![]() ![]() (2006) that links the redox potential (E clay ) to the the Fe(II)/Fe tot ratio in the structure (m rel ), the pH and the sodium concentration in solution: equation 1. These electrodes were used to verify the validity of the model of Favre et al. The clay fraction of a Callovian-Oxfordian argillite sample originating from the same level than ANDRA underground research laboratory was used after pre-treatment to remove organic matter and accessory minerals such as pyrite that could influence redox potential measurements. ![]() Clay modified electrodes were specifically designed to probe Fe( III)/Fe(II) redox potential in the structure of clay minerals. The present study aims at investigating the reactivity of the Fe( III)/Fe(II) redox couple in the structure of clay minerals using different investigation methods: electrochemistry and O 2 reduction kinetic experiments. However, there is little information on the reactivity of the different reservoirs of redox constituents in this type of complex material. A representative redox potential of clay formation such as Callovian- Oxfordian (COx) can be derived from thermodynamic calculations considering equilibrium between observed redox phases such as pyrite and siderite. As a consequence reducing conditions are considered of strategic importance for the confinement properties of a clayey formation towards nuclear waste. Redox is one of the main factors affecting the migration of redox-sensitive radionuclides. Ignatiadis, Ioannis Greneche, Jean-Marc Charlet, LaurentÄocument available in extended abstract form only. ![]() Tournassat, Christophe Chainet, Fabien Betelu, Stephanie Hadi, Jebril Gaucher, Eric C. International Nuclear Information System (INIS) Probing Fe ( III)/Fe (II) redox potential in a clayey material The methods of data collection were using in-depth interview and observation. ![]() Method: This study was a qualitative study. Pertamina (Persero) RU III Plaju in 2011. The aim of this study was to analyze the controlling of hazards potential in CDU III PT. Matariani, Ade Hasyim, Hamzah Faisya, Achmad FickryÄ«ackground: Activities in CDU III are very risk to any hazards potential because of that hazards potential is much needed in controlling the hazards potential to decrease the accidents and occupational diseases. Pertamina (Persero) Refinery Unit III Plaju Tahun 2011 Control Analysis of Hazards Potential in Crude Distiller Unit III PT. ![]()
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