PERFORMANCE OF A HYBRID BUBBLE COLUMN/BIOFILTER BIOREACTOR FOR REMOVAL OF DICHLOROMETHANE FROM WASTE GAS STREAMS

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

ABTAHI M.; NADDAFI K.; MESDAGHINIA A.; YAGHMAEIAN K.; NABIZADEH R.; JAAFARZADEH N.; RASTKARI N.; SAEEDI R.; NAZMARA S.

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

Journal Paper

Paper Information

Journal: Iranian Journal of Health and Environment Year:2015 | Volume:7 | Issue:4 Page(s): 455-467

Download Full-Text

Persian Verion

View:

794

Download:

Cites:

Information Journal Paper

Title

PERFORMANCE OF A HYBRID BUBBLE COLUMN/BIOFILTER BIOREACTOR FOR REMOVAL OF DICHLOROMETHANE FROM WASTE GAS STREAMS

Author(s)

Keywords

DICHLOROMETHANEQ2

WASTE GAS STREAMQ2

HYBRID BIOREACTORQ2

EMPTY BED RETENTION TIMEQ2

KINETICQ2

Abstract

Background and objectives: DICHLOROMETHANE (DCM) is one of the hazardous contaminants of the environment, especially ambient air that threatens human health at both acute and chronic exposures. In this study, the performance of a pilot-scale hybrid bubble column/biofilter (HBCB) bioreactor was studied for the removal of DCM from WASTE GAS STREAMs at steady state.Materials and methods: The experiments were conducted in four stages with relatively constant concentrations of DCM (approximately 240 ppm) and variable empty bed residence time (EBRT) of 50, 100, 150 and 200 s. In addition to determining DCM removal rate and efficiency, quality parameters of mixed liquor of the bubble column bioreactor were studied and KINETIC of bio filtration was analyzed.Results: The average DCM removal efficiency of the HBCB bioreactor at EBRT of 200 and 150 s were 79 and 71% respectively. However, further reduction of EBRT resulted in significantly decreased DCM removal efficiency, so that at EBRT of 50 s, the DCM removal efficiency decreased to 32%. In addition, the EBRT reduction from 200 s to 50 s through increasing DCM loading rate resulted in increasing DCM removal rate from 12.1 to 19.6 g/m3.h. The results of KINETIC analysis showed that the KINETIC data of bio filtration were in the best fitness with the first order rate equation (R2>0.99 and e%<2.2) and the DCM removal rate constant was determined 0.0114 s-1. The mixed liquor characterization indicated that the daily adjustment of pH and EC was sufficient to prevent any limitation in the performance of the HBCB bioreactor.Conclusion: This study indicated that the DCM removal rate and efficiency of the HBCB bioreactor were relatively high and the HBCB bioreactor had reliable performance during the variable operational conditions.

Cites

No record.

References

No record.

Cite

APA: Copy

ABTAHI, M., NADDAFI, K., MESDAGHINIA, A., YAGHMAEIAN, K., NABIZADEH, R., JAAFARZADEH, N., RASTKARI, N., SAEEDI, R., & NAZMARA, S.. (2015). PERFORMANCE OF A HYBRID BUBBLE COLUMN/BIOFILTER BIOREACTOR FOR REMOVAL OF DICHLOROMETHANE FROM WASTE GAS STREAMS. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, 7(4), 455-467. SID. https://sid.ir/paper/145863/en

Vancouver: Copy

ABTAHI M., NADDAFI K., MESDAGHINIA A., YAGHMAEIAN K., NABIZADEH R., JAAFARZADEH N., RASTKARI N., SAEEDI R., NAZMARA S.. PERFORMANCE OF A HYBRID BUBBLE COLUMN/BIOFILTER BIOREACTOR FOR REMOVAL OF DICHLOROMETHANE FROM WASTE GAS STREAMS. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT[Internet]. 2015;7(4):455-467. Available from: https://sid.ir/paper/145863/en

IEEE: Copy

M. ABTAHI, K. NADDAFI, A. MESDAGHINIA, K. YAGHMAEIAN, R. NABIZADEH, N. JAAFARZADEH, N. RASTKARI, R. SAEEDI, and S. NAZMARA, “PERFORMANCE OF A HYBRID BUBBLE COLUMN/BIOFILTER BIOREACTOR FOR REMOVAL OF DICHLOROMETHANE FROM WASTE GAS STREAMS,” IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, vol. 7, no. 4, pp. 455–467, 2015, [Online]. Available: https://sid.ir/paper/145863/en

Related Journal Papers