[1]袁敏忠,孙竟翔,徐是龙,等.硫歧化驱动硫自养反硝化脱氮生产性试验与评估[J].中国给水排水,2026,42(15):9-14.
YuanMinzhong,SunJingxiang,XuShilong,et al.Sulfur Disproportionation-driven Sulfur Autotrophic Denitrification: Productive Test and Performance Evaluation[J].China Water & Wastewater,2026,42(15):9-14.
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YuanMinzhong,SunJingxiang,XuShilong,et al.Sulfur Disproportionation-driven Sulfur Autotrophic Denitrification: Productive Test and Performance Evaluation[J].China Water & Wastewater,2026,42(15):9-14.
硫歧化驱动硫自养反硝化脱氮生产性试验与评估
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第42卷
期数:
2026年第15期
页码:
9-14
栏目:
出版日期:
2026-08-01
- Title:
- Sulfur Disproportionation-driven Sulfur Autotrophic Denitrification: Productive Test and Performance Evaluation
- 关键词:
- 关键词: 硫自养反硝化; 硫歧化; 深度脱氮; 多硫化物介导; 生物复合填料
- Keywords:
- sulfur autotrophic denitrification; sulfur disproportionation; advanced denitrification; polysulfide mediation; biological composite filler
- 摘要:
- 针对城镇污水深度脱氮异养反硝化存在碳源依赖、运行成本高、碳排放量大等问题,研发硫基生物复合填料,并搭建500~900 m3/d一体化装备,在清远市龙塘污水处理厂开展 117 d 生产性试验。系统稳定运行期硝态氮平均去除率达到81.98%~93.46%,平均脱氮负荷为0.41 kg/(m3·d),为传统硫自养工艺的1.40~1.68倍,出水总氮稳定低于5 mg/L;填料具备优异碱度缓冲能力,无酸化板结问题,且形成硫歧化-硫氧化耦合功能菌群。该工艺处理成本为0.156 元/m3,较异养反硝化降低31%,无需外加碳源且实现近零排放。该技术为城镇污水低碳深度脱氮提供了可行的方案。
- Abstract:
- To address the issues of carbon source dependence, high operational cost and intensive carbon emissions associated with heterotrophic denitrification for advanced denitrification of municipal wastewater, this study independently developed sulfur-based biological composite fillers and constructed an integrated facility with a treatment capacity of 500-900 m3/d. A 117-day field trial was conducted at Longtang Wastewater Treatment Plant in Qingyuan City. The results demonstrated that during the stable operation stage, the average nitrate nitrogen removal efficiency of the system reached 81.98%-93.46%, with an average nitrogen removal load of 0.41 kg/(m3·d), which was 1.40-1.68 times that of the conventional sulfur-driven autotrophic denitrification process. The effluent total nitrogen concentration was stably below 5 mg/L. The filler presented excellent alkalinity buffering capacity, with no acidification or compaction observed, and a sulfur disproportionation-sulfur oxidation coupled functional microbial community was established. The unit water treatment cost of this process was merely 0.156 yuan/m3, 31% lower than that of heterotrophic denitrification. Moreover, the process required no external carbon source and realized near-zero carbon emissions. This technology offers a feasible engineering solution for low-carbon advanced denitrification of municipal wastewater.
更新日期/Last Update:
2026-08-01