粉煤灰陶粒滤料的制备及在生物滤池中的应用研究

金属矿山 ›› 2008, Vol. 38 ›› Issue (11): 114-117.

粉煤灰陶粒滤料的制备及在生物滤池中的应用研究

王萍，李国昌

山东理工大学

收稿日期:2008-09-27 出版日期:2008-11-15 发布日期:2011-07-12

Research on Preparing of Coal-Ash Ceramsite and Its Application in Biological Aerated Filter

Wang Ping，Li Guochang

Shandong University of Technology

Received:2008-09-27 Online:2008-11-15 Published:2011-07-12

摘要/Abstract

摘要： 利用粉煤灰作为主要原料，制备生物滤池陶粒滤料。将该滤料作为生物反应器的生物膜载体，处理城市生活污水。反应器运行期间，COD、氨氮的平均去除率为85.47%、66.95%。在停留时间1.25 h、气水比4.0的条件下，COD去除率最高，为95.02%；停留时间1.5 h，气水比2.0，废水pH值在8～9，氨氮的去除率均为最高，为79.02%。反冲洗12 h后，COD和氨氮的去除率恢复正常。

关键词: 粉煤灰, 滤料, 生物反应器, COD, 氨氮

Abstract: Coal ash was used as the main material to produce the ceramsite filter medium of biological aerated filter. It was used as bio-film carrier of biological reactor to treat municipal domestic sewage. During the reactor operation, the average removal rate of COD and nitride ammonium were 85.31% and 66.95% respectively. At a HRT of 1.25h and an air/water ratio of 4.0, the removal rate of COD was the highest, reaching 95.02%; and at a HRT of 1.5h, an air/water ratio of 2.0 and a pH of 8~9, the removal rate of nitride ammonium was the highest, reaching 79.02%. After 12 h backwashing, the removal rates of both COD and nitride ammonium returned to normal.

Key words: Coal-ash, Filter medium, Biological reactor, COD, Nitride ammonium

王萍, 李国昌. 粉煤灰陶粒滤料的制备及在生物滤池中的应用研究[J]. 金属矿山, 2008, 38(11): 114-117.

WANG Ping, LI Guo-Chang. Research on Preparing of Coal-Ash Ceramsite and Its Application in Biological Aerated Filter[J]. Metal Mine, 2008, 38(11): 114-117.

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