MECHANISTIC EVALUATION OF THE SORPTION PROPERTIES OF ENDOCRINE DISRUPTING CHEMICALS IN SEWAGE SLUDGE BIOMASS

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IFELEBUEGU A.O.; THEOPHILUS S.C.; BATEMAN M.J.

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Journal Paper

Paper Information

Journal: INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST) Year:2010 | Volume:7 | Issue:4 (28) Page(s): 617-622

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Title

MECHANISTIC EVALUATION OF THE SORPTION PROPERTIES OF ENDOCRINE DISRUPTING CHEMICALS IN SEWAGE SLUDGE BIOMASS

Author(s)

IFELEBUEGU A.O. | THEOPHILUS S.C. | BATEMAN M.J. | Issue Writer Certificate

Keywords

ENTHALPY

ENTROPY

PARTITIONING COEFFICIENT

SLUDGE

SORPTION

Abstract

This study investigated the SORPTION behaviour of two endocrine disrupting chemicals; 17 b-estradiol (E2) and 17b-ethinylestradiol and their thermodynamic properties in an activated SLUDGE biomass. The partition coefficient values measured for E2 and EE2 at varying temperatures range from 245- 604 L/kg (log Kd 2.39-2.78) and 267-631 L/kg (Log Kd 2.43-2.80), respectively. The Kd values were inversely related to temperature. The average percentages of E2 and EE2 adsorbed to the solid phase at 4.3 % dry solid were 87.2 % and 92.5 %, respectively. SORPTION of E2 and EE2 to the activated SLUDGE biomass was found to be spontaneous and ENTROPY retarded with DG values in the range of -13 to -16 KJ/mol and ΔS value of -105.2J/mol/K and 96.7 J/mol/k for E2 and EE2, respectively. The ENTHALPY changes for E2 and EE2 were - 45.7KJ/mol and - 43.4KJ/mol respectively, demonstrating that the SORPTION process is exothermic. The values of the ENTHALPY changes also show that the mechanism of SORPTION is physisorption with some element of chemisorption.

Cites

THE FATE AND BEHAVIOR OF SELECTED ENDOCRINE DISRUPTING CHEMICALS IN FULL SCALE WASTEWATER AND SLUDGE TREATMENT UNIT PROCESSES

References

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APA: Copy

IFELEBUEGU, A.O., THEOPHILUS, S.C., & BATEMAN, M.J.. (2010). MECHANISTIC EVALUATION OF THE SORPTION PROPERTIES OF ENDOCRINE DISRUPTING CHEMICALS IN SEWAGE SLUDGE BIOMASS. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), 7(4 (28)), 617-622. SID. https://sid.ir/paper/285277/en

Vancouver: Copy

IFELEBUEGU A.O., THEOPHILUS S.C., BATEMAN M.J.. MECHANISTIC EVALUATION OF THE SORPTION PROPERTIES OF ENDOCRINE DISRUPTING CHEMICALS IN SEWAGE SLUDGE BIOMASS. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST)[Internet]. 2010;7(4 (28)):617-622. Available from: https://sid.ir/paper/285277/en

IEEE: Copy

A.O. IFELEBUEGU, S.C. THEOPHILUS, and M.J. BATEMAN, “MECHANISTIC EVALUATION OF THE SORPTION PROPERTIES OF ENDOCRINE DISRUPTING CHEMICALS IN SEWAGE SLUDGE BIOMASS,” INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), vol. 7, no. 4 (28), pp. 617–622, 2010, [Online]. Available: https://sid.ir/paper/285277/en

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