[1]张余健,杨一宸,马斌,等.低碳城市污水脱氮工艺中硝化颗粒污泥的培养[J].中国给水排水,2023,39(7):17-22.
　ZHANGYu-jian,YANGYi-chen,MABin,et al.Cultivation of Nitrifying Granular Sludge in Low-carbon Municipal Wastewater Nitrogen Removal Process[J].China Water & Wastewater,2023,39(7):17-22.
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低碳城市污水脱氮工艺中硝化颗粒污泥的培养

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期数: 2023年第7期 页码: 17-22 栏目: 出版日期: 2023-04-01
Title:
Cultivation of Nitrifying Granular Sludge in Low-carbon Municipal Wastewater Nitrogen Removal Process
作者:
张余健1， 杨一宸1， 马斌1， 委燕2
（1.海南大学 海南省农林环境过程与生态调控重点实验室，海南 海口 570228；2.海南大学 南海海洋资源利用国家重点实验室，海南 海口 570228）
Author(s):
ZHANG　Yu-jian1， YANG　Yi-chen1， MA　Bin1， WEI　Yan2
（1. Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province， Hainan University， Haikou 570228， China； 2. State Key Laboratory of Marine Resource Utilization in South China Sea， Hainan University， Haikou 570228， China）
关键词:
低碳城市污水;  短程反硝化;  厌氧氨氧化;  硝化颗粒污泥
Keywords:
low-carbon municipal wastewater;  partial denitrification;  Anammox;  nitrifying granular sludge
摘要:
为了实现低碳城市污水高效深度脱氮，构建短程反硝化/厌氧氨氧化+硝化颗粒污泥脱氮工艺，研究硝化颗粒污泥的培养策略。结果表明，采用上向流污泥床（USB）反应器以序批式运行，并逐步缩短沉淀时间，成功培养出了硝化颗粒污泥，其中90.52%的污泥颗粒粒径>0.5 mm；颗粒污泥的沉降速度随着粒径的增大而增大，0.5~0.9 mm粒径的颗粒污泥平均沉降速度为15.66 m/h。颗粒污泥形成后，USB反应器的氨氮容积去除速率达到1.31 g/（L·d）。短程反硝化厌氧氨氧化+硝化颗粒污泥工艺的脱氮性能分析结果表明，该工艺脱氮效率高、有机碳源需求量低，适合处理低碳城市污水并实现深度脱氮。
Abstract:
To achieve efficient and advanced nitrogen removal of low-carbon municipal wastewater, this paper established a process consisting of partial denitrification/Anammox and nitrifying granular sludge (PDA-N), and investigated the cultivation of nitrifying granular sludge. The up-flow sludge bed (USB) reactor was run in sequential batch mode and the settling time was gradually shortened. Nitrifying granular sludge was thus successfully cultivated, and 90.52% of the nitrifying granular sludge had a particle size greater than 0.5 mm. The settling velocity of granular sludge increased with the increase of particle size, and the average settling velocity of particles with particle size of 0.5-0.9 mm was 15.66 m/h. After the formation of granular sludge, the volumetric removal rate of ammonia nitrogen in the USB reached 1.31 g/(L·d). The PDA-N process had high nitrogen removal efficiency and low demand for organic carbon sources, which was suitable for advanced nitrogen removal of low-carbon municipal wastewater.

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更新日期/Last Update: 2023-04-01