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Evaluation of dispersed alkaline substrate and diffusive exchange system technologies for the passive treatment of copper mining acid drainage
(2020-03-01)
The study evaluates the performance of the novel ADES (alkaline diffusive exchange System), SDES (sulfidogenic diffusive exchange system) and DAS (Dispersed Alkaline Substrate) technologies for the passive treatment of ...
Exploring sulfate and metals removal from Andean acid mine drainage using CaCO3-rich residues from agri-food industries and witherite (BaCO3)
(Elsevier, 2020)
Dispersed alkaline substrate (DAS) is a matured passive remediation technology that has shown very high performances treating acid mine drainages (AMD). However, this remediation approach needs to improve its environmental ...
A geochemical approach to the restoration plans for the Odiel River basin (SW Spain), a watershed deeply polluted by acid mine drainage
(Springer Verlag, 2017)
© 2016, Springer-Verlag Berlin Heidelberg. The Odiel River Basin (SW Spain) drains the central part of the Iberian Pyrite Belt (IPB), a world-class example of sulfide mining district and concomitantly of acid mine drainage ...
The cobalt content effect on the electrochemical behavior of nickel hydroxide electrodes
(Pergamon-Elsevier Science Ltd, 2012-07)
In this paper, the study of nickel hydroxide porous electrodes containing different concentrations of cobalt as additive (2-10%), polytetrafluoroethylene (PTFE) as binder material and prepared by chemical impregnation on ...
Materiales reactivos locales para un reactivo tipo DAS (Dispersed Alkaline Substrate) a utilizar en sistemas de tratamiento pasivo en Chile
(Universidad de Chile, 2017)
La presencia de aguas contaminadas es un problema medioambiental que toma cada vez más importancia en el mundo globalizado. En particular, la industria minera interviene el medioambiente de formas diversas, siendo una de ...
Modificação da superfície da liga Ti 7,5Mo utilizando tratamento alcalino e imobilização de prata
(Universidade Estadual Paulista (Unesp), 2021-12-21)
O titânio e suas ligas destacam-se como biomateriais devido estabilidade química e integração com o osso circundante. As superfícies nanoestruturadas se assemelham à estrutura da matriz óssea, favorecendo a adesão celular. ...
Highly efficient hybrid Ni/nitrogenated-graphene electrocatalysts for hydrogen evolution reaction
(American Chemical Society, 2019-01)
Two nickel/nitrogenated graphene hybrid electrodes (Ni-NrGONH3 and Ni-NrGOAPTES) were synthesized, and their catalytic activity with respect to the hydrogen evolution reaction (HER) in alkaline media was analyzed. Incorporation ...
Limnologia de um sistema integrado tanques-rede e viveiro em fazenda de aquicultura
(2016-01-01)
Aim: Examining whether small-scale tilapia cages have a potential influence on water abiotic parameters in a pond of a flow-through system. Methods: Tilapia cages were installed near the pond water outlet. Samples for ...