التفاصيل البيبلوغرافية
| العنوان: |
An Innovative Process for Mature Landfill Leachate and Waste Activated Sludge Simultaneous Treatment Based on Partial Nitrification, In Situ Fermentation, and Anammox (PNFA) |
| المؤلفون: |
Fangzhai Zhang (11873272), Yongzhen Peng (2052658), Zhong Wang (132073), Hao Jiang (95017), Shang Ren (8926118), Jingang Qiu (11873275), Liang Zhang (41392) |
| سنة النشر: |
1753 |
| المجموعة: |
Smithsonian Institution: Digital Repository |
| مصطلحات موضوعية: |
Microbiology, Genetics, Molecular Biology, Biotechnology, Ecology, Developmental Biology, Plant Biology, Space Science, Environmental Sciences not elsewhere classified, Biological Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, mature landfill leachate, intermittent aeration strategies, generated nitrate reduced, effluent total nitrogen, candidatus brocadia <, unwanted fermentation metabolites, anammox significantly contributed, anammox bacteria (<, 61 ± 0, nitrogen reduction rates, 9 %, respectively, 2 ± 0, innovative partial nitrification, 2 ± 3, 2 , partial nitrification, thauera <, nitrogen removal |
| Time: |
2 |
| الوصف: |
An innovative partial nitrification, in situ fermentation, and Anammox (PNFA) system was developed to achieve mature landfill leachate and waste activated sludge simultaneous treatment. Three separate sequencing batch reactors (SBRs) were used for partial nitrification (PN-SBR), integrated fermentation–denitrification (IFD-SBR), and partial nitrification–Anammox (PNA-SBR). After 200 days of continuous operation, a satisfactory nitrogen removal efficiency (NRE) of 99.2 ± 0.1% was obtained, with an effluent total nitrogen (TN) of 15.2 ± 3.2 mg/L. In IFD-SBR, the volatile fatty acids generated from fermentation drove efficient denitrification, obtaining sludge and nitrogen reduction rates of 4.2 ± 0.7 and 0.61 ± 0.04 kg/m 3 ·day, respectively. Furthermore, unwanted fermentation metabolites (134.1 mg/L NH 4 + -N) were further treated by PNA-SBR using a combination of step-feed and intermittent aeration strategies. In PNA-SBR, Anammox significantly contributed to 82.1% nitrogen removal, and Anammox bacteria ( Candidatus Brocadia , 2.3%) mutually benefited with partially denitrifying microorganisms ( Thauera , 4.2%), with 66.3% of generated nitrate reduced to nitrite and then reutilized in situ by Anammox. Compared with the conventional nitrification–denitrification process, PNFA reduced oxygen energy consumption, external carbon source dosage, and CO 2 emission by 21.3, 100, and 38.9%, respectively, and obtained 50.1% external WAS reduction efficiency. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| Relation: |
https://figshare.com/articles/journal_contribution/An_Innovative_Process_for_Mature_Landfill_Leachate_and_Waste_Activated_Sludge_Simultaneous_Treatment_Based_on_Partial_Nitrification_In_Situ_Fermentation_and_Anammox_PNFA_/17430715 |
| DOI: |
10.1021/acs.est.1c06049.s001 |
| الاتاحة: |
https://doi.org/10.1021/acs.est.1c06049.s001 |
| Rights: |
CC BY-NC 4.0 |
| رقم الانضمام: |
edsbas.D9B85745 |
| قاعدة البيانات: |
BASE |