| 以城市污水处理厂好氧池生物膜作为接种污泥快速启动两段式亚硝化-厌氧氨氧化反应器的可行性 |
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| 引用本文： | 吕恺, 姚雪薇, 彭党聪. 以城市污水处理厂好氧池生物膜作为接种污泥快速启动两段式亚硝化-厌氧氨氧化反应器的可行性[J]. 环境工程学报, 2021, 15(10): 3368-3377. doi: 10.12030/j.cjee.202107057 |
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| 作者姓名： | 吕恺 姚雪薇 彭党聪 |
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| 作者单位： | 1.西安建筑科技大学环境与市政工程学院, 西安 710055; 2.西北水资源与环境生态教育部重点实验室, 西安 710055 |
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| 摘 要： | 为探讨以城市污水处理厂好氧池生物膜作为接种污泥启动厌氧氨氧化工艺的可行性，启动了两段式亚MBBR亚硝化-厌氧氨氧化工艺并成功运行。结果表明，经过90 d的启动，在进水NH4+-N质量浓度为750 mg·L−1的条件下，亚硝化反应器负荷(以NH4+-N计)可达到9 000 mg·(m2·d)−1，平均出水NO2−-N和NH4+-N质量浓度比值为1.28，满足厌氧氨氧化的反应要求。经过180 d的启动，在进水NH4+-N和NO2−-N质量浓度分别为360 mg·L−1和380 mg·L−1的条件下，厌氧氨氧化反应器负荷(以TN计)可达到13 875 mg·(m2·d)−1，TN去除率可达(84.14±0.66)%。活性测定结果显示，AOB和ANAMMOX活性(以NH4+-N计)分别可达6 423.84 mg·(m2·d)−1和6 448.32 mg·(m2·d)−1且均可维持恒定。高通量测序结果表明，亚硝化反应器中的Nitrosomonas占比由0.02%增至20.09%，为AOB的主导菌属；厌氧氨氧化反应器中，Ca. Brocadia和Ca. Jettenia为主要的ANAMMOX菌，占比分别达到11.00%和2.07%。采用好氧池生物膜作为接种污泥可快速启动两段式亚硝化厌氧氨氧化工艺。
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| 关 键 词： | 接种污泥 厌氧氨氧化 部分亚硝化 移动床生物膜反应器(MBBR) |
| 收稿时间： | 2021-07-12 |
Rapid start-up of a two-stage partial nitritation-ANAMMOX MBBR with inoculated biofilm from aeration tank |
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| LYU Kai, YAO Xuewei, PENG Dangcong. Rapid start-up of a two-stage partial nitritation-ANAMMOX MBBR with inoculated biofilm from aeration tank[J]. Chinese Journal of Environmental Engineering, 2021, 15(10): 3368-3377. doi: 10.12030/j.cjee.202107057 |
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| Authors: | LYU Kai YAO Xuewei PENG Dangcong |
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| Affiliation: | 1.School of Municipal and Environmental Engineering, Xi′an University of Architecture and Technology, Xi′an 710055, China; 2.Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi′an 710055, China |
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| Abstract: | To investigate the feasibility of aerobic biofilm from a wastewater treatment plant (WWTP) as the inoculated biofilm to conduct the start-up of ANAMMOX process, two bed biofilm reactors (MBBR) were established to start-up two stage partial nitritation-ANAMMOX (PN/A) process. The results showed that, after 90 days of start-up, the nitrogen load of PN reactor could reach 9 000 mg·(m2·d)−1 (as NH4+-N) at the influent ammonium concentration of 750 mg·L−1. The average ratio of mass concentration of nitrite to ammonium in effluent was 1.28, which could meet the stoichiometric of ANAMMOX process. After 180 days of start-up, the TN load could reach 13875 mg·(m2·d)−1 (as TN) at the influent ammonium concentration of 360 mg·L−1 and nitrite concentration of 380 mg·L−1 in ANAMMOX reactor, and the average TN removal efficiency could reach (84.14±0.66)%. The activities of AOB and ANAMMOX (as NH4+-N) were 6 423.84 mg·(m2·d)−1and 6 448.32 mg·(m2·d)−1, respectively, and were stably maintained. The high-throughput sequencing results showed that Nitrosomonas was the predominance for AOB bacteria with relative abundance increased from 0.02% to 20.09% in PN reactor. The Ca. Brocadia and Ca. Jettenia were the predominance for ANAMMOX bacteria in ANAMMOX reactor, and the relative abundance of Ca. Brocadia and Ca. Jettenia reached 11.00% and 2.07%, respectively. The successful start-up of two-stage PN/A reactor with aerobic biofilm provided a novel alternative for the selection of inoculated sludge. |
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| Keywords: | seed sludge ANAMMOX partial nitrification MBBR |
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