Biological decolourization of simulated textile wastewater in UASB reactor system by anaerobic granular sludge.
作者： W. Somasiri , Ruan WenQuan , Jian Chen , Li XiuFen
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摘要: th Accepted 5 August 2005 ABSTRACT The textile wastewater, containing three acid dyes belonging to different chemical groups; Acid Blue 204 (AB204), Red 131 (AR131) and Yellow 79 (AY79), was studied in UASB (Upflow Anaerobic Sludge Blanket) reactor system from 10 mg/l 300 dye concentrations with COD (Chemical Oxygen Demand) of 2000 as co-substrate. hydraulic retention time (HRT) 24 h maintained. decolourization achieved the range 73±13.4% 95%. At level, 89% attained. study suggested that due combination processes adsorption biodegradation. UV-Visible spectrum influents effluents showed significant changes confirming degradation dyes. decolouriszed by into microbial granules while other were biodegraded. removal efficiency over 85% during all indicating no severe toxicity caused microorganisms mixture. VFA (volatile Fatty Acids) alkalinity well below 61 1733 mg/l, respectively, operated properly. If proper adaptation maintenance are practiced, wastewater could be via anaerobic
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