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首页> 外文会议>Second International Conference on Wetlands amp; Remediation, Sep 5-6, 2001, Burlington, Vermont >NITRIFICATION/DENITRIFICATION: FULL-SCALE SUBSURFACE-FLOW CONSTRUCTED WETLANDS USING AIRLIFT PUMPS
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NITRIFICATION/DENITRIFICATION: FULL-SCALE SUBSURFACE-FLOW CONSTRUCTED WETLANDS USING AIRLIFT PUMPS

机译：硝化/反硝化：利用气泵将大型地下渗流构造成湿地

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摘要

The wastewater needs of Mesquite New Mexico, a colonia, are serviced by a septic tank effluent pumped (STEP) collection systems and a subsurface flow constructed wetlands. Because this system has a groundwater discharge permit the regulated parameter of interest is total nitrogen. This is also the public health parameter of interest. This wastewater treatment plant, which is four+ years old, has never been in compliance with its nitrogen permit. There is to little oxygen in the system to allow effective nitrification, and without nitrification, the wetlands cannot denitrify. It has been shown by this group that if the nitrification can be achieved, this system will denitrify. The airlift pump study has demonstrated that total nitrogen of sub 10 mg/L can be achieved continuously in this climate. The modified cell continues to provide excellent nitrification/denitrification inspite of a 2-week shutdown period, temperatures below 10 degrees C, and an increase of loading up to 5x as great average loadings.
机译：新墨西哥州梅斯基特（Mesquite）的废水需求是通过化粪池污水泵（STEP）收集系统和地下流动人工湿地来满足的。由于该系统具有地下水排放许可证，因此感兴趣的调节参数是总氮。这也是关注的公共卫生参数。这家已有4年以上历史的废水处理厂从未符合其氮许可标准。系统中的氧气很少，无法进行有效的硝化作用，如果没有硝化作用，湿地将无法反硝化。该小组表明，如果可以实现硝化作用，则该系统将反硝化。气泵研究表明，在这种气候下，总氮含量可连续达到10 mg / L以下。尽管停工期为2周，温度低于10摄氏度，且平均负载量增加了5倍，但经过改进的电池仍可提供出色的硝化/反硝化作用。

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