Optimization of the Intermittent Aeration in a Full‐Scale Wastewater Treatment Plant Biological Reactor for Nitrogen Removal
Optimization of the Intermittent Aeration in a Full‐Scale Wastewater Treatment Plant Biological Reactor for Nitrogen Removal
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DOI：
10.2175/106143005x41807
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发表时间：
2005-05
影响因子：
3.1
通讯作者：
Patrícia Habermeyer;Antoni Sánchez
中科院分区：
文献类型：
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作者：
Patrícia Habermeyer;Antoni Sánchez
通过实验设计，研究了全尺寸生物反应器中间歇曝气处理城市和工业废水的优化问题，其中主要考虑了曝气开关时间和溶解氧设定点。这项工作的目的是确定曝气控制的最佳配置，以实现同时去除碳（以化学需氧量[COD]表示）和氮。该结果是在位于Sant Celoni （Barcelona, Spain）污水处理厂的全尺寸生物反应器中获得的，该反应器正在测试基于硝化-反硝化工艺的脱氮工艺。研究表明，确保完全去除COD和氮的关键参数是让系统长时间的开-关曝气来完成硝化和反硝化过程，而溶解氧设定值对整体性能的影响很小。所提出的结果可以应用于许多类似的系统，其中基于硝化-反硝化方案的氮去除目前正在测试或实施。
The optimization of the intermittent aeration in a full‐scale biological reactor treating municipal and industrial wastewater has been studied by means of an experimental design, where the main factors considered have been the on–off period of aeration and the dissolved‐oxygen set point. The objective of the work has been to determine the optimal configuration of the aeration control to achieve a simultaneous removal of carbon (expressed as chemical oxygen demand [COD]) and nitrogen. The results were obtained in a full‐scale bioreactor located at the wastewater treatment plant of Sant Celoni (Barcelona, Spain), where a nitrogen removal based on a nitrification–denitrification process is being tested. It has been shown that the crucial parameter to ensure a complete removal of COD and nitrogen is to give the system a long time of on–off aeration to complete both the nitrification and the denitrification processes, whereas the dissolved‐oxygen set point has a minor influence on the overall performance. The results presented can be applied to a great number of similar systems, in which a nitrogen removal, based on a nitrification–denitrification scheme, is currently being tested or implemented.