FANJun-hao,WANGXiao-jun,ZHOUSong-wei,et al.Application of Anaerobic Ammonia Oxidation in Liquid Ammonia Light Wastewater Treatment Project[J].China Water & Wastewater,2024,40(9):26-30.
Application of Anaerobic Ammonia Oxidation in Liquid Ammonia Light Wastewater Treatment Project
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第9期
Page:
26-30
Column:
Date of publication:
2024-05-01
- Keywords:
- anaerobic ammonia oxidation; liquid ammonia light wastewater; high-concentration ammonia nitrogen; engineering application
- Abstract:
- This paper investigated the performance of anaerobic ammonia oxidation process for treating textile liquid ammonia light wastewater with high ammonia nitrogen in a full-scale project. The full-scale system was started in only 10 days by continuous inoculation of biofilm-coated filler and anaerobic ammonia oxidation sludge. Through selectively inhibiting nitrite oxidizing bacteria (NOB) with free ammonia (FA), the stable partial nitrification of textile liquid ammonia light wastewater was achieved, and the average nitrite nitrogen accumulation rate (NAR) was 93%. The doubling time of ammonia nitrogen removal load (ARR) of the system was estimated to be only 9 days, and the maximum ARR was 0.942 kg/(m3·d). According to the calculation of chemical and power consumptions, the operational cost of anaerobic ammonia oxidation process for treating textile liquid ammonia light wastewater was only 15.6 yuan/kgNH4+-N.
Last Update:
2024-05-01