Technetium Sulfide: Fundamental Chemistry for Waste Storage Form's Application

نویسندگان

  • Maryline Ghislaine Ferrier
  • Maryline Ferrier
چکیده

..................................................................................................................... iii ACKNOWLEDGMENTS .................................................................................................... v TABLE OF CONTENTS..................................................................................................... vi LIST OF TABLES .............................................................................................................. xi LIST OF FIGURES ......................................................................................................... xvii CHAPTER 1: INTRODUCTION ......................................................................................... 1 Background....................................................................................................... 1 1.1 Technetium background .................................................................................. 5 1.2 Sulfur Chemistry ............................................................................................... 8 1.3 Transition metal sulfides ................................................................................ 12 1.4 Tetrathio-metallates ............................................................................... 13 1.4.1 d configuration for transition metal sulfides ......................................... 14 1.4.2 Disulfides ................................................................................................. 15 1.4.3 Technetium sulfides ................................................................................ 17 1.4.4 Transition metals comparison ................................................................. 19 1.4.5 Redox potential for manganese, technetium and rhenium .......................... 21 1.5 CHAPTER 2: Materials and Methods ........................................................................... 23

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Impact of Storage Conditions on the Stability of Volatile Sulfur Compounds in Sampling Bags.

Odorous emissions from agricultural and waste management operations can cause annoyance to local populations. Volatile sulfur compounds (VSCs) are dominant odorants that are often lost during collection using sample bags. The degree of VSC losses depends on factors such as storage time, bag materials, temperature, sample relative humidity (RH), light exposure, and the presence of volatile organ...

متن کامل

Synthesis and Properties of Metallic Technetium and Technetium-Zirconium Alloys as Transmutation Target and Radioactive waste storage form in the UREX+1 Process

In the application of UREX+1 process, technetium will be separated together with uranium and iodine within the first process step. After the separation of uranium, technetium and iodine must be immobilized by their incorporation in a suitable waste storage-form. Based on recent activities within the AFCI community, a potential candidate as waste storage form to immobilize technetium is to alloy...

متن کامل

Behavior of technetium in nuclear waste vitrification processes

Nearly 100 tests were performed with prototypical melters and off-gas system components to investigate the extents to which technetium is incorporated into the glass melt, partitioned to the off-gas stream, and captured by the off-gas treatment system components during waste vitrification. The tests employed several simulants, spiked with 99mTc and Re (a potential surrogate), of the low activit...

متن کامل

Modeling hydrogen sulfide emissions across the gas– liquid interface of an anaerobic swine waste treatment storage system

Hydrogen sulfide (H2S) is a colorless gas emitted during decomposition of hog manure that produces an offensive ‘‘rotten egg’’ smell and is considered a toxic manure gas. In the southeastern United States, anaerobic waste treatment lagoons are widely used to store and treat hog excreta at commercial hog farms. Hydrogen sulfide is produced as manure decomposes anaerobically, resulting from the m...

متن کامل

Evolution of technetium speciation in reducing grout.

Cementitious waste forms (CWFs) are an important component of the strategy to stabilize nuclear waste resulting from plutonium production by the U. S. Department of Energy. Technetium (99Tc) is an abundant fission product of particular concern in CWFs because of the high solubility and mobility of Tc(VII), pertechnetate (TcO4-), the stable form of technetium in aerobic environments. CWFs can mo...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2017