Speciation Characteristics and Ecological Risk Assessment of Heavy Metals in Municipal Sludge of Huainan, China

In order to fully understand the morphological characteristics and pollution status of heavy metals in the dewatered sludge of Huainan Municipal sewage treatment plant, the physical and chemical properties were analyzed, and the content and occurrence forms of heavy metals (As, Cu, Zn, Pb, Cd, Cr, a...

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Autores principales:	Mu You, Yunhu Hu, Yule Yan, Jie Yao
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	heavy metals sludge speciation characteristics ecological risk assessment Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/bad6762e2d8e49d7b2cbca84effec030
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spelling	oai:doaj.org-article:bad6762e2d8e49d7b2cbca84effec0302021-11-11T18:39:20ZSpeciation Characteristics and Ecological Risk Assessment of Heavy Metals in Municipal Sludge of Huainan, China10.3390/molecules262167111420-3049https://doaj.org/article/bad6762e2d8e49d7b2cbca84effec0302021-11-01T00:00:00Zhttps://www.mdpi.com/1420-3049/26/21/6711https://doaj.org/toc/1420-3049In order to fully understand the morphological characteristics and pollution status of heavy metals in the dewatered sludge of Huainan Municipal sewage treatment plant, the physical and chemical properties were analyzed, and the content and occurrence forms of heavy metals (As, Cu, Zn, Pb, Cd, Cr, and Ni) in the sludge were studied using the geological accumulation method (Igeo), risk assessment coding method (RAC), and potential ecological risk index method to evaluate the ecological risk. The results showed that the municipal sludge in Huainan was rich in nutrients, with good prospects for agricultural utilization. There were differences in the morphological distributions of different heavy metals. The <i>Igeo</i> values for Ni, As, Cr, and Pb were below 0. The results of RAC indicated that the risk level of Cr in sludge was a low risk, and those of other heavy metals were moderate risks. The potential ecological risk of Cd had the highest potential ecological risk, and the other six metals were of low ecological risk. This conclusion can provide basic data and a theoretical reference for the comprehensive utilization of sludge in sewage treatment plants.Mu YouYunhu HuYule YanJie YaoMDPI AGarticleheavy metalssludgespeciation characteristicsecological risk assessmentOrganic chemistryQD241-441ENMolecules, Vol 26, Iss 6711, p 6711 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	heavy metals sludge speciation characteristics ecological risk assessment Organic chemistry QD241-441
spellingShingle	heavy metals sludge speciation characteristics ecological risk assessment Organic chemistry QD241-441 Mu You Yunhu Hu Yule Yan Jie Yao Speciation Characteristics and Ecological Risk Assessment of Heavy Metals in Municipal Sludge of Huainan, China
description	In order to fully understand the morphological characteristics and pollution status of heavy metals in the dewatered sludge of Huainan Municipal sewage treatment plant, the physical and chemical properties were analyzed, and the content and occurrence forms of heavy metals (As, Cu, Zn, Pb, Cd, Cr, and Ni) in the sludge were studied using the geological accumulation method (Igeo), risk assessment coding method (RAC), and potential ecological risk index method to evaluate the ecological risk. The results showed that the municipal sludge in Huainan was rich in nutrients, with good prospects for agricultural utilization. There were differences in the morphological distributions of different heavy metals. The <i>Igeo</i> values for Ni, As, Cr, and Pb were below 0. The results of RAC indicated that the risk level of Cr in sludge was a low risk, and those of other heavy metals were moderate risks. The potential ecological risk of Cd had the highest potential ecological risk, and the other six metals were of low ecological risk. This conclusion can provide basic data and a theoretical reference for the comprehensive utilization of sludge in sewage treatment plants.
format	article
author	Mu You Yunhu Hu Yule Yan Jie Yao
author_facet	Mu You Yunhu Hu Yule Yan Jie Yao
author_sort	Mu You
title	Speciation Characteristics and Ecological Risk Assessment of Heavy Metals in Municipal Sludge of Huainan, China
title_short	Speciation Characteristics and Ecological Risk Assessment of Heavy Metals in Municipal Sludge of Huainan, China
title_full	Speciation Characteristics and Ecological Risk Assessment of Heavy Metals in Municipal Sludge of Huainan, China
title_fullStr	Speciation Characteristics and Ecological Risk Assessment of Heavy Metals in Municipal Sludge of Huainan, China
title_full_unstemmed	Speciation Characteristics and Ecological Risk Assessment of Heavy Metals in Municipal Sludge of Huainan, China
title_sort	speciation characteristics and ecological risk assessment of heavy metals in municipal sludge of huainan, china
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/bad6762e2d8e49d7b2cbca84effec030
work_keys_str_mv	AT muyou speciationcharacteristicsandecologicalriskassessmentofheavymetalsinmunicipalsludgeofhuainanchina AT yunhuhu speciationcharacteristicsandecologicalriskassessmentofheavymetalsinmunicipalsludgeofhuainanchina AT yuleyan speciationcharacteristicsandecologicalriskassessmentofheavymetalsinmunicipalsludgeofhuainanchina AT jieyao speciationcharacteristicsandecologicalriskassessmentofheavymetalsinmunicipalsludgeofhuainanchina
_version_	1718431783829110784

Speciation Characteristics and Ecological Risk Assessment of Heavy Metals in Municipal Sludge of Huainan, China

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