Isolation and identification of anionic surfactant degrading bacteria from activated sludge.

Isolation and identification of anionic surfactant degrading bacteria from activated sludge. Research Abstract Details 

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Isolation and identification of anionic surfactant degrading bacteria from activated sludge. Abstract Text:

Nour Amirmozafari,Fereidon Malekzadeh,Farzaneh Hosseini,Nasser Ghaemi,Nour Amirmozafari,Fereidon Malekzadeh,Farzaneh Hosseini,Nasser Ghaemi,

BACKGROUND: Linear alkylbenzene sulfonate (LABS) is an anionic surfactant widely used all over the world. They will eventually end-up and accumulate in household or industrial sewage. Due to their high foaming capabilities which can cause numerous problems in sewage treatment facilities as well as direct toxic effects on many different organisms in ecosystem; they are generally considered as serious pollutants. Many reports have indicated that common bacteria can readily degrade LABS. METHODS: In this survey, two different bacteria were isolated from Tehran municipal active sludge that showed the ability to degrade LABS rapidly and actively upon using it as their sole source of carbon. Biochemical tests as well as 16S rRNA gene sequencing performed. RESULTS: Results have indicated the two isolates to be Acinetobacter johnsoni and Pseudomonas beteli. After experiments to optimize the pH and temperature for growth of the two bacterial isolates, the extent of LABS, utilization was evaluated by HPLC method. The Pseudomonas beteli and Acinetobacter johnsoni isolates were able to degrade 96.4% and 97.2% of the original LABS levels after 10 days of growth, respectively. Mixed culture of the two isolates did not significantly increase LABS utilization (97.6%). CONCLUSION: Our study showed the ability of two isolated steains to rapidly biodegrade LABS under aerobic conditions.

Isolation and identification of anionic surfactant degrading bacteria from activated sludge. Publishing Authors By Initials

N Amirmozafari,F Malekzadeh,F Hosseini,N Ghaemi,N Amirmozafari,F Malekzadeh,F Hosseini,N Ghaemi,

For similar chemical actions and uses: specialty uses of chemicals: surface-active agents research abstracts see: chemical actions and uses: specialty uses of chemicals: surface-active agents research

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Isolation and identification of anionic surfactant degrading bacteria from activated sludge. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Iranian biomedical journal

VOLUME: 11

Page Numbers: 81-6

Journal Abbreviation: Iran. Biomed. J.

ISSN: 1028-852X

DAY: 23

MONTH: Apr

YEAR: 2007

Isolation and identification of anionic surfactant degrading bacteria from activated sludge. Information

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LANGUAGE: eng

NlmUniqueID: 9814853

Isolation and identification of anionic surfactant degrading bacteria from activated sludge. Keywords Mesh Terms:

KEYWORDS: Surface-Active Agents

MESH TERMS: analysis

Chemical & Substance for Abstract: Isolation and identification of anionic surfactant degrading bacteria from activated sludge. Information

Substance Name: alkylbenzyl sulfonic acid

Registry Number: 0

Grant and Affiliation Information for Isolation and identification of anionic surfactant degrading bacteria from activated sludge.

AFFILIATION: Dept. of Microbiology, Iran University of Medical Science, Tehran, Iran.

Country: Iran

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MEDLINETA: Iran Biomed J

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