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liant pour la stabilisation des déchets arséniés
binder for stabilising arsenic containing wastes
Última atualização: 2014-11-25
Frequência de uso: 3
Qualidade:
etude du traitement de déchets arséniés en vue de la production de leds.
study of arsenized waste recycling to produce leds
Última atualização: 2018-02-13
Frequência de uso: 1
Qualidade:
procÉdÉ de traitement biologique des dÉchets arsÉniÉs issus du traitement d' effluents acides.
method for biologically treating arsenic waste from the treatment of acid effluents
Última atualização: 2011-07-27
Frequência de uso: 1
Qualidade:
l'invention concerne également un procédé de stabilisation des déchets arséniés, qui met en oeuvre ledit liant.
the arsenical waste is first mixed with an iron salt, and then the binder is added. the iron salt addition is preferably a mixture of two salts selected from iron, preferably ferrous, sulfate, iron chloride or iron nitrate.
Última atualização: 2014-12-03
Frequência de uso: 1
Qualidade:
l'invention concerne un liant hydraulique à base de plâtre ou d'anhydrite pour la stabilisation des déchets arséniés.
an hydraulic binder including gypsum, anhydrite, or their mixture is used for stabilizing arsenical wastes. an independent claim is included for a method of stabilizing arsenical wastes by using the hydraulic binder.
Última atualização: 2014-12-03
Frequência de uso: 1
Qualidade:
procédé de traitement biologique des déchets arséniés issus du traitement d' effluents acides. la présente invention concerne notamment un procédé de traitement des effluents acides contenant des déchets arséniés. notamment, un procédé pour oxyder les arsénites, compris dans un effluent acide, en arséniates comprenant : une étape (i) consistant à ajouter un réactif basique dans ledit effluent afin d' amener son ph à une valeur supérieure ou égale à 2, et - une étape (ii) consistant à ajouter des bactéries oxydantes dans l' effluent obtenu après l'étape (i).
the invention relates to a method for biologically treating arsenic waste from the treatment of acid effluents. the present invention relates, in particular, to a method for treating acid effluents containing arsenic waste. in particular, a method for oxidising the arsenites contained in an acid effluent into arsenates, including: a step (i) consisting of adding a basic reagent to said effluent in order to change the ph thereof to a value greater than or equal to 2, and a step (ii) consisting of adding fermenting bacteria to the effluent resulting after step (i).
Última atualização: 2011-07-27
Frequência de uso: 1
Qualidade: