Phenol-driven ammonium recovery from coal chemical wastewater in a bioelectrochemical system (BES)

Ran Zeng; Li Hui Yang; Si Yuan Zhai; Cheng Yan Liu; Na Lin; Qing Hua Ou-Yang; Yan Hua Xu; Ai Jie Wang; Hao Yi Cheng

doi:10.1016/j.jhazmat.2025.137791

Phenol-driven ammonium recovery from coal chemical wastewater in a bioelectrochemical system (BES)

Ran Zeng, Li Hui Yang, Si Yuan Zhai, Cheng Yan Liu, Na Lin, Qing Hua Ou-Yang, Yan Hua Xu, Ai Jie Wang, Hao Yi Cheng

School of Environmental Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Bioelectrochemical systems (BES) have gained considerable attention in the past decade as a potentially sustainable and cost-effective method for coal chemical wastewater (CCW) treatment. However, a scarcity of studies focusing on the recovery NH₄⁺-N in the recycling treatment of CCW via BES technology. In this study, a BES-ammonium recovery system (BES-ARS) was proposed to remove phenol and NH₄⁺-N simultaneously, while NH₄⁺-N was further recovered in a downstream recovery unit. Through systematic evaluation, we identified optimal condition for both phenol and NH₄⁺-N removal. Specifically, an influent phenol-to-ammonium ratio of 2.0 was found to be ideal for maximizing simultaneous removal efficiency. Additionally, an evaluation of the nitrogen distribution showed that 97.9 % of NH₄⁺-N migrated to the cathode chamber, with 82.5 % of NH₄⁺-N being recovered in the absorbent under optimal condition. Furthermore, the solution not only reduces operational costs by up to 68 % compared to conventional treatments, but also conserves energy. This study presents an efficient and environmentally friendly treatment method for treating CCW, while recovering NH₄⁺-N as a valuable resource.

Original language	English
Article number	137791
Journal	Journal of Hazardous Materials
Volume	490
DOIs	https://doi.org/10.1016/j.jhazmat.2025.137791
State	Published - 15 Jun 2025

Keywords

Ammonium recovery
Bioelectrochemical system
Coal chemical wastewater
Phenol degradation
Phenol-to-ammonium ratio

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10.1016/j.jhazmat.2025.137791

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@article{50339b9bbc4b4458a2aeb09ed0f0266c,

title = "Phenol-driven ammonium recovery from coal chemical wastewater in a bioelectrochemical system (BES)",

abstract = "Bioelectrochemical systems (BES) have gained considerable attention in the past decade as a potentially sustainable and cost-effective method for coal chemical wastewater (CCW) treatment. However, a scarcity of studies focusing on the recovery NH4+-N in the recycling treatment of CCW via BES technology. In this study, a BES-ammonium recovery system (BES-ARS) was proposed to remove phenol and NH4+-N simultaneously, while NH4+-N was further recovered in a downstream recovery unit. Through systematic evaluation, we identified optimal condition for both phenol and NH4+-N removal. Specifically, an influent phenol-to-ammonium ratio of 2.0 was found to be ideal for maximizing simultaneous removal efficiency. Additionally, an evaluation of the nitrogen distribution showed that 97.9 % of NH4+-N migrated to the cathode chamber, with 82.5 % of NH4+-N being recovered in the absorbent under optimal condition. Furthermore, the solution not only reduces operational costs by up to 68 % compared to conventional treatments, but also conserves energy. This study presents an efficient and environmentally friendly treatment method for treating CCW, while recovering NH4+-N as a valuable resource.",

keywords = "Ammonium recovery, Bioelectrochemical system, Coal chemical wastewater, Phenol degradation, Phenol-to-ammonium ratio",

author = "Ran Zeng and Yang, {Li Hui} and Zhai, {Si Yuan} and Liu, {Cheng Yan} and Na Lin and Ou-Yang, {Qing Hua} and Xu, {Yan Hua} and Wang, {Ai Jie} and Cheng, {Hao Yi}",

note = "Publisher Copyright: {\textcopyright} 2025",

year = "2025",

month = jun,

day = "15",

doi = "10.1016/j.jhazmat.2025.137791",

language = "英语",

volume = "490",

journal = "Journal of Hazardous Materials",

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TY - JOUR

T1 - Phenol-driven ammonium recovery from coal chemical wastewater in a bioelectrochemical system (BES)

AU - Zeng, Ran

AU - Yang, Li Hui

AU - Zhai, Si Yuan

AU - Liu, Cheng Yan

AU - Lin, Na

AU - Ou-Yang, Qing Hua

AU - Xu, Yan Hua

AU - Wang, Ai Jie

AU - Cheng, Hao Yi

PY - 2025/6/15

Y1 - 2025/6/15

N2 - Bioelectrochemical systems (BES) have gained considerable attention in the past decade as a potentially sustainable and cost-effective method for coal chemical wastewater (CCW) treatment. However, a scarcity of studies focusing on the recovery NH4+-N in the recycling treatment of CCW via BES technology. In this study, a BES-ammonium recovery system (BES-ARS) was proposed to remove phenol and NH4+-N simultaneously, while NH4+-N was further recovered in a downstream recovery unit. Through systematic evaluation, we identified optimal condition for both phenol and NH4+-N removal. Specifically, an influent phenol-to-ammonium ratio of 2.0 was found to be ideal for maximizing simultaneous removal efficiency. Additionally, an evaluation of the nitrogen distribution showed that 97.9 % of NH4+-N migrated to the cathode chamber, with 82.5 % of NH4+-N being recovered in the absorbent under optimal condition. Furthermore, the solution not only reduces operational costs by up to 68 % compared to conventional treatments, but also conserves energy. This study presents an efficient and environmentally friendly treatment method for treating CCW, while recovering NH4+-N as a valuable resource.

AB - Bioelectrochemical systems (BES) have gained considerable attention in the past decade as a potentially sustainable and cost-effective method for coal chemical wastewater (CCW) treatment. However, a scarcity of studies focusing on the recovery NH4+-N in the recycling treatment of CCW via BES technology. In this study, a BES-ammonium recovery system (BES-ARS) was proposed to remove phenol and NH4+-N simultaneously, while NH4+-N was further recovered in a downstream recovery unit. Through systematic evaluation, we identified optimal condition for both phenol and NH4+-N removal. Specifically, an influent phenol-to-ammonium ratio of 2.0 was found to be ideal for maximizing simultaneous removal efficiency. Additionally, an evaluation of the nitrogen distribution showed that 97.9 % of NH4+-N migrated to the cathode chamber, with 82.5 % of NH4+-N being recovered in the absorbent under optimal condition. Furthermore, the solution not only reduces operational costs by up to 68 % compared to conventional treatments, but also conserves energy. This study presents an efficient and environmentally friendly treatment method for treating CCW, while recovering NH4+-N as a valuable resource.

KW - Ammonium recovery

KW - Bioelectrochemical system

KW - Coal chemical wastewater

KW - Phenol degradation

KW - Phenol-to-ammonium ratio

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U2 - 10.1016/j.jhazmat.2025.137791

DO - 10.1016/j.jhazmat.2025.137791

M3 - 文章

AN - SCOPUS:85218880406

SN - 0304-3894

VL - 490

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

M1 - 137791

ER -

Phenol-driven ammonium recovery from coal chemical wastewater in a bioelectrochemical system (BES)

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