Cadmium Removal and Recovery from Aqueous Solution Using Conocarpus Nanostructure

Heavy metals are recognized as one of the most toxic groups. They enter the food chain through the waste disposal into the water and environment. This study was carried out with the aim of investigating cadmium ions removal from aqueous solution using conocarpus nanostructure. For this purpose, cono...

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Main Authors: Pejman Pourmohammad, Masoomeh Farasati, Bahman Farhadi, Meghdad Pirsaheb
Format: Article
Language:English
Published: Water and Wastewater Consulting Engineers Research Development 2018-05-01
Series:آب و فاضلاب
Subjects:
Online Access:http://www.wwjournal.ir/article_49665_089b9ff7ac77484d41fa27f5d512560d.pdf
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spelling doaj-a23cc309c74c438c9a402c333ae136202021-04-02T15:33:48ZengWater and Wastewater Consulting Engineers Research Developmentآب و فاضلاب1024-59362383-09052018-05-01292122210.22093/wwj.2017.63218.225849665Cadmium Removal and Recovery from Aqueous Solution Using Conocarpus NanostructurePejman Pourmohammad0Masoomeh Farasati1Bahman Farhadi2Meghdad Pirsaheb3MSc Student of Water Engineering, Faculty of Agricultural, University of Razi, Kermanshah, IranAssist Prof. of Water Engineering, Faculty of Agricultural, University of Razi, Kermanshah, Iran; and Assist. Prof. of Watershed Management University of Gonbad Kavoos, Gonbad, IranAssist Prof. of Water Engineering, Faculty of Agricultural, University of Razi, Kermanshah, IranAssoc. Prof., Faculty of Health, Kermanshah University of Medical Sciences, Kermanshah, IranHeavy metals are recognized as one of the most toxic groups. They enter the food chain through the waste disposal into the water and environment. This study was carried out with the aim of investigating cadmium ions removal from aqueous solution using conocarpus nanostructure. For this purpose, conocarpus was grinded to nano-size by the ball mill. The effect of experimental parameters such as pH, time, adsorbent dosage and initial concentration of cadmium were studied in batch system. The PSA, FTIR and SEM tests were used to determine the absorbent characteristics. The imaging of adsorbent indicated that surface of conocarpus had many deep pores, which represents the better adsorption of cadmium. 8.5% of adsorbent particles were in the range of nanoparticles and 91.5% of them were in the range of nanostructure. The results showed that optimum pH for cadmium adsorption is 6 and the maximum removal efficiency and adsorption capacity of cadmium are 80.9% and 0.86 mg/g., respectively. Comparing the adsorption isotherm and kinetics models showed that the Langmuir and Ho models, with R2 values of 0.998 and 0.990 respectively, had a better fitting and description of adsorption data than other models. The study showed that conocarpus nanostructure is an effective adsorbent for cadmium removal from aqueous solution.http://www.wwjournal.ir/article_49665_089b9ff7ac77484d41fa27f5d512560d.pdfcadmiumConocarpus NanostructurerecoveryAdsorption ModelIndustrial Sewage
collection DOAJ
language English
format Article
sources DOAJ
author Pejman Pourmohammad
Masoomeh Farasati
Bahman Farhadi
Meghdad Pirsaheb
spellingShingle Pejman Pourmohammad
Masoomeh Farasati
Bahman Farhadi
Meghdad Pirsaheb
Cadmium Removal and Recovery from Aqueous Solution Using Conocarpus Nanostructure
آب و فاضلاب
cadmium
Conocarpus Nanostructure
recovery
Adsorption Model
Industrial Sewage
author_facet Pejman Pourmohammad
Masoomeh Farasati
Bahman Farhadi
Meghdad Pirsaheb
author_sort Pejman Pourmohammad
title Cadmium Removal and Recovery from Aqueous Solution Using Conocarpus Nanostructure
title_short Cadmium Removal and Recovery from Aqueous Solution Using Conocarpus Nanostructure
title_full Cadmium Removal and Recovery from Aqueous Solution Using Conocarpus Nanostructure
title_fullStr Cadmium Removal and Recovery from Aqueous Solution Using Conocarpus Nanostructure
title_full_unstemmed Cadmium Removal and Recovery from Aqueous Solution Using Conocarpus Nanostructure
title_sort cadmium removal and recovery from aqueous solution using conocarpus nanostructure
publisher Water and Wastewater Consulting Engineers Research Development
series آب و فاضلاب
issn 1024-5936
2383-0905
publishDate 2018-05-01
description Heavy metals are recognized as one of the most toxic groups. They enter the food chain through the waste disposal into the water and environment. This study was carried out with the aim of investigating cadmium ions removal from aqueous solution using conocarpus nanostructure. For this purpose, conocarpus was grinded to nano-size by the ball mill. The effect of experimental parameters such as pH, time, adsorbent dosage and initial concentration of cadmium were studied in batch system. The PSA, FTIR and SEM tests were used to determine the absorbent characteristics. The imaging of adsorbent indicated that surface of conocarpus had many deep pores, which represents the better adsorption of cadmium. 8.5% of adsorbent particles were in the range of nanoparticles and 91.5% of them were in the range of nanostructure. The results showed that optimum pH for cadmium adsorption is 6 and the maximum removal efficiency and adsorption capacity of cadmium are 80.9% and 0.86 mg/g., respectively. Comparing the adsorption isotherm and kinetics models showed that the Langmuir and Ho models, with R2 values of 0.998 and 0.990 respectively, had a better fitting and description of adsorption data than other models. The study showed that conocarpus nanostructure is an effective adsorbent for cadmium removal from aqueous solution.
topic cadmium
Conocarpus Nanostructure
recovery
Adsorption Model
Industrial Sewage
url http://www.wwjournal.ir/article_49665_089b9ff7ac77484d41fa27f5d512560d.pdf
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