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不同温度下曝气生物滤池运行效能与微生物群落结构

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窦娜莎, 王琳. 不同温度下曝气生物滤池运行效能与微生物群落结构[J]. 环境工程学报, 2016, 10(6): 2800-2806. doi: 10.12030/j.cjee.201501153
引用本文: 窦娜莎, 王琳. 不同温度下曝气生物滤池运行效能与微生物群落结构[J]. 环境工程学报, 2016, 10(6): 2800-2806. doi: 10.12030/j.cjee.201501153
shu
Dou Nasha, Wang Lin. Microbial community structure and the performance of biological aerated filter under different temperatures[J]. Chinese Journal of Environmental Engineering, 2016, 10(6): 2800-2806. doi: 10.12030/j.cjee.201501153
Citation: Dou Nasha, Wang Lin. Microbial community structure and the performance of biological aerated filter under different temperatures[J]. Chinese Journal of Environmental Engineering, 2016, 10(6): 2800-2806. doi: 10.12030/j.cjee.201501153
shu

不同温度下曝气生物滤池运行效能与微生物群落结构

  • 1.

    中国海洋大学环境科学与工程学院, 青岛 266100

  • 基金项目:

    国家水体污染控制与治理科技重大专项(2008ZX07010-008-04)

    山东省科技攻关项目(2009GGB01012)

  • 中图分类号: X703.1

Microbial community structure and the performance of biological aerated filter under different temperatures

  • 1.

    College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China

  • Fund Project:

  • 摘要: 采用Biostyr 曝气生物滤池(BAF)处理城市污水,研究了温度变化对其处理效果与微生物群落结构的影响。结果表明,温度低于18℃(低温)时,BAF对COD和NH4+-N去除率均低于60%;当水温在18~22℃(中温)之间变化时,BAF对COD 和NH4+-N的去除效果稳定且明显高于低温时的去除率;当水温高于22℃(高温)后,BAF对COD和NH4+-N去除率与水温正相关,去除率随温度的升高而显著提高。PCR-DGGE分析表明,温度越高BAF内总细菌微生物群落多样性越好;定量PCR分析表明,BAF内总细菌、氨氧化细菌和硝化细菌的菌群密度均随温度升高而增大,与其对污染物的去除率变化趋势一致。BAF在低温环境下,滤池内的菌群结构变得简单、菌群密度降低,但出水水质仍能满足要求,表明BAF工艺具有良好的抗低温冲击能力。
    Abstract: A Biostyr biological aerated filter (BAF) was applied to treat municipal wastewater. The effects of temperature on BAF nutrient removal efficiency and microbial community structure were investigated. The removal efficiencies of chemical oxygen demand (COD) and ammonia nitrogen (NH4+-N) were below 60% when the temperature was below 18℃. When the temperature was between 18℃ and 22℃, the removal efficiencies of COD and NH4+-N were stabilized, and the removal rates were higher than that observed for temperatures below 18℃. When the temperature was higher than 22℃, the removal efficiencies were positively correlated with temperature; removal efficiency increased significantly as the water temperature increased. Based on a PCR-DGGE analysis, the multiformity of total bacteria in the microbial communities at higher temperatures was better than that observed at a lower temperature. Based on a quantitative PCR analysis, the total bacterial density, ammonia oxidizing bacteria, and nitrifying bacteria in the BAF increased as the temperature increased, which was consistent with the trends observed for the pollutant removal rate. The microbial community structure in the filter became less complex, and the density of bacteria decreased at a low temperature. These results indicated that the BAF had optimal effects at low temperatures.
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  • 收稿日期:  2015-03-18
  • 刊出日期:  2016-06-03
窦娜莎, 王琳. 不同温度下曝气生物滤池运行效能与微生物群落结构[J]. 环境工程学报, 2016, 10(6): 2800-2806. doi: 10.12030/j.cjee.201501153
引用本文: 窦娜莎, 王琳. 不同温度下曝气生物滤池运行效能与微生物群落结构[J]. 环境工程学报, 2016, 10(6): 2800-2806. doi: 10.12030/j.cjee.201501153
shu
Dou Nasha, Wang Lin. Microbial community structure and the performance of biological aerated filter under different temperatures[J]. Chinese Journal of Environmental Engineering, 2016, 10(6): 2800-2806. doi: 10.12030/j.cjee.201501153
Citation: Dou Nasha, Wang Lin. Microbial community structure and the performance of biological aerated filter under different temperatures[J]. Chinese Journal of Environmental Engineering, 2016, 10(6): 2800-2806. doi: 10.12030/j.cjee.201501153
shu

不同温度下曝气生物滤池运行效能与微生物群落结构

  • 1. 中国海洋大学环境科学与工程学院, 青岛 266100
  • 收稿日期:  2015-03-18
基金项目:

国家水体污染控制与治理科技重大专项(2008ZX07010-008-04)

山东省科技攻关项目(2009GGB01012)

摘要: 采用Biostyr 曝气生物滤池(BAF)处理城市污水,研究了温度变化对其处理效果与微生物群落结构的影响。结果表明,温度低于18℃(低温)时,BAF对COD和NH4+-N去除率均低于60%;当水温在18~22℃(中温)之间变化时,BAF对COD 和NH4+-N的去除效果稳定且明显高于低温时的去除率;当水温高于22℃(高温)后,BAF对COD和NH4+-N去除率与水温正相关,去除率随温度的升高而显著提高。PCR-DGGE分析表明,温度越高BAF内总细菌微生物群落多样性越好;定量PCR分析表明,BAF内总细菌、氨氧化细菌和硝化细菌的菌群密度均随温度升高而增大,与其对污染物的去除率变化趋势一致。BAF在低温环境下,滤池内的菌群结构变得简单、菌群密度降低,但出水水质仍能满足要求,表明BAF工艺具有良好的抗低温冲击能力。

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