An Integrated Environmental Biotechnology for Enhanced Bioremediation of Crude Oil Contaminated Agricultural Land

Bio-Research ◽  
2004 ◽  
Vol 1 (2) ◽  
Author(s):  
INE Onwurah
Keyword(s):  
Crude Oil ◽  
Environmental Biotechnology ◽  
Agricultural Land ◽  
Enhanced Bioremediation

Application of nitrogen fixing bacteria and poultry droppings for enhanced bioremediation of crude oil polluted-soil

2021 ◽  
Vol 20 (1) ◽  
pp. 109-124
Author(s):  
V.C Wokem ◽  
E.D. Momoh
Keyword(s):  
Crude Oil ◽  
Niger Delta ◽  
Tropical Rainforest ◽  
Polluted Soil ◽  
Nitrogen Fixing ◽  
Delta Region ◽  
Nitrogen Fixing Bacteria ◽  
Niger Delta Region ◽  
Enhanced Bioremediation ◽  
Poultry Droppings

The exploration, production and refining of crude oil has led to severe environmental degradation in the oil producing communities of the Niger Delta region of Nigeria. Enhanced bioremediation of tropical rainforest soil artificially polluted with crude oil, bioaugmented with nitrogen fixing bacteria (NFB) and biostimulated with poultry droppings was carried out ex situ. Soil sample was collected at 15cm depth from tropical rainforest soil of the University of Port Harcourt, Nigeria. The NFB was isolated from roots of leguminous plant Arachis hypogea, identified as Nitrobacter species. Bioaugmentation by application of NFB served as option A, option B (biostimulation by application of poultry droppings), option C (No amendment) served as the control. Bioremediation was monitored for 28 days for interval of 14 days, and determined using the percentage ratio of total petroleum hydrocarbon (TPH) losses for each period to TPH at initial day (day zero). Results of total culturable heterotrophic bacterial (TCHB) counts showed that highest range in option B (1.9×104- 2.4×109Cfu/g) than in option A (7.8×106 -2.29×107Cfu/g) and C (6.75×106 -2.6×107Cfu/g) respectively. Similarly, hydrocarbon utilizing bacterial (HUB) counts had higher range in option B (1.20×105 - 1.9×107Cfu/g) than in option A (8.30×104 - 2.30×105Cfu/g) and option C control (4.3×104 −1.69×105 Cfu/g) respectively. Changes in physicochemical parameters during the study showed reductions in nitrate, phosphate and TPH in all the options expect pH which showed slight increase in option C (6.20-6.24). Characterization and identification for bacteria revealed the following HUB genera Pseudomonas, Citrobacter, Bacillus, Corynebacterium, Micrococcus, Klebsiella, Staphylocuccus and Nitrobacter). The percentage losses in TPH from gas chromatography (GC) results showed the following; option A (44.24%) option B (61.08%) and option C - control (27.28%) respectively. The results from this study showed that option B, the application of poultry droppings as biostimulant was more efficient than the application of NFB in enhanced bioremediation of crude oil polluted soil, hence the use of poultry droppings which is available as organic waste, eco-friendly and cost-effective is recommended asbiostimulant for enhanced bioremediation in environmental cleanup of crude oil impacted-sites of the Niger Delta region of Nigeria. Key Words: Bioremediation, Crude oil polluted-soil, Biostimulation, Bioaugumentation, Poultry droppings, Nitrogen fixing bacteria.

scholarly journals Enhanced bioremediation of crude oil polluted water by a hydrocarbon-degrading Bacillus strain immobilized on polyurethane foam

2020 ◽  
Vol 18 (3) ◽  
pp. 581-588
Author(s):  
Kieu Thi Quynh Hoa ◽  
Nguyen Vu Giang ◽  
Nguyen Thi Yen ◽  
Mai Duc Huynh ◽  
Nguyen Huu Dat ◽  
...  
Keyword(s):  
Crude Oil ◽  
Petroleum Hydrocarbons ◽  
Immobilized Cells ◽  
Polluted Water ◽  
Contaminated Water ◽  
Bacillus Sp ◽  
Microbial Cells ◽  
Bacillus Strain ◽  
Enhanced Bioremediation ◽  
Marine Environmental

During the production and transportation of petroleum hydrocarbons, unsuitable operation and leakage may result in contamination of water and soil with petroleum hydrocarbons. Petroleum contamination causes significant marine environmental impacts and presents substantial hazards to human health. Bioremediation of contaminated water and soil is currently the effective and least harmful method of removing petroleum hydrocarbons from the environment. To improve the survival and retention of the bioremediation agents in the contaminated sites, microbial cells must be immobilized. It was demonstrated that immobilized microbial cells present advantages for degrading petroleum hydrocarbon pollutants compared to free suspended cells. In this study, the ability of a Bacillus strain (designed as Bacillus sp. VTVK15) to immobilize on PUF and to degrade crude oil was investigated.  The immobilized Bacilllus strain had the highest number (5.38 ± 0.12 Í 108 CFU/g PUF) and a maximum attachment efficiency of 92% on PUF after 8 days. Analysis by GC-MS revealed that both free and immobilized cells of Bacillus sp. VTVK15 were able to degrade 65 and 90% of the hydrocarbons in 2% (v/v) crude oil tested after 14 days, respectively. The results suggest the potential of using PUF-immobilized Bacillus sp. VTVK15 to bioremediate petroleum hydrocarbons in an open marine environment.

Enhanced bioremediation of crude oil utilizing lipophilic fertilizers

Desalination ◽  
2007 ◽  
Vol 211 (1-3) ◽  
pp. 286-295 ◽  
Author(s):  
M. Nikolopoulou ◽  
N. Pasadakis ◽  
N. Kalogerakis
Keyword(s):  
Crude Oil ◽  
Enhanced Bioremediation

scholarly journals Reflections on Pottery Art in the Oil Rich Niger Delta Region of Nigeria: A Study of Pottery Art in Akwa Ibom and Rivers States

2019 ◽  
Vol 4 (3) ◽  
pp. 145-151
Author(s):  
Edem Etim Peters
Keyword(s):  
Crude Oil ◽  
Niger Delta ◽  
Oil And Gas ◽  
Agricultural Land ◽  
Vital Role ◽  
Basic Material ◽  
Delta Region ◽  
Secondary Sources ◽  
Niger Delta Region ◽  
The People

Niger Delta region is very rich in oil and gas deposits, clay, agricultural land, fisheries, extensive forest and other resources. They are nine states which make the region namely, Abia, Akwa Ibom, Bayelsa, Cross River, Delta, Edo, Imo, Ondo and Rivers. The most oil producing communities among them are Akwa Ibom, Bayelsa, Edo, Delta and Rivers State. Clay is equally found in abundance in all the states like crude oil is found in Niger Delta communities. The available clay mineral in the region has the capacity to transform the nation’s economy if properly utilized. Clay is the basic material for pottery or ceramics production. It is also used to ease the penetration of pipes in drilling of crude oil. This paper looks at the practice of pottery in Niger Delta Area with a focus on pottery practice in both Akwa Ibom and Rivers States. Indigenous and contemporary pottery or ceramics practices in these communities indeed have played vital role in the economic, social religious and cultural ways of life of the people. Clay products such as dinnerware and sanitary wares and others are highly sought for and they have the capacity to boast the national economy as experienced in other nations such as Japan, Italy, Britain, United States of America, India and China among others. Data were collected from both primary and secondary sources and were subsequently assessed. The result shows that proper utilization of clay found in Niger Delta has the potential to create numerous job opportunities for the teaming population of youths in the region. The availability of abundant clay in the region, if well harnessed could adequately compete with crude oil exploitation for economic purposes in the region.

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