ROLE OF IRAN PSEUDACORUS PLANT IN REMOVAL OF BACTERIA IN SUBSURFACE CONSTRUCTED WETLAND

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YOUSEFI Z.; MESDAGHINIA A.; SHOKRI M.; NASERI S.; VAEZI F.; GHIAS ALDIN M.; MOHSENI BANDPEY M.A.

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Journal: Journal of Mazandaran University of Medical Sciences Year:2001 | Volume:11 | Issue:31 Page(s): 7-15

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Title

ROLE OF IRAN PSEUDACORUS PLANT IN REMOVAL OF BACTERIA IN SUBSURFACE CONSTRUCTED WETLAND

Author(s)

Keywords

SUBSURFACE CONSTRUCTED WETLANDQ4

GRAVEL MEDIAQ4

IRAN PSEUDACORUS PLANT (YELLOW FLAG IRUS)Q4

COLIFORMQ4

Abstract

Background and Purpose: Removal of bacteria by macrophytes in wetland system had been reported by many researchers. This study was designed and performed to determine the efficiency of sub-surface constructed wetland in removal of COLIFORM bacteria from sewage.Materials and Methods: We have used 4 plastic reactors in Bench-Scale in two series. In each serie and to the three reactors were added 1, 2 and 3 plants respectively and the fourth reactor was kept as control (without plant). GRAVEL MEDIA was used in both series of reactors with the effective size of 5mm and porosity coefficient of 2.2 and 33 percent respectively.Concentration of COLIFORM to act as MPN/100 ml in influent sewage was 2000-9200000 (4.3-7.96 Log). Detention time applied in the reactors was 1-10 days. Flow pattern of reactors was intermittent. Sewage samples were injected to the reactors on certain time interval, Samples were collected from the reactors and the standard method number of COLIFORM was counted.Results: COLIFORM removal efficiency was obtained 91.7%, 92.5%, 95.8%, 99.7% in first reactor series and 99.29%, 99.97%, 99.99%, 99.999% in second reactor series with 0,1,2,3 plant respectively. There was no significant relationship between the reactors in first seri (P>0.05), but was significant in second series (P<0.05). The results showed optimum detention time for removal of COLIFORMs in constructed wetland in 5-6 days.Conclusion: This study indicates Subsurface-constructed wetland with GRAVEL MEDIA and Iris-pseudacorus plant in 5-6 days detention times has the efficiency to remove COLIFORM of influent sewage.

Cites

FEELING THE WETLANDS IN SOUTHERN COAST OF CASPIAN SEA (IRAN)

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APA: Copy

YOUSEFI, Z., MESDAGHINIA, A., SHOKRI, M., NASERI, S., VAEZI, F., GHIAS ALDIN, M., & MOHSENI BANDPEY, M.A.. (2001). ROLE OF IRAN PSEUDACORUS PLANT IN REMOVAL OF BACTERIA IN SUBSURFACE CONSTRUCTED WETLAND. JOURNAL OF MAZANDARAN UNIVERSITY OF MEDICAL SCIENCES, 11(31), 7-15. SID. https://sid.ir/paper/46095/en

Vancouver: Copy

YOUSEFI Z., MESDAGHINIA A., SHOKRI M., NASERI S., VAEZI F., GHIAS ALDIN M., MOHSENI BANDPEY M.A.. ROLE OF IRAN PSEUDACORUS PLANT IN REMOVAL OF BACTERIA IN SUBSURFACE CONSTRUCTED WETLAND. JOURNAL OF MAZANDARAN UNIVERSITY OF MEDICAL SCIENCES[Internet]. 2001;11(31):7-15. Available from: https://sid.ir/paper/46095/en

IEEE: Copy

Z. YOUSEFI, A. MESDAGHINIA, M. SHOKRI, S. NASERI, F. VAEZI, M. GHIAS ALDIN, and M.A. MOHSENI BANDPEY, “ROLE OF IRAN PSEUDACORUS PLANT IN REMOVAL OF BACTERIA IN SUBSURFACE CONSTRUCTED WETLAND,” JOURNAL OF MAZANDARAN UNIVERSITY OF MEDICAL SCIENCES, vol. 11, no. 31, pp. 7–15, 2001, [Online]. Available: https://sid.ir/paper/46095/en

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