Graduate School of Science and Technology, Niigata University, Nishi-ku, Niigata, Japan.
Bioresour Technol. 2010 Oct;101(19):7239-44. doi: 10.1016/j.biortech.2010.04.032. Epub 2010 May 6.
The objective of present study was to assess the simultaneous removal of organic pollutants and nutrients by five laboratory scale up-flow constructed wetlands (UFCWs). Aerobic and anaerobic regions were well developed at the upper and lower beds, respectively, in the UFCW reactors with supplementary aeration. The emergent plants employed were Phragmites australis and Manchurian wild rice. The COD, T-N, T-P, NH(4)-N and NO(3)-N removal efficiencies for the UFCW reactors were in the range of 90-94%, 69-92%, 29-52%, 59-98% and 45-100%, respectively. The organic matter and NH(4)-N removal efficiencies in the aerated wetland reactors were better than the non-aerated wetland reactors. The supplementary aeration has enhanced the aerobic biodegradation of organic matter and nitrification. The Manchurian wild rice outperformed P. australis in the removals of T-P, T-N and NH(4)-N.
本研究的目的是评估 5 个实验室规模上流式人工湿地（UFCW）同时去除有机污染物和营养物的能力。在补充曝气的 UFCW 反应器中，好氧区和厌氧区分别在上部和下部得到了很好的发展。所使用的挺水植物为芦苇和菰。UFCW 反应器对 COD、T-N、T-P、NH4-N 和 NO3-N 的去除效率分别为 90-94%、69-92%、29-52%、59-98%和 45-100%。曝气湿地反应器中的有机物和 NH4-N 去除效率优于非曝气湿地反应器。补充曝气增强了有机物的好氧生物降解和硝化作用。菰在去除 T-P、T-N 和 NH4-N 方面优于芦苇。
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