Bioremediation strategies for chromium removal: Current research, scale-up approach and future perspectives

Challenges of Microbial Fuel Cell Architecture on Heavy Metal Recovery and Removal From Wastewater

“…Bioremediation is recognized as profitable, eco-friendly, non-invasive, cheaper than other conventional methods, and it is an enduring solution that can end with the degradation or transformation of environmental contaminants into nontoxic or less toxic forms. It can use microorganisms/enzymes to clean up metalcontaminated wastewater while maintaining regular metabolism (Fernandez et al, 2018). Advantageous characteristics that include small genome size, short replication times, relative simplicity of the cell, rapid evolution, and adaptation to the new environmental conditions made microorganisms the key players in bioremediation technologies (Dvořák et al, 2017;Mary et al, 2018).…”

“…In general, bioremediation processes include bioaccumulation, biosorption, biotransformation and biomineralization using microbes. Amongst these, biosorption is a promising technology that presents major over conventional treatment methods such as low operational cost; simplicity; high efficiency; minimization of chemical and biological sludge; and the possibility of metal recovery (Fernandez et al, 2018).…”

Removal and enrichment of Cr(VI) from aqueous solutions by lotus seed pods

“…Physical remediation, chemical remediation, and bioremediation have been used to remove Cr(VI) from wastewater (Fernández, Viñarta, Bernal, Cruz, & Figueroa, ; Golder, Chanda, Samanta, & Ray, ; Mohanty et al, ; Muneer, Rehman, Shakoori, & Shakoori, ; Selen, Özer, & Özer, ; Sun et al, , ). However, most of these methods are limited because they have some disadvantages such as high cost and difficulty in implementation.…”

REMOCIÓN DE CROMO TRIVALENTE EN AGUAS RESIDUALES DE CURTIEMBRES MEDIANTE UN PROCESO BIÓTICO-ABIÓTICO BASADO EN EL USO DE Yarrowia lipolytica Y Candida fluviatilis

“…Se plantea entonces, el uso de la biorremediación microbiana, en la que se aprovecha la capacidad de los microrganismos nativos y sus productos para el tratamiento natural de contaminantes como el cromo (Cañizares-Villanueva 2000). La tolerancia microbiana a los metales se basa en mecanismos relacionados con estructuras celulares o de resistencia específicos, que permiten regular los niveles intracelulares, mediante procesos de expulsión, atrapamiento intra y extracelular y reacciones de oxidorreducción, principalmente (Sharma et al 2011, Fernández et al 2018, Huang et al 2018. Entre dichos mecanismos está la bioprecipitación, mediante la cual se forman complejos entre el metal y compuestos de sulfuro, carbonatos e hidróxidos (Cabrera 2005).…”