COMBINING A SEQUENCING BATCH REACTOR WITH IRON FILING FILTRATION FOR THE TREATMENT OF DYEING WASTEWATER

摘要

An innovative combination using a sequencing batchreactor(SBR)with iron filing filtration was developed for thetreatment of dyeing wastewater. Iron filing filtration served as apretreatment process to improve the biodegradability of wastewater.Thus the potential of a sequencing batch reactor can be betterexerted to decompose toxic substances more efficiently. Theexperimental results demonstrated that 85/100 COD and over 90/100BOD_5 and color can be removed when the influent COD ranged from 1000mg/L to 1500 mg/L, BOD_5 from 200 mg/L to 400 mg/L and color from 200to 800 times.