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Hinteregger, Christel; Streichsbier, Franz

doi:10.1023/a:1018488410102

Cited by 82 publications

(13 citation statements)

References 13 publications

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“…Similarly, Hinteregger and Streischsberg (1997) reported that a Halomonas sp. isolated from a co-culture developed from GSL degraded phenol as the sole source of carbon in the presence of 1–14% salt.…”

Section: Degradation Of Hydrocarbons In Hypersaline Environmentsmentioning

confidence: 85%

Recent studies in microbial degradation of petroleum hydrocarbons in hypersaline environments

2014

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Many hypersaline environments are often contaminated with petroleum compounds. Among these, oil and natural gas production sites all over the world and hundreds of kilometers of coastlines in the more arid regions of Gulf countries are of major concern due to the extent and magnitude of contamination. Because conventional microbiological processes do not function well at elevated salinities, bioremediation of hypersaline environments can only be accomplished using high salt-tolerant microorganisms capable of degrading petroleum compounds. In the last two decades, there have been many reports on the biodegradation of hydrocarbons in moderate to high salinity environments. Numerous microorganisms belonging to the domain Bacteria and Archaea have been isolated and their phylogeny and metabolic capacity to degrade a variety of aliphatic and aromatic hydrocarbons in varying salinities have been demonstrated. This article focuses on our growing understanding of bacteria and archaea responsible for the degradation of hydrocarbons under aerobic conditions in moderate to high salinity conditions. Even though organisms belonging to various genera have been shown to degrade hydrocarbons, members of the genera Halomonas Alcanivorax, Marinobacter, Haloferax, Haloarcula, and Halobacterium dominate the published literature. Despite rapid advances in understanding microbial taxa that degrade hydrocarbons under aerobic conditions, not much is known about organisms that carry out similar processes in anaerobic conditions. Also, information on molecular mechanisms and pathways of hydrocarbon degradation in high salinity is scarce and only recently there have been a few reports describing genes, enzymes and breakdown steps for some hydrocarbons. These limited studies have clearly revealed that degradation of oxygenated and non-oxygenated hydrocarbons by halophilic and halotolerant microorganisms occur by pathways similar to those found in non-halophiles.

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Section: Degradation Of Hydrocarbons In Hypersaline Environmentsmentioning

confidence: 85%

Recent studies in microbial degradation of petroleum hydrocarbons in hypersaline environments

2014

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“…Hinteregger and Streichsbier (1997) worked on the effect of salt content (1–14%) on biotreatment of saline phenolic wastewater by a moderately halophilic strain and showed the adverse effect of salt on biotreatment. Nonetheless, Moussavi et al (2010) showed that salt content in the range of 3–8% has no effect on the GSBR performance containing the phenol-degraded biomass adapted to salt.…”

Section: Resultsmentioning

confidence: 99%

Biological removal of phenol from saline wastewater using a moving bed biofilm reactor containing acclimated mixed consortia

et al. 2014

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In this study, the performance of an aerobic moving bed biofilm reactor (MBBR) was assessed for the removal of phenol as the sole substrate from saline wastewater. The effect of several parameters namely inlet phenol concentration (200–1200 mg/L), hydraulic retention time (8–24 h), inlet salt content (10–70 g/L), phenol shock loading, hydraulic shock loading and salt shock loading on the performance of the 10 L MBBR inoculated with a mixed culture of active biomass gradually acclimated to phenol and salt were evaluated in terms of phenol and chemical oxygen demand (COD) removal efficiencies. The results indicated that phenol and COD removal efficiencies are affected by HRT, phenol and salt concentration in the bioreactor saline feed. The MBBR could remove up to 99% of phenol and COD from the feed saline wastewater at inlet phenol concentrations up to 800 mg/L, HRT of 18 h and inlet salt contents up to 40 g/L. The reactor could also resist strong shock loads. Furthermore, measuring biological quantitative parameters indicated that the biofilm plays a main role in phenol removal. Overall, the results of this investigation revealed that the developed MBBR system with high concentration of the active mixed biomass can play a prominent role in order to treat saline wastewaters containing phenol in industrial applications as a very efficient and flexible technology.

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“…Many cases of successful bioremediation of hydrocarbons have been reported using halophiles in marine, Arctic, and Antarctic environments [23,24], in salt-rich stratum fluids [25], in Lousiana salt marshes [26,27], in a biofilm reactor [28], in saline phenolic wastewater [29].…”

Section: Potential Applications In the Biotechnology Industrymentioning

confidence: 99%