摘要
COD和DO浓度对好氧颗粒污泥的同步硝化反硝化反应有明显影响 .COD浓度在 4 0 0~ 12 0 0mg/L范围内 ,好氧颗粒污泥去除COD的能力均在 85 %以上 .颗粒污泥能吸附有机物 ,使废水中COD浓度快速下降 .COD浓度小于 80 0mg/L ,好氧颗粒污泥具有良好的脱氮能力 ,氮去除率最高达 85 .3% .在溶氧浓度为 1~ 4mg/L条件下 ,颗粒污泥对COD去除率均在 90 %以上 .不同的溶氧浓度对氮的去除率有一定影响 ,在溶氧浓度 3mg/L时 ,氮去除率最高 ,达83% .图 7参
Both COD and DO had important effect on the removal of nitrogen. While COD concentration was at the range of 400~1 200 mg/L, COD was deleted by aerobic granular sludge with high removal rate over 85%. Granular sludge had fine absorption ability for organic matter. Most of nitrogen was removed by granular sludge when COD concentration was below 800 mg/L, with the maximum removal rate of 85.3%. Over 90% COD was removed at different DO concentrations. DO concentration obviously affected the deletion of nitrogen. While being 3 mg/L of DO in broth, about 83% of nitrogen was removed. Fig 7, Ref 7
出处
《应用与环境生物学报》
CAS
CSCD
2004年第3期366-369,共4页
Chinese Journal of Applied and Environmental Biology
关键词
硝化
反硝化
溶解氧
颗粒污泥
COD
nitrification
denitrification
dissolved oxygen
granular sludge
COD