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唐海, 沙俊鹏, 赵翔. 生物沸石球强化吸附氨氮废水的动力学研究[J]. 环境工程学报, 2014, 8(5): 1851-1856.
引用本文: 唐海, 沙俊鹏, 赵翔. 生物沸石球强化吸附氨氮废水的动力学研究[J]. 环境工程学报, 2014, 8(5): 1851-1856.
shu
Tang Hai, Sha Junpeng, Zhao Xiang. Kinetic study of adsorption enhancement on ammonia nitrogen wastewater by biological zeolite ball[J]. Chinese Journal of Environmental Engineering, 2014, 8(5): 1851-1856.
Citation: Tang Hai, Sha Junpeng, Zhao Xiang. Kinetic study of adsorption enhancement on ammonia nitrogen wastewater by biological zeolite ball[J]. Chinese Journal of Environmental Engineering, 2014, 8(5): 1851-1856.
shu

生物沸石球强化吸附氨氮废水的动力学研究

  • 1.

    安徽工程大学生物与化学工程学院, 芜湖 241000

  • 基金项目:

    安徽省高校省级自然科学重点项目（KJ2012A038，KJ2013A047）

  • 中图分类号: X703.1

Kinetic study of adsorption enhancement on ammonia nitrogen wastewater by biological zeolite ball

  • 1.

    School of Biochemical Engineering, Anhui Polytechnic University, Wuhu 241000, China

  • Fund Project:

  • 摘要: 用一种具有多孔结构特征的沸石球作为载体固定化硝化细菌强化吸附氨氮废水。结果表明，沸石球能快速固定化硝化细菌，吸附动力学表明150 min对氨氮吸附容量达到2.816 mg/g，而且还有继续增加的趋势。假二级动力学方程和Elovich模型的精确拟合说明，生物沸石球对氨氮的吸附过程可能是非均相扩散起作用及以化学吸附反应为主的复杂转化过程。扩散拟合结果表明，氨氮在生物沸石球的吸附是以液膜扩散和颗粒内扩散为吸附速率的控制步骤，活性的硝化细菌对氨氮的硝化使氨氮在微孔的吸附得到了强化。
    Abstract: The adsorption enhancement of ammonia nitrogen wastewater was conducted using an immobilized nitrifying bacteria zeolite small ball(ZSB) carrier with the characteristics of porous structure. The results showed that the ZSB can fastly immobilize nitrifying bacteria, the adsorption kinetics illustrates that the ammonia nitrogen adsorption capacity can reach 2.816 mg/g at 150 min and have a continuous increasing trend. Pseudo second-order equation and Elovich model can precisely fit the adsorption processes, which suggest that biological zeolite small ball (BZSB) could be a complex conversion process coupling with heterogeneous diffusion and chemical adsorption reaction. The fitting results indicate that the adsorption rate limiting step of ammonia nitrogen by BZSB are both liquid film diffusion and intra-particle diffusion, the adsorption of ammonia nitrogen in micropore are strengthened by the nitrification of ammonia by active nitrifying bacteria.
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  • 收稿日期:  2013-06-30
  • 刊出日期:  2014-05-06
唐海, 沙俊鹏, 赵翔. 生物沸石球强化吸附氨氮废水的动力学研究[J]. 环境工程学报, 2014, 8(5): 1851-1856.
引用本文: 唐海, 沙俊鹏, 赵翔. 生物沸石球强化吸附氨氮废水的动力学研究[J]. 环境工程学报, 2014, 8(5): 1851-1856.
shu
Tang Hai, Sha Junpeng, Zhao Xiang. Kinetic study of adsorption enhancement on ammonia nitrogen wastewater by biological zeolite ball[J]. Chinese Journal of Environmental Engineering, 2014, 8(5): 1851-1856.
Citation: Tang Hai, Sha Junpeng, Zhao Xiang. Kinetic study of adsorption enhancement on ammonia nitrogen wastewater by biological zeolite ball[J]. Chinese Journal of Environmental Engineering, 2014, 8(5): 1851-1856.
shu

生物沸石球强化吸附氨氮废水的动力学研究

  • 1. 安徽工程大学生物与化学工程学院, 芜湖 241000
  • 收稿日期:  2013-06-30
基金项目:

安徽省高校省级自然科学重点项目（KJ2012A038，KJ2013A047）

摘要: 用一种具有多孔结构特征的沸石球作为载体固定化硝化细菌强化吸附氨氮废水。结果表明，沸石球能快速固定化硝化细菌，吸附动力学表明150 min对氨氮吸附容量达到2.816 mg/g，而且还有继续增加的趋势。假二级动力学方程和Elovich模型的精确拟合说明，生物沸石球对氨氮的吸附过程可能是非均相扩散起作用及以化学吸附反应为主的复杂转化过程。扩散拟合结果表明，氨氮在生物沸石球的吸附是以液膜扩散和颗粒内扩散为吸附速率的控制步骤，活性的硝化细菌对氨氮的硝化使氨氮在微孔的吸附得到了强化。

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