Study on supercritical water regeneration of bio-based activated carbon saturated with acid red G

The dye and textile industry commonly employs activated carbon adsorption technology due to its cost-effectiveness and high efficiency. However, disposing of waste-activated carbon has a significant environmental and human health impact, and it’s a huge economic waste. This study investigates the ki...

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Main Authors: Yaling Mu, Zitong Zhuang, Kun Jiang, Yimeng Wei, Anjun Meng, Hui Jin
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2025-09-01
Series:Carbon Resources Conversion
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2588913324000723
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author Yaling Mu
Zitong Zhuang
Kun Jiang
Yimeng Wei
Anjun Meng
Hui Jin
author_facet Yaling Mu
Zitong Zhuang
Kun Jiang
Yimeng Wei
Anjun Meng
Hui Jin
author_sort Yaling Mu
collection DOAJ
description The dye and textile industry commonly employs activated carbon adsorption technology due to its cost-effectiveness and high efficiency. However, disposing of waste-activated carbon has a significant environmental and human health impact, and it’s a huge economic waste. This study investigates the kinetic and isothermal adsorption characteristics of Acid Red G dye adsorption by Powdered Activated Carbon derived from coconut shells. To effectively reuse activated carbon and maximise resource conservation, regeneration experiments were carried out using Supercritical Water at 24 MPa and 400 ℃ for 30 min. The experimental results demonstrated that, in comparison with thermal regeneration, supercritical water possesses the benefits of environmental protection, economic efficiency and extensive applicability. This is of considerable importance to the field of research concerning the regeneration of activated carbon.
format Article
id doaj-art-1ecb3c6898a748759ae81ca899ccf20f
institution Kabale University
issn 2588-9133
language English
publishDate 2025-09-01
publisher KeAi Communications Co., Ltd.
record_format Article
series Carbon Resources Conversion
spelling doaj-art-1ecb3c6898a748759ae81ca899ccf20f2025-08-20T03:50:21ZengKeAi Communications Co., Ltd.Carbon Resources Conversion2588-91332025-09-018310028310.1016/j.crcon.2024.100283Study on supercritical water regeneration of bio-based activated carbon saturated with acid red GYaling Mu0Zitong Zhuang1Kun Jiang2Yimeng Wei3Anjun Meng4Hui Jin5State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, 710049, PR ChinaState Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, 710049, PR ChinaState Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, 710049, PR ChinaState Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, 710049, PR ChinaCNNP CHD Hebei Nuclear Power Co., Ltd., Cangzhou, Hebei, 061000, PR ChinaState Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, 710049, PR China; Corresponding author.The dye and textile industry commonly employs activated carbon adsorption technology due to its cost-effectiveness and high efficiency. However, disposing of waste-activated carbon has a significant environmental and human health impact, and it’s a huge economic waste. This study investigates the kinetic and isothermal adsorption characteristics of Acid Red G dye adsorption by Powdered Activated Carbon derived from coconut shells. To effectively reuse activated carbon and maximise resource conservation, regeneration experiments were carried out using Supercritical Water at 24 MPa and 400 ℃ for 30 min. The experimental results demonstrated that, in comparison with thermal regeneration, supercritical water possesses the benefits of environmental protection, economic efficiency and extensive applicability. This is of considerable importance to the field of research concerning the regeneration of activated carbon.http://www.sciencedirect.com/science/article/pii/S2588913324000723Activated carbonSupercritical waterAcid red G removalAdsorption and regeneration
spellingShingle Yaling Mu
Zitong Zhuang
Kun Jiang
Yimeng Wei
Anjun Meng
Hui Jin
Study on supercritical water regeneration of bio-based activated carbon saturated with acid red G
Carbon Resources Conversion
Activated carbon
Supercritical water
Acid red G removal
Adsorption and regeneration
title Study on supercritical water regeneration of bio-based activated carbon saturated with acid red G
title_full Study on supercritical water regeneration of bio-based activated carbon saturated with acid red G
title_fullStr Study on supercritical water regeneration of bio-based activated carbon saturated with acid red G
title_full_unstemmed Study on supercritical water regeneration of bio-based activated carbon saturated with acid red G
title_short Study on supercritical water regeneration of bio-based activated carbon saturated with acid red G
title_sort study on supercritical water regeneration of bio based activated carbon saturated with acid red g
topic Activated carbon
Supercritical water
Acid red G removal
Adsorption and regeneration
url http://www.sciencedirect.com/science/article/pii/S2588913324000723
work_keys_str_mv AT yalingmu studyonsupercriticalwaterregenerationofbiobasedactivatedcarbonsaturatedwithacidredg
AT zitongzhuang studyonsupercriticalwaterregenerationofbiobasedactivatedcarbonsaturatedwithacidredg
AT kunjiang studyonsupercriticalwaterregenerationofbiobasedactivatedcarbonsaturatedwithacidredg
AT yimengwei studyonsupercriticalwaterregenerationofbiobasedactivatedcarbonsaturatedwithacidredg
AT anjunmeng studyonsupercriticalwaterregenerationofbiobasedactivatedcarbonsaturatedwithacidredg
AT huijin studyonsupercriticalwaterregenerationofbiobasedactivatedcarbonsaturatedwithacidredg