Treatment of wastewater from a dairy plant by adsorption using synthesized copper oxide nanoparticles: kinetics and isotherms modeling optimization

Dairy plants produce 1 to 4 L of wastewater per 1 L of processed milk. The wastewater contains high values of chemical oxygen demand (COD) and biochemical oxygen demand (BOD) concentrations, in addition to high levels of dissolved solids. In this study, synthesized copper oxide nanoparticles (CuONPs...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	Nada M. Al-Ananzeh
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	adsorption isotherms and kinetics modeling adsorption treatment copper oxide nanoparticle synthesis optimum cod removal wastewater dairy plant Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/9e4f0ca8bd234d35872a30338764d37c
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:9e4f0ca8bd234d35872a30338764d37c
record_format	dspace
spelling	oai:doaj.org-article:9e4f0ca8bd234d35872a30338764d37c2021-11-06T10:54:11ZTreatment of wastewater from a dairy plant by adsorption using synthesized copper oxide nanoparticles: kinetics and isotherms modeling optimization0273-12231996-973210.2166/wst.2021.089https://doaj.org/article/9e4f0ca8bd234d35872a30338764d37c2021-04-01T00:00:00Zhttp://wst.iwaponline.com/content/83/7/1591https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732Dairy plants produce 1 to 4 L of wastewater per 1 L of processed milk. The wastewater contains high values of chemical oxygen demand (COD) and biochemical oxygen demand (BOD) concentrations, in addition to high levels of dissolved solids. In this study, synthesized copper oxide nanoparticles (CuONPs) coupled with Sophora Japonica fruit, were used as an adsorbent, for the first time, to treat the effluent of dairy plants in a batch adsorption process. The analysis techniques, Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM) were utilized to characterize the adsorbent. The COD removal, using (CuONPs)-based adsorbent, was investigated by varying contact time, masses of the adsorbent, initial COD value and temperatures. The optimum conditions for highest removal percentage were contact time of 120 min, a temperature of 25 °C, pH value of 7.5, and 1 g of adsorbent. The initial COD values used were in the range of 100–700 ppm. The COD percent removal was in the range of 77 to 95%. Freundlich isotherm exhibited the best fitting for the results (R2 = 0.998) with a favorable spontaneous exothermic adsorption process. Based on the calculated normalized deviation value, the modified diffusion model, intra-diffusion, and pseudo-second-order kinetics all showed very good fitting for the adsorption data as indicated by the kinetics study. HIGHLIGHTS A novel synthesis of copper oxide nanoparticles (CuONPs) is made.; CuONPs are firstly tested for the treatment of wastewater from a dairy plant.; CuONPs provided high removal ability for COD at the optimized parameters.; The adsorption is best described by the Freundlich and modified intra-diffusion models.; The adsorptions process was favorable and spontaneous with an electrostatic adsorption of COD onto CuONPs.;Nada M. Al-AnanzehIWA Publishingarticleadsorption isotherms and kinetics modelingadsorption treatmentcopper oxide nanoparticle synthesisoptimum cod removalwastewater dairy plantEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 7, Pp 1591-1604 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	adsorption isotherms and kinetics modeling adsorption treatment copper oxide nanoparticle synthesis optimum cod removal wastewater dairy plant Environmental technology. Sanitary engineering TD1-1066
spellingShingle	adsorption isotherms and kinetics modeling adsorption treatment copper oxide nanoparticle synthesis optimum cod removal wastewater dairy plant Environmental technology. Sanitary engineering TD1-1066 Nada M. Al-Ananzeh Treatment of wastewater from a dairy plant by adsorption using synthesized copper oxide nanoparticles: kinetics and isotherms modeling optimization
description	Dairy plants produce 1 to 4 L of wastewater per 1 L of processed milk. The wastewater contains high values of chemical oxygen demand (COD) and biochemical oxygen demand (BOD) concentrations, in addition to high levels of dissolved solids. In this study, synthesized copper oxide nanoparticles (CuONPs) coupled with Sophora Japonica fruit, were used as an adsorbent, for the first time, to treat the effluent of dairy plants in a batch adsorption process. The analysis techniques, Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM) were utilized to characterize the adsorbent. The COD removal, using (CuONPs)-based adsorbent, was investigated by varying contact time, masses of the adsorbent, initial COD value and temperatures. The optimum conditions for highest removal percentage were contact time of 120 min, a temperature of 25 °C, pH value of 7.5, and 1 g of adsorbent. The initial COD values used were in the range of 100–700 ppm. The COD percent removal was in the range of 77 to 95%. Freundlich isotherm exhibited the best fitting for the results (R2 = 0.998) with a favorable spontaneous exothermic adsorption process. Based on the calculated normalized deviation value, the modified diffusion model, intra-diffusion, and pseudo-second-order kinetics all showed very good fitting for the adsorption data as indicated by the kinetics study. HIGHLIGHTS A novel synthesis of copper oxide nanoparticles (CuONPs) is made.; CuONPs are firstly tested for the treatment of wastewater from a dairy plant.; CuONPs provided high removal ability for COD at the optimized parameters.; The adsorption is best described by the Freundlich and modified intra-diffusion models.; The adsorptions process was favorable and spontaneous with an electrostatic adsorption of COD onto CuONPs.;
format	article
author	Nada M. Al-Ananzeh
author_facet	Nada M. Al-Ananzeh
author_sort	Nada M. Al-Ananzeh
title	Treatment of wastewater from a dairy plant by adsorption using synthesized copper oxide nanoparticles: kinetics and isotherms modeling optimization
title_short	Treatment of wastewater from a dairy plant by adsorption using synthesized copper oxide nanoparticles: kinetics and isotherms modeling optimization
title_full	Treatment of wastewater from a dairy plant by adsorption using synthesized copper oxide nanoparticles: kinetics and isotherms modeling optimization
title_fullStr	Treatment of wastewater from a dairy plant by adsorption using synthesized copper oxide nanoparticles: kinetics and isotherms modeling optimization
title_full_unstemmed	Treatment of wastewater from a dairy plant by adsorption using synthesized copper oxide nanoparticles: kinetics and isotherms modeling optimization
title_sort	treatment of wastewater from a dairy plant by adsorption using synthesized copper oxide nanoparticles: kinetics and isotherms modeling optimization
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/9e4f0ca8bd234d35872a30338764d37c
work_keys_str_mv	AT nadamalananzeh treatmentofwastewaterfromadairyplantbyadsorptionusingsynthesizedcopperoxidenanoparticleskineticsandisothermsmodelingoptimization
_version_	1718443750133334016

Treatment of wastewater from a dairy plant by adsorption using synthesized copper oxide nanoparticles: kinetics and isotherms modeling optimization

Ejemplares similares