[1]王泓,吴莎,刘珂,等.氮负荷提升方式强化ANAMMOX反应器的性能研究[J].中国给水排水,2021,37(9):90-96.
　WANG Hong,WU Sha,LIU Ke,et al.Performance of ANAMMOX Reactor Enhanced by Nitrogen Load Lifting Method[J].China Water & Wastewater,2021,37(9):90-96.
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氮负荷提升方式强化ANAMMOX反应器的性能研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期数: 2021年第9期 页码: 90-96 栏目: 出版日期: 2021-05-01
Title:
Performance of ANAMMOX Reactor Enhanced by Nitrogen Load Lifting Method
作者:
王泓1，吴莎2，刘珂1，刘达山1，杨恩喆1，陈婧1，许荣华1，宿忆萌1，陈宏1
(1.长沙理工大学水利工程学院洞庭湖水环境治理与水生态修复湖南省重点实验室，湖南长沙410114；2.长沙理工大学化学与食品工程学院，湖南长沙410114)
Author(s):
WANG Hong1,WU Sha2,LIU Ke1,LIU Da-shan1,YANG En-zhe1,CHEN Jing1,XU Rong-hua1,SU Yi-meng1,CHEN Hong1
(1. Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410114, China; 2. School of Chemistry and Food Engineering, Changsha University of Science & Technology, Changsha 410114, China)
关键词:
厌氧氨氧化; 基质浓度; 水力停留时间; 颗粒污泥; 性能强化
Keywords:
ANAMMOX; substrate concentration; hydraulic retention time (HRT); granular sludge; performance enhancement
摘要:
采用提高基质浓度和缩短水力停留时间两种氮负荷提升方式运行UASB厌氧氨氧化反应器，比较了两种方式对反应器运行性能的影响。试验结果表明，经过300 d的连续运行，对NH4+-N、NO2--N、TN的去除率分别为93.09%、95.26%和88.46%，氮容积去除负荷由0.75 kg/（m3·d）升至2.26 kg/（m3·d）。稳定阶段的化学计量关系ΔNO2--N/ΔNH4+-N和ΔNO3--N/ΔNH4+-N分别为1.12和0.14，接近理论值，第Ⅲ阶段出水pH值逐渐升高最后趋于稳定，产气量达到1.51 L/（L·d），污泥粒径增至5.0~7.0 mm，沉速提高至(8.94±0.77) cm/s，颗粒化程度高、颜色鲜红，脱氮性能得到强化。相比提高基质浓度，采用低浓度进水并缩短水力停留时间的方式提升氮负荷，能避免基质自身的抑制作用，稳定且较快地强化厌氧氨氧化反应器性能，有利于颗粒污泥的形成。
Abstract:
ANAMMOX reactor was operated by two nitrogen load lifting methods including stepwise increasing of substrate concentration and shortening hydraulic retention time (HRT),and effects of the two different methods on performance of ANAMMOX reactor were compared. During 300 days of operation, the removal efficiencies of NH4+-N，NO2--N and TN could reach 93.09%, 95.26% and 88.46%, respectively,and the nitrogen load removal rate increased from 0.75 kg/(m3·d) to 2.26 kg/(m3·d). ΔNO2--N/ΔNH4+-N and ΔNO3--N/ΔNH4+-N were 1.12 and 0.14 during stable stage, which was close to the theoretical value. The pH of the effluent gradually increased and finally tended to be stable in phase Ⅲ. Gas production per unit volume of sludge reached 1.51 L/(L·d). Particle size of the sludge increased to 5.0-7.0 mm,and settling velocity increased to (8.94±0.77) cm/s. A large amount of scarlet granules were observed,which enhanced the denitrification performance. Compared with the strategy of increasing substrate concentration, low-concentration influent and shortening HRT to increase nitrogen load could avoid the inhibition effect of the substrate itself, and quickly enhanced and stabilized the performance of the ANAMMOX reactor, which was conducive to the formation of granular sludge.

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更新日期/Last Update: 2021-05-01