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Rates of Nitrate and Perchlorate Removal in a 5-Year-Old Wood Particle Reactor Treating Agricultural Drainage

机译：5年的处理农业排水的木质颗粒反应器中硝酸盐和高氯酸盐的去除率

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摘要

A 5-year-old wood particle reactor treating agricultural tile drainage in southern Ontario was monitored for its ongoing ability to treat both nitrate (NO_3~-) and perchlorate (C1O_4~-). Prior to sampling undertaken in the fifth year of operation, a highway safety flare containing C1O4 was immersed in the inlet pipe elevating influent C1O4~ concentrations to up to 33.7 μg/L. C1O_4~- removal rates were inhibited in the presence of more than 1 to 2 mg/L NO_3~--N, but increased rapidly to about 60 μg/L/d upon NO_3~- depletion. Nitrate removal rates, measured subsequently in the sixth and seventh years of operation, varied with temperature in the range of 2 to 16 mg N/L/d, but remained similar to rates measured in the second year. Additionally, no deterioration in the hydraulic conductivity (K) of the coarse core layer (0.5
机译：监测了安大略省南部一个有5年历史的处理农业瓷砖排水的木材颗粒反应器的持续处理硝酸盐（NO_3〜-）和高氯酸盐（C1O_4〜-）的能力。在开始运营的第五年进行采样之前，将含有C1O4的高速公路安全照明灯浸入进水管，将流入的C1O4〜浓度提高到33.7μg/ L。在超过1-2 mg / L NO_3〜-N的存在下，C10_4〜-的去除率受到抑制，但在NO_3〜–耗尽后，其去除率迅速增加至约60μg/ L / d。随后在运行的第六年和第七年测量的硝酸盐去除率随温度在2至16 mg N / L / d的范围内变化，但仍与第二年测量的速度相似。此外，在整个监测期间内，未检测到粗芯层的水力传导率（K）（0.5

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  • 来源
    《Ground Water Monitoring & Remediation》 |2009年第2期|87-94|共8页
  • 作者

    W.D. Robertson; C.J. Ptacek; S.J. Brown;

  • 作者单位

    Department of Earth and Environmental Sciences, University of Water-loo, Waterloo, ON, N2L 3G1, Canada (519) 885-1211;

    Department of Earth and Environmen-tal Sciences, University of Waterloo, Waterloo, ON, N2L 3G1, Can-ada, and National Water Research Institute, Environment Canada,Burlington, ON, L7R 4A6, Canada;

    National Water Research Institute,Environment Canada, Burlington, ON, L7R 4A6, Canada;

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