Combined treatment of dyeing wastewater by a new sequential bi-cycling biological fluidized bed  

新型生物流化床处理印染废水的序批式组合工艺研究(英文)

作　　者：徐功娣 

机构地区：[1]Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, P.R. China, Institute of Chemical Engineering, Qiqihar University, Qiqihar 161006, P.R. China

出　　处：《Journal of Shanghai University(English Edition)》2006年第2期179-184,共6页上海大学学报（英文版）

基　　金：ProjectpartlysupportedbyNationalNaturalScienceFoundationofChina(GrantNo.10472063)

摘　　要：A new wastewater treatment equipment, the bi-external recycling biological fluidized bed (BRBFB), which is an effective equipment, was investigated. Anaerobic digestion, aerobic aeration and settlement processes with a fixed sequential procedure were compacted into this reactor. By five different treatment courses, the optimization of the combined operation procedure in the system was determined to be a 12-hour cycle including an inflow process, a 4 h anaerobic digestion process, a 4 h aerobic aeration process, a 2 h settlement process and a 2 h recess process including effluent discharge process. By utilizing BRBFB to treat a synthetic dyeing wastewater, 90% of COD_ Cr is removed for a higher-concentration water (COD_ Cr 1 000-1 200 mg/L), and 82% of COD_ Cr is removed for a lower-concentration water (COD_ Cr 400-600 mg/L). Near 100% color is removal and discharging standards for industry wastewater are achieved.A new wastewater treatment equipment, the bi-external recycling biological fluidized bed （BRBFB）, which is an effective equipment, was investigated. Anaerobic digestion, aerobic aeration and settlement processes with a fixed sequential procedure were compacted into this reactor. By five different treatment courses, the optimization of the combined operation procedure in the system was determined to be a 12-hour cycle including an inflow process, a 4 h anaerobic digestion process, a 4 h aerobic aeration process, a 2 h settlement process and a 2 h recess process including effluent discharge process. By utilizing BRBFB to treat a synthetic dyeing wastewater, 90% of CODcr is removed for a higher-concentration water （CODcr 1 000 - 1 200 mg/L）, and 82% of CODcr is removed for a lower-concentration water （CODcr 400- 600 mg/L）. Near 100% color is removal and discharging standards for industry wastewater are achieved.

关 键 词：bi-extemal recycling biological fluidized bed（BRBFB） sequential batch operation wastewater bio-treatment. 

分 类 号：X791[环境科学与工程—环境工程]