【摘要】 将4株高效苯酚分解菌湿菌体分3批投加于序批式反应器(SBR),对活性污泥进行生物强化试验,分析活性污泥状态与性能变化,测定生物强化后对苯酚的降解能力。结果表明,随着生物强化过程的进行,沉降性能改善,污泥颗粒化趋势明显;生物强化后,活性污泥对苯酚降解能力、降解速率及对苯酚的耐受性明显提高:苯酚质量浓度为730～960mg/L时,苯酚完全降解时间可由正常的6h缩短至2h;6h内可完全降解苯酚的质量浓度由原来的880mg/L提高到2080mg/L,处理能力提高了1.36倍;当进水苯酚质量浓度增加到2400mg/L时,6h内污泥对苯酚的降解率仍达到60.1%。更多还原

【Abstract】 The effectiveness of bioaugmentation in aerobic treatment was evaluated in a sequencing batch reactor(SBR)which was augmented three times with four efficient phenol degrading bacterial strains.The changes in sludge morphological performance and the phenol degradation capability have shown that the bioaugmentation resulted in a more effective sludge with a higher sludge density,better settling property,more readily to form sludge granules.The bioaugmented sludge increased both the capacity and the rate of phenol removal.The time for complete phenol removal was shortened from 6 h to 2 h at a feed phenol concentration of 730-960 mg/L;the maximum concentration that phenol was removed in 6 h was increased from 880 mg/L to 2 080 mg/L;the phenol-degrading capability was increased 1.36 times.Bioaugumentation extended the influent phenol concentration that was well treated in the SBR;60.1% phenol was removed from the feed in 6 h at an influent phenol concentration up to 2 400 mg/L.更多还原