固定化微生物法处理活性染料印染废水的研究

Study on Dye Printing Wastewater Treated by Immobilized Microorganism Method

[目的]研究固定化微生物法处理活性染料印染废水。[方法]通过驯化采集的好氧活性污泥,培养优势菌种并固定化,处理模拟印染废水。[结果]固定化微生物法比普通微生物法对废水COD的去除率高7%,褪色率高10%左右。在温度为25℃,p H为6-8,水力停留时间为12 h,进水浓度为200 mg/L时,模拟废水COD的去除率可以达到86%,褪色率可达到97%。[结论]固定化微生物法比普通微生物法更加稳定,对废水的处理效果更好。

[Objective] The research aimed to study the immobilized microorganism method treating dye printing wastewater. [Method] By domesticating the collected aerobic activated sludge,dominant strain was cultivated and immobilized to treat the simulated dye printing wastewater. [Result] COD removal rate of wastewater by the immobilized microorganism method was 7% higher than that by general microbial method,and fading rate was 10% higher. Under the conditions of 25 ℃ temperature,p H 6- 8,12 h of HRT and 200 mg / L of influent concentration,COD removal rate of the simulated wastewater could reach 86%,and fading rate was 97%. [Conclusion]The immobilized microorganism method was more stable than general microbial method,and its treating effect on wastewater was better.