A high-rate and stable nitrogen removal from reject water in a full-scale two-stage AMX® system

This paper reports long-term performance of a two-stage AMX® system with a capacity of 70 m3/d treating actual reject water. An air-lift granulation reactor performed partial nitritation (PN–AGR) at an average nitrogen loading rate (NLR) of 3.1 kgN/m3-d, producing an average effluent NO2-–N/NH4+–N r...

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Autores principales:	Minki Jung, Taeseok Oh, Daehwan Rhu, Jon Liberzon, S. Joh Kang, Glen T. Daigger, Sungpyo Kim
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	air-lift granulation reactor anaerobic ammonium oxidation high nitrogen loading rate reject water side-stream treatment two-stage amx® system Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/055d5ef1ad3e437296430c0e7eee152c
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spelling	oai:doaj.org-article:055d5ef1ad3e437296430c0e7eee152c2021-11-06T10:42:35ZA high-rate and stable nitrogen removal from reject water in a full-scale two-stage AMX® system0273-12231996-973210.2166/wst.2021.002https://doaj.org/article/055d5ef1ad3e437296430c0e7eee152c2021-02-01T00:00:00Zhttp://wst.iwaponline.com/content/83/3/652https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732This paper reports long-term performance of a two-stage AMX® system with a capacity of 70 m3/d treating actual reject water. An air-lift granulation reactor performed partial nitritation (PN–AGR) at an average nitrogen loading rate (NLR) of 3.1 kgN/m3-d, producing an average effluent NO2-–N/NH4+–N ratio of 1.04. The average nitrogen removal rate of the system was 3.91 kgN/m3-d following an anaerobic ammonium oxidation (Anammox) stage moving bed biofilm reactor (A–MBBR). Although the total nitrogen concentrations in the reject water fluctuated seasonally, overall nitrogen removal efficiency (NRE) of the two-stage AMX® system was very stable at over 87%. The two-stage AMX® system, consisting of a PN–AGR followed by an A–MBBR, operated at a stable NLR of 1.86 kgN/m3-d (1.64 kgN/m3-d including the intermediate tank), which is 1.8 times higher (1.6 times including the intermediate tank) than other commercialized single-stage partial nitritation/Anammox (PN/A) processes (which operate at a NLR of about 1 kgN/m3-d). The PN–AGR was affected by high influent total suspended solids (TSS) loads, but was able to recover within a short period of 4 days, which confirmed that the two-stage PN/A process is resilient to TSS load fluctuations.Minki JungTaeseok OhDaehwan RhuJon LiberzonS. Joh KangGlen T. DaiggerSungpyo KimIWA Publishingarticleair-lift granulation reactoranaerobic ammonium oxidationhigh nitrogen loading ratereject waterside-stream treatmenttwo-stage amx® systemEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 3, Pp 652-663 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	air-lift granulation reactor anaerobic ammonium oxidation high nitrogen loading rate reject water side-stream treatment two-stage amx® system Environmental technology. Sanitary engineering TD1-1066
spellingShingle	air-lift granulation reactor anaerobic ammonium oxidation high nitrogen loading rate reject water side-stream treatment two-stage amx® system Environmental technology. Sanitary engineering TD1-1066 Minki Jung Taeseok Oh Daehwan Rhu Jon Liberzon S. Joh Kang Glen T. Daigger Sungpyo Kim A high-rate and stable nitrogen removal from reject water in a full-scale two-stage AMX® system
description	This paper reports long-term performance of a two-stage AMX® system with a capacity of 70 m3/d treating actual reject water. An air-lift granulation reactor performed partial nitritation (PN–AGR) at an average nitrogen loading rate (NLR) of 3.1 kgN/m3-d, producing an average effluent NO2-–N/NH4+–N ratio of 1.04. The average nitrogen removal rate of the system was 3.91 kgN/m3-d following an anaerobic ammonium oxidation (Anammox) stage moving bed biofilm reactor (A–MBBR). Although the total nitrogen concentrations in the reject water fluctuated seasonally, overall nitrogen removal efficiency (NRE) of the two-stage AMX® system was very stable at over 87%. The two-stage AMX® system, consisting of a PN–AGR followed by an A–MBBR, operated at a stable NLR of 1.86 kgN/m3-d (1.64 kgN/m3-d including the intermediate tank), which is 1.8 times higher (1.6 times including the intermediate tank) than other commercialized single-stage partial nitritation/Anammox (PN/A) processes (which operate at a NLR of about 1 kgN/m3-d). The PN–AGR was affected by high influent total suspended solids (TSS) loads, but was able to recover within a short period of 4 days, which confirmed that the two-stage PN/A process is resilient to TSS load fluctuations.
format	article
author	Minki Jung Taeseok Oh Daehwan Rhu Jon Liberzon S. Joh Kang Glen T. Daigger Sungpyo Kim
author_facet	Minki Jung Taeseok Oh Daehwan Rhu Jon Liberzon S. Joh Kang Glen T. Daigger Sungpyo Kim
author_sort	Minki Jung
title	A high-rate and stable nitrogen removal from reject water in a full-scale two-stage AMX® system
title_short	A high-rate and stable nitrogen removal from reject water in a full-scale two-stage AMX® system
title_full	A high-rate and stable nitrogen removal from reject water in a full-scale two-stage AMX® system
title_fullStr	A high-rate and stable nitrogen removal from reject water in a full-scale two-stage AMX® system
title_full_unstemmed	A high-rate and stable nitrogen removal from reject water in a full-scale two-stage AMX® system
title_sort	high-rate and stable nitrogen removal from reject water in a full-scale two-stage amx® system
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/055d5ef1ad3e437296430c0e7eee152c
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A high-rate and stable nitrogen removal from reject water in a full-scale two-stage AMX® system

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