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Thermodynamics Approach in the Adsorption of Heavy Metals

نهج الديناميكا الحرارية في امتزاز المعادن الثقيلة
Authors: Abdelhafeez M. A. Mohammed;

Thermodynamics Approach in the Adsorption of Heavy Metals

Abstract

L'adsorption est le terme utilisé pour décrire les matériaux métalliques ou organiques se fixant à un adsorbant solide dans une couverture faible, moyenne et élevée, comme le montre la figure 1. Dans lequel, le solide est appelé adsorbant, les ions métalliques étant adsorbés appelés adsorbants, et tout en étant liés aux surfaces solides appelées adsorbats. En principe, l'adsorption peut se produire à n'importe quelle interface de fluide solide, par exemple : (i) interface gaz-solide (comme dans l'adsorption d'un CO2 sur du charbon actif) ; et (ii) interface liquide-solide (comme dans l'adsorption d'un polluant organique ou d'ions de métaux lourds sur du charbon actif).

Adsorción es el término que se utiliza para describir los materiales metálicos u orgánicos que se adhieren a un adsorbente sólido en baja, media y alta cobertura como se muestra en la Figura 1. En donde, el sólido se llama adsorbente, los iones metálicos que se adsorben se llaman adsorbentes, y mientras están unidos a las superficies sólidas se llaman adsorbatos. En principio, la adsorción puede ocurrir en cualquier interfaz de fluido sólido, por ejemplo: (i) interfaz gas-sólido (como en la adsorción de un CO2 en carbón activado); y (ii) interfaz líquido-sólido (como en la adsorción de un contaminante de iones orgánicos o de metales pesados en carbón activado).

Adsorption is the term that used to describe the metallic or organic materials attaching to an solid adsorbent in low, medium and high coverage as shown in Figure 1. Wherein, the solid is called adsorbent, the metal ions to being adsorbed called adsorptive, and while bounded to the solid surfaces called adsorbate. In principle adsorption can occur at any solid fluid interface, for examples: (i) gas-solid interface (as in the adsorption of a CO2 on activated carbon); and (ii) liquid-solid interface (as in the adsorption of an organic or heavy metal ions pollutant on activated carbon).

الامتزاز هو المصطلح المستخدم لوصف المواد المعدنية أو العضوية المرتبطة بمادة مازة صلبة ذات تغطية منخفضة ومتوسطة وعالية كما هو موضح في الشكل 1. حيث تسمى المادة الصلبة بالامتزاز، وتسمى الأيونات المعدنية التي يتم امتزازها بالامتزاز، وأثناء ارتباطها بالأسطح الصلبة تسمى الامتزاز. يمكن أن يحدث الامتزاز من حيث المبدأ في أي واجهة سائلة صلبة، على سبيل المثال: (1) واجهة غازية صلبة (كما هو الحال في امتزاز ثاني أكسيد الكربون على الكربون المنشط )؛ و (2) واجهة سائلة صلبة (كما هو الحال في امتزاز أيونات أيونات عضوية أو معدنية ثقيلة ملوثة على الكربون المنشط).

Keywords

Mechanical Engineering, Physics, Adsorption of Water Contaminants, FOS: Mechanical engineering, Materials science, Chemistry, Engineering, Heavy metals, Physical chemistry, Environmental Science, Physical Sciences, Biosorption, Environmental chemistry, Thermodynamics, Theory and Simulations of Polyelectrolytes in Solutions, Adsorption, Physical and Theoretical Chemistry, Battery Recycling and Rare Earth Recovery, Water Science and Technology

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    popularity
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    influence
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    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
20
Top 10%
Average
Average
hybrid