ZHANGXian-xu,XIShi-feng,GUILin-tao,et al.Rapid Start-up of a Pilot-scale PN-Anammox Process for Nitrogen Removal from Aged Landfill Leachate[J].China Water & Wastewater,2024,40(13):68-72.
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Rapid Start-up of a Pilot-scale PN-Anammox Process for Nitrogen Removal from Aged Landfill Leachate

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第40卷 Number: 第13期 Page: 68-72 Column: Date of publication: 2024-07-01
Author(s):
ZHANG　Xian-xu1;  XI　Shi-feng1;  GUI　Lin-tao1;  SHI　Qian-qian1;  CHEN　Zhen?guo2;  FAN　Jun-hao3;  WANG　Xiao-jun3
（1. Wuhan Environment Investment Solid Waste Co. Ltd.， Wuhan 430000， China； 2. School of Environment， South China Normal Uiversity， Guangzhou 510006， China； 3. School of Environment and Energy， South China University of Technology， Guangzhou 510006， China）
Keywords:
aged landfill leachate;  nitritation-denitrification;  Anammox;  rapid start-up
Abstract:
This paper constructed a pilot-scale system consisting of pre-nitritation/denitrification, partial nitritation (PN) and Anammox (A), and investigated its rapid start-up and applicability for removing nitrogen in the aged landfill leachate with low organic pollutants concentration from a landfill. Seeded with existing mature Anammox bacteria, the pilot system achieved a removal of 15 kg/d ammonia nitrogen in just 23 days. After pre-denitrification to remove most of the biodegradable organic pollutants in the leachate, the average removal rates of ammonia nitrogen, total nitrogen, and COD from the aged landfill leachate reached 95.1%, 94.3% and 67.9% respectively. The economic calculations showed that the treatment cost of this process was only 9.3 yuan/kg, which was significantly lower than that of the nitrification-denitrification process.
Last Update: 2024-07-01