Phytoremediation Potentials of Cynodon dactylon on Heavy Metal Contaminated Soils from Challawa Industrial Estate, Kano-Nigeria

Shuaibu, L.; Abdullahi, U.; Yaradua, A. I.; Bungudu, J. I.

doi:10.9734/ajacr/2021/v9i330216

Cited by 3 publications

(4 citation statements)

References 16 publications

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“…The contaminated soils of this study negatively influenced the development of Bermuda grass, and this is in accordance with previous reports (e.g., [ 18 , 28 , 29 ]). Nevertheless, the fact that the biomass was the only parameter to significantly decrease under contamination points to the tolerance of this grass to PTMs in the soil and reinforces its recommendation for rehabilitation and phytostabilization of contaminated areas [ 30 , 31 , 32 ]. The development of the African daisy was also compromised in the contaminated soils, especially in the gold tailings, where all seedlings died before full development of the first leaves, in the treatment with A. castanea .…”

Section: Discussionmentioning

confidence: 91%

Phytoremediation and Nurse Potential of Aloe Plants on Mine Tailings

Silva

Ramabu

Siebert

2023

IJERPH

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Mine tailings are a source of potentially toxic metals (PTMs) worldwide. Phytoremediation is a low-cost green technology that uses metal-tolerant plants to extract these contaminants and rehabilitate the soil. In mine tailing restoration efforts, it can be beneficial to introduce species that can facilitate the colonization of other plants (i.e., nurse plant syndrome). In this study, the phytoremediation and nursing potential of two species adapted to metalliferous soil, Aloe burgersfortensis and A. castanea, were evaluated for the first time. An experiment was performed with aloe plants grown in pots containing potting soil, platinum tailings, and gold tailings. Leaves were assessed for bioaccumulation of PTMs. Seeds of Bermuda grass and African daisy, two successional pioneers, were planted with the aloes and had their developmental parameters evaluated after 30 days. Allelopathic effects were also assessed, with seeds of the pioneer plants infused with root extracts of the aloes from the different soil treatments. A. castanea demonstrated greater potential for the bioaccumulation of Cd, Co, Mn, Ni, and Zn in the tailings. The presence of aloes benefited germination rates, leaf count, length, and plant biomass of grasses and daisies in the mine tailings, without significant allelopathic effects. Therefore, aloes—especially A. castanea—should be employed in the rehabilitation of metal-contaminated soils to extract metals and to aid the establishment of other species to enhance the phytoremediation processes.

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Section: Discussionmentioning

confidence: 91%

Phytoremediation and Nurse Potential of Aloe Plants on Mine Tailings

Silva

Ramabu

Siebert

2023

IJERPH

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“…The results also showed that the plant roots have absorbed more HM concentration than the shoots, as the current study results. Shuaibu et al [51] observed the phytoremediation potentials of C. dactylon on HM polluted soils from Challawa Industrial Estate, Nigeria. They found that the concentration of the metals in the C. dactylon from control and polluted sites were noted to be in the order of Cu (33.60 mg/kg) > Mn (12.67 mg/kg) and Cu (138.35 mg/kg) > Mn (28.40 mg/kg), respectively.…”

Section: Bioconcentration (Bcf %) and Translocation Factor (Tf %) Of ...mentioning

confidence: 99%

Phytoremediation of Cu and Mn from Industrially Polluted Soil: An Eco-Friendly and Sustainable Approach

Khan,

Dilawar,

Hassan

et al. 2023

Water

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Water and soil polluted by heavy metals (HMs) are the primary problem due to rapidly increasing urbanization and industrialization. For the treatment of polluted soil, phytoremediation turns into a cost-effective and eco-friendly technique. The current research aimed to examine the load of pollution, specifically HMs, in sediment and wastewater (WW) of the GadoonAmazai Industrial Estate (GAIE), Pakistan and compare the ability of native grass species Cynodon dactylon and Digiteria sanguinalis for the phytoaccumulation of HMs. The industrially polluted soil was analysed for HMs using atomic absorption spectrophotometry (AAS) and compared with healthy soil (irrigated by freshwater), which served as a control. The HM accumulation was considerably higher in the soil irrigated with WW than in control soil samples. The most substantial metal pollutant was manganese (Mn), which accumulated up to 2491.7 mg/kg in the WW irrigated soil. For assessing the bioremoval efficiency of grass species, pot experimentation was performed for 90 days. Soil samples and grasses were collected from the pots to examine the HM removal efficiency. A significant reduction was noted in physicochemical characteristics of the soil, such as electrical conductivity, total organic matter, phosphorus, potassium, and saturation. The grasses removed up to 59.0% of the Cu and 59.9% of Mn from the soil. The highest bioconcentration factor (BCF) and translocation factor (TF) of Cu were observed for D. sanguinalis. While the highest BCF and TF of Mn were obtained for C. dactylon. The research showed that the grass significantly (p ≤ 0.05) reduced HM in soil samples. Moreover, the selected grasses found a higher capability to accumulate HM in the roots than in the shoot. The maximum Cu removal was obtained by D. sanguinalis and Mn by C. dactylon. The research study concluded that phytoremediation using D. sanguinalis and C. dactylon is an eco-friendly and cost-effective method that can be utilized for soil remediation.

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“…Investigaciones científicas previas han demostrado el potencial de fitorremediación de la especie C. dactylon al acumular metales pesados de sitios contaminados mediante fitoextracción y fitoestabilización (p.e. (Mishra et al, 2020;Sampanpanish et al, 2006;Shuaibu et al, 2021)). En cuanto a la especie P. afra, la evaluación de su capacidad de fitorremediación de Cr(VI) representa una gran aportación en el alcance de la aplicación de este tratamiento biológico complementando el catálogo de especies utilizadas para estos fines y en la comprensión de las interacciones en el sistema suelo-planta-contaminante que involucra a esta especie vegetal.…”

Section: Introductionunclassified

“…Respecto a la especie S. trifasciata, se observó una eficiencia similar con un valor de 81.96%, FBC de 0.738 y FT de 0.008. La concentración del contaminante en el suelo para ambos casos se reportó inferior a los límites máximos permisibles establecidos por la normatividad mexicana para suelos agrícolas, comerciales o residenciales.En cuanto a las inverstigaciones internacionales,Shuaibu et al, (2021) estudiaron el potencial de fitorremediación del pasto C. dactylon en suelos que presentaron una alta contaminación con Cd, considerablemente con Cu y Cr, y moderadamente con Fe, Mn, Zn, Ni y Pb. Después del tratamiento biológico, se obtuvieron valores de FBC>1 y FT<1 para Cd, Cr, Cu, Mn, Ni, Pb y Zn, así como FBC>1 y FT<1 para Fe, lo cual es un indicador de que la planta es capaz de acumular estos metales pesados en las raíces, así como de extraer Fe, volviéndola útil tanto para procesos de fitoestabilización y fitoextracción en suelos multimetálicos contaminados.…”

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Fitorremediación de suelo contaminado con cromo hexavalente empleando las especies Portulacaria afra y Cynodon dactylon

Reyes Lomelí

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This research work presents a feasible biotechnological proposal to address a priority environmental problem such as soil contamination by hexavalent chromium (Cr(VI)), which is highly toxic. Phytoremediation is a treatment that provides the opportunity to identify plant species that are capable of remediating soils and is based on an economical and passive technology driven by solar energy, in contrast to traditional physicochemical treatments, which are expensive, alter soil properties and promote secondary contamination. The phytoremediation capacity of Cr(VI) of a contaminated industrial soil was evaluated using the plant species Portulacaria afra (P. afra) and Cynodon dactylon (C.dactylon) during 192 days of treatment. The initial concentration of total Cr in the soil was 5782.06 ± 258.3 mg/kg (2683.01 ± 38.2 mg/kg Cr(VI)). Chromium concentration in roots and shoots was monitored from total Cr. Bioconcentration (BCF) and translocation factors (TF) were calculated with final concentrations of Cr: 0.87 and 0.02 for P. afra; 1.66 and 0.01 for C. dactylon. Both species accumulated Cr mainly in the roots, thus, they are suitable for phytostabilization processes. The maximum phytoremediation capacity of Cr(VI) was observed in C. dactylon with a removal efficiency of 98.41%, obtaining a similar value with P. afra (98.12%). Using P. afra, the treatment was driven by the reduction of Cr(VI) to Cr(III), and with C. dactylon, by simultaneous reduction and root absorption. The participation of two strains of indigenous microorganisms from the contaminated soil in the reduction of Cr(VI) was evidenced. The isolates were identified as Bacillus sp. And Aspergillus sp. And were inoculated in reactors at different Cr(VI) concentrations (50, 100 and 200 ppm). The highest reduction rates were observed with the Aspergillus sp. strain, obtaining 99.96% (50 ppm), 97.28% (100 ppm) and 54.39% (200 ppm) at the end of the experiment. The reduction rates using the Bacillus sp. strain were lower: 44.75% (50 ppm), 26.89% (100 ppm) and 27.79% (200 ppm). The Cr(VI) concentration in the soil at the end of treatment using both plant species was lower than the limits established by Mexican regulations for agricultural, domestic, commercial and industrial soils. This study represents a great contribution to the application of phytoremediation in contaminated soils with Cr(VI) by increasing its scope and complementing the catalog of species used for restoration purposes.

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Phytoremediation Potentials of Cynodon dactylon on Heavy Metal Contaminated Soils from Challawa Industrial Estate, Kano-Nigeria

Cited by 3 publications

References 16 publications

Phytoremediation and Nurse Potential of Aloe Plants on Mine Tailings

Phytoremediation and Nurse Potential of Aloe Plants on Mine Tailings

Phytoremediation of Cu and Mn from Industrially Polluted Soil: An Eco-Friendly and Sustainable Approach

Fitorremediación de suelo contaminado con cromo hexavalente empleando las especies Portulacaria afra y Cynodon dactylon

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