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UASB/Flash aeration enable complete treatment of municipal wastewater for reuse
Year:
2012
Authors :
Lew, Beni
;
.
Volume :
35
Co-Authors:
  • Abid Ali Khan
  • Rubia Zahid Gaur
  • Vasileios Diamantis
  • Indu Mehrotra 
  • A. A. Kazmi 
Facilitators :
From page:
907
To page:
913
(
Total pages:
7
)
Abstract:

A simple, efficient and cost-effective method for municipal wastewater treatment is examined in this paper. The municipal wastewater is treated using an upflow anaerobic sludge bed (UASB) reactor followed by flash aeration (FA) as the post-treatment, without implementing aerobic biological processes. The UASB reactor was operated without recycle, at hydraulic retention time (HRT) of 8 h and achieved consistent removal of BOD, COD and TSS of 60–70% for more than 12 months. The effect of FA on UASB effluent post-treatment was studied at different HRT (15, 30 and 60 min) and dissolved oxygen (DO) concentrations (low DO = 1–2 mg/L and high DO = 5–6 mg/L). The optimum conditions for BOD, COD and sulfide removal were 30–60 min HRT and high DO concentration inside the FA tank. The final effluent after clarification was characterized by BOD and COD values of 28–35 and 50–58 mg/L, respectively. Sulfides were removed by more than 80%, but the fecal coliform only by ~2 log. The UASB followed by FA is a simple and efficient process for municipal wastewater treatment, except for fecal coliform, enabling water and nutrients recycling to agriculture.

Note:
Related Files :
Diffused aeration
fecal coliform
Municipal wastewaters
Nutrients recovery
Sustainable treatment
UASB post treatment
wastewater treatment
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Related Content
More details
DOI :
https://doi.org/10.1007/s00449-011-0675-z
Article number:
0
Affiliations:
Database:
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
55892
Last updated date:
02/03/2022 17:27
Creation date:
15/08/2021 12:10
Scientific Publication
UASB/Flash aeration enable complete treatment of municipal wastewater for reuse
35
  • Abid Ali Khan
  • Rubia Zahid Gaur
  • Vasileios Diamantis
  • Indu Mehrotra 
  • A. A. Kazmi 
UASB/Flash aeration enable complete treatment of municipal wastewater for reuse

A simple, efficient and cost-effective method for municipal wastewater treatment is examined in this paper. The municipal wastewater is treated using an upflow anaerobic sludge bed (UASB) reactor followed by flash aeration (FA) as the post-treatment, without implementing aerobic biological processes. The UASB reactor was operated without recycle, at hydraulic retention time (HRT) of 8 h and achieved consistent removal of BOD, COD and TSS of 60–70% for more than 12 months. The effect of FA on UASB effluent post-treatment was studied at different HRT (15, 30 and 60 min) and dissolved oxygen (DO) concentrations (low DO = 1–2 mg/L and high DO = 5–6 mg/L). The optimum conditions for BOD, COD and sulfide removal were 30–60 min HRT and high DO concentration inside the FA tank. The final effluent after clarification was characterized by BOD and COD values of 28–35 and 50–58 mg/L, respectively. Sulfides were removed by more than 80%, but the fecal coliform only by ~2 log. The UASB followed by FA is a simple and efficient process for municipal wastewater treatment, except for fecal coliform, enabling water and nutrients recycling to agriculture.

Scientific Publication
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