[1]王思琦,刘旭,张连,等.基于PN/A的组合工艺处理餐厨沼液的中试研究[J].中国给水排水,2025,41(21):1-9.
　WANGSi-qi,LIUXu,ZHANGLian,et al.A Pilot-scale Investigation into Treatment of Kitchen Waste Biogas Slurry Using Partial Nitrification-Anammox Combined Process[J].China Water & Wastewater,2025,41(21):1-9.
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基于PN/A的组合工艺处理餐厨沼液的中试研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期数: 2025年第21期 页码: 1-9 栏目: 出版日期: 2025-11-01
Title:
A Pilot-scale Investigation into Treatment of Kitchen Waste Biogas Slurry Using Partial Nitrification-Anammox Combined Process
作者:
王思琦1,2， 刘旭2， 张连2， 黎紫江2， 邓昭滨2， 陈锦财2， 罗泳翔2， 陈福明2， 董文艺1
（1.哈尔滨工业大学<深圳> 生态环境学院，广东 深圳 518057；2.清研环境科技股份有限公司，广东 深圳 518057）
Author(s):
WANG　Si-qi1，2， LIU　Xu2， ZHANG　Lian2， LI　Zi-jiang2， DENG　Zhao-bin2， CHEN　Jin-cai2， LUO　Yong-xiang2， CHEN　Fu-ming2， DONG　Wen-yi1
（1. School of Ecology and Environment， Harbin Institute of Technology ， Shenzhen 518057， China； 2. Qingyan Environmental Technology Co. Ltd.， Shenzhen 518057， China）
关键词:
餐厨沼液;  短程硝化-厌氧氨氧化;  脱氮
Keywords:
kitchen waste biogas slurry;  partial nitritation and Anammox;  nitrogen removal
摘要:
开发了一套缺氧/反应沉淀一体式矩形气升环流反应池-短程硝化/厌氧氨氧化反应池-反应沉淀一体式矩形气升环流反应池（A/RPIR-PN/A-RPIR）组合工艺，并开展了中试规模的餐厨沼液处理研究，考察该组合工艺的脱氮除碳性能及其机理。结果表明，A/RPIR-PN/A-RPIR组合工艺对NH4+-N、TN和COD的平均去除率分别可达到97.10%、87.39%和82.36%，总氮去除负荷最高可达到0.31 kg/（m3·d）。A/RPIR单元在进水水质波动较大的情况下，出水C/N值始终保持在0~1的较低范围，保障了后续PN/A单元厌氧氨氧化反应的稳定进行。PN/A单元的总氮去除负荷可达到0.57 kg/（m3·d），厌氧氨氧化菌（AnAOB）和氨氧化菌（AOB）的相对丰度分别由低负荷运行阶段的6.18%和0.66%升至满负荷运行阶段的12.59%和2.23%，亚硝酸盐氧化菌（NOB）和反硝化菌（DNB）的相对丰度则分别由0.59%和15.20%降至0.49%和4.04%，说明该组合工艺可以有效解决PN/A反应过程中菌群竞争和短程硝化不稳定的问题，实现高效稳定脱氮。
Abstract:
A combined process comprising an anoxic/reaction-precipitation integrated rectangular airlift circulation reactor, followed by a partial nitrification/Anammox reactor and a subsequent reaction-precipitation integrated rectangular airlift circulation reactor (A/RPIR-PN/A-RPIR), was developed and implemented for the pilot-scale treatment of kitchen waste biogas slurry. The performance and underlying mechanisms of nitrogen and carbon removal in this integrated system were systematically investigated. The average removal efficiencies of NH4+-N, TN, and COD achieved by the A/RPIR-PN/A-RPIR combined process were 97.10%, 87.39%, and 82.36%, respectively, with a maximum TN removal load of 0.31 kg/(m3·d). Even under significant fluctuations in influent quality, the effluent C/N ratio of the A/RPIR unit remained consistently low, within the range of 0 to 1, thereby ensuring stable operation of the subsequent Anammox process in the PN/A unit. The TN removal load of the PN/A unit reached 0.57 kg/(m3·d). The relative abundances of Anammox bacteria (AnAOB) and ammonia-oxidizing bacteria (AOB) increased from 6.18% and 0.66% during the low-load operation phase to 12.59% and 2.23% during the full-load operation phase. In contrast, the relative abundances of nitrite-oxidizing bacteria (NOB) and denitrifying bacteria (DNB) decreased from 0.59% and 15.20% to 0.49% and 4.04%, respectively. The above results indicated that the combined process effectively mitigated bacterial competition and maintained stable partial nitrification throughout the PN/A reaction, thereby enabling efficient and sustained nitrogen removal.

相似文献/References:

[1]宋欣欣,闵海华,丁西明.预处理+两级A/O+UF+Fenton+BAF处理餐厨沼液[J].中国给水排水,2021,37(8):143.
　SONG Xin-xin,MIN Hai-hua,DING Xi-ming.Treatment of Food Waste Biogas Slurry by Process of Pretreatment, Two-stage A/O, UF, Fenton Advanced Oxidation and BAF[J].China Water & Wastewater,2021,37(21):143.

更新日期/Last Update: 2025-11-01