Self-regulating calcium peroxide-ozone system for treating refractory industrial wastewater: Mechanistic elucidation, pilot-scale application, and techno-economic analysis.
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| Title: | Self-regulating calcium peroxide-ozone system for treating refractory industrial wastewater: Mechanistic elucidation, pilot-scale application, and techno-economic analysis. |
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| Authors: | Huang, Yu-Kun1 (AUTHOR), Chen, Xin-Jia1 (AUTHOR), Duan, Pi-Jun1 (AUTHOR), Wang, Jing1 (AUTHOR), Bai, Chang-Wei1 (AUTHOR), Zhang, Zhi-Quan1 (AUTHOR), Huang, Jun-Jie1 (AUTHOR), Xu, Xiao-Wei1 (AUTHOR), Chen, Fei1 (AUTHOR) fchen0505@cqu.edu.cn |
| Source: | Applied Catalysis B: Environment & Energy. Aug2026, Vol. 391, pN.PAG-N.PAG. 1p. |
| Subjects: | Wastewater treatment, Autocatalysis, Hazardous substance management, Pilot projects, Resource recovery facilities, Lime (Minerals), Ozone, Cost benefit analysis |
| Abstract: | This work develops a self-regulating calcium peroxide/ozone (CaO 2 /O 3) system for treating refractory industrial wastewater. The study integrated comprehensive batch tests and 60 L pilot-scale experiments with multiple mechanistic probes, including hydrolysis-pathway blocking, CaO 2 morphology characterization, electrochemical analysis, and theoretical calculations. The system achieved 96.7% nitrobenzene degradation within 18 min over pH 3.0–11.0, enhanced O 3 utilization by 38.4%, removed > 81.7% of phosphorus and heavy metals by precipitation, sustained > 83.8% COD removal for 120 h in real wastewater treatment, and lowered carbon emissions by 74.5% and treatment costs by 37.1% compared to the Fenton process. These results demonstrated that the CaO 2 /O 3 system effectively coupled pollutant mineralization with simultaneous resource recovery through a heterogeneous autocatalytic HOO-CaO 2 -O 3 intermediate pathway. By establishing a low-carbon and economically viable platform, this work promotes the practical application of next-generation oxidation technologies for complex industrial effluents. [Display omitted] • CaO 2 enabled in-situ H 2 O 2 replenishment in the peroxone reaction through self-regulation. • Ca2 + and OH- by-products from CaO 2 /O 3 enabled effective recovery of P and heavy metals. • In-depth analysis elucidated the autocatalytic mechanism of the CaO 2 /O 3 system. • Toxicity assays verified significant detoxification driven by high mineralization efficiency. • Pilot-scale validation, LCA, and cost analysis confirmed practical applicability potential. [ABSTRACT FROM AUTHOR] |
| Copyright of Applied Catalysis B: Environment & Energy is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 192617768 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Self-regulating calcium peroxide-ozone system for treating refractory industrial wastewater: Mechanistic elucidation, pilot-scale application, and techno-economic analysis. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Huang%2C+Yu-Kun%22">Huang, Yu-Kun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Xin-Jia%22">Chen, Xin-Jia</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Duan%2C+Pi-Jun%22">Duan, Pi-Jun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Jing%22">Wang, Jing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bai%2C+Chang-Wei%22">Bai, Chang-Wei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Zhi-Quan%22">Zhang, Zhi-Quan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Huang%2C+Jun-Jie%22">Huang, Jun-Jie</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xu%2C+Xiao-Wei%22">Xu, Xiao-Wei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Fei%22">Chen, Fei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> fchen0505@cqu.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Applied+Catalysis+B%3A+Environment+%26+Energy%22">Applied Catalysis B: Environment & Energy</searchLink>. Aug2026, Vol. 391, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Wastewater+treatment%22">Wastewater treatment</searchLink><br /><searchLink fieldCode="DE" term="%22Autocatalysis%22">Autocatalysis</searchLink><br /><searchLink fieldCode="DE" term="%22Hazardous+substance+management%22">Hazardous substance management</searchLink><br /><searchLink fieldCode="DE" term="%22Pilot+projects%22">Pilot projects</searchLink><br /><searchLink fieldCode="DE" term="%22Resource+recovery+facilities%22">Resource recovery facilities</searchLink><br /><searchLink fieldCode="DE" term="%22Lime+%28Minerals%29%22">Lime (Minerals)</searchLink><br /><searchLink fieldCode="DE" term="%22Ozone%22">Ozone</searchLink><br /><searchLink fieldCode="DE" term="%22Cost+benefit+analysis%22">Cost benefit analysis</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This work develops a self-regulating calcium peroxide/ozone (CaO 2 /O 3) system for treating refractory industrial wastewater. The study integrated comprehensive batch tests and 60 L pilot-scale experiments with multiple mechanistic probes, including hydrolysis-pathway blocking, CaO 2 morphology characterization, electrochemical analysis, and theoretical calculations. The system achieved 96.7% nitrobenzene degradation within 18 min over pH 3.0–11.0, enhanced O 3 utilization by 38.4%, removed > 81.7% of phosphorus and heavy metals by precipitation, sustained > 83.8% COD removal for 120 h in real wastewater treatment, and lowered carbon emissions by 74.5% and treatment costs by 37.1% compared to the Fenton process. These results demonstrated that the CaO 2 /O 3 system effectively coupled pollutant mineralization with simultaneous resource recovery through a heterogeneous autocatalytic HOO-CaO 2 -O 3 intermediate pathway. By establishing a low-carbon and economically viable platform, this work promotes the practical application of next-generation oxidation technologies for complex industrial effluents. [Display omitted] • CaO 2 enabled in-situ H 2 O 2 replenishment in the peroxone reaction through self-regulation. • Ca2 + and OH- by-products from CaO 2 /O 3 enabled effective recovery of P and heavy metals. • In-depth analysis elucidated the autocatalytic mechanism of the CaO 2 /O 3 system. • Toxicity assays verified significant detoxification driven by high mineralization efficiency. • Pilot-scale validation, LCA, and cost analysis confirmed practical applicability potential. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Applied Catalysis B: Environment & Energy is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=192617768 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.apcatb.2026.126692 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Wastewater treatment Type: general – SubjectFull: Autocatalysis Type: general – SubjectFull: Hazardous substance management Type: general – SubjectFull: Pilot projects Type: general – SubjectFull: Resource recovery facilities Type: general – SubjectFull: Lime (Minerals) Type: general – SubjectFull: Ozone Type: general – SubjectFull: Cost benefit analysis Type: general Titles: – TitleFull: Self-regulating calcium peroxide-ozone system for treating refractory industrial wastewater: Mechanistic elucidation, pilot-scale application, and techno-economic analysis. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Huang, Yu-Kun – PersonEntity: Name: NameFull: Chen, Xin-Jia – PersonEntity: Name: NameFull: Duan, Pi-Jun – PersonEntity: Name: NameFull: Wang, Jing – PersonEntity: Name: NameFull: Bai, Chang-Wei – PersonEntity: Name: NameFull: Zhang, Zhi-Quan – PersonEntity: Name: NameFull: Huang, Jun-Jie – PersonEntity: Name: NameFull: Xu, Xiao-Wei – PersonEntity: Name: NameFull: Chen, Fei IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 08 Text: Aug2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 09263373 Numbering: – Type: volume Value: 391 Titles: – TitleFull: Applied Catalysis B: Environment & Energy Type: main |
| ResultId | 1 |
