Regeneration of Spent Activated Carbon from Wastewater Treatment Plant Application

Mn, Nasruddin; Fahmi, Muhammad Ridwan; Abidin, Che Zulzikrami Azner; Yen, Tan Sze

doi:10.1088/1742-6596/1116/3/032022

Cited by 15 publications

(11 citation statements)

References 14 publications

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“…Regeneration of spent AC was considered in scenario AC Rg. Regeneration of AC refers to the restoration of its available surface area and its adsorption sites (Nasruddin et al, 2018). Regeneration can significantly improve the lifetime of adsorption materials and it is in general cheaper to regenerate AC than to replace it (Álvarez et al, 2004).…”

Section: Activated Carbon End-of-life Scenarios (Ac I Ac L Ac Rg Amentioning

confidence: 99%

“…solvents (Goncharuk et al, 2007;Li et al, 2015). The main advantages of chemical regeneration are the possibility to extract valuable substances, and a low loss of weight of the adsorbent (Nasruddin et al, 2018). However, chemical regeneration to recover valuable products from AC usually requires additional treatment of the extraction liquid (Rinkus et al, 1997).…”

Section: Activated Carbon End-of-life Scenarios (Ac I Ac L Ac Rg Amentioning

confidence: 99%

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Comparative environmental assessment of end-of-life carbonaceous water treatment adsorbents

Kozyatnyk

Yacout

Caneghem

et al. 2020

Bioresource Technology

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Section: Activated Carbon End-of-life Scenarios (Ac I Ac L Ac Rg Amentioning

confidence: 99%

Section: Activated Carbon End-of-life Scenarios (Ac I Ac L Ac Rg Amentioning

confidence: 99%

Comparative environmental assessment of end-of-life carbonaceous water treatment adsorbents

Kozyatnyk

Yacout

Caneghem

et al. 2020

Bioresource Technology

View full text Add to dashboard Cite

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“…Ghasemzadeh et al [4] used hydrofluoric acid to regenerate dye-saturated active carbon and were able to achieve significant regeneration. To regenerate spent activated carbon, Nasiruddin et al [11] used HCl and hot water. Marion-Peacok et al [12] demonstrated that chemically regenerated active carbon outperformed thermally regenerated active carbon in a water cleaning system.…”

Section: Introductionmentioning

confidence: 99%

Chemical Regeneration of A Dye-Laden Activated Carbon: Optimization via The Box-Behnken Experimental Design

Jasper

Onwuka

Agbaji

2022

J. Multidiscip. Appl. Nat. Sci.

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Activated carbon is widely used as an adsorbent to remove numerous pollutants from water and wastewater. The cost-effectiveness of an adsorbent depends upon its ability to be reused. This study focuses on regenerating Millettia thonningii seed pods' activated carbon (MAC) saturated with Methylene Blue (MB) using acetic acid as a regenerating solvent and exploring its potential to be reused. The effects of the variables such as, the concentration of the regenerating solvent, contact time, and volume of regenerating solvent on the regeneration process were ascertained using the Box-Behnken experimental design, which is a sub-set of Response Surface Methodology. The regeneration process was evaluated based on the desorption capacity of the active carbon. Scanning Electron Microscopy (SEM) and Fourier Transform Infrared spectroscopy (FTIR) was used to characterize the surface of the saturated active carbon before and after regeneration. Results revealed that the concentration of the regenerating solvent had the most significant synergistic effect on the regeneration process. The optimum conditions for the maximum regeneration of the spent activated carbon within the range of the variables studied were found to be: 8M acetic acid, 100 min, and 40 mL of acetic acid. The regenerated and pristine MAC when reused to adsorb fresh MB solutions (50 ml of 10mg/L MB: 0.2g adsorbent) had an adsorption capacity of 2.1912mg/g and 2.0977mg/g for MB respectively. Hence, the regenerated carbon outperformed the pristine active carbon. It could therefore be explored further as a recyclable adsorbent for wastewater treatment.

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“…Activated carbons (ACs) have been used in pollution remediation in both liquid and gas phase effluent from industries [1]. The pollutants are usually adsorbed onto AC surfaces before being released into the atmosphere or water, which prevents environmental pollution [1][2][3]. ACs are usually disposed in landfills or thermally regenerated when they lose their adsorption capacity [4,5].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Capacitance of Activated Carbons Regenerated using Thermal and Chemical Activation

Park

Lee

Hwang

2021

J. Electrochem. Sci. Technol

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Spent activated carbons (SACs) collected from a water treatment plant were regenerated and then adopted as electrochemical material in capacitors. The SACs used in this study were regenerated via two steps, namely thermal and chemical activation. However, during the activation process, the adsorbates were converted into ashes, which caused pore blockage and decreased specific surface area. The regenerated SACs were washed with acid solutions with different levels of acidity

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Regeneration of Spent Activated Carbon from Wastewater Treatment Plant Application

Cited by 15 publications

References 14 publications

Comparative environmental assessment of end-of-life carbonaceous water treatment adsorbents

Comparative environmental assessment of end-of-life carbonaceous water treatment adsorbents

Chemical Regeneration of A Dye-Laden Activated Carbon: Optimization via The Box-Behnken Experimental Design

Electrochemical Capacitance of Activated Carbons Regenerated using Thermal and Chemical Activation

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