Zinc and cadmium adsorption from wastewater using hydroxyapatite synthesized from flue gas desulfurization waste

The purpose of this work is to produce an alternative cost-effective adsorbent to remove zinc and cadmium from wastewater using hydroxyapatite (HAP) synthesized with hydrothermal method from FGD (Flue gas desulfurization) waste generated by two different coal power plants. The effects of FGD type (C...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Sıla Kızıltas Demir, Nurcan Tugrul
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	adsorption cadmium flue gas desulfurization hydroxyapatite waste zinc Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/adf56f6e83314714a287c13a920113de
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:adf56f6e83314714a287c13a920113de
record_format	dspace
spelling	oai:doaj.org-article:adf56f6e83314714a287c13a920113de2021-11-06T11:20:30ZZinc and cadmium adsorption from wastewater using hydroxyapatite synthesized from flue gas desulfurization waste0273-12231996-973210.2166/wst.2021.301https://doaj.org/article/adf56f6e83314714a287c13a920113de2021-09-01T00:00:00Zhttp://wst.iwaponline.com/content/84/5/1280https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732The purpose of this work is to produce an alternative cost-effective adsorbent to remove zinc and cadmium from wastewater using hydroxyapatite (HAP) synthesized with hydrothermal method from FGD (Flue gas desulfurization) waste generated by two different coal power plants. The effects of FGD type (Cayırhan and Orhaneli) and molar ratio (H3PO4/CaSO4) (0.6–4.79) on HAP synthesis were investigated. Afterwards, effects of the adsorbent dose (1–2 g/L), heavy metal concentration (30, 40, 50 mg/L) and contact time (1, 2, 3, 4 h) on zinc and cadmium adsorption yield from synthetic wastewater using produced HAP were examined. FGD waste and synthesized FGD-HAP were characterized by X-Ray Diffraction (XRD), Fourier Transformed Infrared Spectroscopy (FT-IR), Scanning Electron Microscope (SEM) and Brunauer-Emmett-Teller (BET) instruments. The zinc and cadmium concentration was studied by Inductively coupled plasma atomic emission spectroscopy (ICP-AES). Maximum zinc adsorption capacity of the Cayırhan FGD-HAP was 49.97 and 49.99 mg/L, Orhaneli FGD-HAP was 49.96 and 49.99 mg/L, for 1 g/L and 2 g/L adsorbent dose, respectively, for 50 mg/L heavy metal concentration and 4 h contact time. Maximum cadmium adsorption capacity of the Cayırhan FGD-HAP was 39.98 and 39.99 mg/L, Orhaneli FGD-HAP was 40 and 39.99 mg/L, for 1 g/L and 2 g/L adsorbent dose, respectively, for 40 mg/L heavy metal concentration and 4 h contact time. Adsorption yields were calculated between 98.53% and 100%. The adsorption data were well explained by a second-order kinetic model, and the Freundlich isotherm model fits the equilibrium data. The adsorption results demonstrated that FGD's waste is an effective source to synthesize HAP, which is used as an adsorbent for zinc and cadmium removal from wastewater due to high adsorption capacity. HIGHLIGHTS An alternative FGD-HAP adsorbent was produced to remove Zn and Cd from wastewater.; FGD waste generated by coal power plants was used for FGD-HAP synthesis.; The heterogeneous and porous nature confirms that FGD-HAP is a successful adsorbent.; The maximum removal efficiency of the FGD-HAPs was calculated between 98.53% and 100%.; FGD waste pollution was eliminated and FGD waste was changed into valuable product.;Sıla Kızıltas DemirNurcan TugrulIWA Publishingarticleadsorptioncadmiumflue gas desulfurizationhydroxyapatitewastezincEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 84, Iss 5, Pp 1280-1292 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	adsorption cadmium flue gas desulfurization hydroxyapatite waste zinc Environmental technology. Sanitary engineering TD1-1066
spellingShingle	adsorption cadmium flue gas desulfurization hydroxyapatite waste zinc Environmental technology. Sanitary engineering TD1-1066 Sıla Kızıltas Demir Nurcan Tugrul Zinc and cadmium adsorption from wastewater using hydroxyapatite synthesized from flue gas desulfurization waste
description	The purpose of this work is to produce an alternative cost-effective adsorbent to remove zinc and cadmium from wastewater using hydroxyapatite (HAP) synthesized with hydrothermal method from FGD (Flue gas desulfurization) waste generated by two different coal power plants. The effects of FGD type (Cayırhan and Orhaneli) and molar ratio (H3PO4/CaSO4) (0.6–4.79) on HAP synthesis were investigated. Afterwards, effects of the adsorbent dose (1–2 g/L), heavy metal concentration (30, 40, 50 mg/L) and contact time (1, 2, 3, 4 h) on zinc and cadmium adsorption yield from synthetic wastewater using produced HAP were examined. FGD waste and synthesized FGD-HAP were characterized by X-Ray Diffraction (XRD), Fourier Transformed Infrared Spectroscopy (FT-IR), Scanning Electron Microscope (SEM) and Brunauer-Emmett-Teller (BET) instruments. The zinc and cadmium concentration was studied by Inductively coupled plasma atomic emission spectroscopy (ICP-AES). Maximum zinc adsorption capacity of the Cayırhan FGD-HAP was 49.97 and 49.99 mg/L, Orhaneli FGD-HAP was 49.96 and 49.99 mg/L, for 1 g/L and 2 g/L adsorbent dose, respectively, for 50 mg/L heavy metal concentration and 4 h contact time. Maximum cadmium adsorption capacity of the Cayırhan FGD-HAP was 39.98 and 39.99 mg/L, Orhaneli FGD-HAP was 40 and 39.99 mg/L, for 1 g/L and 2 g/L adsorbent dose, respectively, for 40 mg/L heavy metal concentration and 4 h contact time. Adsorption yields were calculated between 98.53% and 100%. The adsorption data were well explained by a second-order kinetic model, and the Freundlich isotherm model fits the equilibrium data. The adsorption results demonstrated that FGD's waste is an effective source to synthesize HAP, which is used as an adsorbent for zinc and cadmium removal from wastewater due to high adsorption capacity. HIGHLIGHTS An alternative FGD-HAP adsorbent was produced to remove Zn and Cd from wastewater.; FGD waste generated by coal power plants was used for FGD-HAP synthesis.; The heterogeneous and porous nature confirms that FGD-HAP is a successful adsorbent.; The maximum removal efficiency of the FGD-HAPs was calculated between 98.53% and 100%.; FGD waste pollution was eliminated and FGD waste was changed into valuable product.;
format	article
author	Sıla Kızıltas Demir Nurcan Tugrul
author_facet	Sıla Kızıltas Demir Nurcan Tugrul
author_sort	Sıla Kızıltas Demir
title	Zinc and cadmium adsorption from wastewater using hydroxyapatite synthesized from flue gas desulfurization waste
title_short	Zinc and cadmium adsorption from wastewater using hydroxyapatite synthesized from flue gas desulfurization waste
title_full	Zinc and cadmium adsorption from wastewater using hydroxyapatite synthesized from flue gas desulfurization waste
title_fullStr	Zinc and cadmium adsorption from wastewater using hydroxyapatite synthesized from flue gas desulfurization waste
title_full_unstemmed	Zinc and cadmium adsorption from wastewater using hydroxyapatite synthesized from flue gas desulfurization waste
title_sort	zinc and cadmium adsorption from wastewater using hydroxyapatite synthesized from flue gas desulfurization waste
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/adf56f6e83314714a287c13a920113de
work_keys_str_mv	AT sılakızıltasdemir zincandcadmiumadsorptionfromwastewaterusinghydroxyapatitesynthesizedfromfluegasdesulfurizationwaste AT nurcantugrul zincandcadmiumadsorptionfromwastewaterusinghydroxyapatitesynthesizedfromfluegasdesulfurizationwaste
_version_	1718443753602023424

Zinc and cadmium adsorption from wastewater using hydroxyapatite synthesized from flue gas desulfurization waste

Ejemplares similares