A comprehensive adsorption study of 1-Hydroxy-2-Naphthoic acid using cost effective engineered materials

Simple item page
dc.contributor.authorZeb, Muhammad Aurang
dc.contributor.authorMurtaza, Ghulam
dc.contributor.authorHussain, Muhammad Aamer
dc.contributor.authorKubra, Khadija Tul
dc.contributor.authorMuvhiiwa, Ralph
dc.contributor.authorDe Kock, Lueta-Ann
dc.contributor.authorHassard, Francis
dc.date.accessioned2020-06-17T14:53:16Z
dc.date.available2020-06-17T14:53:16Z
dc.date.issued2020-05-16
dc.description.abstractThe naphthoic acids are challenging and costly to remove from water and soil. 1-Hydroxy-2-Naphthoic acid (HNA) is a phenanthrene decomposition product from petroleum-contaminated environments during the aerobic decomposition of polyaromatic hydrocarbons. The hydrogeological mobility of hydrocarbon breakdown products represent a pollution risk (e.g. for drinking water sources). Adsorption to biochar produced from agricultural by-products is a useful strategy to remediate contaminated wastewaters. Here, we examine the controls on the HNA adsorption to the adsorbents magnetite, clay minerals, biochar and magnetite enriched companion materials, namely the influence of contact time, contaminant concentration and ionization effects at different pH. The adsorption of HNA was investigated using low-cost and readily available adsorbents: (i) wheat straw biochar, (ii) rice husk biochar, (iii) sugarcane biochar, (iv) zeolite, (v) montmorillonite, (vi) magnetite and their enriched magnetic companions. Magnetite enriched biochar exhibited greater adsorption rates compared with their nonmagnetic analogs for HNA. The maximum adsorption capacity of the magnetite enriched compounds (initial water concentration of 0.32 mmol HNA.L) was 0.45 mmol.HNA.g of enriched zeolite. The magnetite enriched biochar and conventional biochar showed similar adsorption kinetics although magnetite enrichment improved the efficacy of adsorption. The adsorption fitted the pseudo-second order model in all cases, suggesting the dominant mechanism of adsorption was chemisorption. The magnetite enrichment reduced intra-particle diffusion, possibly due to fouling or blocking of pores within the particles, as evidenced by the decrease in diffusion rate constants. Overall, HNA adsorption improved after magnetic enrichment due to magnetite competing with inhibition sites on the biochar carriers. These findings translate into equivalence between magnetite and magnetic biochars, suggesting cheaper alternative materials could be synthesized in situ with the biochar acting as both an adsorbent and carrier, increasing the prospect of designer biochars for targeted pollutant removal. This approach has the potential to be used for wastewater treatment or for application as a soil additive for remediation of runoff from contaminated soils.en_UK
dc.identifier.citationZeb MA, Murtaza G, Hussain MA, et al., (2020) A comprehensive adsorption study of 1-Hydroxy-2-Naphthoic acid using cost effective engineered materials. Environmental Technology and Innovation, Volume 19, August 2020, Article number 100881en_UK
dc.identifier.issn2352-1864
dc.identifier.urihttps://doi.org/10.1016/j.eti.2020.100881
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/15501
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectEnriched adsorbentsen_UK
dc.subjectZeoliteen_UK
dc.subjectOrganic pollutantsen_UK
dc.subjectBiocharen_UK
dc.subject1-Hydroxy-2-Naphthoic Aciden_UK
dc.subjectPoly aromatic hydrocarbonsen_UK
dc.titleA comprehensive adsorption study of 1-Hydroxy-2-Naphthoic acid using cost effective engineered materialsen_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
adsorption_study_of_1-Hydroxy-2-Naphthoic_acid-2020.pdf
Size:
557.79 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SWEE)