【摘要】 将驯化后具备高效降解三苯类物质能力的活性污泥作为种泥,在特定的载体上发酵扩大培养,制成复合微生物菌剂.菌剂中的有效活菌数>109CFU/g,含水量<5%,可替代活性污泥直接投加,具有同驯化的活性污泥相当的降解性能.分别考察了pH值、烘干温度和载体比例对菌剂降解性能的影响,获得了菌剂制备的最佳工艺条件:pH值9.0,烘干温度35℃,麦麸:纤维素:稳定剂比例为85%:10%:5%.该菌剂具有较好的稳定性,可在4℃稳定保存3个月,仍保持对三苯类物质较高的去除效率,相对活性污泥更适合保存.更多还原

【Abstract】 The activated sludge with high efficiency for the removal of benzene, toluene, and o-xylene(BTX) wa inoculated on a specific carrier and enriched via a fermentation process.The composite microorganism agent applied fo BTX degradation was then successfully prepared.In the microorganism agent, the active organisms was more than 10 CFU/g, and water content was less than 5%.The microorganism agent, instead of the acclimated activated sludge, coul be employed for the start-up of the reactor to purify BTX without substantial loss of removal capacity.The effect o several operating parameters, including pH, drying temperature and the carrier proportion, on the performance o microorganism agent was investigated in detail.With an initial pH of 9.0, drying temperature of 35℃, and the carrie proportion of 85%:10%:5%, the best microorganism agent were obtained.Compared with the activated sludge, th microorganism agent had higher stability when it was stored for three months or more at 4℃.更多还原