| Title | Achieving stable anammox process and revealing shift of bacteria during the start-up in landfill leachate treatment |
| Authors | Jia, Chunfang Wu, Lina Yu, Ke Hu, Jincheng Qi, Jiabao Wendy Luo, Anteng |
| Affiliation | Beijing Univ Civil Engn & Architecture, Key Lab Urban Stormwater Syst & Water Environm, Minist Educ, Beijing, Peoples R China Peking Univ, Sch Environm & Energy, Shenzhen Grad Sch, Shenzhen, Peoples R China Univ Auckland, Dept Civil & Environm Engn, Auckland, New Zealand Beijing Univ Civil Engn & Architecture, Key Lab Urban Stormwater Syst & Water Environm, Minist Educ, Beijing 100044, Peoples R China |
| Keywords | NITROGEN REMOVAL PARTIAL NITRITATION/ANAMMOX OXIDIZING BACTERIA DISSOLVED-OXYGEN WASTE-WATER SEWAGE PATHWAY ENERGY |
| Issue Date | Feb-2023 |
| Publisher | WATER ENVIRONMENT RESEARCH |
| Abstract | Partial nitrification-anammox (PN/A) is an energy-efficient technology for nitrogen removal in landfill leachate treatment. Numerous studies have reported successful implementation of the PN/A process and its stable operation under laboratory conditions. One of the primary challenges in PN/A engineering applications is the mass of the seed sludge required for start-up. This study examined the PN/A using a sequence batch reactor (SBR) inoculating a common mixture to treat landfill leachate. After 70 days of operation, the system successfully realized a one-stage PN/A process and maintained a stable ammonium NHthorn 4 removal efficiency of 97.65%+/- 1%, where the effluent of NHthorn 4 and nitrate (NO3-) were less than 4 +/- 1.5 mg L-1 and 10 mg L-1. In addition, the relative abundances of Ca. Kuenenia and Ca. Brocadia, which are typical anaerobic ammonia-oxidizing bacteria (AnAOB), increased from 0.08% to 3.99% (70 days) and 0.01% to 0.45%, respectively. The relative abundances of ammonia-oxidizing bacteria (AOB) Nitrosomonas and Nitrosospira increased from 0.9% to 2.89% and 0.007% to 0.1% (70 days), respectively. Both AnAOB and AOB are important niches of the system. Practitioner Points: _ The research realized PN/A rapidly by inoculating common mixture sludge. _ The experiment successfully enriched AnAOB from 0.09% to 3.89% within 70 days. _ The article revealing the ecological roles of AOB and AnAOB in the landfill leachate treatment. |
| URI | http://hdl.handle.net/20.500.11897/671416 |
| ISSN | 1061-4303 |
| DOI | 10.1002/wer.10841 |
| Indexed | SCI(E) |
| Appears in Collections: | 环境与能源学院 |
