Application of Modified Spent Mushroom Compost Biochar (SMCB/Fe) for Nitrate Removal from Aqueous Solution

The public is already aware that nitrate pollution caused by nutrient runoff from farms is harmful to aquatic life and human health, and there is an urgent need for a product/technology to solve this problem. A biochar adsorbent was synthesized and used to remove nitrate ions from aqueous media base...

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Autores principales:	Negisa Darajeh, Hossein Alizadeh, David W. M. Leung, Hamid Rashidi Nodeh, Shahabaldin Rezania, Hossein Farraji
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	modified spent mushroom compost biochar (SMCB/Fe) nitrate removal aqueous solution adsorbent Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/aedb9c7348c6494a972095429b451374
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spelling	oai:doaj.org-article:aedb9c7348c6494a972095429b4513742021-11-25T19:08:00ZApplication of Modified Spent Mushroom Compost Biochar (SMCB/Fe) for Nitrate Removal from Aqueous Solution10.3390/toxics91102772305-6304https://doaj.org/article/aedb9c7348c6494a972095429b4513742021-10-01T00:00:00Zhttps://www.mdpi.com/2305-6304/9/11/277https://doaj.org/toc/2305-6304The public is already aware that nitrate pollution caused by nutrient runoff from farms is harmful to aquatic life and human health, and there is an urgent need for a product/technology to solve this problem. A biochar adsorbent was synthesized and used to remove nitrate ions from aqueous media based on spent mushroom compost (SMC), pre-treated with iron (III) chloride hexahydrate and pyrolyzed at 600 °C. The surface properties and morphology of SMCB/Fe were investigated using Fourier transform-infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The effect of main parameters such as the adsorbent dosages, pH of the solutions, contact times, and ion concentrations on the efficiency of nitrate removal was investigated. The validity of the experimental method was examined by the isothermal adsorption and kinetic adsorption models. The nitrate sorption kinetics were found to follow the pseudo-second-order model, with a higher determination coefficient (0.99) than the pseudo-first-order (0.86). The results showed that the maximum percentage of nitrate adsorption was achieved at equilibrium pH 5–7, after 120 min of contact time, and with an adsorbent dose of 2 g L<sup>−1</sup>. The highest nitrate adsorption capacity of the modified adsorbent was 19.88 mg g<sup>−1</sup>.Negisa DarajehHossein AlizadehDavid W. M. LeungHamid Rashidi NodehShahabaldin RezaniaHossein FarrajiMDPI AGarticlemodified spent mushroom compost biochar (SMCB/Fe)nitrate removalaqueous solutionadsorbentChemical technologyTP1-1185ENToxics, Vol 9, Iss 277, p 277 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	modified spent mushroom compost biochar (SMCB/Fe) nitrate removal aqueous solution adsorbent Chemical technology TP1-1185
spellingShingle	modified spent mushroom compost biochar (SMCB/Fe) nitrate removal aqueous solution adsorbent Chemical technology TP1-1185 Negisa Darajeh Hossein Alizadeh David W. M. Leung Hamid Rashidi Nodeh Shahabaldin Rezania Hossein Farraji Application of Modified Spent Mushroom Compost Biochar (SMCB/Fe) for Nitrate Removal from Aqueous Solution
description	The public is already aware that nitrate pollution caused by nutrient runoff from farms is harmful to aquatic life and human health, and there is an urgent need for a product/technology to solve this problem. A biochar adsorbent was synthesized and used to remove nitrate ions from aqueous media based on spent mushroom compost (SMC), pre-treated with iron (III) chloride hexahydrate and pyrolyzed at 600 °C. The surface properties and morphology of SMCB/Fe were investigated using Fourier transform-infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The effect of main parameters such as the adsorbent dosages, pH of the solutions, contact times, and ion concentrations on the efficiency of nitrate removal was investigated. The validity of the experimental method was examined by the isothermal adsorption and kinetic adsorption models. The nitrate sorption kinetics were found to follow the pseudo-second-order model, with a higher determination coefficient (0.99) than the pseudo-first-order (0.86). The results showed that the maximum percentage of nitrate adsorption was achieved at equilibrium pH 5–7, after 120 min of contact time, and with an adsorbent dose of 2 g L<sup>−1</sup>. The highest nitrate adsorption capacity of the modified adsorbent was 19.88 mg g<sup>−1</sup>.
format	article
author	Negisa Darajeh Hossein Alizadeh David W. M. Leung Hamid Rashidi Nodeh Shahabaldin Rezania Hossein Farraji
author_facet	Negisa Darajeh Hossein Alizadeh David W. M. Leung Hamid Rashidi Nodeh Shahabaldin Rezania Hossein Farraji
author_sort	Negisa Darajeh
title	Application of Modified Spent Mushroom Compost Biochar (SMCB/Fe) for Nitrate Removal from Aqueous Solution
title_short	Application of Modified Spent Mushroom Compost Biochar (SMCB/Fe) for Nitrate Removal from Aqueous Solution
title_full	Application of Modified Spent Mushroom Compost Biochar (SMCB/Fe) for Nitrate Removal from Aqueous Solution
title_fullStr	Application of Modified Spent Mushroom Compost Biochar (SMCB/Fe) for Nitrate Removal from Aqueous Solution
title_full_unstemmed	Application of Modified Spent Mushroom Compost Biochar (SMCB/Fe) for Nitrate Removal from Aqueous Solution
title_sort	application of modified spent mushroom compost biochar (smcb/fe) for nitrate removal from aqueous solution
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/aedb9c7348c6494a972095429b451374
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Application of Modified Spent Mushroom Compost Biochar (SMCB/Fe) for Nitrate Removal from Aqueous Solution

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