scholarly journals Impact of Cement Production on soil Heavy Metals and Nutrients Uptake of Elephant Grass (Pennisetum Purpureum) Grown within 2km Radius of cement Factory in South West Nigeria

2020 ◽  
Vol 5 (5) ◽  
pp. 1265-1271
Author(s):  
Omotosho Mohammed Soladoye ◽  
Ayinde Kaseem Olusola ◽  
Feyisola Roseline Tolulope ◽  
Ayeni Leye Samuel ◽  
Saliyu Mutiu
Keyword(s):  
Heavy Metals ◽  
Pennisetum Purpureum ◽  
Elephant Grass ◽  
Cement Production ◽  
Soil Heavy Metals ◽  
Cement Factory ◽  
South West ◽  
Nutrients Uptake

scholarly journals Microsatellite markers-based characterisation of elephant grass (Pennisetum purpureum) harvested from selected locations in South-West Nigeria

2020 ◽  
Vol 37 (1) ◽  
pp. 38-45
Author(s):  
O.A. Okukenu ◽  
A.A. Olajide ◽  
P.A. Dele ◽  
M. Wheto ◽  
B.T. Akinyemi ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Markers ◽  
Dna Extraction ◽  
Morphological Characterization ◽  
Ethanol Solution ◽  
Pennisetum Purpureum ◽  
Elephant Grass ◽  
South West ◽  
Ssr Primers ◽  
Genetic Index

This study was carried out to characterise Pennisetum purpureum harvested from some selected locations in S outh-W estern Nigeria using microsatellite markers. Leaf parts of growing young elephant grass (Pennisetum purpureum) were harvested and immediately preserved in ethanol solution before DNA extraction. Two (2) SSR primers (CTM59 and Xtxp278) were used to assess genetic diversity in Pennisetum purpureum. The result shows that 72% of the molecular variations in the elephant grass exists within the population with 28% among the population; there were no unique characteristics among the Nine (9) populations. Nei genetic index ranged from 0.067 (lowest) observed between Isokan and Odeda populations to 0.158 (highest), between Ifedore and Ikoyi Populations. Morphological characterization showed moderate diversity with two major clusters and one minor cluster. Keyword: Elephant grass; cultivars; locations; markers

Utilisation of Biomass and Hybrid Biochar from Elephant Grass and Low Density Polyethylene for the Competitive Adsorption of Pb(II), Cu(II), Fe(II) and Zn(II) from Aqueous Media

2020 ◽  
Vol 13 ◽  
Author(s):  
Joshua O. Ighalo ◽  
Lois T. Arowoyele ◽  
Samuel Ogunniyi ◽  
Comfort A. Adeyanju ◽  
Folasade M. Oladipo-Emmanuel ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Removal Efficiency ◽  
Contact Time ◽  
Competitive Adsorption ◽  
Adsorption Process ◽  
Aqueous Media ◽  
Polluted Water ◽  
Batch Adsorption ◽  
Order Kinetic ◽  
Elephant Grass

Background: The presence of pollutants in polluted water is not singularized hence pollutant species are constantly in competition for active sites during the adsorption process. A key advantage of competitive adsorption studies is that it informs on the adsorbent performance in real water treatment applications. Objective: This study aims to investigate the competitive adsorption of Pb(II), Cu(II), Fe(II) and Zn(II) using elephant grass (Pennisetum purpureum) biochar and hybrid biochar from LDPE. Method: The produced biochar was characterised by Scanning Electron Microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FTIR). The effect of adsorption parameters, equilibrium isotherm modelling and parametric studies were conducted based on data from the batch adsorption experiments. Results: For both adsorbents, the removal efficiency was >99% over the domain of the entire investigation for dosage and contact time suggesting that they are very efficient for removing multiple heavy metals from aqueous media. It was observed that removal efficiency was optimal at 2 g/l dosage and contact time of 20 minutes for both adsorbent types. The Elovich isotherm and the pseudo-second order kinetic models were best-fit for the competitive adsorption process. Conclusion: The study was able to successfully reveal that biomass biochar from elephant grass and hybrid biochar from LDPE can be used as effective adsorbent material for the removal of heavy metals from aqueous media. This study bears a positive implication for environmental protection and solid waste management.

Contamination features and health risk of soil heavy metals in China

2015 ◽  
Vol 512-513 ◽  
pp. 143-153 ◽  
Author(s):  
Haiyang Chen ◽  
Yanguo Teng ◽  
Sijin Lu ◽  
Yeyao Wang ◽  
Jinsheng Wang
Keyword(s):  
Heavy Metals ◽  
Health Risk ◽  
Soil Heavy Metals

Energetic characterization and flash pyrolysis of different elephant grass cultivars ( Pennisetum purpureum Schum.)

2021 ◽  
Author(s):  
Mayara de Oliveira Lessa ◽  
Guilherme Quintela Calixto ◽  
Bruna Maria Emerenciano das Chagas ◽  
Emerson Moreira Aguiar ◽  
Marcus Antônio de Freitas Melo ◽  
...  
Keyword(s):  
Pennisetum Purpureum ◽  
Elephant Grass ◽  
Flash Pyrolysis ◽  
Energetic Characterization ◽  
Pennisetum Purpureum Schum

scholarly journals Temporal assessment of root and shoot colonization of elephant grass (Pennisetum purpureum Schum.) host seedlings by Gluconacetobacter diazotrophicus strain LP343

2021 ◽  
Vol 244 ◽  
pp. 126651
Author(s):  
Carlos M. Dos-Santos ◽  
Wiglison B.A. Nascimento ◽  
Bruna P. do Nascimento ◽  
Stefan Schwab ◽  
José I. Baldani ◽  
...  
Keyword(s):  
Pennisetum Purpureum ◽  
Elephant Grass ◽  
Gluconacetobacter Diazotrophicus ◽  
Pennisetum Purpureum Schum ◽  
Temporal Assessment

scholarly journals Reforestation Impacted Soil Heavy Metal Fractionation and Related Risk Assessment in the Karst Area, Southwest China

Forests ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 891
Author(s):  
Qian Zhang ◽  
Guilin Han ◽  
Xingliang Xu
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Ecological Risk ◽  
Southwest China ◽  
Risk Index ◽  
Contamination Factor ◽  
Karst Area ◽  
Risk Assessment Code ◽  
Bcr Sequential Extraction ◽  
Soil Heavy Metals

Human agricultural activities have resulted in widespread land degradation and soil contamination in the karst areas. However, the effects of reforestation after agricultural abandonment on the mobility risks and contamination of heavy metals have been rarely reported. In the present study, six soil profiles were selected from cropland and abandoned cropland with reforestation in the Puding karst regions of Southwest China. The Community Bureau of Reference (BCR) sequential extraction method was used to evaluate the compositions of different chemical fractions of soil heavy metals, including Fe, Mn, Cr, Zn, Ni, and Cd. The total contents of Cr, Ni, Zn, Cd, and Mn in the croplands were significantly higher than those in the abandoned croplands. For all soils, Cr, Ni, Zn, and Fe were mainly concentrated in the residual fractions (>85%), whereas Mn and Cd were mostly observed in the non-residual fractions (>65%). The non-residual fractions of Cd, Cr, Ni, and Zn in the croplands were higher than those in the abandoned croplands. These results indicated that the content and mobility of soil heavy metals decreased after reforestation. The individual contamination factor (ICF) and risk assessment code (RAC) showed that Cd contributed to considerable contamination of karst soils. The global contamination factor (GCF) and potential ecological risk index (RI) suggested low contamination and ecological risk of the investigated heavy metals in the croplands, moreover they can be further reduced after reforestation.

scholarly journals Improved Mapping of Soil Heavy Metals Using a Vis-NIR Spectroscopy Index in an Agricultural Area of Eastern China

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 42584-42594 ◽  
Author(s):  
Jianfei Cao ◽  
Chunfang Li ◽  
Quanyuan Wu ◽  
Jianmin Qiao
Keyword(s):  
Heavy Metals ◽  
Eastern China ◽  
Nir Spectroscopy ◽  
Agricultural Area ◽  
Soil Heavy Metals

Enhancing the soil heavy metals removal efficiency by adding HPMA and PBTCA along with plant washing agents

2017 ◽  
Vol 339 ◽  
pp. 33-42 ◽  
Author(s):  
Yaru Cao ◽  
Shirong Zhang ◽  
Guiyin Wang ◽  
Ting Li ◽  
Xiaoxun Xu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Removal Efficiency ◽  
Heavy Metals Removal ◽  
Soil Heavy Metals ◽  
Metals Removal

Heavy Metals and Nutrients Uptake by Medicinal Plants Cultivated on Multi-metal Contaminated Soil Samples from an Abandoned Gold Ore Processing Site

2016 ◽  
Vol 227 (10) ◽  
Author(s):  
Cácio Luiz Boechat ◽  
Filipe Selau Carlos ◽  
Clésio Gianello ◽  
Flávio Anastácio de Oliveira Camargo
Keyword(s):  
Heavy Metals ◽  
Medicinal Plants ◽  
Contaminated Soil ◽  
Soil Samples ◽  
Gold Ore ◽  
Ore Processing ◽  
Nutrients Uptake ◽  
Processing Site
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