| 异养硝化菌提高好氧颗粒污泥脱氮效率的试验研究 |
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| 引用本文： | 王瑛,梁麟,李慧莉,杨亚红.异养硝化菌提高好氧颗粒污泥脱氮效率的试验研究[J].甘肃科学学报,2011,23(2):34-37. |
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| 作者姓名： | 王瑛 梁麟 李慧莉 杨亚红 |
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| 作者单位： | 兰州理工大学土木工程学院,甘肃兰州,730050 |
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| 基金项目： | 甘肃省自然科学基金资助项目 |
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| 摘 要： | 通过人工配置污水,研究兼性细菌较多的活性污泥.首先在进水NH4-N浓度为200mg/L,COD浓度为1000 mg/L,溶解氧10.0 mg/L条件下筛选培养出好氧异养菌占优的脱氮性能较强的活性污泥.然后通过控制SBR反应器曝气量(溶解氧先后为2 mg/L、6 mg/L、2 mg/L),创造利于某些好氧异养硝化菌生长的...
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| 关 键 词： | 异养硝化菌 好氧颗粒污泥 沉降时间 |
Experimenfal Study for Improving the Denitrification Efficiency of Aerobic Granular Sludge by Heterotrophic Nitrobacterium |
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| WANG Ying,LIANG Lin,LI Hui-li,YANG Ya-hong.Experimenfal Study for Improving the Denitrification Efficiency of Aerobic Granular Sludge by Heterotrophic Nitrobacterium[J].Journal of Gansu Sciences,2011,23(2):34-37. |
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| Authors: | WANG Ying LIANG Lin LI Hui-li YANG Ya-hong |
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| Institution: | (School of Civil Engineering,Lanzhou University of Science and Technology,Lanzhou 730050,China) |
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| Abstract: | The active sludge is studied with more facultative bacteria by artificial sewage.At first,the activated sludge with high nitrogen removal performance is cultivated,where the aerobic heterotrophic bacteria is dominant.The wltivating conditions are:COD loading rate is 1 000 mg/L,NH4—N loading rate is 200 mg/L and dissolved oxygen is 10 mg/L.Then,by controlling the aeration rate of SBR reactors(dissolved oxygen is 2 mg/L、6 mg/L、2 mg/L),we create the environment which is beneficial for aerobic heterotrophic nitro-bacteria,and then confirm their advantageous position.During this period,the sludge settling time is reduced to 5 min,so as to cultivate the aerobic granular sludge,whose main ingredient is heterotrophic nitrification.Finally,the removal efficiencies of COD,NH4—N,TN,TP is 95%,98%,80%,98%,respectively. |
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| Keywords: | heterotrophic nitrobacterium aerobic granular sludge settling time |
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