摘要
以中置式高密度沉淀池沉后水作为进水,考察了臭氧-生物活性炭(O3-BAC)饮用水深度处理工艺的挂膜过程,并探讨了生物活性炭挂膜的影响因素。结果表明,挂膜期间O3-BAC工艺对水中浊度、CODMn及氨氮具有较好的去除效果,运行后期浊度、CODMn及氨氮的去除率分别达到50%,62.71%和62.5%以上;运行至82天时,CODMn和氨氮去除率分别大于30%和60%,生物膜趋于成熟。
The course of biofilm formation of O3-BAC process for advanced drinking water treatment was investigated by adopting settled water of intermediate high density sedimentation tank as influent water, and the influencing factors of BAC biofilm formation were discussed. The results showed that biofilm formation of O3-BAC process had satisfied removal effect of turbidity, CODMn and ammonia nitrogen. The removal rates of turbidity, CODMn and ammonia nitrogen could reach above 50%, 62.71% and 62.5% respectively at later period of operation, the removal rates of CODMn and ammonia nitrogen were more than 30% and 60% respectively during the 82 days experiment. It demonstrated that the biofilm could tend to be mature.
出处
《供水技术》
2012年第1期10-12,共3页
Water Technology
关键词
饮用水
臭氧
生物活性炭
挂膜
吸附
drinking water
ozone
biological activated carbon
biofilm formation
adsorption
