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首页> 外文期刊>Journal of Hazardous Materials >Acceleration of aged-landfill stabilization by combining partial nitrification and leachate recirculation: A field-scale study
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Acceleration of aged-landfill stabilization by combining partial nitrification and leachate recirculation: A field-scale study

机译：结合部分硝化和渗滤液再循环促进老化垃圾填埋场的稳定化：一项现场研究

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摘要

Leachate recirculation for rapid landfill stabilization can result in the accumulation of high-strength ammonium. An on-site sequencing batch reactor (SBR) was therefore, applied to oxidize the ammonium to nitrite, which was then recirculated to the landfill for denitrification to nitrogen gas. At relatively higher ammonium levels, nitrite accumulated well in the SBR; the nitrite was denitrified stably in the landfill, despite an insufficient biodegradable carbon source in the leachate. As the leachate was recirculated, the methane and carbon dioxide contents produced from the landfill fluctuated, implying that the organic acids and hydrogen produced in the acid production phase acted as the carbon source for denitrification in the landfill. Leachate recirculation combined with ex-situ partial nitrification of the leachate may enhance the biodegradation process by: (a) removing the nitrogen that is contained with the leachate, and (b) accelerating landfill stabilization, because the biodegradation efficiency of landfill waste is increased by supplying sufficient moisture and its byproducts are used as the carbon source for denitrification. In addition, partial nitrification using an SBR has advantages for complete denitrification in the landfill, since the available carbon source is in short supply in aged landfills.
机译：渗滤液再循环以快速稳定垃圾填埋场会导致高强度铵的积累。因此，使用了现场定序分批反应器（SBR）将铵氧化为亚硝酸盐，然后将其再循环至垃圾填埋场以反硝化为氮气。在较高的铵含量下，亚硝酸盐在SBR中的积累良好。尽管渗滤液中可生物降解的碳源不足，但亚硝酸盐已在垃圾填埋场中稳定地反硝化。随着渗滤液的再循环，垃圾填埋场产生的甲烷和二氧化碳含量波动，这意味着在酸生产阶段产生的有机酸和氢充当了垃圾填埋场反硝化的碳源。渗滤液的再循环与渗滤液的异位部分硝化相结合可以通过以下方式增强生物降解过程：（a）去除渗滤液中所含的氮，以及（b）加速垃圾掩埋场的稳定，因为垃圾掩埋场的生物降解效率提高了提供足够的水分及其副产物用作反硝化的碳源。此外，使用SBR进行部分硝化对于垃圾填埋场中的完全脱氮具有优势，因为老化的垃圾填埋场中可用的碳源不足。

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  • 来源
    《Journal of Hazardous Materials》 |2015年第21期|436-444|共9页
  • 作者

    Jinwook Chung; Seungjin Kim; Seungcheon Baek; Nam-Hoon Lee; Seongjun Park; Junghun Lee; Heechang Lee; Wookeun Bae;

  • 作者单位

    R&D Center, Samsung Engineering Co., Ltd., 415-10 Woncheon-dong, Youngtong-gu, Suwon, Gyeonggi-do 443-823, Republic of Korea;

    Department of Civil and Environmental Engineering, Hanyang University, Sa 3-dong, Sangnok-gu, Ansan, Gyeonggi-do 426-791, Republic of Korea;

    Department of Civil and Environmental Engineering, Hanyang University, Sa 3-dong, Sangnok-gu, Ansan, Gyeonggi-do 426-791, Republic of Korea;

    Department of Environmental & Energy Engineering, Anyang University, 22 Samdeok-ro, 37 Beon-gil, Manan-gu, Anyang, Gyeonggi-do 430-714, Republic of Korea;

    Department of Civil and Environmental Engineering, Hanyang University, Sa 3-dong, Sangnok-gu, Ansan, Gyeonggi-do 426-791, Republic of Korea;

    Department of Civil and Environmental Engineering, Hanyang University, Sa 3-dong, Sangnok-gu, Ansan, Gyeonggi-do 426-791, Republic of Korea;

    Department of Civil and Environmental Engineering, Hanyang University, Sa 3-dong, Sangnok-gu, Ansan, Gyeonggi-do 426-791, Republic of Korea;

    Department of Civil and Environmental Engineering, Hanyang University, Sa 3-dong, Sangnok-gu, Ansan, Gyeonggi-do 426-791, Republic of Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Landfill; Leachate recirculation; Sequencing batch reactor (SBR); Stabilization; Nitritation/denitritation;

    机译：垃圾填埋场;渗滤液再循环;测序间歇反应器（SBR）;稳定;亚硝化/反硝化;

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