上海大学学报（英文版）
上海大學學報（英文版）
상해대학학보（영문판）
JOURNAL OF SHANGHAI UNIVERSITY (ENGLISH EDITION)
2006年
2期
179-184
,共6页
bi-external recycling biological fluidized bed(BRBFB)%sequential batch operation%wastewater bio-treatment
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.
