Categorias: Todos - biodisponibilidad - biotransformación - medio ambiente

por williams Nevado 3 anos atrás

196

Impactos de las industrias en el medio ambiente

Las industrias tienen un impacto significativo en el medio ambiente, especialmente en la gestión de metales pesados y contaminantes. La biodisponibilidad y solubilización son técnicas empleadas en la minería para recuperar metales de materiales contaminados, utilizando acción microbiana.

Impactos de las industrias en el medio ambiente

La toxicidad de los metales pesados es alta. Su acción sobre los seres vivos ocurre del bloqueo de las actividades biológicas, es decir, la inactivación enzimática, por formación entre metal y los grupos-SH de las proteína. los metales pesados deben encontrarse biodisponibles

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Impactos de las industrias en el medio ambiente

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BIODISPONIBILIDAD

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Quimiosorción mediada por microorganismos

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Dentro de este término se describir aquella clase de reacciones microorganismos biomineralizan un metal, formando un depósito primario. Este depósito primario funciona como núcleo de cristalización, con la subsecuente deposición del metal de
Biotransformación

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es un proceso que involucra un cambio químico sobre el metal pesado, Está transformación biológica puede dar resultado compuestos poco solubles en agua o compuestos volátiles
Biomineralización

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microorganismos capaces precipitar metales y radionúclidos mediante mecanismo de resistencia codificado en plásmidos el funcionamiento de una bomba que expulsa el metal tóxico presente citoplasma hacia el exterior celular contracorriente flujo de H+. Esto produce alcalinización sobre la superficie celular externa y por lo tanto la precipitación del metal pesado.
biosorción

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stubbornoverly critical, can't accept authoritytoo demandingtoo talkativetoo quiettoo sensitivelacking assertivenesslacking social tact
es un fenómeno estudiado en la biorremediación de diversos metales pesado, utilizados como biosorbente, aislados de ecosistemas contaminados, retienen los metales pesados a intervalos, dé tiempo relativamente cortos al entrar en contacto con soluciones de dichos metales. Este minimiza los costos en un proceso de remediación, ya que no requiere al agregado de nutrientes al sistema, al no requerir un metabolismo microbiano activo.

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ambitiousgood communicatorfocuseddeterminedadaptablecuriousoptimisthard workerhonestpoliteco-operativeself motivatedenthusiasticgood leaderstrategic thinkerquick learnerflexiblegood problem solver
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Este mecanismo de solubilización es utilizado en la industria minera acción microbiana, también utilizado recuperando metales a partir de materiales solidos contaminados, resultantes de quemar desechos, sedimentos acuáticos, etc.

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