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Aerobic ammonia-nitrogen oxidation during the treatment of hazardous waste leachate.

机译：有害垃圾渗滤液处理过程中的好氧氨氮氧化。

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摘要

The purpose of this work was to determine if an anaerobic/aerobic treatment process could effectively process leachate from a class I hazardous waste landfill. Initial treatment of the leachate was provided by fluidized bed granular activated carbon (GAC) anaerobic reactors with suspended growth aerobic reactors polishing the effluent. One of the primary purposes of the aerobic treatment phase was the biological removal of ammonia-nitrogen from the waste stream. Nitrification initially occurred in the second step of a two-stage aerobic treatment process. The two-stage process was subsequently dropped when complete nitrification was established in what was expected to be the carbonaceous first stage. A single-stage combined carbonaceous/nitrogenous oxidation process was used for the duration of the project.; Complete nitrification was established across this aerobic reactor with an efficiency of 98 percent. The ammonia-nitrogen concentration was oxidized to less than 1 mg/l in nine hours. The aerobic reactors were run as sequential batch reactors with an aeration time of 23 hours. The operating parameters in the reactors were nearly ideal for nitrification with a pH of 8.4 and temperature of 18{dollar}spcirc{dollar}C.
机译：这项工作的目的是确定厌氧/好氧处理过程是否可以有效地处理I类危险废物填埋场的渗滤液。渗滤液的初始处理是通过流化床颗粒活性炭（GAC）厌氧反应器提供的，其中悬浮生长的需氧反应器可对废水进行抛光。有氧处理阶段的主要目的之一是从废物流中生物去除氨氮。硝化作用最初发生在两阶段好氧处理过程的第二步中。当在预期为碳质的第一阶段建立了完全的硝化作用时，随后放弃了两阶段过程。在项目进行期间，采用了单级碳/氮联合氧化工艺。在该好氧反应器中建立了完全硝化作用，效率为98％。氨氮浓度在9小时内被氧化至小于1 mg / l。好氧反应器作为顺序分批反应器运行，曝气时间为23小时。反应器中的操作参数几乎是硝化反应的理想选择，pH值为8.4，温度为18spspcirc {dollar} C。

著录项

  • 作者

    Hayes, Kelly Warren.;

  • 作者单位

    Lamar University - Beaumont.;

  • 授予单位 Lamar University - Beaumont.;
  • 学科 Engineering Civil.; Engineering Sanitary and Municipal.; Operations Research.
  • 学位 M.S.
  • 年度 1991
  • 页码 107 p.
  • 总页数 107
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 建筑科学;建筑科学;运筹学;
  • 关键词

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