生物活性炭循环床工艺处理微污染水源水

摘要

为探讨季节性微污染水体中污染物的生物-化学协同去除新技术,以安徽淮南段淮河水源水为研究对象,建立中试反应器,研究以颗粒活性炭作为吸附填料及微生物载体的循环床工艺对微污染水源水中有机物、氨氮和浊度的处理效果.研究结果表明,工艺对有机物和氨氮有较好的处理效果,生物活性炭循环床对高锰酸盐指数、UV254和氨氮的去除率分别稳定在15％、20％和50％以上,但是对浊度基本上没有去除效果.反应器载体挂膜成功后,水力负荷的冲击不会对生物活性岩循环床的运行造成显著影响.%In order to develop a novel chemical-biological technology for the treatment of seasonal polluted raw water, a pilot biolog ical activated carbon circulating fluidized bed (BACCFB) reactor,in which the activated carbon served as an adsorbing material as well as biological media,was designed and constructed for the treatment of raw water from Huaihe river in Huainan, Anhui Province. The treatment efficiency of organics, ammonia nitrogen and turbidity in BACCFB were investigated. The results show that the BACCFB process has a promising performance for the removal of organic matter and ammonia nitrogen,but is not effective at the removal of tur bidity. It is observed that the removal efficiency of permanganate index,UV254 and ammonia nitrogen are over 15% ,20% and 50% re spectively. The treatment performance of BACCFB is not affected by the shock influent hydraulic loading, when the biofilm is established on the activated carbon media.