臭氧-生物活性炭纤维处理微污染原水的研究

Treatment of slightly polluted water by using the technique of ozone-biological activated carbon fiber

采用循环流动法把微生物固定在活性炭纤维(BACF)上,并将原水用臭氧预氧化,然后用生物活性炭纤维柱处理,检测了臭氧-生物活性炭纤维去除微污染原水中有机物的性能。实验结果表明,在臭氧投加量为3g/h,臭氧反应塔接触时间为20min、炭床接触时间为30min时,O3-BACF对UV254、浊度、CODMn的去除率分别为90%、95%、60%,表明O3-BACF技术对UV254和浊度有良好的处理效果,并且显著地提高了CODMn的去除效果,同时O3和BACF的协同作用使生物活性炭纤维柱出水水质稳定,处理量大。作为一种新型的深度水处理技术,O3-BACF技术将具有广阔的应用前景。

Ozone-biological activated carbon fiber（O3-BACF）,as a new technique of water treatment,has been investigated for the removal of organic matter from water.Microbes are incubated on ACF by means of flow circulation to form BACF.Slighted polluted water is oxidized by O3,then treated by the resultant BACF bed to remove the organic matter.When the ozone dosage is 3 g/h,the contact time of ozone tower is 20 min,and the contact time of carbon bed is 30 min,the removal rates of UV254,turbidity,CODMn are 90%,95%,60% respec-tively.The results show that O3-BACF has very good treatment efficience on UV254 and turbidity,and the removal rate of CODMn has been improved greatly.The coordination of O3-BACF makes water quality of the effluent of biological activated carbon fiber stable and have larger treatment quantity.As a new type of advanced water treatment technique,O3-BACF will have wide applied prospect.