摘要
试验装置为2个完全相同的SBR反应柱,通过在SBR1中添加硝酸钕改性好氧颗粒污泥,研究稀土钕对好氧颗粒污泥的形成和特性的影响。结果表明,添加硝酸钕的SBR1在45 d培养出颗粒污泥,改性后的好氧颗粒污泥平均粒径为2.5 mm,含水率为93.7%～96.9%,污泥平均比重为1.061 2,SVI为48 mL/g,完整系数为86%～95%,钕改性好氧颗粒污泥的污染物去除效果良好,COD、氨氮去除率均为90%以上,且实现了同步硝化反硝化。
The experiment equipment were two same SBR reactor column,by adding modified aerobic granular sludge by nitric acid neodymium in SBR1 to investigate the effect of Neodymium ion on formation and characteristics of improved aerobic granular sludge（AGS）.The results showed that improved AGS were obtained successfully in SBR1 after 45days＇ cultivation which had average particle size of 2.5 mm,moisture content of 93.7%～ 96.9%,average proportion of 1.061 2,48 mL/g as SVI and Complete coefficient from 86% to 95%.The improved AGS have excellent ability to remove COD and Ammonia,which could reach higher than 90%.Simultaneous nitrification and denitrification（SND） was found in the SBR1 system.
出处
《水处理技术》
CAS
CSCD
北大核心
2012年第5期44-47,共4页
Technology of Water Treatment
基金
国家科技支撑计划资助项目(2006BAJ05A12)
关键词
钕
改性好氧颗粒污泥
同步硝化反硝化
neodymium
improved aerobic granular sludge
simultaneous nitrification and denitrification（SND）
