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Treatment of beet sugar wastewater by UAFB bioprocess
, Article Bioresource Technology ; Volume 98, Issue 16 , 2007 , Pages 3080-3083 ; 09608524 (ISSN) ; Borghei, M ; Umrania, V. V ; Sharif University of Technology
2007
Abstract
The aim of this work was to study the treatment of strong beet sugar wastewater by an upflow anaerobic fixed bed (UAFB) at pilot plant scale. Three fixed bed bioreactors (each 60 L) were filled with standard industrial packing, inoculated with anaerobic culture (chicken manure, cow manure, anaerobic sludge digested from domestic wastewater) and operated at 32-34 °C with 20 h hydraulic retention time (HRT) and influent COD ranging between 2000-8000 mg/L. Under these conditions the maximum efficiency of organic content reduction in the reactor ranged from 75% to 93%. The reactor filled with standard pall rings made of polypropylene with an effective surface area of 206 m2/m3 performed best in...