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厌氧、好氧、厌氧/好氧交替状态对活性污泥性质的影响

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杨波, 单晓明, 田晴, 李方, 马春燕. 厌氧、好氧、厌氧/好氧交替状态对活性污泥性质的影响[J]. 环境工程学报, 2015, 9(9): 4293-4299. doi: 10.12030/j.cjee.20150932
引用本文: 杨波, 单晓明, 田晴, 李方, 马春燕. 厌氧、好氧、厌氧/好氧交替状态对活性污泥性质的影响[J]. 环境工程学报, 2015, 9(9): 4293-4299. doi: 10.12030/j.cjee.20150932
shu
Yang Bo, Shan Xiaoming, Tian Qing, Li Fang, Ma Chunyan. Impact of anaerobic, aerobic, and alternative anaerobic-aerobic operating conditions on sludge characteristics[J]. Chinese Journal of Environmental Engineering, 2015, 9(9): 4293-4299. doi: 10.12030/j.cjee.20150932
Citation: Yang Bo, Shan Xiaoming, Tian Qing, Li Fang, Ma Chunyan. Impact of anaerobic, aerobic, and alternative anaerobic-aerobic operating conditions on sludge characteristics[J]. Chinese Journal of Environmental Engineering, 2015, 9(9): 4293-4299. doi: 10.12030/j.cjee.20150932
shu

厌氧、好氧、厌氧/好氧交替状态对活性污泥性质的影响

  • 1.

    东华大学环境科学与工程学院, 上海 201620

  • 基金项目:

    上海市自然科学基金资助(13ZR1401000)

  • 中图分类号: X703.1

Impact of anaerobic, aerobic, and alternative anaerobic-aerobic operating conditions on sludge characteristics

  • 1.

    College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China

  • Fund Project:

  • 摘要: 实验采用活性污泥处理模拟印染废水,研究厌氧、好氧、厌氧/好氧交替3种条件对活性污泥性质的影响。3种实验条件下, 污泥沉降比(SV%)均基本保持在18%~25%之间,污泥容积指数(SVI)保持在62~66 mL/g之间。活性污泥混合液中胞外聚合物(EPS)除EPSB-蛋白质浓度持续升高外,其余形式均呈现积累、达到最大值后下降的趋势,其中厌氧/好氧交替条件下EPS浓度最高而好氧条件下最小。在整个实验期间,活性污泥的脱氢酶活性基本呈上升状态,在厌氧/好氧间歇曝气条件下脱氢酶活性最高、好氧条件次之、厌氧条件最低,最终3种条件下的脱氢酶活性分别为31.27、26.63和24.37 mg/(g·h)。活性污泥中ATP浓度基本呈现先增加后减小、再趋于稳定的变化趋势。实验结果表明,活性污泥表观产率系数顺序是好氧> 厌氧> 厌氧/好氧交替运行,厌氧/好氧交替实现了系统内污泥减量,微生物的产率系数和能量状态密切相关。脱氢酶活性对污染物的降解影响明显,而实验条件下微生物能量状态和污泥减量并不对污染物降解产生影响。
    Abstract: The impacts of anaerobic, aerobic and alternative anaerobic-aerobic operating conditions on activated sludge characteristics were investigated by using the activated sludge process to treat the simulated dyeing wastewater. Under the three conditions, the sludge settling ratio (SV%) and the sludge volume index (SVI)could keep between 18% to 25% and 62 mL/g to 66 mL/g. The extracellular polymeric substances (EPS) concentration in the activated sludge except EPSB-protein which continuously increased during the whole experiment presented a tendency of accumulating to a maximum in first, then declining. The EPS concentration of alternative anaerobic-aerobic condition was the highest and that of the aerobic condition was the lowest. Dehydrogenase activity of the actived sludge increased persistently throughout the experimental period for all conditions. The dehydrogenase activity of alternative anaerobic-aerobic condition had the highest value followed by aerobic, anaerobic condition, which were 31.27, 26.63 and 24.37 mg/(g·h), respectively at the end of the experiment. The concentration of ATP showed a gradually increasing trend in the early stage, then a decreasing to a stable state. The result showed that the sludge yield coefficient presented a consequence of aerobic> anaerobic> alternative anaerobic-aerobic for three conditions, which meant alternative anaerobic-aerobic condition achieved sludge reduction and the yield coefficient was relative to the energy state of microorganism closely. Dehydrogenase activity had a significant impact on the degradation of pollutants, while the microbial energy state and sludge reduction did not influence the degradation efficiency under the three conditions.
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  • 收稿日期:  2014-11-06
  • 刊出日期:  2015-09-15
杨波, 单晓明, 田晴, 李方, 马春燕. 厌氧、好氧、厌氧/好氧交替状态对活性污泥性质的影响[J]. 环境工程学报, 2015, 9(9): 4293-4299. doi: 10.12030/j.cjee.20150932
引用本文: 杨波, 单晓明, 田晴, 李方, 马春燕. 厌氧、好氧、厌氧/好氧交替状态对活性污泥性质的影响[J]. 环境工程学报, 2015, 9(9): 4293-4299. doi: 10.12030/j.cjee.20150932
shu
Yang Bo, Shan Xiaoming, Tian Qing, Li Fang, Ma Chunyan. Impact of anaerobic, aerobic, and alternative anaerobic-aerobic operating conditions on sludge characteristics[J]. Chinese Journal of Environmental Engineering, 2015, 9(9): 4293-4299. doi: 10.12030/j.cjee.20150932
Citation: Yang Bo, Shan Xiaoming, Tian Qing, Li Fang, Ma Chunyan. Impact of anaerobic, aerobic, and alternative anaerobic-aerobic operating conditions on sludge characteristics[J]. Chinese Journal of Environmental Engineering, 2015, 9(9): 4293-4299. doi: 10.12030/j.cjee.20150932
shu

厌氧、好氧、厌氧/好氧交替状态对活性污泥性质的影响

  • 1. 东华大学环境科学与工程学院, 上海 201620
  • 收稿日期:  2014-11-06
基金项目:

上海市自然科学基金资助(13ZR1401000)

摘要: 实验采用活性污泥处理模拟印染废水,研究厌氧、好氧、厌氧/好氧交替3种条件对活性污泥性质的影响。3种实验条件下, 污泥沉降比(SV%)均基本保持在18%~25%之间,污泥容积指数(SVI)保持在62~66 mL/g之间。活性污泥混合液中胞外聚合物(EPS)除EPSB-蛋白质浓度持续升高外,其余形式均呈现积累、达到最大值后下降的趋势,其中厌氧/好氧交替条件下EPS浓度最高而好氧条件下最小。在整个实验期间,活性污泥的脱氢酶活性基本呈上升状态,在厌氧/好氧间歇曝气条件下脱氢酶活性最高、好氧条件次之、厌氧条件最低,最终3种条件下的脱氢酶活性分别为31.27、26.63和24.37 mg/(g·h)。活性污泥中ATP浓度基本呈现先增加后减小、再趋于稳定的变化趋势。实验结果表明,活性污泥表观产率系数顺序是好氧> 厌氧> 厌氧/好氧交替运行,厌氧/好氧交替实现了系统内污泥减量,微生物的产率系数和能量状态密切相关。脱氢酶活性对污染物的降解影响明显,而实验条件下微生物能量状态和污泥减量并不对污染物降解产生影响。

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