Phytoremediation Prospect in Clean Up of Contaminated Environment with Heavy Metals
Usman Umar Zango,
Aminu Abubakar,
Halima Ibrahim Mukhtar,
Sadiq Adamu Minjibir
Issue:
Volume 2, Issue 2, December 2018
Pages:
23-26
Received:
19 October 2018
Accepted:
19 November 2018
Published:
17 December 2018
DOI:
10.11648/j.ijaos.20180202.11
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Abstract: Heavy metals contamination of global environment arises from natural sources directly or indirectly from anthropogenic activities such as rapid industrialization, urbanization, energy generation, improper waste management and other local anthropogenic sources. Phytoremediation is a green emerging technology used to remove pollutants from environment components. Phytoremediation, an emerging cost-effective, non-intrusive, and aesthetically pleasing technology, that uses the remarkable ability of plants to concentrate elements and compounds from the environment and to metabolize various molecules in their tissues, appears very promising for the removal of pollutants from the environment. Within this field of phytoremediation, the utilization of plants to transport and concentrate metals from the soil into the harvestable parts of roots and above ground shoots, i.e., phytoextraction, may be, at present, approaching commercialization. Due to its great potential as a viable alternative to traditional contaminated land remediation methods, phytoremediation is currently an exciting area of active research. This paper highlighted the sources and effects of heavy metals. The paper also discussed the meaning, concept, advantages, and limitations of phytoremediation.
Abstract: Heavy metals contamination of global environment arises from natural sources directly or indirectly from anthropogenic activities such as rapid industrialization, urbanization, energy generation, improper waste management and other local anthropogenic sources. Phytoremediation is a green emerging technology used to remove pollutants from environmen...
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Investigation on the Water-Alternating Gas Oil Recovery Potential Based on Injection Well Location for the Albertine Oil Reservoir, Uganda
Marembo Micheal,
Asasira Sonia
Issue:
Volume 2, Issue 2, December 2018
Pages:
27-34
Received:
24 November 2018
Accepted:
13 December 2018
Published:
22 January 2019
DOI:
10.11648/j.ijaos.20180202.12
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Abstract: Uganda is naturally endowed with vast resources ranging from oil to precious stones including diamond among others. Venturing into exploration and development of these resources has recently taken a center stage. Currently, the Ugandan oil reservoir located in the Albertine region, Western Uganda has only been appraised and production has not begun. This study uses standard correlation equations, field analogs, and compares with existing literature to predict the future oil recovery potential of the Albertine reservoir using water flooding and water-alternating gas (WAG) as the enhanced oil recovery methods using Carbon dioxide as the injection gas. Field analogue results indicate that the oil recovery factor during primary production is 8% to 15% while the oil recovery factor during secondary production ranges from 18.2% to 62%. Simulation results show an oil recovery factor of 9.81% and 36.85% during primary and secondary production respectively. The optimum well location is 800ft from the producer with an oil recovery factor of 36.85%. Well location has an effect on over all oil recovery factor and higher recovery factor is achieved when the injection well is 800 ft from the producer. Water flooding yields 31.67% of the original oil in place (OOIP) while Carbon dioxide yields 62.30% of OOIP. When WAG injection process is preceded by waterflooding, the oil recovery factor is 5.57% higher than when WAG process is preceded by Carbon dioxide injection.
Abstract: Uganda is naturally endowed with vast resources ranging from oil to precious stones including diamond among others. Venturing into exploration and development of these resources has recently taken a center stage. Currently, the Ugandan oil reservoir located in the Albertine region, Western Uganda has only been appraised and production has not begun...
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