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作 者:吴鲜梅[1] 王敦球[1] 李亮[1] 张文杰[1]
机构地区:[1]桂林理工大学环境科学与工程学院,广西桂林541004
出 处:《水处理技术》2013年第2期57-61,共5页Technology of Water Treatment
基 金:国家自然科学基金项目(51108108;41161075);广西科学研究与技术开发计划(桂科合1298014-14;桂科攻1140002-1);广西环境工程与保护评价重点实验室研究基金(桂科能0901Z021);桂林理工大学科研启动费项目
摘 要:通过厌氧膨胀颗粒污泥床(EGSB)反应器接种低温(4℃左右)下存放18个月的厌氧氨氧化污泥,处理模拟废水,研究如何用长时间低温保存后的厌氧氨氧化污泥启动反应器。在温度(34±1)℃、进水pH为7.40~7.64、DO的质量浓度控制在0.10 mg/L以下成功启动反应器。运行110 d后,进水TN负荷最高可达2.3 kg/(m.3d),NH4+-N、NO2--N去除率分别为90.93%、99.76%,出水pH明显高于进水,平均达到7.99;第135天在反应器中发现有红色厌氧颗粒污泥形成;经扫描电子显微镜观察,第165天厌氧颗粒污泥布满球状菌。Anaerobic ammonium oxidation sludge which had been deposited eighteen months and kept at around 4 ℃was inoculated into an EGSB reactor, and processed simulation wastewater, it was studied how to start-up EGSB reactor by ANAMMOX sludge which had been stored at low temperature after long time. Anaerobic ammonium oxidation sludge was cultivated with temperature of (34± 1) ℃, pH of 7.40-7.64, DO below 0.10 mg/L. After 110 d, TN removal load capacity reached the highest value 2.3 kg/(m3·d), the removal rate of NH4+-N and NO&N can reach 90.93% and 99.76%, respectively. The effluent pH was obviously higher than influent, the mean value reached 7.99. The red anaerobic granular sludge was found in reactor at day 135 and globular bacteria increased significantly in day 165 compared to the initial through the observation of scanning electron microscope (SEM).
关 键 词:厌氧氨氧化污泥 厌氧膨胀颗粒污泥床(EGSB) 脱氮
分 类 号:X703.1[环境科学与工程—环境工程]
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