Effect of magnetic iron-zirconium modified zeolite on the different phosphorus forms in river sediment under aerobic and anoxic conditions

In this study, a magnetic iron-zirconium modified zeolite (FeZrMZ) was synthesized. Through sediment culture experiments, the influence of the addition of modified materials on the migration and transformation of phosphorus in river sediments was investigated. The results showed that the modified ze...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Chunlei Wang, Herong Gui, Chen Li, Jiayu Chen, Chen Chen
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	magnetic iron-zirconium modified zeolite most variable p forms phosphorus migration sediment Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/569bb11be7f44c7e856f1d84bf851522
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:569bb11be7f44c7e856f1d84bf851522
record_format	dspace
spelling	oai:doaj.org-article:569bb11be7f44c7e856f1d84bf8515222021-11-06T11:18:26ZEffect of magnetic iron-zirconium modified zeolite on the different phosphorus forms in river sediment under aerobic and anoxic conditions0273-12231996-973210.2166/wst.2021.271https://doaj.org/article/569bb11be7f44c7e856f1d84bf8515222021-08-01T00:00:00Zhttp://wst.iwaponline.com/content/84/4/941https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732In this study, a magnetic iron-zirconium modified zeolite (FeZrMZ) was synthesized. Through sediment culture experiments, the influence of the addition of modified materials on the migration and transformation of phosphorus in river sediments was investigated. The results showed that the modified zeolite could not only effectively reduce the phosphorus concentration in the overlying water, but also significantly reduce the phosphorus concentration in the pore water of sediments. The addition of modified zeolite makes the unstable weakly adsorbed phosphorus (NH4Cl-P) and redox phosphorus (BD-P) transform into the more stable metal oxide-bound phosphorus (NaOH-P) and very stable residual phosphorus (Res-P). The four types of bioavailable phosphorus (BAP), including water-soluble phosphorus (WSP), readily desorbable phosphorus (RDP), algae-available phosphorus (AAP), and NaHCO3 extractable phosphorus (Olsen-P). Under anoxic conditions, they were reduced by 53.5%, 14.1%, 23.8%, and 49.9% respectively. Under aerobic conditions, they were reduced by 23.2%, 16.6%, 32.1%, and 50.0%. The addition of magnetic iron-zirconium modified zeolite could clearly reduce the release potential of phosphorus in sediment, and it could be recovered through the action of an external magnetic field, so it could be used as an effective sediment modifier to control the sediment release of phosphorus. HIGHLIGHTS Synthesize and characterize FeZrMZ, which has a good magnetic separation ability.; FeZrMZ can effectively reduce the concentration of phosphorus in overlying water and interstitial water.; FeZrMZ can convert unstable phosphorus in sediments into stable phosphorus.;Chunlei WangHerong GuiChen LiJiayu ChenChen ChenIWA Publishingarticlemagnetic iron-zirconium modified zeolitemost variable p formsphosphorus migrationsedimentEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 84, Iss 4, Pp 941-953 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	magnetic iron-zirconium modified zeolite most variable p forms phosphorus migration sediment Environmental technology. Sanitary engineering TD1-1066
spellingShingle	magnetic iron-zirconium modified zeolite most variable p forms phosphorus migration sediment Environmental technology. Sanitary engineering TD1-1066 Chunlei Wang Herong Gui Chen Li Jiayu Chen Chen Chen Effect of magnetic iron-zirconium modified zeolite on the different phosphorus forms in river sediment under aerobic and anoxic conditions
description	In this study, a magnetic iron-zirconium modified zeolite (FeZrMZ) was synthesized. Through sediment culture experiments, the influence of the addition of modified materials on the migration and transformation of phosphorus in river sediments was investigated. The results showed that the modified zeolite could not only effectively reduce the phosphorus concentration in the overlying water, but also significantly reduce the phosphorus concentration in the pore water of sediments. The addition of modified zeolite makes the unstable weakly adsorbed phosphorus (NH4Cl-P) and redox phosphorus (BD-P) transform into the more stable metal oxide-bound phosphorus (NaOH-P) and very stable residual phosphorus (Res-P). The four types of bioavailable phosphorus (BAP), including water-soluble phosphorus (WSP), readily desorbable phosphorus (RDP), algae-available phosphorus (AAP), and NaHCO3 extractable phosphorus (Olsen-P). Under anoxic conditions, they were reduced by 53.5%, 14.1%, 23.8%, and 49.9% respectively. Under aerobic conditions, they were reduced by 23.2%, 16.6%, 32.1%, and 50.0%. The addition of magnetic iron-zirconium modified zeolite could clearly reduce the release potential of phosphorus in sediment, and it could be recovered through the action of an external magnetic field, so it could be used as an effective sediment modifier to control the sediment release of phosphorus. HIGHLIGHTS Synthesize and characterize FeZrMZ, which has a good magnetic separation ability.; FeZrMZ can effectively reduce the concentration of phosphorus in overlying water and interstitial water.; FeZrMZ can convert unstable phosphorus in sediments into stable phosphorus.;
format	article
author	Chunlei Wang Herong Gui Chen Li Jiayu Chen Chen Chen
author_facet	Chunlei Wang Herong Gui Chen Li Jiayu Chen Chen Chen
author_sort	Chunlei Wang
title	Effect of magnetic iron-zirconium modified zeolite on the different phosphorus forms in river sediment under aerobic and anoxic conditions
title_short	Effect of magnetic iron-zirconium modified zeolite on the different phosphorus forms in river sediment under aerobic and anoxic conditions
title_full	Effect of magnetic iron-zirconium modified zeolite on the different phosphorus forms in river sediment under aerobic and anoxic conditions
title_fullStr	Effect of magnetic iron-zirconium modified zeolite on the different phosphorus forms in river sediment under aerobic and anoxic conditions
title_full_unstemmed	Effect of magnetic iron-zirconium modified zeolite on the different phosphorus forms in river sediment under aerobic and anoxic conditions
title_sort	effect of magnetic iron-zirconium modified zeolite on the different phosphorus forms in river sediment under aerobic and anoxic conditions
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/569bb11be7f44c7e856f1d84bf851522
work_keys_str_mv	AT chunleiwang effectofmagneticironzirconiummodifiedzeoliteonthedifferentphosphorusformsinriversedimentunderaerobicandanoxicconditions AT heronggui effectofmagneticironzirconiummodifiedzeoliteonthedifferentphosphorusformsinriversedimentunderaerobicandanoxicconditions AT chenli effectofmagneticironzirconiummodifiedzeoliteonthedifferentphosphorusformsinriversedimentunderaerobicandanoxicconditions AT jiayuchen effectofmagneticironzirconiummodifiedzeoliteonthedifferentphosphorusformsinriversedimentunderaerobicandanoxicconditions AT chenchen effectofmagneticironzirconiummodifiedzeoliteonthedifferentphosphorusformsinriversedimentunderaerobicandanoxicconditions
_version_	1718443729948246016

Effect of magnetic iron-zirconium modified zeolite on the different phosphorus forms in river sediment under aerobic and anoxic conditions

Ejemplares similares