Fecal coliform removal from the effl uent of UASB reactor through diffused aeration

Abid Ali Khan; Rubia Zahid Gaur; Vinay Kumar Tyagia; Beni Lew; Vasileios Diamantisc; Absar Ahmad Kazmia; Indu Mehrotra

doi:https://doi.org/10.5004/dwt.2012.2532

Fecal coliform removal from the effl uent of UASB reactor through diffused aeration

Abid Ali Khan, Rubia Zahid Gaur, Vinay Kumar Tyagia, Beni Lew, Vasileios Diamantisc, Absar Ahmad Kazmia, Indu Mehrotra

Research output: Contribution to journal › Article › peer-review

Abstract

Although UASB systems treating municipal wastewater generally remove fecal coliform (FC)by ~ one order of magnitude, the effl uent still contains concentrations higher than the WHOstandard for unrestricted irrigation. In this study, the effect of continuous diffused aerationon the removal of FC was examined. The diffused aeration system was operated at differenthydraulic retention times (60, 30 and 15 min) and dissolved oxygen (DO) concentrations (5-6and 1-2 mg/l). The removal of FC was affected by the applied HRT and DO. Optimum resultswere obtained at HRT and DO equal to 60 min and 5-6 mg/l respectively, with FC removal ofapproximately 2 log (97%). The mechanisms responsible for FC die-off were the pH and oxidationreduction potential (ORP) of the medium.

Original language	English
Pages (from-to)	41-44
Number of pages	4
Journal	Desalination and Water Treatment
Volume	39
Issue number	1-3
DOIs	https://doi.org/10.5004/dwt.2012.2532
State	Published - Feb 2012
Externally published	Yes

Keywords

Diffused aeration
Dissolved oxygen
Fecal coliform removal
Municipal wastewater
ORP
UASB

All Science Journal Classification (ASJC) codes

Water Science and Technology
Ocean Engineering
Pollution

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https://doi.org/10.5004/dwt.2012.2532

Cite this

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title = "Fecal coliform removal from the effl uent of UASB reactor through diffused aeration",

abstract = "Although UASB systems treating municipal wastewater generally remove fecal coliform (FC)by ~ one order of magnitude, the effl uent still contains concentrations higher than the WHOstandard for unrestricted irrigation. In this study, the effect of continuous diffused aerationon the removal of FC was examined. The diffused aeration system was operated at differenthydraulic retention times (60, 30 and 15 min) and dissolved oxygen (DO) concentrations (5-6and 1-2 mg/l). The removal of FC was affected by the applied HRT and DO. Optimum resultswere obtained at HRT and DO equal to 60 min and 5-6 mg/l respectively, with FC removal ofapproximately 2 log (97%). The mechanisms responsible for FC die-off were the pH and oxidationreduction potential (ORP) of the medium.",

keywords = "Diffused aeration, Dissolved oxygen, Fecal coliform removal, Municipal wastewater, ORP, UASB",

author = "Khan, {Abid Ali} and Gaur, {Rubia Zahid} and Tyagia, {Vinay Kumar} and Beni Lew and Vasileios Diamantisc and Kazmia, {Absar Ahmad} and Indu Mehrotra",

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doi = "https://doi.org/10.5004/dwt.2012.2532",

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T1 - Fecal coliform removal from the effl uent of UASB reactor through diffused aeration

AU - Khan, Abid Ali

AU - Gaur, Rubia Zahid

AU - Tyagia, Vinay Kumar

AU - Lew, Beni

AU - Diamantisc, Vasileios

AU - Kazmia, Absar Ahmad

AU - Mehrotra, Indu

PY - 2012/2

Y1 - 2012/2

N2 - Although UASB systems treating municipal wastewater generally remove fecal coliform (FC)by ~ one order of magnitude, the effl uent still contains concentrations higher than the WHOstandard for unrestricted irrigation. In this study, the effect of continuous diffused aerationon the removal of FC was examined. The diffused aeration system was operated at differenthydraulic retention times (60, 30 and 15 min) and dissolved oxygen (DO) concentrations (5-6and 1-2 mg/l). The removal of FC was affected by the applied HRT and DO. Optimum resultswere obtained at HRT and DO equal to 60 min and 5-6 mg/l respectively, with FC removal ofapproximately 2 log (97%). The mechanisms responsible for FC die-off were the pH and oxidationreduction potential (ORP) of the medium.

AB - Although UASB systems treating municipal wastewater generally remove fecal coliform (FC)by ~ one order of magnitude, the effl uent still contains concentrations higher than the WHOstandard for unrestricted irrigation. In this study, the effect of continuous diffused aerationon the removal of FC was examined. The diffused aeration system was operated at differenthydraulic retention times (60, 30 and 15 min) and dissolved oxygen (DO) concentrations (5-6and 1-2 mg/l). The removal of FC was affected by the applied HRT and DO. Optimum resultswere obtained at HRT and DO equal to 60 min and 5-6 mg/l respectively, with FC removal ofapproximately 2 log (97%). The mechanisms responsible for FC die-off were the pH and oxidationreduction potential (ORP) of the medium.

KW - Diffused aeration

KW - Dissolved oxygen

KW - Fecal coliform removal

KW - Municipal wastewater

KW - ORP

KW - UASB

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U2 - https://doi.org/10.5004/dwt.2012.2532

DO - https://doi.org/10.5004/dwt.2012.2532

M3 - مقالة

SN - 1944-3994

VL - 39

SP - 41

EP - 44

JO - Desalination and Water Treatment

JF - Desalination and Water Treatment

IS - 1-3

ER -

Fecal coliform removal from the effl uent of UASB reactor through diffused aeration

Abstract

Keywords

All Science Journal Classification (ASJC) codes

Access to Document

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