Browsing by Author "Mothapo, Eva"

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Valorization of invasive sickle bush plant (Dichrostachys cinerea L.) and evaluation of its water treatment potentials
(Elsevier Inc., 2025-08-16) Adeeyo, Adeyemi; Makungo, Rachel; Mothapo, Eva; Oyetade, Joshua; Msagati, Titus
The study investigates the valorization of invasive plant (Dichrostachys cinerea L.), using its calcinated product (550 oC for 5 h) as a treatment and disinfection agent, especially for E. coli and total coliform count in water samples. The methods compare the use of the derived ash and potash alum in their pristine form and when combined using a dosage range of 0.01g-0.05 g at 0, 6 hrs and 24 hrs treatment time for 100 mL of respective water samples. The treatment with the volarized product resulted in a pH range of 8.03–9.07, which is in tandem with the limits set by the regulatory bodies for drinking water. The conductivity of the treated water increased with increased dosage and treatment time. The highest reported values were 564.00, 567.00, 569.00 µS/cm for the upper stream of Pond and 577.00, 585.00, 592.00 µS/cm for the lower stream of the Pond, although within the set limit for drinking water (1700 mS/cm). Salinity and Total dissolved solids (TDS) were in a similar manner at the respective sampling points. The blended product presents a greener alternative to synthetic alum and showed excellent antimicrobial potential, with a 100 % reduction efficiency, especially using a 0.03 and 0.05 g dosage for 24 hrs.