不同电子供体条件下废水处理过程中氮去除和微生物分布的比较。
Comparison of nitrogen removal and microbial distribution in wastewater treatment process under different electron donor conditions.
机构信息
Department of Civil and Environmental Engineering, Pusan National University, Busan 609-735, Republic of Korea.
出版信息
Bioresour Technol. 2010 May;101(9):2988-95. doi: 10.1016/j.biortech.2009.12.012. Epub 2010 Jan 6.
The applicability of modified spent caustic (MSC) as an electron donor for denitrification was evaluated in a lab-scale reactor for the Bardenpho process under various electron donor conditions: (A) no electron donor, (B) methanol, (C) thiosulfate and (D) MSC conditions. TN removal efficiency varied in each condition, 23.1%, 87.8%, 83.7% and 71.7%, respectively. The distribution ratio of nitrifying bacteria and DGGE profile including sulfur-reducing or oxidizing bacteria also varied depending on the conditions. These results indicated that the MSC would be used as an efficient electron donor for denitrification by autotrophic denitrifier in wastewater treatment process.
在 Bardenpho 工艺的实验室规模反应器中，评估了改性废碱（MSC）作为电子供体用于反硝化的适用性，在各种电子供体条件下：（A）无电子供体，（B）甲醇，（C）硫代硫酸盐和（D）MSC 条件。TN 去除效率在每种条件下分别为 23.1%、87.8%、83.7%和 71.7%。硝化细菌的分布比例和包括硫还原或氧化细菌的 DGGE 图谱也根据条件而变化。这些结果表明，MSC 将通过废水处理过程中的自养反硝化菌用作有效的反硝化电子供体。
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