The Redlich–Peterson isotherm for aqueous phase adsorption: Pitfalls in data analysis and interpretation

Chu, Khim Hoong; Hashim, Mohd Ali; Santos, Yannice Tatiane da Costa; Debord, Jean; Harel, Michel; Bollinger, Jean-Claude

doi:10.1016/j.ces.2023.119573

Cited by 13 publications

(1 citation statement)

References 106 publications

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“…The Freundlich isotherm is a useful tool for describing adsorption in more complex and heterogeneous systems than those described by the Langmuir isotherm. These isotherms are the most used in adsorption treatments with IMs as they provide crucial information about the equilibrium between the liquid phase and the adsorbent surface during an adsorption process [ 89 , 140 ]. In addition to the Langmuir and Freundlich isotherms, other models, such as the Redlich–Peterson, Dubinin–Radushkevich, Sips, Toth, and Temkin isotherms, have been used (see Table 4 ).…”

Section: Degradation Kinetics Of Contaminants Using Na-algmentioning

confidence: 99%

A Review of the Strategic Use of Sodium Alginate Polymer in the Immobilization of Microorganisms for Water Recycling

Bustos-Terrones

2024

Polymers

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In the quest for advanced and environmentally friendly solutions to address challenges in the field of wastewater treatment, the use of polymers such as sodium alginate (Na-Alg) in combination with immobilized microorganisms (IMs) stands out as a promising strategy. This study assesses the potential of Na-Alg in immobilizing microorganisms for wastewater treatment, emphasizing its effectiveness and relevance in environmental preservation through the use of IMs. Advances in IMs are examined, and the interactions between these microorganisms and Na-Alg as the immobilization support are highlighted. Additionally, models for studying the kinetic degradation of contaminants and the importance of oxygen supply to IMs are detailed. The combination of Na-Alg with IMs shows promise in the context of improving water quality, preserving ecological balance, and addressing climate change, but further research is required to overcome the identified challenges. Additional areas to explore are discussed, which are expected to contribute to the innovation of relevant systems.

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Section: Degradation Kinetics Of Contaminants Using Na-algmentioning

confidence: 99%

A Review of the Strategic Use of Sodium Alginate Polymer in the Immobilization of Microorganisms for Water Recycling

Bustos-Terrones

2024

Polymers

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Iron‐based metal–organic frameworks for rapid and effective phosphorus removal from eutrophic lake water

Xie,

Zhou,

Qiu

et al. 2024

Applied Organom Chemis

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Efficient removal of phosphorus from water is an effective means to control lake eutrophication. Two kinds of efficient metal–organic frameworks (MOFs), MIL‐53(Fe) and MIL‐100(Fe), were prepared. These MIL MOFs were used to remove phosphorus from eutrophication lake water. The factors affecting phosphorus adsorption were systematically studied, including adsorption time, adsorption dose, and coexisting ions. The two adsorbents exhibited excellent phosphorus adsorption performance. Within 30 min after adsorption, the phosphorus concentration decreased rapidly from the initial 0.60 to 0.083 mg·L−1 for MIL‐53(Fe) and 0.052 mg·L−1 for MIL‐100(Fe). The maximum capture capacity of MIL‐100(Fe) is 106.99 mg·P·g−1, while the maximum capture capacity of MIL‐53(Fe) is 103.17 mg·P·g−1. In addition, iron‐based MOFs also show superior selectivity to phosphate compared with other anions (including nitrate, sulfate, bicarbonate, and carbonate). After adsorption, both adsorbents can be effectively regenerated using NaCl solution, and both materials can be reused four times. After a series of characterization, it was found that the main mechanism for phosphorus adsorption is electrostatic interaction and coordination. Specifically, these two materials can efficiently and rapidly adsorb phosphorus in eutrophic water and exhibit superior removal efficiency. This shows that MIL‐100(Fe) and MIL‐53(Fe) have great application potential in removing excess phosphorus.

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Overview of integrated electrocoagulation-adsorption strategies for the removal of heavy metal pollutants from wastewater

Twizerimana,

2024

Discov Chem Eng

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Removal of heavy metal pollutants from wastewater is critical for preserving a clean environmental setting and guaranteeing universal well-being. Physical, chemical, and biological approaches have been devised for the removal of heavy metals from various wastewater sources. Methods used include electrocoagulation (EC) and adsorption (AD). Although both methods are reported to be efficiently applied in wastewater treatment, the EC method is impeded by high energy consumption, particularly when treating concentrated effluents, as it demands substantial current for coagulant formation. Alternatively, the AD process is hindered by adsorbent saturation and the competitive effects of specific chemicals. Here, we only found limited studies on integrated EC-AD combined process, where the AD and EC were either used in separate or combined system vessels to augment the removal efficiency of heavy metal ions from wastewater or synthetic solutions. It is imperative to conduct more studies on synergistic approaches that combine adsorption with other wastewater treatment methods to address current limits and optimize removal processes. The review identified current density, pH, time, temperature, and adsorbent dosages as factors influencing the EC-AD process in heavy in the removal of heavy metals from wastewater. Although electrocoagulation combined with adsorption has been explored in several studies which have been confined to synthetic effluents, limiting their relevance to real-world scenarios. Therefore, this review proposes for development and design of EC-AD combined technologies to exploit their strengths and minimize associated limitations. Overall, the combined strategies proved more effective and economical compared to individual adsorption and electrocoagulation methods.

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The Redlich–Peterson isotherm for aqueous phase adsorption: Pitfalls in data analysis and interpretation

Cited by 13 publications

References 106 publications

A Review of the Strategic Use of Sodium Alginate Polymer in the Immobilization of Microorganisms for Water Recycling

A Review of the Strategic Use of Sodium Alginate Polymer in the Immobilization of Microorganisms for Water Recycling

Iron‐based metal–organic frameworks for rapid and effective phosphorus removal from eutrophic lake water

Overview of integrated electrocoagulation-adsorption strategies for the removal of heavy metal pollutants from wastewater

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