Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science & Engineering, Shandong University, Jinan 250100, PR China.
Bioresour Technol. 2013 Aug;141:117-22. doi: 10.1016/j.biortech.2013.03.077. Epub 2013 Mar 19.
In this study, an intermittent-aerated subsurface flow constructed wetland (SFCW) A was set up to assess its performance in decentralized rural sewage treatment. A conventional SFCW B and a subsurface wastewater infiltration system (SWIS C) were also constructed for comparison. Alternate anaerobic and aerobic conditions were well developed by intermittent aeration. High removal of organic pollutants (29.3 gm(-2) d(-1)), ammonium nitrogen (3.5 gm(-2) d(-1)) and total nitrogen (3.3 gm(-2) d(-1)) were obtained simultaneously in SFCW A compared with SFCW B and SWIS C. Fluorescence in situ hybridization analysis proved that the intermittent aeration obviously enhanced the growth of ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) in SFCW A. These results suggest that intermittent aeration strategy is reliable to enhance the performance of SFCWs in decentralized rural sewage treatment.
本研究建立了一个间歇曝气地下流人工湿地（SFCW）A，以评估其在分散式农村污水处理中的性能。还构建了一个常规的地下流人工湿地 B 和一个地下污水渗滤系统 C 进行比较。通过间歇曝气，形成了良好的交替厌氧和好氧条件。与 SFCW B 和 SWIS C 相比，SFCW A 同时获得了较高的有机物污染物去除率（29.3 gm(-2) d(-1))、铵态氮去除率（3.5 gm(-2) d(-1))和总氮去除率（3.3 gm(-2) d(-1))。荧光原位杂交分析证明，间歇曝气明显增强了 SFCW A 中氨氧化细菌（AOB）和亚硝酸盐氧化细菌（NOB）的生长。这些结果表明，间歇曝气策略可可靠地提高分散式农村污水处理中 SFCWs 的性能。
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