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活性污泥对甲醛废水的净化性能

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徐仲均, 程足芬, 林爱军, 王京刚, 童华. 活性污泥对甲醛废水的净化性能[J]. 环境工程学报, 2008, 2(9): 1173-1176.
引用本文: 徐仲均, 程足芬, 林爱军, 王京刚, 童华. 活性污泥对甲醛废水的净化性能[J]. 环境工程学报, 2008, 2(9): 1173-1176.
shu
Xu Zhongjun, Cheng Zufen, Lin Aijun, Wang Jinggang, Tong Hua. Removal of formaldehyde from wastewater by activated sludge[J]. Chinese Journal of Environmental Engineering, 2008, 2(9): 1173-1176.
Citation: Xu Zhongjun, Cheng Zufen, Lin Aijun, Wang Jinggang, Tong Hua. Removal of formaldehyde from wastewater by activated sludge[J]. Chinese Journal of Environmental Engineering, 2008, 2(9): 1173-1176.
shu

活性污泥对甲醛废水的净化性能

  • 1.

    北京化工大学环境科学与工程系，北京 100029

  • 基金项目:

    北京化工大学青年教师自然科学研究基金资助项目

  • 中图分类号: X703.1

Removal of formaldehyde from wastewater by activated sludge

  • 1.

    Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing 100029)

  • Fund Project:

  • 摘要: 采用微生物法处理低浓度甲醛废水达标排放是比较经济的方法之一。在研究中采用序批式活性污泥法(SBR)工艺，考察了曝气时间、进水甲醛浓度、进水pH和水温对微生物净化低浓度甲醛废水的影响。结果表明，随着曝气时间的延长，活性污泥对甲醛的去除率增大。进水甲醛浓度在40～120 mg/L范围内，随着浓度升高甲醛污泥负荷增加，微生物对甲醛的降解速率增加，但对甲醛的去除率降低。活性污泥在pH为5～7的中性和弱酸性环境中对甲醛的降解速率较高。在15～35℃范围内，污泥对废水中甲醛的去除率随温度升高而上升，微生物对甲醛的降解速率随温度升高呈指数递增趋势。
    Abstract: It is an economical way that the formaldehyde in low concentration is removed from wastewater by microorganism. In this study, a sequencing batch reactor (SBR) was employed to investigate effects of aerating time, influent formaldehyde concentration, influent water pH and water temperature on the removal of formaldehyde in low concentration from wastewater by microorganism. The results showed that the removal rate of formaldehyde by activated sludge increased with aerating time. Both formaldehyde load rate by activated sludge and formaldehyde degradation rate by microorganism increased with elevated influent formaldehyde concentration, while formaldehyde removal rate decreased within the influent formaldehyde concentration range from 40 to 120 mg/L. Formaldehyde degradation efficiency by activated sludge was higher in the water of pH 5～7. Formaldehyde removal rate increased and formaldehyde degradation rate increased taking the form of an exponential function with elevated water temperature within the water temperature range from 15℃to 35℃.
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出版历程
  • 收稿日期:  2008-05-19
徐仲均, 程足芬, 林爱军, 王京刚, 童华. 活性污泥对甲醛废水的净化性能[J]. 环境工程学报, 2008, 2(9): 1173-1176.
引用本文: 徐仲均, 程足芬, 林爱军, 王京刚, 童华. 活性污泥对甲醛废水的净化性能[J]. 环境工程学报, 2008, 2(9): 1173-1176.
shu
Xu Zhongjun, Cheng Zufen, Lin Aijun, Wang Jinggang, Tong Hua. Removal of formaldehyde from wastewater by activated sludge[J]. Chinese Journal of Environmental Engineering, 2008, 2(9): 1173-1176.
Citation: Xu Zhongjun, Cheng Zufen, Lin Aijun, Wang Jinggang, Tong Hua. Removal of formaldehyde from wastewater by activated sludge[J]. Chinese Journal of Environmental Engineering, 2008, 2(9): 1173-1176.
shu

活性污泥对甲醛废水的净化性能

  • 1. 北京化工大学环境科学与工程系，北京 100029
  • 收稿日期:  2008-05-19
基金项目:

北京化工大学青年教师自然科学研究基金资助项目

摘要: 采用微生物法处理低浓度甲醛废水达标排放是比较经济的方法之一。在研究中采用序批式活性污泥法(SBR)工艺，考察了曝气时间、进水甲醛浓度、进水pH和水温对微生物净化低浓度甲醛废水的影响。结果表明，随着曝气时间的延长，活性污泥对甲醛的去除率增大。进水甲醛浓度在40～120 mg/L范围内，随着浓度升高甲醛污泥负荷增加，微生物对甲醛的降解速率增加，但对甲醛的去除率降低。活性污泥在pH为5～7的中性和弱酸性环境中对甲醛的降解速率较高。在15～35℃范围内，污泥对废水中甲醛的去除率随温度升高而上升，微生物对甲醛的降解速率随温度升高呈指数递增趋势。

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