LIME AND GYPSUM EFFECTS ON PSEUDOMONAS FLUORESCENS TRANSPORT THROUGH SAND COLUMNS IN SATURATED CONDITION

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ROSTAMI K.; MAHBOUBI ALI AKBAR; MOSADEGHI M.R.; SAFARI SANJANI A.A.

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Journal: AGRICULTURAL RESEARCH Year:2006 | Volume:6 | Issue:3 Page(s): 61-73

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Title

LIME AND GYPSUM EFFECTS ON PSEUDOMONAS FLUORESCENS TRANSPORT THROUGH SAND COLUMNS IN SATURATED CONDITION

Author(s)

ROSTAMI K. | MAHBOUBI ALI AKBAR | MOSADEGHI M.R. | SAFARI SANJANI A.A. | Issue Writer Certificate

Keywords

GYPSUMQ2

LIMEQ3

PORE VOLUMEQ3

BREAKTHROUGH CURVEQ3

PSEUDOMONAS FLUORESCENSQ3

Abstract

Transport of pathogenic bacteria that can potentially contribute to surface and groundwater contamination, is paraimportant. In spite of the widespread distribution of gypsic and calcisols in Iran, there is no information on the effects of LIME and GYPSUM on bacteria transport phenomenon. This study was carried out to evaluate the influence of LIME and GYPSUM on Pseudomonas fluorescents transport through sand columns under saturated steady state conditions. Four levels of LIME: 0, 5, 10 and 20% w/w and three levels of GYPSUM: 0, 5 and 10% w/w were mixed with sand and arranged as a factorial design (completely randomized) with three replicates. The mixtures were poured into pyrex cylinders (with 20 cm height and 7 cm diameter) and steady-state water flow was imposed on the columns. Then, the influent was switched to a constant concentration (106 cfu ml-1) of PSEUDOMONAS FLUORESCENS. The leaching of the column was continued for five PORE VOLUMEs (PV) and the bacteria concentration of the effluent was measured. Adding the LIME and GYPSUM both affected the effluent concentration, significantly. The highest and the lowest pollutions of the drain water occurred in the pure sand columns and 20% LIME treatments, respectively. LIME addition significantly decreased the bacteria transport through the columns. The impacts of LIME and GYPSUM on effluent concentration were significant. The BREAKTHROUGH CURVEs could obviously represent the lowering of bacteria flux with LIME and GYPSUM additions. Overall, the results demonstrated the high adsorptive and filtering capacities of carbonate and sulfate compounds which could reduce the bacteria transport and contamination of aquifers.

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APA: Copy

ROSTAMI, K., MAHBOUBI, ALI AKBAR, MOSADEGHI, M.R., & SAFARI SANJANI, A.A.. (2006). LIME AND GYPSUM EFFECTS ON PSEUDOMONAS FLUORESCENS TRANSPORT THROUGH SAND COLUMNS IN SATURATED CONDITION. AGRICULTURAL RESEARCH, 6(3), 61-73. SID. https://sid.ir/paper/84815/en

Vancouver: Copy

ROSTAMI K., MAHBOUBI ALI AKBAR, MOSADEGHI M.R., SAFARI SANJANI A.A.. LIME AND GYPSUM EFFECTS ON PSEUDOMONAS FLUORESCENS TRANSPORT THROUGH SAND COLUMNS IN SATURATED CONDITION. AGRICULTURAL RESEARCH[Internet]. 2006;6(3):61-73. Available from: https://sid.ir/paper/84815/en

IEEE: Copy

K. ROSTAMI, ALI AKBAR MAHBOUBI, M.R. MOSADEGHI, and A.A. SAFARI SANJANI, “LIME AND GYPSUM EFFECTS ON PSEUDOMONAS FLUORESCENS TRANSPORT THROUGH SAND COLUMNS IN SATURATED CONDITION,” AGRICULTURAL RESEARCH, vol. 6, no. 3, pp. 61–73, 2006, [Online]. Available: https://sid.ir/paper/84815/en

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