 26 00 | [email protected] | www.oeko-tex.com Restricted Substance List: ECO PASSPORT by OEKO-TEX® This document is an extensive list of all substances which are restricted for the ECO PASSPORT by OEKO-TEX®. Each substance is listed through CAS-number and chemical name as well as through its toxicological properties and other restricted substances lists and literature where they can be found. Below is a legend for the different toxicity abbreviation and a numbering of the different restricted substances lists and literature. Toxicity Abbreviations AA Acute Aquatic Toxicity IrS Skin Irritation AT Acute Mammalian Toxicity M Mutagenicity and Genotoxicity B Bioaccumulation N Neurotoxicity C Carcinogenicity P Persistence CA Chronic Aquatic Toxicity R Reproductive Toxicity D Developmental ToxicitY Rx Reactivity E Endocrine Activity SnS Skin Sensitization F Flammability SnR Respiratory Sensitization IrE Eye Irritation ST Systemic/Organ Toxicity 05.11.20 Edition 01.2020 2|82 Restricted Substance List: ECO PASSPORT by OEKO-TEX® List Numbering American Apparel & Footwear Association Restricted Subs- 1 30 MAK Mutagen tance List 2 AOEC - Asthmagens 31 MAK Pregnancy Risk 3 Boyes - Neurotoxicants 32 MAK Sensitizing 4 CA DTSC Candidate 33 OR DEQ - Priority Persistent Pollutants 5 CA Prop 65 34 OSPAR - Priority -
Mercury Transformation and Release from Contaminated Soil Following Perturbations in Solution Chemistry and Application of Polysulfide
Mercury Transformation and Release from Contaminated Soil Following Perturbations in Solution Chemistry and Application of Polysulfide by Matthew Corriveau A thesis Presented to the University of Waterloo in fulfillment of the thesis requirement for the degree of Master of Science in Earth Sciences Waterloo, Ontario, Canada, 2018 © Matthew Corriveau 2018 Author’s Declaration I hereby declare that I am the sole author of this thesis. This is a true copy of this thesis, including any final required revisions, as accepted by my examiners. I understand that this thesis may be made electronically available to the public. ii Abstract Mercury (Hg) is a contaminant of concern due to the very high toxicity and bioaccumulating nature of organic Hg and the persistent leaching of Hg to water bodies from contaminated soils and sediments. The deleterious properties of Hg pose challenges for remediation as point source contamination can expand over time to affect much wider areas. Saturated, flow-through column experiments were conducted with riverbank sediment and floodplain soil collected from a contaminated reach of the South River near Waynesboro, VA. In one experiment, the composition of input solutions was varied to observe relationships among mobilized Hg, aqueous parameters and effluent constituents and identify dominant mechanisms and controls on Hg transport. Effluent Hg concentrations increased and remained elevated when a higher pH and alkalinity solution was input to the column. Effluent Hg and DOC concentrations were generally positively correlated. Increased effluent Hg concentrations broadly coincided with increased effluent iron (Fe) and manganese (Mn) concentrations and redox (Eh) minima. The lowest effluent Hg concentrations were observed upon decreasing the input solution pH from ~8.7 to ~6, whereas an increase in input pH from ~6 to ~12 coincided with the highest effluent Hg concentrations along with spikes in effluent Fe, Mn and DOC concentrations. -
Survey of Mercury and Mercury Compounds
Survey of mercury and mercury compounds Part of the LOUS-review Environmental Project No. 1544, 2014 Title: Authors and contributors: Survey of mercury and mercury compounds Jakob Maag Jesper Kjølholt Sonja Hagen Mikkelsen Christian Nyander Jeppesen Anna Juliana Clausen and Mie Ostenfeldt COWI A/S, Denmark Published by: The Danish Environmental Protection Agency Strandgade 29 1401 Copenhagen K Denmark www.mst.dk/english Year: ISBN no. 2014 978-87-93026-98-8 Disclaimer: When the occasion arises, the Danish Environmental Protection Agency will publish reports and papers concerning research and development projects within the environmental sector, financed by study grants provided by the Danish Environmental Protection Agency. It should be noted that such publications do not necessarily reflect the position or opinion of the Danish Environmental Protection Agency. However, publication does indicate that, in the opinion of the Danish Environmental Protection Agency, the content represents an important contribution to the debate surrounding Danish environmental policy. While the information provided in this report is believed to be accurate, the Danish Environmental Protection Agency disclaims any responsibility for possible inaccuracies or omissions and consequences that may flow from them. Neither the Danish Environmental Protection Agency nor COWI or any individual involved in the preparation of this publication shall be liable for any injury, loss, damage or prejudice of any kind that may be caused by persons who have acted based on their understanding of the information contained in this publication. Sources must be acknowledged. 2 Survey of mercury and mercury compounds Contents Preface ...................................................................................................................... 5 Summary and conclusions ......................................................................................... 7 Sammenfatning og konklusion ................................................................................ 14 1.