مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Verion
Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

video

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

sound

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Version

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View:

649
Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Download:

0
Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Cites:

Information Journal Paper

Title

THE IMPACT OF CHEMICAL AND THERMAL REFINING ON ADSORPTION CAPACITY OF IRANIAN NATURAL DIATOMITE

Pages

  8-15

Abstract

 Background and Objective: One of the factors that affects the rate of ADSORPTION and removal of pollutants is the level of substrate surface. Today, the use of active carbon substrates and synthetic zeolites such as Y and ZSM-5 are considered to have great efficiency due to their high surface area. In this study, DIATOMITE modification was carried out using chemical and thermal processes to increase the substrate surface and the amount of ADSORPTION capacity.Materials and Methods: After washing with distilled water, the crude sample of DIATOMITE was purified with 1 M solution of HYDROCHLORIC ACID in two 6-hour stages at the temperature of 70oC, and finally, it was calcinated at the temperature of 750oC for 4 hours. Eventually, we studied its characteristics such as SPECIFIC SURFACE area, pore distribution, sorption-desorption isotherms, and its ADSORPTION capacity through passing toluene pollutant through it.Results: Acid refinication increased SPECIFIC SURFACE area by 2.2 times compared to a sample only washed with deionized water. Furthermore, the rate of SiO2 reached 88.16%. Through calcinating the sample, the SPECIFIC SURFACE decreased by 16.4% and crystalline structure increased. The results of X-ray fluorescence (XRF) and X-ray diffraction (XRD) indicated that the major components of DIATOMITE included cristobalite, quartz, and feldspar, respectively. In addition, the ADSORPTION capacities at break point and saturation after modification elevated by 131% and 97%, respectively.Conclusion: Our results indicated that although with the modification of DIATOMITE using acid and calcination at the temperature of 750oC surface area and ADSORPTION capacity increased, this increase was not remarkable compared to the existing substrates such as active carbon and synthetic zeolite types; thus, it requires further studies.

Cites

  • No record.

    • References

    Cite

    APA: Copy

    SHOJAEE FARAH ABADY, HOSEIN, ASSILIAN MAHABADY, HASAN, KHAVANIN, ALI, & ABBASZADEH, MAHDI. (2018). THE IMPACT OF CHEMICAL AND THERMAL REFINING ON ADSORPTION CAPACITY OF IRANIAN NATURAL DIATOMITE. JOURNAL OF OCCUPATIONAL HYGIENE ENGINEERING, 5(1 ), 8-15. SID. https://sid.ir/paper/253410/en

    Vancouver: Copy

    SHOJAEE FARAH ABADY HOSEIN, ASSILIAN MAHABADY HASAN, KHAVANIN ALI, ABBASZADEH MAHDI. THE IMPACT OF CHEMICAL AND THERMAL REFINING ON ADSORPTION CAPACITY OF IRANIAN NATURAL DIATOMITE. JOURNAL OF OCCUPATIONAL HYGIENE ENGINEERING[Internet]. 2018;5(1 ):8-15. Available from: https://sid.ir/paper/253410/en

    IEEE: Copy

    HOSEIN SHOJAEE FARAH ABADY, HASAN ASSILIAN MAHABADY, ALI KHAVANIN, and MAHDI ABBASZADEH, “THE IMPACT OF CHEMICAL AND THERMAL REFINING ON ADSORPTION CAPACITY OF IRANIAN NATURAL DIATOMITE,” JOURNAL OF OCCUPATIONAL HYGIENE ENGINEERING, vol. 5, no. 1 , pp. 8–15, 2018, [Online]. Available: https://sid.ir/paper/253410/en

    Related Journal Papers

    Related Seminar Papers

  • No record.

    • Related Plans

  • No record.

    • Recommended Workshops






    Move to top