不同填料组合的曝气生物滤池前置反硝化工艺特性的比较研究

彭晓兰; 陈吕军

环境工程学报

彭晓兰, 陈吕军. 不同填料组合的曝气生物滤池前置反硝化工艺特性的比较研究[J]. 环境工程学报, 2012, 6(4): 1207-1214.

引用本文:

彭晓兰, 陈吕军. 不同填料组合的曝气生物滤池前置反硝化工艺特性的比较研究[J]. 环境工程学报, 2012, 6(4): 1207-1214.

Peng Xiaolan, Chen Lüjun. Comparitive study on two biological aerated filter processes with different media combination for pre-denitrification/nitrification of grey water[J]. Chinese Journal of Environmental Engineering, 2012, 6(4): 1207-1214.

Citation:

Peng Xiaolan, Chen Lüjun. Comparitive study on two biological aerated filter processes with different media combination for pre-denitrification/nitrification of grey water[J]. Chinese Journal of Environmental Engineering, 2012, 6(4): 1207-1214.

不同填料组合的曝气生物滤池前置反硝化工艺特性的比较研究

彭晓兰¹,
陈吕军¹

1.
清华大学环境学院，北京100084
基金项目:
北京市城市节约用水办公室资助项目（041504015）
中图分类号: X703.1

Comparitive study on two biological aerated filter processes with different media combination for pre-denitrification/nitrification of grey water

Peng Xiaolan¹,
Chen Lüjun¹

1.
School of Environment， Tsinghua University， Beijing 100084， China
Fund Project:

摘要: 研究了2组不同填料组合的前置反硝化曝气生物滤池（BAF）脱氮工艺：陶粒沸石工艺（C-Z BAF）和沸石陶粒工艺（Z-C BAF），比较二者在不同的水力停留时间（HRT）、气水比和回流比条件下的工艺特性。当进水COD、氨氮和TN容积负荷分别为0.72～5.97、0.09～0.60和0.11～0.78 kg/（m3·d）时，C-Z BAF和Z-C BAF的最佳HRT、气水比和回流比分别为1.5 h、5∶1、1∶1和1.5 h、5∶1、2∶1，相应COD、氨氮和TN的平均去除率分别为94.7%、99.0%、62.2%和93.2%、99.5%、70.1%。单因素方差分析结果表明，HRT对2组工艺的各种污染物的去除率均有显著影响；回流比对Z-C BAF的TN去除率存在显著的影响，而对C-Z BAF的TN去除率几乎没有影响。污染物沿程分布分析结果表明，两组工艺的COD去除主要发生在缺氧滤池以及好氧滤池0～0.3 m的填料区；硝化作用主要发生在好氧滤池的0～0.6 m填料区，Z-C BAF工艺的硝化速率高于C-Z BAF工艺。Z-C BAF工艺存在明显的同步硝化反硝化作用，且Z-C BAF工艺的脱氮性能优于C-Z BAF工艺。
- 曝气生物滤池 /
- 前置反硝化脱氮工艺 /
- 天然沸石 /
- 陶粒 /
- 单因素方差分析
Abstract: The performance and characteristics of two separated pre-denitrification processes using biological aerated filter (BAF)， ceramic-zeolite BAF (C-Z BAF)， and zeolite-ceramic BAF (Z-C BAF)， were investigated and compared under various HRTs， reflux ratios and air-liquid ratios for treating grey water. The optimized HRT， air-liquid ratio and reflux ratio of C-Z BAF and Z-C BAF were 1.5 h， 5∶1， 1∶1 and 1.5 h， 5∶1， 2∶1， respectively， while influent volumetric loading rates for COD， NH3-N and TN were 0.72～5.97， 0.09～0.60， and 0.11～0.78 kg/m3·d. Under the optimal conditions， the mean removal efficiency of COD， NH3-N， and TN were 94.7%， 99.0% and 62.2%， respectively for the C-Z BAF； and 93.2%， 99.5%， and 70.1%， separately for the Z-C BAF. The results of one-way ANOVA showed that HRT had significant effect on the removal of COD， NH3-N and TN of both processes； reflux ratio had significant effect on the TN removal of Z-C BAF while had no significant effect on that of C-Z BAF. The profile of pollutants along the flow path in the two BAF systems indicated that the COD was oxidized in the anoxic filter and the media of 0～0.3 m in oxic filter； the nitrification mainly happened in the media of 0～0.6 m in oxic filter and the Z-C BAF had higher nitrification rate than C-Z BAF； Z-C BAF had remarkable simultaneous nitrification and de-nitrification phenomenon， thus the de-nitrification efficiency of Z-C BAF was better than that of C-Z BAF.
- biological aerated filter /
- pre-denitrification/nitrification nitrogen removal process /
- natural zeolite /
- ceramic /
- one-way ANOVA

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彭晓兰, 陈吕军. 不同填料组合的曝气生物滤池前置反硝化工艺特性的比较研究[J]. 环境工程学报, 2012, 6(4): 1207-1214.

引用本文:

彭晓兰, 陈吕军. 不同填料组合的曝气生物滤池前置反硝化工艺特性的比较研究[J]. 环境工程学报, 2012, 6(4): 1207-1214.

Citation:

Peng Xiaolan, Chen Lüjun. Comparitive study on two biological aerated filter processes with different media combination for pre-denitrification/nitrification of grey water[J]. Chinese Journal of Environmental Engineering, 2012, 6(4): 1207-1214.

不同填料组合的曝气生物滤池前置反硝化工艺特性的比较研究

彭晓兰¹,
陈吕军¹

1. 清华大学环境学院，北京100084

收稿日期: 2011-01-14

基金项目:

北京市城市节约用水办公室资助项目（041504015）

关键词:

摘要: 研究了2组不同填料组合的前置反硝化曝气生物滤池（BAF）脱氮工艺：陶粒沸石工艺（C-Z BAF）和沸石陶粒工艺（Z-C BAF），比较二者在不同的水力停留时间（HRT）、气水比和回流比条件下的工艺特性。当进水COD、氨氮和TN容积负荷分别为0.72～5.97、0.09～0.60和0.11～0.78 kg/（m3·d）时，C-Z BAF和Z-C BAF的最佳HRT、气水比和回流比分别为1.5 h、5∶1、1∶1和1.5 h、5∶1、2∶1，相应COD、氨氮和TN的平均去除率分别为94.7%、99.0%、62.2%和93.2%、99.5%、70.1%。单因素方差分析结果表明，HRT对2组工艺的各种污染物的去除率均有显著影响；回流比对Z-C BAF的TN去除率存在显著的影响，而对C-Z BAF的TN去除率几乎没有影响。污染物沿程分布分析结果表明，两组工艺的COD去除主要发生在缺氧滤池以及好氧滤池0～0.3 m的填料区；硝化作用主要发生在好氧滤池的0～0.6 m填料区，Z-C BAF工艺的硝化速率高于C-Z BAF工艺。Z-C BAF工艺存在明显的同步硝化反硝化作用，且Z-C BAF工艺的脱氮性能优于C-Z BAF工艺。

English Abstract

Comparitive study on two biological aerated filter processes with different media combination for pre-denitrification/nitrification of grey water

Peng Xiaolan¹,
Chen Lüjun¹

1. School of Environment， Tsinghua University， Beijing 100084， China

Received Date: 2011-01-14

Fund Project:

Keywords:

biological aerated filter /
pre-denitrification/nitrification nitrogen removal process /
natural zeolite /
ceramic /
one-way ANOVA

Abstract: The performance and characteristics of two separated pre-denitrification processes using biological aerated filter (BAF)， ceramic-zeolite BAF (C-Z BAF)， and zeolite-ceramic BAF (Z-C BAF)， were investigated and compared under various HRTs， reflux ratios and air-liquid ratios for treating grey water. The optimized HRT， air-liquid ratio and reflux ratio of C-Z BAF and Z-C BAF were 1.5 h， 5∶1， 1∶1 and 1.5 h， 5∶1， 2∶1， respectively， while influent volumetric loading rates for COD， NH3-N and TN were 0.72～5.97， 0.09～0.60， and 0.11～0.78 kg/m3·d. Under the optimal conditions， the mean removal efficiency of COD， NH3-N， and TN were 94.7%， 99.0% and 62.2%， respectively for the C-Z BAF； and 93.2%， 99.5%， and 70.1%， separately for the Z-C BAF. The results of one-way ANOVA showed that HRT had significant effect on the removal of COD， NH3-N and TN of both processes； reflux ratio had significant effect on the TN removal of Z-C BAF while had no significant effect on that of C-Z BAF. The profile of pollutants along the flow path in the two BAF systems indicated that the COD was oxidized in the anoxic filter and the media of 0～0.3 m in oxic filter； the nitrification mainly happened in the media of 0～0.6 m in oxic filter and the Z-C BAF had higher nitrification rate than C-Z BAF； Z-C BAF had remarkable simultaneous nitrification and de-nitrification phenomenon， thus the de-nitrification efficiency of Z-C BAF was better than that of C-Z BAF.

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不同填料组合的曝气生物滤池前置反硝化工艺特性的比较研究

Comparitive study on two biological aerated filter processes with different media combination for pre-denitrification/nitrification of grey water

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不同填料组合的曝气生物滤池前置反硝化工艺特性的比较研究

English Abstract

Comparitive study on two biological aerated filter processes with different media combination for pre-denitrification/nitrification of grey water

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