Title of article
UPGRADING AN EXISTING WASTEWATER TREATMENT PLANT BASED ON AN UPFLOW ANAEROBIC PACKED-BED REACTOR
Author/Authors
Mahvi, A. H. tehran university of medical sciences tums - School of Public Health and Center for Environmental Research - Department of Environmental Health Engineering, تهران, ايران , Mesdaghinia, A. R. tehran university of medical sciences tums - School of Public Health and Center for Environmental Research - Department of Environmental Health Engineering, تهران, ايران , Saeedi, R. tehran university of medical sciences tums - School of Public Health - Department of Environmental Health Engineering, تهران, ايران
From page
229
To page
234
Abstract
The performance of an upflow anaerobic packed-bed reactor in the upgrading of Parkandabad (Mashhad, north east of Iran) wastewater treatment plant was studied in a pilot plant. The experiments were performed at hydraulic retention times of 6, 12, 18 and 24h based on empty reactor volume and the performance of the reactor was evaluated based on the removal of organic matter (BOD5 and COD) and SS. The average BOD5 and COD removal efficiencies were in the ranges of 79.0-89.3% and 75.7-87.2%, respectively, depending on HRT. The relationship between the organic loading rate and organic removal rate was linear in the loading range of 0.52-2.10kg BOD5/m3.d. The average SS removal efficiencies at hydraulic retention times of 6, 12, 18 and 24h were obtained to be 82.9, 83.6, 81.2 and 87.4%, respectively. The results indicated that the reactor in combination with existing biological treatment process (completely mixed aerated lagoon) can produce a high quality effluent.
Keywords
Wastewater treatment , Upgrading , Upflow anaerobic packed , bed reactor
Journal title
Iranian Journal of Environmental Health Science and Engineering (IJEHSE)
Journal title
Iranian Journal of Environmental Health Science and Engineering (IJEHSE)
Record number
2586651
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