High rate nitrogen removal by ANAMMOX internal circulation reactor (IC) for old landfill leachate treatment.

Autor: Phan TN; Faculty of Environment and Natural Resources, University of Technology, Vietnam National University-Ho Chi Minh, Viet Nam., Van Truong TT; Faculty of Environment and Natural Resources, University of Technology, Vietnam National University-Ho Chi Minh, Viet Nam., Ha NB; Faculty of Environment and Natural Resources, University of Technology, Vietnam National University-Ho Chi Minh, Viet Nam., Nguyen PD; Faculty of Environment and Natural Resources, University of Technology, Vietnam National University-Ho Chi Minh, Viet Nam., Bui XT; Faculty of Environment and Natural Resources, University of Technology, Vietnam National University-Ho Chi Minh, Viet Nam. Electronic address: bxthanh@hcmut.edu.vn., Dang BT; Institute of Research and Development, Duy Tan University, Da Nang, Viet Nam; Faculty of Environment and Natural Resources, University of Technology, Vietnam National University-Ho Chi Minh, Viet Nam., Doan VT; Department of Civil and Environmental Engineering, Yonsei University, Seoul, Republic of Korea., Park J; Department of Civil and Environmental Engineering, Yonsei University, Seoul, Republic of Korea., Guo W; Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Broadway, NSW 2007, Australia., Ngo HH; Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Broadway, NSW 2007, Australia. Electronic address: h.ngo@uts.edu.au.
Jazyk: angličtina
Zdroj: Bioresource technology [Bioresour Technol] 2017 Jun; Vol. 234, pp. 281-288. Date of Electronic Publication: 2017 Feb 28.
DOI: 10.1016/j.biortech.2017.02.117
Abstrakt: This study aimed to evaluate the performance of a high rate nitrogen removal lab-scale ANAMMOX reactor, namely Internal Circulation (IC) reactor, for old landfill leachate treatment. The reactor was operated with pre-treated leachate from a pilot Partial Nitritation Reactor (PNR) using a high nitrogen loading rate ranging from 2 to 10kgNm -3 d -1 . High rate removal of nitrogen (9.52±1.11kgNm -3 d -1 ) was observed at an influent nitrogen concentration of 1500mgNL -1 . The specific ANAMMOX activity was found to be 0.598±0.026gN 2 -NgVSS -1 d -1 . Analysis of ANAMMOX granules suggested that 0.5-1.0mm size granular sludge was the dominant group. The results of DNA analysis revealed that Candidatus Kueneniastuttgartiensis was the dominant species (37.45%) in the IC reactor, whereas other species like uncultured Bacteroidetes bacterium only constituted 5.37% in the system, but they were still responsible for removing recalcitrant organic matter.
(Copyright © 2017 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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