A polymer – zeolite composite for mixed metal removal from aqueous solution

Heavy metals become inevitable pollutants that are toxic to life. Lots of treatment methods are available; adsorption is a cheap option. Metals are mostly found as mixtures in wastewaters. Taking this into account, a natural composite adsorbent aims to remove multiple heavy metals (Pb2+, Cu2+, Cd2+)...

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Autores principales:	Merve Yıldız Yiğit, Esra Sultan Baran, Çiğdem Kıvılcımdan Moral
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	alginate cadmium clinoptilolite copper heavy metals lead Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/ca942e129899442c916756b88cd3f39e
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spelling	oai:doaj.org-article:ca942e129899442c916756b88cd3f39e2021-11-06T10:50:58ZA polymer – zeolite composite for mixed metal removal from aqueous solution0273-12231996-973210.2166/wst.2021.057https://doaj.org/article/ca942e129899442c916756b88cd3f39e2021-03-01T00:00:00Zhttp://wst.iwaponline.com/content/83/5/1152https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732Heavy metals become inevitable pollutants that are toxic to life. Lots of treatment methods are available; adsorption is a cheap option. Metals are mostly found as mixtures in wastewaters. Taking this into account, a natural composite adsorbent aims to remove multiple heavy metals (Pb2+, Cu2+, Cd2+). Alginate was combined with clinoptilolite to form alginate – clinoptilolite (A–C) beads. First, factors influencing the removal efficiency of metals were investigated. Then, continuous column experiments were performed to evaluate the real application potential of the adsorbent. A–C beads preferably adsorbed Pb2+. Batch experiments showed metal uptake reached equilibrium after 24 hours and kinetics were compatible with the first-order. Also, pH values near neutral levels were observed to increase heavy metal removal. On the other hand, adsorption equilibrium was well described by the Langmuir model for Cu2+ and Cd2+ and by the Freundlich model for Pb2+. The highest heavy metal uptake was calculated as 2,145 mg /g A–C beads for Pb2+. Continuous column operations were suggested to apply low flow rates (<2 mL/min) and heavy metal concentration (<10 mg/L) for effectiveness. A–C beads can be a good candidate for mixed heavy metal removal composed of environmentally friendly and low-cost materials.Merve Yıldız YiğitEsra Sultan BaranÇiğdem Kıvılcımdan MoralIWA Publishingarticlealginatecadmiumclinoptilolitecopperheavy metalsleadEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 5, Pp 1152-1166 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	alginate cadmium clinoptilolite copper heavy metals lead Environmental technology. Sanitary engineering TD1-1066
spellingShingle	alginate cadmium clinoptilolite copper heavy metals lead Environmental technology. Sanitary engineering TD1-1066 Merve Yıldız Yiğit Esra Sultan Baran Çiğdem Kıvılcımdan Moral A polymer – zeolite composite for mixed metal removal from aqueous solution
description	Heavy metals become inevitable pollutants that are toxic to life. Lots of treatment methods are available; adsorption is a cheap option. Metals are mostly found as mixtures in wastewaters. Taking this into account, a natural composite adsorbent aims to remove multiple heavy metals (Pb2+, Cu2+, Cd2+). Alginate was combined with clinoptilolite to form alginate – clinoptilolite (A–C) beads. First, factors influencing the removal efficiency of metals were investigated. Then, continuous column experiments were performed to evaluate the real application potential of the adsorbent. A–C beads preferably adsorbed Pb2+. Batch experiments showed metal uptake reached equilibrium after 24 hours and kinetics were compatible with the first-order. Also, pH values near neutral levels were observed to increase heavy metal removal. On the other hand, adsorption equilibrium was well described by the Langmuir model for Cu2+ and Cd2+ and by the Freundlich model for Pb2+. The highest heavy metal uptake was calculated as 2,145 mg /g A–C beads for Pb2+. Continuous column operations were suggested to apply low flow rates (<2 mL/min) and heavy metal concentration (<10 mg/L) for effectiveness. A–C beads can be a good candidate for mixed heavy metal removal composed of environmentally friendly and low-cost materials.
format	article
author	Merve Yıldız Yiğit Esra Sultan Baran Çiğdem Kıvılcımdan Moral
author_facet	Merve Yıldız Yiğit Esra Sultan Baran Çiğdem Kıvılcımdan Moral
author_sort	Merve Yıldız Yiğit
title	A polymer – zeolite composite for mixed metal removal from aqueous solution
title_short	A polymer – zeolite composite for mixed metal removal from aqueous solution
title_full	A polymer – zeolite composite for mixed metal removal from aqueous solution
title_fullStr	A polymer – zeolite composite for mixed metal removal from aqueous solution
title_full_unstemmed	A polymer – zeolite composite for mixed metal removal from aqueous solution
title_sort	polymer – zeolite composite for mixed metal removal from aqueous solution
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/ca942e129899442c916756b88cd3f39e
work_keys_str_mv	AT merveyıldızyigit apolymerzeolitecompositeformixedmetalremovalfromaqueoussolution AT esrasultanbaran apolymerzeolitecompositeformixedmetalremovalfromaqueoussolution AT cigdemkıvılcımdanmoral apolymerzeolitecompositeformixedmetalremovalfromaqueoussolution AT merveyıldızyigit polymerzeolitecompositeformixedmetalremovalfromaqueoussolution AT esrasultanbaran polymerzeolitecompositeformixedmetalremovalfromaqueoussolution AT cigdemkıvılcımdanmoral polymerzeolitecompositeformixedmetalremovalfromaqueoussolution
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A polymer – zeolite composite for mixed metal removal from aqueous solution

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