Abstract
The study focused on the change in land-use and phytoremediation and biosorption efficacy of Lead and Cadmium from the petroleum-contaminated water by Lemna minor L. and Azolla pinnata. For the study of the change in land-use in Paloich, satellite imagery of Paloich between 2000 and 2020 was obtained from http://www.earthexplore.usgs.org/ and analyses. Water samples were collected at different points of Paloich. Experimental set-up consisted of four main samples sets viz: Lemna minor L. and petroleum-contaminated water, Azolla pinnata and petroleum contaminated water, combination of Lemna minor L., Azolla pinnata and petroleum-contaminated water then distilled water (control) all containing 3 liters of the water. Samples were left for 28 days. Physico-chemical parameters, heavy metals (Pb and Cd) and biosorption capacity were analyzed. The result indicates the changes in the land-use that occurred in the area of study for a given period (2000-2020). Built-up area, mining site and environmental degradation have increased by 8 percent between the periods. The reason behind the increase can be as a result of increase in population. The result also indicates high efficiency in pollutant reduction in the set-up containing the combination of Lemna minor L. and Azolla pinnata in which the Cd and Pb reduction efficiency recorded was 95% and 97% respectively. While set up containing Azolla P. had Pb and Cd reduction efficiency of 83% and 87% respectively. However, the set up containing Lemna minor L. has Pb and Cd reduction efficiency of 91% and 85% respectively. A significant absorption of the metals (Pb and Cd) were seen in the samples with the mixture of Lemna minor L. and Azolla pinnata. As such this study reveals the potentiality of Lemna minor L. and Azolla pinnata as some excellent phytoremediation candidates in the treatment of effluents containing Lead and Cadmium; however, we also recommend further studies on the efficacy of such plants in other classes of heavy metals.
Highlights
One of the ways of counteracting the effect of an increasing population is exploration and production of oil and gas
The study focused on the change in land-use and phytoremediation and biosorption efficacy of Lead and Cadmium from the petroleum-contaminated water by Lemna minor L. and Azolla pinnata
The result indicates high efficiency in pollutant reduction in the set-up containing the combination of Lemna minor L. and Azolla pinnata in which the Cd and Pb reduction efficiency recorded was 95% and 97% respectively
Summary
One of the ways of counteracting the effect of an increasing population is exploration and production of oil and gas. Africa, depend on this sector for economic stability [1]. The benefits of oil exploration and production include easy extraction, power generation, industrial growth, infrastructural development, and many more. The by-products of petroleum products include fertilizers, pesticides, and insecticides, which are important elements for the enhancement of agricultural products [2]. One of the negative effects associated with oil exploration and production is pollution. Opportunities exist for the release of pollutants such as straight chained, branched, cyclic, monocyclic aromatic, polycyclic aromatic hydrocarbons, and inorganic compounds including heavy metals, sulphide, sulphate, nitrate, phosphate, dissolved solids, suspended solids, etc. Opportunities exist for the release of pollutants such as straight chained, branched, cyclic, monocyclic aromatic, polycyclic aromatic hydrocarbons, and inorganic compounds including heavy metals, sulphide, sulphate, nitrate, phosphate, dissolved solids, suspended solids, etc. [3] [4] [5]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
