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拉西环/陶粒双层填料BAF运行效果及反冲洗研究

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董晓清, 张真江, 吕小梅. 拉西环/陶粒双层填料BAF运行效果及反冲洗研究[J]. 环境工程学报, 2015, 9(8): 3785-3789. doi: 10.12030/j.cjee.20150832
引用本文: 董晓清, 张真江, 吕小梅. 拉西环/陶粒双层填料BAF运行效果及反冲洗研究[J]. 环境工程学报, 2015, 9(8): 3785-3789. doi: 10.12030/j.cjee.20150832
shu
Dong Xiaoqing, Zhang Zhenjiang, Lü Xiaomei. Research on performance and backwashing of raschig rings/ceramic double-packed BAF[J]. Chinese Journal of Environmental Engineering, 2015, 9(8): 3785-3789. doi: 10.12030/j.cjee.20150832
Citation: Dong Xiaoqing, Zhang Zhenjiang, Lü Xiaomei. Research on performance and backwashing of raschig rings/ceramic double-packed BAF[J]. Chinese Journal of Environmental Engineering, 2015, 9(8): 3785-3789. doi: 10.12030/j.cjee.20150832
shu

拉西环/陶粒双层填料BAF运行效果及反冲洗研究

  • 1.

    深圳信息职业技术学院交通与环境学院, 深圳 518172

  • 2.

    哈尔滨工业大学深圳研究生院环境科学与工程研究中心, 深圳 518055

  • 基金项目:

    深圳市国家科技重大专项地方配套资金项目(ZDPT201109200019A)

  • 中图分类号: X703.1

Research on performance and backwashing of raschig rings/ceramic double-packed BAF

  • 1.

    School of Traffic and Environment, Shenzhen Institute of Information Technology, Shenzhen 518172, China

  • 2.

    Environmental Science and Engineering Research Center, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, China

  • Fund Project:

  • 摘要: 针对曝气生物滤池(biological aerated filter,BAF)反冲洗周期较短的问题,研究开发了拉西环/陶粒双层组合填料BAF工艺,并考察了其运行与反冲洗效果。结果表明,拉西环层对COD和SS具有明显的去除效果,去除率分别达到48%和52%;上部陶粒层0.6 m处可使NH4+-N浓度由23.8 mg/L下降至5.7 mg/L,硝化速率达到40.2 g NH4+-N/(h·m3);硝化菌比例随沿程逐渐增加,在0.4 m处已达95%左右。拉西环/陶粒双层填料BAF工艺运行良好,且可将系统反冲洗周期延长至16 d,反冲洗后可在较短时间恢复处理效果。
    Abstract: Aiming at the problem of short backwashing cycle of traditional biological aerated filter (BAF),a double-packed BAF with raschig rings/ceramic as media was developed to investigate the operation performance and backwashing characteristics. Results showed that the raschig ring layers could remove COD and SS efficiently, with the removal rate of 48% and 52% respectively. NH4+-N concentration could be decreased from 23.8 mg/L to 5.7 mg/L in 0.6 m of the upper ceramic layer, with the rate of nitrification approaching as high as 40.2 g NH4+-N/(h·m3). Meanwhile, the abundance of nitrifying bacteria increased gradually along the BAF height, which could reach about 95% at 0.4 m. Moreover, the running period could be extended to 16 days by the new process and the treatment performance could be recovered in short time after backwashing.
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  • 收稿日期:  2014-08-20
  • 刊出日期:  2015-08-13
董晓清, 张真江, 吕小梅. 拉西环/陶粒双层填料BAF运行效果及反冲洗研究[J]. 环境工程学报, 2015, 9(8): 3785-3789. doi: 10.12030/j.cjee.20150832
引用本文: 董晓清, 张真江, 吕小梅. 拉西环/陶粒双层填料BAF运行效果及反冲洗研究[J]. 环境工程学报, 2015, 9(8): 3785-3789. doi: 10.12030/j.cjee.20150832
shu
Dong Xiaoqing, Zhang Zhenjiang, Lü Xiaomei. Research on performance and backwashing of raschig rings/ceramic double-packed BAF[J]. Chinese Journal of Environmental Engineering, 2015, 9(8): 3785-3789. doi: 10.12030/j.cjee.20150832
Citation: Dong Xiaoqing, Zhang Zhenjiang, Lü Xiaomei. Research on performance and backwashing of raschig rings/ceramic double-packed BAF[J]. Chinese Journal of Environmental Engineering, 2015, 9(8): 3785-3789. doi: 10.12030/j.cjee.20150832
shu

拉西环/陶粒双层填料BAF运行效果及反冲洗研究

  • 1. 深圳信息职业技术学院交通与环境学院, 深圳 518172
  • 2. 哈尔滨工业大学深圳研究生院环境科学与工程研究中心, 深圳 518055
  • 收稿日期:  2014-08-20
基金项目:

深圳市国家科技重大专项地方配套资金项目(ZDPT201109200019A)

摘要: 针对曝气生物滤池(biological aerated filter,BAF)反冲洗周期较短的问题,研究开发了拉西环/陶粒双层组合填料BAF工艺,并考察了其运行与反冲洗效果。结果表明,拉西环层对COD和SS具有明显的去除效果,去除率分别达到48%和52%;上部陶粒层0.6 m处可使NH4+-N浓度由23.8 mg/L下降至5.7 mg/L,硝化速率达到40.2 g NH4+-N/(h·m3);硝化菌比例随沿程逐渐增加,在0.4 m处已达95%左右。拉西环/陶粒双层填料BAF工艺运行良好,且可将系统反冲洗周期延长至16 d,反冲洗后可在较短时间恢复处理效果。

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