• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 54 Issue 1
Feb.  2019
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Article Contents
QIU Zhongping, LI Mingxing, LIU Yang, TANG Jian, WANG Wencan, HUA Jianjun, MENG Tao, TANG Guoxiong. Study on Leachate Recirculation Volume of Aerobic Bioreactor Landfills[J]. Journal of Southwest Jiaotong University, 2019, 54(1): 168-172. doi: 10.3969/j.issn.0258-2724.20180478
Citation: QIU Zhongping, LI Mingxing, LIU Yang, TANG Jian, WANG Wencan, HUA Jianjun, MENG Tao, TANG Guoxiong. Study on Leachate Recirculation Volume of Aerobic Bioreactor Landfills[J]. Journal of Southwest Jiaotong University, 2019, 54(1): 168-172. doi: 10.3969/j.issn.0258-2724.20180478

Study on Leachate Recirculation Volume of Aerobic Bioreactor Landfills

doi: 10.3969/j.issn.0258-2724.20180478
  • Received Date: 01 Jun 2018
  • Rev Recd Date: 20 Jul 2018
  • Available Online: 02 Jan 2019
  • Publish Date: 01 Feb 2019
  • To study the influence of leachate recirculation on the stabilization process of aerobic landfills, an experiment was conducted to assess the variation trend of solid waste and leachate characteristics in an aerobic landfill with different recirculation rates. The landfill period was 122 days. Results showed that the water content of landfill refuse in each reactor remained at about 70% under different leachate recirculation rates. The total organic carbon content, (hemicellulose + cellulose)/lignin ratio(Q), and sedimentation of landfill refuse with 20% recirculation changed fastest in the landfill process. At the end of the landfill period, the mass content and Q of landfill leachate were 8.9%–14.6% and 9.9%–16.9% lower, respectively, than that of other reactors, and the sedimentation was 6.6%–13.3% higher than that of other reactors. The amount of reductive organic matter in the leachate during the whole process with the recirculation volume as 20% was 9.8%, 12.5%, 17.8%, and 14.9% lower than that of 10%, 15%, 30%, and full recirculation, respectively, and the ammonia nitrogen was reduced to 25 mg/L, which met the concentration of ammonia nitrogen discharge in landfill leachate of GB 16889—2008, in 52 d, which was 7–21 d earlier than the other reactors.

     

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