Abstract: The salt-tolerant microorganism Aspergillus sp. HJ isolated in laboratory has been used for the removal of Reactive Black 5(RB5) under non-sterile condition. The influence of the co-pollutants,including NaCl,Na₂SO₄,sodium dodecyl sulfate and Cr(Ⅵ),in dying & printing wastewater on Aspergillus sp. HJ mycelia pellets for the removal of RB5 have been investigated,and the mycelium pellet bubbling fluidized bed reactor established. The experimental results show that all the co-pollutants can decrease RB5 removing rates by mycelia pellets and second-order decolorization kinetic rate constants to varying degrees. The results of a 15-day continuous operation of mycelium pellet bubbling fluidized bed reactor show that the RB5 removing rate keeps at above 80% stably. The RB5 removing mechanism by mycelium pellets are biosorption and bioenrichment.

Key words: RB5, mycelia pellet, co-pollutant, biological adsorption

摘要： 实验室分离出耐盐微生物Aspergillus sp.HJ，在非灭菌条件下探究了印染废水中的共存污染物氯化钠、硫酸钠、十二烷基硫酸钠和Cr（Ⅵ）对Aspergillus sp.HJ菌丝球去除活性黑5（RB5）染料的影响，并建立了菌丝球鼓泡流化床反应器。实验结果表明：共存污染物均会不同程度地降低菌丝球对RB5的去除率和二级脱色动力学速率常数。连续15 d的菌丝球鼓泡流化床反应器运行结果表明，RB5去除率稳定在80%以上。菌丝球去除RB5的机理是生物吸附和生物富集。

关键词: 活性黑5, 菌丝球, 共存污染物, 生物吸附

CLC Number: 

• X703