A novel perspective on breakpoint chlorination: The optimal practices for inactivating fungal spores in peak chloramination

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成果类型：

期刊论文

作者：

Wu, Gehui;Wan, Qiqi;Xu, Xiangqian;Huang, Tinglin;Wen, Gang

通讯作者：

Wen, G

作者机构：

[Huang, Tinglin; Wan, Qiqi; Wen, Gang; Wu, Gehui] Xian Univ Architecture & Technol, Shaanxi Key Lab Environm Engn, Xian 710055, Peoples R China.

[Huang, Tinglin; Wan, Qiqi; Wen, Gang; Wu, Gehui] Xian Univ Architecture & Technol, Shaanxi Prov Field Sci Observat & Res Stn Water Qu, Xian 710055, Peoples R China.

[Huang, Tinglin; Wen, Gang] Xian Univ Architecture & Technol, Collaborat Innovat Ctr Water Pollut Control & Wate, Xian 710055, Peoples R China.

[Xu, Xiangqian] Wuhan Polytech Univ, Sch Civil Engn & Architecture, Wuhan 430023, Peoples R China.

通讯机构：

[Wen, G ] X

Xian Univ Architecture & Technol, Shaanxi Key Lab Environm Engn, Xian 710055, Peoples R China.

语种：

英文

关键词：

Breakpoint chlorination;Cl(2)/N ratio;Disinfection mechanism;Fungal spores;Monochloramine

期刊：

Journal of Hazardous Materials

ISSN：

0304-3894

年：

2025

卷：

492

页码：

138156

DOI：

10.1016/j.jhazmat.2025.138156

基金类别：

CRediT authorship contribution statement Wan Qiqi: Writing – review & editing, Visualization, Project administration, acquisition. Xu Xiangqian: Writing – review & editing, Methodology. Wu Gehui: Writing – original draft, Visualization, Methodology, Formal analysis, Data curation. Wen Gang: Writing – review & editing, Supervision, acquisition. Huang Tinglin: Writing – review & editing, Supervision.

机构署名：

本校为其他机构

院系归属：

土木工程与建筑学院

摘要：

This study investigates the breakpoint chlorination process and its impact on fungal spore and bacterial inactivation, focusing on the dynamic role of chloramines. Using Aspergillus niger and Bacillus subtilis as model microorganisms, a three-stage inactivation pattern driven by varying Cl 2 /N ratios was revealed. As Cl 2 /N increases, the overall disinfection efficiency improves, with free chlorine dominating bacterial inactivation beyond the breakpoint. However, for fungal spores, monochloramine (NH 2 Cl) remains the primary inactivating age...

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A novel perspective on breakpoint chlorination: The optimal practices for inactivating fungal spores in peak chloramination

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