2019
DOI: 10.2478/auoc-2019-0006
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Batch washing of lead contaminated and spiked soils using extracts of dried Terminalia mantaly, Panicum maximum and Eleusine indica plants

Abstract: Application of dried plant water soluble extracts in soil Pb decontamination is rear, but advantageous due to their ecological biodegradability. Single batch laboratory scale suitability of Terminalia mantaly, Panicum maximum, Eleusine indica and water as washing solutions for Pb removal from contaminated and spiked soils at different soil pulp densities (3%, 6%, 9%, 12%, 15% and 18%) and washing time (1, 3, 6, 12, 24 and 96 h) was investigated. Washings of Terminalia mantaly and Panicum maximum proved more ef… Show more

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Cited by 4 publications
(9 citation statements)
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“…Temporal variations in Pb concentration over a period of about twenty years at the impact berm (where bullet fragments are deposited) of the shooting range is illustrated in Figure 2. The accumulation of bullet fragments resulting from continuous usage of the range for shooting activities coupled with weathering and prevalent soil conditions at the berm has resulted in exponential five-fold increase in Pb concentrations [26,28,[37][38][39]. As observed in Figure 2, there's constant rise in soil-Pb levels from 2004 although to 2017 with slight drop in 2018.…”
Section: Figure 1 Graphical Display Of Soil Metal Datamentioning
confidence: 95%
“…Temporal variations in Pb concentration over a period of about twenty years at the impact berm (where bullet fragments are deposited) of the shooting range is illustrated in Figure 2. The accumulation of bullet fragments resulting from continuous usage of the range for shooting activities coupled with weathering and prevalent soil conditions at the berm has resulted in exponential five-fold increase in Pb concentrations [26,28,[37][38][39]. As observed in Figure 2, there's constant rise in soil-Pb levels from 2004 although to 2017 with slight drop in 2018.…”
Section: Figure 1 Graphical Display Of Soil Metal Datamentioning
confidence: 95%
“…The aqueous mixtures were later filtered using a 10 µm mess cloth and stored at 20 °C for the washing experiment. This extraction method is a slight modification of the procedure previously describe by Etim (2019) in terms of weight of plant to volume of water ratio. This modification is used to investigate the effect of higher extract concentration on Pb removal efficiency.…”
Section: Preparation Of Water Soluble Plant Extractsmentioning
confidence: 99%
“…Several methods ranging from physical, chemical and biological have been adopted for toxic Pb removal from soils [10]. Among these methods, soil washing is particularly promising due to its simplicity, viability and efficiency [11][12][13][14][15]. Several studies have focused on the use of washing reagents such as inorganic and organic acids, chelating agents, bio-surfactants and composites with significant effectiveness in Pb removal from soils [13,[16][17][18][19].…”
Section: Introductionmentioning
confidence: 99%