凹土复合滤料在三相生物流化床中的应用研究  

Study on the application of complex attapulgite filter media to the three-phase fluidized bed reactor

作　　者：彭喜花[1] 陈静[1] 

机构地区：[1]淮阴工学院生命科学与化学工程学院,江苏省凹土资源利用重点试验室,江苏淮安223003

出　　处：《工业水处理》2012年第4期52-54,58,共4页Industrial Water Treatment

基　　金：淮阴工学院青年教师科研项目(2917279)

摘　　要：利用凹土、粉煤灰、玻璃粉和漂珠为材料制得复合型凹土悬浮滤料,并作为填料运用于内循环三相生物流化床处理有机废水,同时考察曝气量和水力停留时间对COD和氨氮去除率的影响。结果表明,当曝气量为0.25m3/h时,COD和氨氮的去除率分别高达92.35%和95.13%;水力停留时间为2.0 h时,COD和氨氮的去除率分别高达91.5%和93.2%;所制得复合型凹土悬浮滤料性能良好。Attapulgite, fly ash, glass suspended filter media and as filling powder and floating beads have been used for making complex attapulgite material for treating organic wastewater in internal circulating three-phase biological fluidized bed reactors. At the same time, the effect of aeration amount and hydraulic retention time on the removing rates of COD and ammonia-nitrogen are investigated. The results show that the removing rates of COD and ammonia-nitrogen are 92.35% and 95.13% respectively,when aeration amount is 0.25 m3/h;and the removing rates of COD and ammonia-nitrogen are 91.5% and 93.2% respectively,when hydraulic retention time is 2.0 h. The property of complex attapulgite suspended filter media is pretty good.

关 键 词：凹土 生物滤料 三相生物流化床 废水处理 

分 类 号：X703.5[环境科学与工程—环境工程]