Environmental Sanitation Engineering ›› 2025, Vol. 33 ›› Issue (5): 92-96.doi: 10.19841/j.cnki.hjwsgc.2025.05.013

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Research on Biodegradable Treatment of Membrane Concentrate of Landfill Leachate

GUO Yajiao   

  1. Xiamen Junhong Environmental Solid Waste Disposal Co. Ltd.
  • Online:2025-10-27 Published:2025-10-27

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Abstract: Taking mixed solution of the nanofiltration concentrated solution pre-treated by flocculation sedimentation + electrolysis process, and reverse osmosis concentrated solution with mixing ratio of 2∶3 as the research object. Adopting the combined process of A/O-MBR + Fenton deep treatment, with 30 mg/L sodium chloride acclimatized sludge as the seed sludge, the removal effect of the main pollutants such as COD and total nitrogen in the mixed solution of nanofiltration and reverse osmosis concentrate was studied. The results showed that the effluent after the combined treatment process could meet the discharge requirements of table 4 in the GB 16889—2024 Standard for Pollution Control on the Landfill Site of Municipal Solid Waste.

Key words: leachate, nanofiltration, reverse osmosis, concentrate, flocculation, electrolysis, A/O-MBR, COD, total nitrogen, removal rate

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