Utilization of hydrocarbons by cyanobacteria from microbial mats on oily coasts of the Gulf

Hasan, Rockybul; Sorkhoh, N.A.; Al‐Bader, Dhia; Radwan, S. S.

doi:10.1007/bf00178499

Cited by 53 publications

(25 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the degradation of crude oil (C10-C40) in algalbacterial suspended growth batch systems, some researchers have reported degradation at a low N:P ratio of 0.98:1 (mole basis) [11,13,16], whereas, other researchers have reported degradation at a relatively higher N:P ratio of 23.9:1 (mole basis) [17]. For the degradation of aromatic pollutants in algalbacterial suspended growth batch studies, N:P ratio of 1.01:1 (mole basis) was utilized [10].…”

Section: Reactor Performancementioning

confidence: 99%

“…In the coastal environment of the Arabian Gulf experiencing frequent oil pollution, oil degrading bacterial cultures are found to associate with cyanobacterial (blue-green algae) mats [11][12][13]. While some cyanobacterial cultures may play a direct role in hydrocarbon degradation, others may facilitate hydrocarbon degradation indirectly by providing surfaces for adherence of oil degrading bacterial cultures [12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

“…While some cyanobacterial cultures may play a direct role in hydrocarbon degradation, others may facilitate hydrocarbon degradation indirectly by providing surfaces for adherence of oil degrading bacterial cultures [12][13][14][15][16]. As a result of this association, the bacterial cultures are prevented from being washed-out even under turbulent conditions.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Treatment of hydrocarbon-rich wastewater using oil degrading bacteria and phototrophic microorganisms in rotating biological contactor: Effect of N:P ratio

Chavan

Mukherji

2008

Journal of Hazardous Materials

119

View full text Add to dashboard Cite

Section: Reactor Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Treatment of hydrocarbon-rich wastewater using oil degrading bacteria and phototrophic microorganisms in rotating biological contactor: Effect of N:P ratio

Chavan

Mukherji

2008

Journal of Hazardous Materials

119

View full text Add to dashboard Cite

“…The first in-situ bioremediation system was installed over 20 years ago in Pennsylvania to remediate an oil pipeline spill (National Research Council, 1993). Bioremediation has been used on a large scale to mitigate the effects of the Exxon Valdez spill in Prince William Sound, Alaska (Button, 1992;Venosa, 1992) and the release of oil during the Persian Gulf War (Fayad, 1992;Hasan, 1994 . Tilling alone to promote soil aeration reduced soil toxicity as well (Song, 1990 (Gottschalk, 1986).…”

Section: Remediation Of Petroleum-contaminated Sitesmentioning

confidence: 99%

Bioremediation Treatability Studies for Soils Containing Herbicides, Chemicals, and Petroleum Products

Nies¹,

Mesarch²

1996

View full text Add to dashboard Cite

Leaking underground storage tanks are widespread throughout the United States. It is estimated that there are 1 .4 million underground gasoline storage tanks in the United States, with as many as 75,000 to 1 00,000 that may be leaking. In Indiana alone, more than 3,500 of the 1 5,000 registered underground storage tank facilities have reported leaks. Conventional remediation methods often involve pump-and-treat schemes for contaminated water, and excavation and burial of contaminated soil in hazardous waste landfills. These methods increase the risk of exposure to pollutants for workers and local residents. Furthermore, these methods merely involve the transfer of pollutants from one environmental compartment to another, and are rather costly. Bioremediation is another method available for the restoration of contaminated sites. Advantages of bioremediation include competititive cost, pollutant destruction, and minimal environmental disturbance. By biodegrading organic pollutants on site, exposure to pollutants is minimized and costs are reduced. Bioremediation can potentially be an effective, low-cost, and terminal solution for remediation of sites contaminated with organic pollutants. The goal of bioremediation is to accelerate the biodegradation rates of naturally occurring microorganisms that utilize organic pollutants as a food source. The overall objective of this study was to determine whether bioremediation is a feasible treatment option for contaminated INDOT soils. All INDOT soils tested had three things in common. First, a thriving heterotrophic microbial population existed. Second, bacteria capable of degrading benzoate (a toluene surrogate) were present in all soils. Finally, toluene biodegradation in all soils indicated indigenous populations with the catabolic capabilities to remediate petroleum hydrocarbons. This study provides some evidence that physical, rather than microbial, parameters control biological processes in soil. Based on these results as a whole, we conclude that in-situ bioremediation of petroleum hydrocarbons is a treatment option which should have increased utilization.17.

show abstract

“…Shortly thereafter massive growth of bluegreen mats occurred on the top of coastal oil sediments (Sorkhoh et al 1992). The microbiological analysis of these mats revealed that they consisted of the filamentous cyanobacteria Phormedium and Microcoleus, which were immobilizing large numbers of hydrocarbon utilizing microorganisms (Al-Hasan et al 1994, 1998, Sorkhoh et al 1992. Each gram of the mat was found to contain several million hydrocarbon-utilizing bacteria belonging predominantly to the group of nocardioforms, particularly the genus Rhodococcus.…”

Section: Introductionmentioning

confidence: 99%

Potential application of coastal biofilm-coated gravel particles for treating oily waste

Radwan

Al-Hasan²

2001

Aquat. Microb. Ecol.

View full text Add to dashboard Cite

This paper reports on hydrocarbon-degrading microbial consortia immobilized in biofilms on gravel particles in the intertidal zone of the Arabian Gulf coast. These microorganisms contribute to the self-cleaning of the coasts and, in addition, could potentially be used for cleaning oily industrial waste before its disposal in the open environment. Each gravel particle was found coated with about 100 mg biofilm of blue-green biomass. The predominant phototrophs were the cyanobacteria Dermocarpella and to a lesser degree Lyngbya sp. The most dominant hydrocarbondegrading bacterium in this consortium was Acinetobacter calcoaceticus; minor bacteria included Micrococcus and nocardioforms. The biofilm-coated gravel particles were used in 5 successive cycles of purification of oily sea water. This immobilized microflora was efficient during all cycles in hydrocarbon consumption. In contrast, bacteria adhering to biomass-uncoated gravel particles brought about hydrocarbon degradation in the first few cycles, but then gradually lost their cleaning potential, apparently due to their successive washing out from the particles during successive cycles.

show abstract

Utilization of hydrocarbons by cyanobacteria from microbial mats on oily coasts of the Gulf

Cited by 53 publications

References 13 publications

Treatment of hydrocarbon-rich wastewater using oil degrading bacteria and phototrophic microorganisms in rotating biological contactor: Effect of N:P ratio

Treatment of hydrocarbon-rich wastewater using oil degrading bacteria and phototrophic microorganisms in rotating biological contactor: Effect of N:P ratio

Bioremediation Treatability Studies for Soils Containing Herbicides, Chemicals, and Petroleum Products

Potential application of coastal biofilm-coated gravel particles for treating oily waste

Contact Info

Product

Resources

About