Remediation of chromium(VI) containing wastewater using Chrysopogon zizanioides (vetiver grass)

dc.contributor.authorMasinire, Farai F.
dc.contributor.authorAdenuga, Dorcas Oluyemisi
dc.contributor.authorTichapondwa, Shepherd Masimba
dc.contributor.authorChirwa, Evans M.N.
dc.contributor.emailevans.chirwa@up.ac.zaen_ZA
dc.date.accessioned2021-06-22T13:05:22Z
dc.date.available2021-06-22T13:05:22Z
dc.date.issued2020
dc.description.abstractRemediation of heavy metal contaminated soil and water has been investigated through various methods, most of these have been shown to be expensive and sometimes result in the generation of toxic sludge. In situ methods such as phytoremediation have therefore been explored for their green, economical and less environmentally disruptive advantages. This study investigates the use of vetiver grass in the remediation of chromium(VI) from wastewater. The grass is known to grow in both soil and water. The efficiency of the vetiver grass in the removal of Cr(VI) was examined using 2 L solutions of varying concentrations. The initial concentrations of Cr(VI) chosen for the study were 5 ppm, 10 ppm, 30 ppm and 70 ppm. In a seven (7) week period, 87 % reduction in Cr(VI) concentration was observed in the 5 ppm bucket, while 51 % Cr(VI) removal was measured in the 10 ppm bucket. The 30 ppm bucket had a removal efficiency of 28 % in 5 weeks and 12 % removal efficiency in 4 weeks was measured in the 70 ppm bucket. The absorption of chromium was higher in the roots than the leaves at 5 ppm and 10 ppm, whereas it was higher in the leaves than in the roots at 30 ppm and 70 ppm. The results show the potential of vetiver grass in phytoextraction of chromium and its hyperaccumulator potential for other heavy metals.en_ZA
dc.description.departmentChemical Engineeringen_ZA
dc.description.librarianpm2021en_ZA
dc.description.urihttps://www.cetjournal.iten_ZA
dc.identifier.citationMasinire F., Adenuga D., Tichapondwa S., Chirwa E.M., 2020, Remediation of Chromium(vi) Containing Wastewater Using Chrysopogon Zizanioides (vetiver Grass), Chemical Engineering Transactions, 79, 385-390, DOI:10.3303/CET2079065.en_ZA
dc.identifier.issn2283-9216 (online)
dc.identifier.other10.3303/CET2079065
dc.identifier.urihttp://hdl.handle.net/2263/80532
dc.language.isoenen_ZA
dc.publisherItalian Association of Chemical Engineeringen_ZA
dc.rights© 2020, AIDIC Servizi S.r.l.en_ZA
dc.subjectRemediationen_ZA
dc.subjectChromium(VI)en_ZA
dc.subjectWastewateren_ZA
dc.subjectVetiver grass (Chrysopogon zizanioides)en_ZA
dc.titleRemediation of chromium(VI) containing wastewater using Chrysopogon zizanioides (vetiver grass)en_ZA
dc.typeArticleen_ZA

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Masinire_Remediation_2020.pdf
Size:
570.54 KB
Format:
Adobe Portable Document Format
Description:
Article

License bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
license.txt
Size:
1.75 KB
Format:
Item-specific license agreed upon to submission
Description: