Enhanced denitrification of secondary effluent using composite solid carbon source based on agricultural wastes and synthetic polymers

Solid-phase denitrification is a promising approach to enhance nitrate removal. In this work, polybutylene succinate (PBS) and peanut shell (PS) (with crosslinked polyvinyl alcohol–sodium alginate (PVA-SA) as carrier) were used to prepare a composite solid carbon source (3P) to denitrify the seconda...

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Autores principales:	Zhaoxu Peng, Kun Jiang, Tianyu Lou, Ningqi Niu, Ju Wang
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	carbon release denitrification mechanism nitrogen removal slow-release solid carbon source Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/2b856aa30ba64563b6813004ce2a6417
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spelling	oai:doaj.org-article:2b856aa30ba64563b6813004ce2a64172021-11-06T10:48:07ZEnhanced denitrification of secondary effluent using composite solid carbon source based on agricultural wastes and synthetic polymers0273-12231996-973210.2166/wst.2021.023https://doaj.org/article/2b856aa30ba64563b6813004ce2a64172021-02-01T00:00:00Zhttp://wst.iwaponline.com/content/83/4/886https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732Solid-phase denitrification is a promising approach to enhance nitrate removal. In this work, polybutylene succinate (PBS) and peanut shell (PS) (with crosslinked polyvinyl alcohol–sodium alginate (PVA-SA) as carrier) were used to prepare a composite solid carbon source (3P) to denitrify the secondary effluent. The results showed that for carbon release performance, 3P had not only a large release of organics, like PS, but also the excellent sustainability of PBS. Among the short chain fatty acids released by PBS, PS, PVA-SA and 3P, the percentages of acetic acid were 59.42%, 72.54%, 72.29% and 92.11%, respectively. When 3P was used as external carbon source, denitrification performance could be enhanced with effluent dissolved organic carbon lower than 20 mg/L. The prepared 3P could improve denitrification, from both microbial and kinetic aspects. The relative abundance of Gammaproteobacteria increased from 39.32% to 43.58%, and the half saturation constant of the fitting Monod equation was 21.28 mg/L. The prepared 3P is an ideal carbon source for secondary effluent denitrification. Using multiple crosslinking methods to produce carrier is an effective way to show the properties of each material.Zhaoxu PengKun JiangTianyu LouNingqi NiuJu WangIWA Publishingarticlecarbon releasedenitrification mechanismnitrogen removalslow-releasesolid carbon sourceEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 4, Pp 886-893 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	carbon release denitrification mechanism nitrogen removal slow-release solid carbon source Environmental technology. Sanitary engineering TD1-1066
spellingShingle	carbon release denitrification mechanism nitrogen removal slow-release solid carbon source Environmental technology. Sanitary engineering TD1-1066 Zhaoxu Peng Kun Jiang Tianyu Lou Ningqi Niu Ju Wang Enhanced denitrification of secondary effluent using composite solid carbon source based on agricultural wastes and synthetic polymers
description	Solid-phase denitrification is a promising approach to enhance nitrate removal. In this work, polybutylene succinate (PBS) and peanut shell (PS) (with crosslinked polyvinyl alcohol–sodium alginate (PVA-SA) as carrier) were used to prepare a composite solid carbon source (3P) to denitrify the secondary effluent. The results showed that for carbon release performance, 3P had not only a large release of organics, like PS, but also the excellent sustainability of PBS. Among the short chain fatty acids released by PBS, PS, PVA-SA and 3P, the percentages of acetic acid were 59.42%, 72.54%, 72.29% and 92.11%, respectively. When 3P was used as external carbon source, denitrification performance could be enhanced with effluent dissolved organic carbon lower than 20 mg/L. The prepared 3P could improve denitrification, from both microbial and kinetic aspects. The relative abundance of Gammaproteobacteria increased from 39.32% to 43.58%, and the half saturation constant of the fitting Monod equation was 21.28 mg/L. The prepared 3P is an ideal carbon source for secondary effluent denitrification. Using multiple crosslinking methods to produce carrier is an effective way to show the properties of each material.
format	article
author	Zhaoxu Peng Kun Jiang Tianyu Lou Ningqi Niu Ju Wang
author_facet	Zhaoxu Peng Kun Jiang Tianyu Lou Ningqi Niu Ju Wang
author_sort	Zhaoxu Peng
title	Enhanced denitrification of secondary effluent using composite solid carbon source based on agricultural wastes and synthetic polymers
title_short	Enhanced denitrification of secondary effluent using composite solid carbon source based on agricultural wastes and synthetic polymers
title_full	Enhanced denitrification of secondary effluent using composite solid carbon source based on agricultural wastes and synthetic polymers
title_fullStr	Enhanced denitrification of secondary effluent using composite solid carbon source based on agricultural wastes and synthetic polymers
title_full_unstemmed	Enhanced denitrification of secondary effluent using composite solid carbon source based on agricultural wastes and synthetic polymers
title_sort	enhanced denitrification of secondary effluent using composite solid carbon source based on agricultural wastes and synthetic polymers
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/2b856aa30ba64563b6813004ce2a6417
work_keys_str_mv	AT zhaoxupeng enhanceddenitrificationofsecondaryeffluentusingcompositesolidcarbonsourcebasedonagriculturalwastesandsyntheticpolymers AT kunjiang enhanceddenitrificationofsecondaryeffluentusingcompositesolidcarbonsourcebasedonagriculturalwastesandsyntheticpolymers AT tianyulou enhanceddenitrificationofsecondaryeffluentusingcompositesolidcarbonsourcebasedonagriculturalwastesandsyntheticpolymers AT ningqiniu enhanceddenitrificationofsecondaryeffluentusingcompositesolidcarbonsourcebasedonagriculturalwastesandsyntheticpolymers AT juwang enhanceddenitrificationofsecondaryeffluentusingcompositesolidcarbonsourcebasedonagriculturalwastesandsyntheticpolymers
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Enhanced denitrification of secondary effluent using composite solid carbon source based on agricultural wastes and synthetic polymers

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