| 从亚硝酸还原厌氧氨氧化转变为硫酸盐型厌氧氨氧化 |
| 摘要点击 2266 全文点击 1253 投稿时间：2015-02-02 修订日期：2015-04-06 |
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| 中文关键词 生物脱氮 亚硝酸盐型厌氧氨氧化 硫酸盐型厌氧氨氧化 UASB 群落结构 |
| 英文关键词 biological nitrogen removal nitrite reducing anaerobic ammonium oxidation sulfate-reducing anaerobic ammonium oxidation UASB community structure |
| 作者 | 单位 | E-mail | | 刘正川 | 西安建筑科技大学环境与市政工程学院, 陕西省环境工程重点实验室, 西北水资源与环境生态教育部重点实验室, 西安 710055 | zhengchuanliu@163.com | | 袁林江 | 西安建筑科技大学环境与市政工程学院, 陕西省环境工程重点实验室, 西北水资源与环境生态教育部重点实验室, 西安 710055 | yuanlinjiang@xauat.edu.cn | | 周国标 | 西安建筑科技大学环境与市政工程学院, 陕西省环境工程重点实验室, 西北水资源与环境生态教育部重点实验室, 西安 710055 | | | 李晶 | 西安建筑科技大学环境与市政工程学院, 陕西省环境工程重点实验室, 西北水资源与环境生态教育部重点实验室, 西安 710055 | |
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| 中文摘要 |
| 在UASB反应器内,研究了由亚硝酸盐型厌氧氨氧化转变为硫酸盐型厌氧氨氧化的过程及其微生物群落变化. 结果表明,历时177 d成功实现了硫酸盐型厌氧氨氧化. 进水氨氮和硫酸盐浓度分别为130 mg ·L-1和500 mg ·L-1下,反应器对氨氮和硫酸盐的去除率分别达到58.9%和15.7%,对氨氮和硫酸盐的去除负荷为74.3 mg ·(L ·d)-1和77.5 mg ·(L ·d)-1,氮、硫损失摩尔比约为2,出水pH值低于进水. 污泥中细菌从以球菌为主转变成以短杆菌为主,菌群中细菌由Candidatus brocadia为优势种转变为以Bacillus benzoevorans为优势种. 说明完成这两种厌氧氨氧化的优势菌不同,两种厌氧氨氧化并非同一种菌参与完成的. |
| 英文摘要 |
| The transformation of nitrite-reducing anaerobic ammonium oxidation to sulfate-reducing anaerobic ammonium oxidation in an UASB was performed and the changes in microbial community were studied. The result showed that the sulfate reducing anaerobic ammonium oxidation process was successfully accomplished after 177 days' operation. The removal rate of ammonium nitrogen and sulfate were up to 58.9% and 15.7%, the removing load of ammonium nitrogen and sulfate were 74.3 mg ·(L ·d)-1 and 77.5 mg ·(L ·d)-1 while concentration of ammonium nitrogen and sulfate of influent were 130 mg ·L-1 and 500 mg ·L-1, respectively. The lost nitrogen and sulphur was around 2 in molar ratio. The pH value of the effluent was lower than that of the influent. Instead of Candidatus brocadia in nitrite reducing anaerobic ammonium oxidation granular sludge, Bacillus benzoevorans became the dominant species in sulfate reducing anaerobic ammonium oxidation sludge. The dominant bacterium in the two kinds of anaerobic ammonium oxidation process is different. Our results imply that the two anaerobic ammonium oxidation processes are carried out by different kind of bacterium. |
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