生态碳纤维复合填料生物反应器处理印染废水

采用一种生态碳纤维复合材料作为填料，应用于水解酸化-生物接触氧化-活性炭生物反应器处理印染废水，考察了反应器水力停留时间、曝气量对有机物降解的影响。结果表明：水解酸化水力停留时间、接触氧化水力停留时间和气水比的最优值分别为10 h、12 h和28∶1。在最佳参数下运行，COD、氨氮、色度的去除率分别达到85.8%、86.1%、80.6%，出水水质达到纺织染整工业水污染物排放二级标准。镜检表明生态碳纤维复合填料表面生物相长势良好，具有较好的生物相容性。

Treatment of wastewater from printing and dyeing industries with a bioreactor using an ecological carbon fiber material as the bio-media

An ecological carbon fiber was used as the bio-media in a hydrolysis-acidification- biology-contact oxidation-activated carbon bioreactor to treat to wastewater from printing and dyeing industries. The influences of hydraulic retention time (HRT) and aeration rate on the removal of COD were studied and the microscopic examination was performed. The results showed that the optimal HRT for hydrolysis-acidification and contact-oxidation processes were 10h and 12h respectively, and the optimal gas water ratio was 28∶1 under both conditions. The removal efficiencies of COD, ammonia and color were 85.8%, 86.1%, and 80.6% respectively under the optimal conditions. Effluent water quality met Grade II discharge standards of water pollutants from printing and textile industries. The microscopic examination showed that the microorganism on the bio-media had a preferable growth and high biocompatibility.