Scientific Research Publishing

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53823#.VNR6LCzQrzE Author(s)   Paata Nikoleishvili * , Gigla Tsurtsumia , Valentina Kveselava , Giorgi Gorelishvili , Rusudan Kurtanidze , Nana Koiava , Izolda Kakhniashvili , Davit Sharabidze Affiliation(s) Rafael Agladze Institute of Inorganic Chemistry, Electrochemistry of Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia . ABSTRACT It was established that application of bipolar membrane in a direct borohydride fuel cell (DBFC) with <span "="">H 2 O 2 <span "="">co-generation enabled to keep constant pH in catholyte within 2.5 - 3.2 limits, which allowed us to carry out treatment of water polluted by organic compounds in fuel cell catholyte. Treatment of water was carried out by electro-Fenton and photo-electro-Fenton methods. With the view of efficiency, photo-electro-Fenton method of treatment was the most efficient, ...

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53023#.VLR-j8nQrzE Author(s)   Abdellatif El Maghraoui * , Abdelaziz Zerouale , Mustapha Ijjaali Affiliation(s) Laboratory of Chemistry of Condensed Mater, Faculty of Sciences and Technology, Sidi Mohammed Ben Abdellah University, Fez, Morocco . ABSTRACT The iron compounds in the oxidation state (VI) have the specific advantage of being powerful oxidants and bactericides. This feature explains their particular interest in the treatment of water. The aim of this work is to prepare Na 2 FeO 4 stable at ambient in order to optimize the key parameters influencing the performance of the oxidation of iron (II) to iron (VI), as well as to monitor its degradation over time. The synthesis of this phase has been carried out by using the dry reaction Na 2 O 2 with Fe 2 O 3 with a temperature of 700°C for a reaction time of 13 hours with a Na/Fe ratio of 4 to mak...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50605#.VEdC31fHRK0 Author(s)    F. Brouers Affiliation(s) Department of Chemical Engineering, Liege University, Liege, Belgium . ABSTRACT We discuss the Brouers-Sotolongo fractal (BSf) kinetics model. This formalism interpolates between the first and second order kinetics. But more importantly, it introduces not only a fractional order n but also a fractal time parameter a which characterizes the time variation of the rate constant. This exponent appears in non-exponential relaxation and complex reaction models as demonstrated by the extended use of the Weibull and Hill kinetics which are the two most popular approximation...