ISOLATION AND IDENTIFICATION OF ANIONIC SURFACTANT DEGRADING BACTERIA FROM ACTIVATED SLUDGE

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MOZAFAR N.A.; MALEKZADEH FEREYDOUN; HOSSEINI F.; GHAEMI N.

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Journal Paper

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Journal: Iranian Biomedical Journal Year:2007 | Volume:11 | Issue:2 Page(s): 81-86

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Title

ISOLATION AND IDENTIFICATION OF ANIONIC SURFACTANT DEGRADING BACTERIA FROM ACTIVATED SLUDGE

Author(s)

MOZAFAR N.A. | MALEKZADEH FEREYDOUN | HOSSEINI F. | GHAEMI N. | Issue Writer Certificate

Keywords

LINEAR ALKYLBENZENE SULFONATE (LABS)

BIODEGRADATION

ACTIVE SLUDGE

ANIONIC SURFACTANT

Abstract

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.

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APA: Copy

MOZAFAR, N.A., MALEKZADEH, FEREYDOUN, HOSSEINI, F., & GHAEMI, N.. (2007). ISOLATION AND IDENTIFICATION OF ANIONIC SURFACTANT DEGRADING BACTERIA FROM ACTIVATED SLUDGE. IRANIAN BIOMEDICAL JOURNAL, 11(2), 81-86. SID. https://sid.ir/paper/277143/en

Vancouver: Copy

MOZAFAR N.A., MALEKZADEH FEREYDOUN, HOSSEINI F., GHAEMI N.. ISOLATION AND IDENTIFICATION OF ANIONIC SURFACTANT DEGRADING BACTERIA FROM ACTIVATED SLUDGE. IRANIAN BIOMEDICAL JOURNAL[Internet]. 2007;11(2):81-86. Available from: https://sid.ir/paper/277143/en

IEEE: Copy

N.A. MOZAFAR, FEREYDOUN MALEKZADEH, F. HOSSEINI, and N. GHAEMI, “ISOLATION AND IDENTIFICATION OF ANIONIC SURFACTANT DEGRADING BACTERIA FROM ACTIVATED SLUDGE,” IRANIAN BIOMEDICAL JOURNAL, vol. 11, no. 2, pp. 81–86, 2007, [Online]. Available: https://sid.ir/paper/277143/en

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