DINGXi-ming,MA Dong-jie,KANGJian-cun,et al.Engineering Examples of Full Quantitative Treatment of Leachate from an Aging Landfill[J].China Water & Wastewater,2023,39(12):90-94.
Engineering Examples of Full Quantitative Treatment of Leachate from an Aging Landfill
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第12期
Page:
90-94
Column:
Date of publication:
2023-06-17
- Keywords:
- landfill leachate; full quantitative treatment; concentrate; ozonation
- Abstract:
- The leachate from aging landfill is characterized by high ammonia nitrogen, poor biodegradability and imbalance of C/N ratio. This paper elaborated the full quantitative treatment process of two kinds of leachate in detail exemplified by a synergistic treatment project of leachate from an aging landfill and a waste incineration plant. The design scale of leachate from the landfill is 1 500 m3/d, and that of leachate from the incineration plant is 500 m3/d. The main process consists of anaerobic system, two-stage A/O, external ultrafiltration, nanofiltration and reverse osmosis, the treatment process of nanofiltration concentrate is material film reduction and ozonation, and that of reverse osmosis concentrate is DTRO reduction and submerged combustion evaporation. The project investment is 360 million yuan, and the operating cost is 101.20 yuan/m3. Since the completion of the project, the effluent quality has stably reached the limit in table 2 specified in the Standard for Pollution Control on the Landfill Site of Municipal Solid Waste (GB 16889-2008). The synergistic treatment of the two kinds of leachate reduced the dosage of carbon source and saved the operating cost, and achieved full quantitative treatment of leachate without concentrate discharge.
Last Update:
2023-06-17