Migration of BTEX and Biodegradation in Shallow Underground Water through Fuel Leak Simulation

Cheng, Ying-Sheng; Chen, Yudao; Jiang, Yaping; Jiang, Ling-Zhi; Sun, Liwei; Li, Liuyue; Huang, J.Y.

doi:10.1155/2016/7040872

Cited by 13 publications

(4 citation statements)

References 7 publications

(7 reference statements)

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“…In the study areas, BTEX is influenced by anthropogenic activities. The findings are in agreement with those of Cheng, 2016, where proximity to sources of BTEX can influence contamination levels in the environment, which can be distributed in the environment vertically or horizontally in solvents (Cheng et al, 2016). Total organic carbon (TOC) is derived from putrefying organisms and metabolic activities of living organisms and also from synthetic sources (detergents, fertilizers, chlorinated organics, herbicides and industrial chemicals).…”

Section: Tocsupporting

confidence: 90%

Oil-Gas and Environmental Nexus: Impact of Human Actions on selected Soil Physicochemical Parameters in Port Harcourt and its environment, Nigeria

Muyoma¹,

Ododkuma²,

Ibisime³

et al. 2019

Journal of Applied Sciences and Environmental Management

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Impact of oil and gas activities on quality of soil in Port Harcourt and its environments was assessed. The study evaluates levels of physicochemical parameters associated with oil and gas industry in soils of 9 locations in Port Harcourt and its environs in Rivers State in Nigeria using standard methods. Composite samples were collected by random sampling from each of the 9 test locations, 3 control samples were also collected from each of the study areas. Benzene, Toluene, Ethyl-benzene, and Xylene (BTEX) and Total Petroleum Hydrocarbon (TPH) was measured using Gas Chromatography (Hewlett Packard 5890 Series II Gas Chromatograph FID). Total Organic Carbon (TOC) was measured using ASMD standard methods of analysis (ASMD 2579). Refinery Eleme and Aluu recorded the highest mean levels of BTEX (3.21±0.61 and 3.24±0.18 ppm respectively). The mean levels of TPH in soil were within the EPA acceptable optimum of 50 mg/kg except at A2 (Oquwi). There was significant difference among test samples and control samples as determined by one-way ANOVA (F11, 24=3.395; p=0.006). The highest mean levels of TPH was at A2 (56.70±25.77 ppm). ANOVA revealed that there were significant differences in TOC (p=0.023), BTEX (p=<0.001) and TPH (p=<0.001) among the study areas. Industrial areas I1 [Onne], I2 [Agbada] and I3 [Trans-Amadi] recorded highest levels of TOC. Oil and gas activities in industrial areas in Port Harcourt have highest impact on levels of TOC in soils as compared to agricultural and urbanized areas. Oil and gas activities have negative impact on levels of BTEX. Industrial areas recorded highest levels followed by agricultural areas and lastly urbanized areas. The study concludes that oil and gas activities are a threat to soil health and integrity in Port Harcourt.

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Section: Tocsupporting

confidence: 90%

Oil-Gas and Environmental Nexus: Impact of Human Actions on selected Soil Physicochemical Parameters in Port Harcourt and its environment, Nigeria

Muyoma¹,

Ododkuma²,

Ibisime³

et al. 2019

Journal of Applied Sciences and Environmental Management

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“…There is possible link of the industries to contamination of the soils as seen by a lesser IM of 77% in the agricultural and 22% in the urban areas. BTEX is easily dispersed by water from points of original contamination to different locations [13]. BTEX is associated with petroleum industry and has serious implications with pollution of the environment which is health risk as they can cause nervous disfunction, cancer and renal and olfactory impairment [14].…”

Section: Discussionmentioning

confidence: 99%

Impacts of Anthropological Activities on Soils of Some Parts of Rivers State, Nigeria

Wanjala

Odokuma

Etela

et al. 2019

IRJPAC

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The study is a post project implementation Environmental Monitoring (EM) of impacts of anthropological activities on levels of soil physicochemical parameters. The study evaluates levels of physicochemical parameters in soils of 9 locations in Port Harcourt and its environs in Rivers State, Nigeria, grouped into 3 categories; urbanized, industrialized and agricultural. Composite soil samples were collected between April to October 2018. Concentration levels of Benzene, Toluene, Ethyl-benzene, and Xylene (BTEX), Total Petroleum Hydrocarbon (TPH), Percent Total Organic Carbon (% TOC), Lead (Pb), Iron (Fe), Copper (Cu), Cadmium (Cd), Zinc (Zn), Calcium (Ca), Nickel (Ni), Sodium (Na), Potassium (K), Chromium (Cr), Magnesium (Mg), Manganese (Mn), and Sulphur (S) in soil was measured using standard analytical procedures. The study evaluates the impact magnitude (IM) of the obtained test values against control values. In industrial area, BTEX recorded the highest Impact Magnitude (IM) of 100% while TOC and TPH recorded 100.00% and 88.89% respectfully, and were classified as severely impacted (S). In the agricultural areas, TOC and Ni recorded IM of 88.89% while BTEX had an IM of 77.78% which were highest and were classified as severe impact (S). In urbanized areas, Ni and (Phosphate) PO43- recorded the highest IM of 88.89% and were classified as severe (S). The study establishes that urbanization, industrialization and agricultural activities do affect the level of physicochemical parameters in the study areas. Activities in industrial areas negatively impact on levels of BTEX, % TOC and TPH in soils. Activities in agricultural areas negatively impacted on levels of BTEX, NO3-, NO2- and SO42- in soils, and activities in urban areas negatively impact on levels of Ni, PO43-, Zn, Mn, TPH, % TOC and Ca in soils of the study areas. These findings form a reliable baseline data for future researchers in EM in the study areas. The study recommends EM of soil physicochemical parameters in the study area in order to ensure a healthy soil for food production in order for realization of Sustainable Development Goals (SDGs); Good Health and well-being, and sustainable cities and communities.

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“…Due to oil leaks from industrial complexes and petrol stations, soil and groundwater contamination are considered a severe environmental and social hazard (Zhang et al, 2006). Among these contaminants are the ubiquitous aromatic compounds such as polycyclic aromatic hydrocarbons (PAHs) that contaminate the environment because of the incomplete combustion of organic materials in addition to agricultural, domestic, and industrial processes (Cheng et al, 2016;Lahkar and Deka, 2016). PAHs encompass some of the most persistent natural pollutants belongs to PAHs, which have severe biological effects such as carcinogenicity, mutagenicity, and genotoxicity (Ledra, 2011;Cauduro et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Molecular characterization of a polycyclic aromatic hydrocarbons (PAHs) degrader, Burkholderia contaminans strain P14, isolated from aged oil-contaminated soil in Kuwait

Akbar

Rahmeh

Kishk

et al. 2022

Appl Env Biotechnol

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Soil contamination by polycyclic aromatic hydrocarbons (PAHs) and heavy metals is a major concern affecting soil quality. Bioremediation is an efficient approach to decontaminate these pollutants while posing the lowest risk to the environment. This technique is based on identifying microorganisms with the metabolic potential to degrade the pollutants. In this study, the physiochemical properties of oil-contaminated soils in Kuwait were investigated. The soil had alkaline pH (8.36) with a salinity of 0.08% and PAHs compounds were detected at high concentrations (pyrene, 1212 mg/kg), (phenanthrene, 710 mg/kg) and (fluorene 326 mg/kg). Heavy metals such as iron, aluminum, sodium, magnesium, vanadium, copper, etc., were also detected in the soil samples. Then, selective screening for PAH degraders was performed and assessed by colony forming units (CFU) and 16S rDNA gene sequences to determine their growth profiles and taxonomical identification. In total, 21 strains were selected for their resistance to PAHs, which include Pseudomonas (9), Burkholderia (6), Bacillus (2), Bordetella (1), Microbacterium (1), Micrococcus (1), and Kocuria (1). Among all, the growth by Burkholderia sp. P14, in the presence of phenanthrene and fluorene, has maintained a stationary phase from day 5 to 8 with a 6 log CFU/ml bacterial count. The draft genome of the Burkholderia contaminans P14 strain comprised 68 contigs with 8,584,157bp, 66% GC content, 4 rRNA and 75 tRNA. A total of 80 genes were involved in the degradation of the benzoate, naphthalene, and PAH . Genes that encode the PAH degradation were clustered into four distinct groups, including pcaHG, pcaB, pcaIJ, and pcaKFR and were found to be in contigs 5, 11, 8 and 13 of B. contaminans P14, respectively. KEGG analysis suggested that PAHs were degraded in P14 via the protocatechuate and catechol branches of the β-ketoadipate protocatechuate degradation pathway. The genomic island regions in P14 differed from those in the reference genome of B. contaminans M14, indicating the novelty and genomic recombination of the strain. Genomic information on P14 has helped clarify the molecular mechanisms involved in PAH catabolism. Burkholderia contaminans P14 strain will enhance the bioremediation of oil-contaminated soils.

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Migration of BTEX and Biodegradation in Shallow Underground Water through Fuel Leak Simulation

Cited by 13 publications

References 7 publications

Oil-Gas and Environmental Nexus: Impact of Human Actions on selected Soil Physicochemical Parameters in Port Harcourt and its environment, Nigeria

Oil-Gas and Environmental Nexus: Impact of Human Actions on selected Soil Physicochemical Parameters in Port Harcourt and its environment, Nigeria

Impacts of Anthropological Activities on Soils of Some Parts of Rivers State, Nigeria

Molecular characterization of a polycyclic aromatic hydrocarbons (PAHs) degrader, Burkholderia contaminans strain P14, isolated from aged oil-contaminated soil in Kuwait

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