颗粒＋絮体污泥 CANON 工艺的启动与 SRT 影响研究  

Start-up of Combined Floc-granule CANON Process and the Effects of SRT on Reactor Performance

作　　者：孙延芳[1] 韩晓宇[2,3,4] 张树军[3,4] 李星[1] 曹相生[1] 

机构地区：[1]北京工业大学建筑工程学院,北京市水质科学与水环境恢复工程重点实验室,北京100124 [2]哈尔滨工业大学市政环境工程学院,哈尔滨150090 [3]北京城市排水集团有限责任公司科技研发中心,北京100022 [4]北京市污水资源化工程技术研究中心,北京100124

出　　处：《环境科学》2017年第2期672-678,共7页Environmental Science

摘　　要：为缩短工程应用中CANON工艺的启动时间及指导实际工程排泥控制,利用两个相同规格的SBR反应器接种不同比例厌氧氨氧化(anaerbic ammonium oxidation,ANAMMOX)颗粒污泥,研究了CANNON工艺启动规律与不同絮体SRT对工艺运行的影响.试验过程中,温度控制在30℃±1℃,pH 7~8.结果表明,接种5%和10%ANAMMOX颗粒污泥的两反应器在初始FA浓度大于44 mg·L^(-1)条件下,不利于工艺的快速启动.接种15%和20%ANAMMOX颗粒污泥的两反应器,分别在运行的第46 d和35 d成功启动了CANON工艺.当絮体SRT分别为30 d、90 d和不主动排泥时,系统总氮去除负荷均能维持在0.35kg·(m3·d)-1;定量PCR数据显示,随污泥龄的延长,AOB丰度相对稳定,ANAMMOX菌丰度略有增加,但是NOB丰度显著增加.因此,选择性地排出絮体有利于NOB的淘洗和系统的长期运行稳定性.To shorten the start-up time of CANON process and guide the sludge dischargement in the practical project, the start-up of CANNON process and influence of different flocs SRT were studied by inoculation ANAMMOX granules of different proportions in two same specifications of SBR reactor. During the experiment, the temperature was controlled at 30℃ ± 1℃ and pH was 7-8. The results showed that it was not good for CANON process rapid start-up when the two reactors were inoculated with 5% and 10% ANAMMOX granules respectively and the initial FA concentration exceeded 44 mg·L ^- 1 . When the two reactors were inoculated with 5% and 10%ANAMMOX granular sludge, the reactors were started-up successfully on Day 46 and Day 35, respectively. When the flocs SRT was maintained at 30 d, 90 d and un-initiative discharge respectively, the average total nitrogen removal rate could reach 0. 35 kg·（m^3·d）^ - 1 stably. The quantitative PCR results of the three different flocs SRT showed that with increasing flocs SRT, the abundance of AOB was relatively stable, the abundance of ANAMMOX increased slightly, while the abundance of NOB significant increased. Therefore, it is necessary to elutriate flocs from reactor for decreasing the quantity of NOB and long-term stable operation of the CANON process.

关 键 词：全程自养脱氮 启动 颗粒污泥 污泥龄 定量PCR 

分 类 号：X703.1[环境科学与工程—环境工程]