曝气生物滤池中不同填料处理大生活用海水的研究

Research of the Treatment of Domestic Water Using Different Filter Materials in Biological Aerated Filter

分别以沸石、球型陶粒、无烟煤和活性炭作为曝气生物滤池的载体填料处理大生活用海水,对COD cr,NH3-N,总磷及浊度的去除效果进行了比较研究。研究表明,在单级生物滤池系统连续运行下,球型陶粒和活性炭的挂膜速度较快。4种生物活性填料柱在填料吸附和微生物降解的共同作用下,对大生活用海水中COD cr,NH3-N,总磷和浊度均有一定的去除效果,其中活性炭生物填料的处理效果最佳,沸石填料的处理效果最差。

The zeolite, spherical ceramsite, anthracite and activated carbon was used as filter medium of biological aerated filter to deal with seawater for domestic use. The removal efficiency about COD,, ammonia nitrogen, total phosphorous and turbidity were also studied. Comparing the performance of biofilm growth about single stage biological filter, results show that spherical ceramsite and activated carbon are better than others. Under the common function of packing adsorption and biodegradation, four different biofilm carriers can purify domestic water all. The removal rates about CODcr, ammonia nitrogen, total phosphorous and turbidity show that activated carbon was the best filler and zeolite was the worst filler about the treatment of saline wastewater using BAF.