Initial test of a bioremediation scheme for the clean up of an oil-polluted waterbody in a rural community in Nigeria

Abu, Gideon O.; Ogiji, Pius A.

doi:10.1016/s0960-8524(96)00080-6

Cited by 22 publications

(19 citation statements)

References 3 publications

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“…It has been well established that the availability of nitrogen and phosphorus limits the microbial degradation of hydrocarbon (Abu and Ogiji, 1996;Zhu et al, 2001). However, the slight decrease in the control experiment (without amendment) indicated that there was no active bioremediation in the control since it was not amended with nutrients.…”

Section: Ajesmentioning

confidence: 99%

BIOREMEDIATION OF PETROLEUM HYDROCARBON-POLLUTED MANGROVE SWAMPS USING NUTRIENT FORMULA PRODUCED FROM WATER HYACINT (<I>EICCHORNIA CRASSIPES</I>)

Orji¹,

Ibiene

Okerentugba

2013

American Journal of Environmental Sciences

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Laboratory-scale studies were carried out using a nutrient formula produced from Eicchornia crassipes plant to achieve bioremediation of crude oil impacted mangrove soil. In a 70 day study, the culturable heterotrophic bacterial population of the Eichhornia crassipes recipe increased from 6.26×105 Cfu/g to 2.69×10 7 Cfu/g. The control set-up had its total culturable bacterial count increased from 5.76×10 5 Cfu/g to 1.24×10 6 Cfu/g. Statistical analyses showed significant difference for the two conditions (p ≥ 0.05). The total culturable heterotrophic fungal count in the Eichhornia crassipes recipe treatment increased from 5.36×105 Cfu/g to 2.50×10 7 Cfu/g respectively. The total culturable hydrocarbon utilising bacteria in Eichhornia crassipes treated polluted mangrove soil increased from 2.52×104 Cfu/g to 3.81×10 7 Cfu/g. Statistical analyses showed significant difference at p ≥ 0.05 level for the two conditions (Eicchornia crassipes nutrient treated soil and control). The total culturable hydrocarbon utilising fungal counts increased significantly for both the control and Eichhornia crassipes treatment. There was no regular trend in pH changes in all the conditions. The conductivity value of the Eichhornia crassipes recipe treated soil decreased progressively. Phosphate, nitrate, %total organic carbon, Total Hydrocarbon Content (THC). Studies using Gas chromatographic analyses showed that in the Eichhornia crassipes recipe treated polluted mangrove soil, 0, 58.92 and 75.36% were lost at zero hour, 28th day and 70th day respectively. In addition, in the control experimental set-up, 0, 7.14 and 13.42% of TPH were lost at zero hour, 28th day and 70th day respectively. There was no significant difference between the control experiment and Eichhornia crassipes (p = 0.054). The use of organic nutrient sources such Eichhornia crassipes recipe/nutrient powder is of good use as source of limiting nutrient needed for bioremediation of crude oil impacted medium.

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Section: Ajesmentioning

confidence: 99%

BIOREMEDIATION OF PETROLEUM HYDROCARBON-POLLUTED MANGROVE SWAMPS USING NUTRIENT FORMULA PRODUCED FROM WATER HYACINT (<I>EICCHORNIA CRASSIPES</I>)

Orji¹,

Ibiene

Okerentugba

2013

American Journal of Environmental Sciences

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“…The isolates were characterized based on cultural characteristics, cell morphology and biochemical characteristics. The organisms were further identified using the methods of Gerharelt et al (1981) and screened for their utilization of diesel oil using the methods of Abu and Ogiji (1996).…”

Section: Isolation Of Microorganismsmentioning

confidence: 99%

“…Each isolate was steak-inoculated unto modified mineral salt agar medium which contain a filter paper soaked with diesel oil. The plates were incubated for 7 days at room temperature using the methods of Abu and Ogiji (1996).…”

Section: Hydrocarbon Utilization Testmentioning

confidence: 99%

Degradation of diesel oil in a polluted soil using Bacillus subtilis

Nwaogu¹,

Onyeze²,

Nwabueze³

2008

Afr. J. Biotechnol.

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Diesel oil, left standing in a laboratory for six months, was used as source for the isolation of Bacillus subtilis, Bacillus cereus, Trichoderma harzanium and Trichothercium roseum. These organisms were found to be hydrocarbon degraders. On further testing, it was found that B. subtilis had higher potential to utilize diesel oil as carbon source. Soil samples were polluted with diesel oil at a loading rate of 5% (v/w) (oil/soil). These soil samples, together with the unpolluted control samples, were seeded with the B. subtilis isolate. The degradation of the diesel oil was monitored over a twenty-seven-day period, using gravimetric method. The rates of degradation of diesel oil by the isolate at the end of day one, day twelve and day twenty-seven were 5.8 x 10-4 , 1.83 x 10-3 and 1.05 x 10-3 g/h, respectively.

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“…These cases have devastating effects on both fauna and flora of the soil (Orhorhoro et al, 2018: Odokuma, 2012). The effect of pollution on both aquatic and terrestrial ecosystems have different levels of severity to the biota; Presence of these pollutants above recommended threshold in the environment is deleterious to soil biota at varied proximal niches as pollutants are due to increased percolation and seepages, which have far reaching effect on non-target population [2,3]. Elevated concentrations of pollutants in the soil affects soil fertility and bioavailability of nutrients to plants.…”

Section: Introductionmentioning

confidence: 99%

Niche-proxies of Hydrocarbon-impacted Rhizosphere Soil of Weeds of Bodo in Gokana, Rivers State, Nigeria

Effiong

Agwa

Abu

2020

ACRI

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Niche-ecology and isolation studies of microbes from the environment have been described as the bedrock and driving-force for bioprocess industry. This investigation was designed to determine the microbiological quality of weeds growing on aged-crude oil polluted soil. Ten (10) weeds Cyperus esculentus, Scleria pauciflora. Asystasia gangetica Harungana madagascariensis, Ancistoclaudus tectorius, Kyllinga erecta, Cinna arundinacea, Brassica chinensis, Cyperus difformis, Kyllinga bulbosa and Brachiaria mutica and their rhizospheric soil were obtained from Bodo, Gokana LGA, Sludge farm and Botanical garden of the University of Port Harcourt, Rivers State, Nigeria. The soil was enriched in Mineral Salt Media and Bonny Light Crude Oil, prior to the spread-plating on solidified media. Result of the analysis showed pH of soil samples ranged from 5.26-7.2; Electrical conductivity was 53.4-80.31µS/cm, and phosphate 0.74-5.35 mg/kg. Levels of Vanadium in pre-impacted rhizosoil obtained from Kyllinga erecta and Cinna arundinaceae were 0.61 and 0.70 mg/kg respectively. Moisture content of soil obtained from polluted and pristine environments were 11.75% and 17.82% respectively. Permeability indices were 9.0 describing the pristine soil to have low plasticity. Total heterotrophic bacterial count was within 3.5-8.0 Log10 Cfu/g distributed among the weed rhizospheres. Cyperus esculentus rhizosphere soil was more dominated with others like Achromobacter sp, B. lichenformis, B. anthracis, B. subtilis, B. fumari, Arthrobacter sp, Pseudomonas sp, P. aeruginosa, P. fluorescens. Fungal isolates were Aspergillus terreus, Trichoderma sp, and Fusarium sp. These findings further support the rhizosphere of plants as a rich bioresource for biomining of high throughput strains for biotechnological application.

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Initial test of a bioremediation scheme for the clean up of an oil-polluted waterbody in a rural community in Nigeria

Cited by 22 publications

References 3 publications

BIOREMEDIATION OF PETROLEUM HYDROCARBON-POLLUTED MANGROVE SWAMPS USING NUTRIENT FORMULA PRODUCED FROM WATER HYACINT (<I>EICCHORNIA CRASSIPES</I>)

BIOREMEDIATION OF PETROLEUM HYDROCARBON-POLLUTED MANGROVE SWAMPS USING NUTRIENT FORMULA PRODUCED FROM WATER HYACINT (<I>EICCHORNIA CRASSIPES</I>)

Degradation of diesel oil in a polluted soil using Bacillus subtilis

Niche-proxies of Hydrocarbon-impacted Rhizosphere Soil of Weeds of Bodo in Gokana, Rivers State, Nigeria

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