欢迎访问《环境科学学报》编辑部网站！

快速检索			高级检索

研究论文

摘要：在厌气-好气-活性碳三级串联工艺系统中,用7株高效染料脱色降解菌在厌气池中接种,在好气池中用聚乙烯醇(PVA)降解菌富集培养液接种挂膜处理含PVA和BOD₅/COD_cr<0.2的印染废水,经日处理17t废水的中试表明,当进水COD_cr、BOD₅、PVA、洗涤剂和色度含量分别为680ppm,110ppm,134ppm,2.94ppm和65倍时,在厌气池,好气池和活性碳池中的水力负荷分别为3.17,3.0,14t/(

Abstract：The treatment of printing and dyeing wastewater contained polyvinyl alcohol (PVA) with BOD₅/COD_Cr<0.2 by mixed bacterial culture was studied. The mixed culture of seven strains of dye-decolor bacteria was inoculated in an anaerobic bioreactor, and consortium degrading PVA enrichment mixed culture in an aerobic bioreactor in biotreated system involving an anaerobic-aerobic and activated carbon filter. The results of the treatment of 17 tons of wastewater per day for ten months illustrated that the total removal of COD_Cr, BOD₅, PVA, detergents and color were 91.5%, 95.3%, 89.7%, 97.6%, and 80% respectively, at the hydraulic loading(t/(m³·d)) of 3.17, 3.0, 14 in anaerobic, aerobic and activated carbon bioreactors. The average amounts (mg/L.) of COD_Cr, BOD₅, PVA, detergents and color (times) were 45.8, 9.22, 10.7, 0.07, and 10.2 respectively in the final effluent. The removal of pollutants in various bioreactors were compared.