| 引用本文: | 任玉辉,李相昆,盛加宝,程庆锋,张杰.曝气生物滤池处理生活污水亚硝化的实验研究[J].哈尔滨工业大学学报,2013,45(10):14.DOI:10.11918/j.issn.0367-6234.2013.10.003 |
| REN Yuhui,LI Xiangkun,SHENG Jiabao,CHENG Qingfeng,ZHANG Jie.Research on partial nitritation for domestic sewage by biological aerated filter[J].Journal of Harbin Institute of Technology,2013,45(10):14.DOI:10.11918/j.issn.0367-6234.2013.10.003 |
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| 摘要: |
| 为探究低氨氮生活污水亚硝化的可行性,采用高负荷生物滤池-上向流曝气生物滤池(UBAF)两段式反应器考察水流方向对高负荷生物滤池去除COD、氨氮效果及温度、DO对UBAF亚硝化效果的影响．结果表明,在水力负荷为0.58 m3／(m2·h)、COD容积负荷为2.30 kg／(m3·d)、气水比为3.6∶1、常温条件下,上向流进水方式能够获得稳定的低COD、高氨氮的二级出水．在水温30～33 ℃、DO 2.5～3.0 mg／L、进水pH 7.8～8.1条件下,UBAF出水氨氮平均转化率为84.58 ％,亚硝氮平均质量浓度达23.01 mg／L．UBAF反应器中各种含氮化合物沿程变化及FISH检测表明,在反应器末段存在一定程度的同步亚硝化厌氧氨氧化作用．该两段式反应器能驯化单独的脱碳、脱氮优势菌群,实现低氨氮生活污水的亚硝化． |
| 关键词: 生活污水 曝气生物滤池 亚硝化 厌氧氨氧化 荧光原位杂交 |
| DOI：10.11918/j.issn.0367-6234.2013.10.003 |
| 分类号: |
| 基金项目:国家重大科技专项(2013ZX07201007). |
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| Research on partial nitritation for domestic sewage by biological aerated filter |
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REN Yuhui1, LI Xiangkun1, SHENG Jiabao2, CHENG Qingfeng1, ZHANG Jie1
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(1.State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 150090 Harbin, China; 2.Beijing General Municipal Engineering Design ＆ Research Institute, 100124 Beijing, China)
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| Abstract: |
| To study the feasibility of partial nitritation of domestic sewage with low ammonia nitrogen, actual domestic sewage was treated by high rate bio-filter and up-flow biological aerated filter(UBAF). The effect of flow direction on the performance of high rate bio-filter removing COD and NH4+-N and the effect of temperature and DO on the efficiency of UBAF for partial nitritation were researched. Results showed that at the hydraulic loading of 0.58 m3／(m2·h), COD volume loading of 2.30 kg／(m3·d), air-water ratio of 3.6∶1 and room temperature, up-flow filtration achieved high COD and low ammonia-nitrogen removals. Ammonia nitrogen removal rate reached 84.58％ and nitrite content in the effluent of UBAF achieved 23.01 mg／L on the conditions of temperature 30-33 ℃, DO 2.5-3.0 mg／L and pH value 7.8-8.1. Further study on the change of nitrogenous compounds in different depth combining with FISH demonstrates that a certain degree CANON process could exist at the end of UBAF. The two-stage reactor could domesticate decarbonizing and denitrifying bacterias independently, the partial nitritation of domestic sewage with low ammonia nitrogen can be achieved. |
| Key words: domestic sewage BAF partial nitritation ANAMMOX FISH |
