Achievement of High Rate Nitritation with Aerobic Granular Sludge Reactors Enhanced by Sludge Recirculation Events

A ratio control strategy has been used to demonstrate the feasibility of this automatic control procedure for the achievement of stable full and partial nitritation. The control strategy assured constant ratio between the dissolved oxygen (DO) and the total ammonia nitrogen (TAN) concentrations in t...

Full description

Bibliographic Details
Main Authors:	Zulkifly, Jemaat, Tora, Josep Anton, Bartroli, Albert, Carrera, Julian, Perez, Julio
Format:	Article
Language:	English
Published:	Springer 2015
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/9340/ http://umpir.ump.edu.my/id/eprint/9340/ http://umpir.ump.edu.my/id/eprint/9340/ http://umpir.ump.edu.my/id/eprint/9340/1/fkksa-2015-zulkifly-Achievement%20of%20High%20Rate.pdf

id	ump-9340
recordtype	eprints
spelling	ump-93402015-06-19T01:30:58Z http://umpir.ump.edu.my/id/eprint/9340/ Achievement of High Rate Nitritation with Aerobic Granular Sludge Reactors Enhanced by Sludge Recirculation Events Zulkifly, Jemaat Tora, Josep Anton Bartroli, Albert Carrera, Julian Perez, Julio TP Chemical technology A ratio control strategy has been used to demonstrate the feasibility of this automatic control procedure for the achievement of stable full and partial nitritation. The control strategy assured constant ratio between the dissolved oxygen (DO) and the total ammonia nitrogen (TAN) concentrations in the bulk liquid of aerobic granular sludge reactors operating in continuous mode. Three different set-ups with different reactor capacities were used (3, 110, and 150 L). High strength synthetic wastewaters and reject water were tested with similar performance. Achieved nitrogen loading rates ranged between 0.4 and 6.1 kgN·m−3·d−1, at temperatures between 20°C and 30°C. Granular sludge and nitritation were stable in the long term continuous operation of the reactors. Suitable stable effluent for Anammox has been obtained using the desired TAN setpoint (i.e. 50% of influent ammonium oxidation). An existing biofilm model developed incorporating the implemented control loops and validated in a previous publication was used to investigate the effects of the ammonium concentration of the influent and the biofilm density on the achievement of full nitritation. The model demonstrated how sludge recirculation events led to a stable and significant increase of the biomass concentration in the reactor, which in turn resulted in the achievement of high nitrogen loading rates, due to the action of the control strategy. The model predicted an enhancement of stable full nitritation at higher ammonium concentrations in the influent. Poor influence of the biofilm density in the achievement of full nitritation was predicted with the model. Springer 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/9340/1/fkksa-2015-zulkifly-Achievement%20of%20High%20Rate.pdf Zulkifly, Jemaat and Tora, Josep Anton and Bartroli, Albert and Carrera, Julian and Perez, Julio (2015) Achievement of High Rate Nitritation with Aerobic Granular Sludge Reactors Enhanced by Sludge Recirculation Events. Frontiers of Environmental Science & Engineering, 9 (3). pp. 528-533. ISSN 2095-2201 http://dx.doi.org/10.1007/s11783-014-0641-5 DOI: 10.1007/s11783-014-0641-5
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Zulkifly, Jemaat Tora, Josep Anton Bartroli, Albert Carrera, Julian Perez, Julio Achievement of High Rate Nitritation with Aerobic Granular Sludge Reactors Enhanced by Sludge Recirculation Events
description	A ratio control strategy has been used to demonstrate the feasibility of this automatic control procedure for the achievement of stable full and partial nitritation. The control strategy assured constant ratio between the dissolved oxygen (DO) and the total ammonia nitrogen (TAN) concentrations in the bulk liquid of aerobic granular sludge reactors operating in continuous mode. Three different set-ups with different reactor capacities were used (3, 110, and 150 L). High strength synthetic wastewaters and reject water were tested with similar performance. Achieved nitrogen loading rates ranged between 0.4 and 6.1 kgN·m−3·d−1, at temperatures between 20°C and 30°C. Granular sludge and nitritation were stable in the long term continuous operation of the reactors. Suitable stable effluent for Anammox has been obtained using the desired TAN setpoint (i.e. 50% of influent ammonium oxidation). An existing biofilm model developed incorporating the implemented control loops and validated in a previous publication was used to investigate the effects of the ammonium concentration of the influent and the biofilm density on the achievement of full nitritation. The model demonstrated how sludge recirculation events led to a stable and significant increase of the biomass concentration in the reactor, which in turn resulted in the achievement of high nitrogen loading rates, due to the action of the control strategy. The model predicted an enhancement of stable full nitritation at higher ammonium concentrations in the influent. Poor influence of the biofilm density in the achievement of full nitritation was predicted with the model.
format	Article
author	Zulkifly, Jemaat Tora, Josep Anton Bartroli, Albert Carrera, Julian Perez, Julio
author_facet	Zulkifly, Jemaat Tora, Josep Anton Bartroli, Albert Carrera, Julian Perez, Julio
author_sort	Zulkifly, Jemaat
title	Achievement of High Rate Nitritation with Aerobic Granular Sludge Reactors Enhanced by Sludge Recirculation Events
title_short	Achievement of High Rate Nitritation with Aerobic Granular Sludge Reactors Enhanced by Sludge Recirculation Events
title_full	Achievement of High Rate Nitritation with Aerobic Granular Sludge Reactors Enhanced by Sludge Recirculation Events
title_fullStr	Achievement of High Rate Nitritation with Aerobic Granular Sludge Reactors Enhanced by Sludge Recirculation Events
title_full_unstemmed	Achievement of High Rate Nitritation with Aerobic Granular Sludge Reactors Enhanced by Sludge Recirculation Events
title_sort	achievement of high rate nitritation with aerobic granular sludge reactors enhanced by sludge recirculation events
publisher	Springer
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/9340/ http://umpir.ump.edu.my/id/eprint/9340/ http://umpir.ump.edu.my/id/eprint/9340/ http://umpir.ump.edu.my/id/eprint/9340/1/fkksa-2015-zulkifly-Achievement%20of%20High%20Rate.pdf
first_indexed	2023-09-18T22:07:49Z
last_indexed	2023-09-18T22:07:49Z
_version_	1777414826203545600

Achievement of High Rate Nitritation with Aerobic Granular Sludge Reactors Enhanced by Sludge Recirculation Events

Similar Items