SCREENING EFFECTIVE FACTORS IN SLURRY PHASE BIOREMEDIATION OF 2,4,6-TRINITROTOLUENE (TNT) CONTAMINATED SOIL

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SHEIBANI G.; NAEIMPOOR F.; HEJAZI P.

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Journal: IRANIAN JOURNAL OF CHEMICAL ENGINEERING Year:2011 | Volume:8 | Issue:2 Page(s): 29-40

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Title

SCREENING EFFECTIVE FACTORS IN SLURRY PHASE BIOREMEDIATION OF 2,4,6-TRINITROTOLUENE (TNT) CONTAMINATED SOIL

Author(s)

SHEIBANI G. | NAEIMPOOR F. | HEJAZI P. | Issue Writer Certificate

Keywords

BIOREMEDIATION

EXPLOSIVE

FRACTIONAL FACTORIAL DESIGN

SLURRY PHASE

TNT

Abstract

Soil contamination with TNT is a serious environmental hazard due to the toxic and mutagenic effects of TNT. BIOREMEDIATION is an environmentally safe method in the treatment of EXPLOSIVE-contaminated sites. In the present research, after selection of superior bacteria in the aqueous phase, BIOREMEDIATION of TNT contaminated clay soil at 1000 mg/kg was performed in SLURRY PHASE, which resulted in a maximum TNT removal of 89% after 15 days. Afterwards, the effects of operational and environmental factors were examined via the two-level FRACTIONAL FACTORIAL DESIGN method (27-3IV) for seven factors, i.e., glucose (2, 8 g/l), yeast extract (0, 0.2 g/l), (NH4)2 SO4 (0.1, 0.5 g/l), Tween 80 (1, 5 g/l) and slurry concentrations (20, 40% w/v) as well as inoculum size (5, 10% v/v) and temperature (20, 35oC). Among these factors, significant factors were found to be slurry, surfactant and glucose concentrations as well as inoculum size. In addition, considerable interactions were observed between glucose and the other significant factors.

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APA: Copy

SHEIBANI, G., NAEIMPOOR, F., & HEJAZI, P.. (2011). SCREENING EFFECTIVE FACTORS IN SLURRY PHASE BIOREMEDIATION OF 2,4,6-TRINITROTOLUENE (TNT) CONTAMINATED SOIL. IRANIAN JOURNAL OF CHEMICAL ENGINEERING, 8(2), 29-40. SID. https://sid.ir/paper/298331/en

Vancouver: Copy

SHEIBANI G., NAEIMPOOR F., HEJAZI P.. SCREENING EFFECTIVE FACTORS IN SLURRY PHASE BIOREMEDIATION OF 2,4,6-TRINITROTOLUENE (TNT) CONTAMINATED SOIL. IRANIAN JOURNAL OF CHEMICAL ENGINEERING[Internet]. 2011;8(2):29-40. Available from: https://sid.ir/paper/298331/en

IEEE: Copy

G. SHEIBANI, F. NAEIMPOOR, and P. HEJAZI, “SCREENING EFFECTIVE FACTORS IN SLURRY PHASE BIOREMEDIATION OF 2,4,6-TRINITROTOLUENE (TNT) CONTAMINATED SOIL,” IRANIAN JOURNAL OF CHEMICAL ENGINEERING, vol. 8, no. 2, pp. 29–40, 2011, [Online]. Available: https://sid.ir/paper/298331/en

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