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| 固定化包埋颗粒对二级出水深度脱氮特性研究 | |
| 引用本文： | 王静萱,李军,张振家,赵白航,刘伟岩.固定化包埋颗粒对二级出水深度脱氮特性研究[J].环境科学学报,2013,33(2):389-394. |
| 作者姓名： | 王静萱 李军 张振家 赵白航 刘伟岩 |
| 作者单位： | 1. 北京工业大学建筑工程学院,北京市水质科学与水环境恢复工程重点实验室,北京100124 2. 上海交通大学环境科学与工程学院,上海,200240 3. 北京工业大学建筑工程学院,北京市水质科学与水环境恢复工程重点实验室,北京100124;北京城市排水集团有限责任公司,北京100022 |
| 基金项目： | 国家自然科学基金资助项目(No.51078008);北京市自然科学基金(No.8122005);北京市教委重点基金(No.KZ201110005008) |
| 摘 要： | 采用包埋固定化颗粒对北京市某污水处理厂的二沉池出水进行深度脱氮处理,研究了驯化启动及稳定运行的条件和脱氮特性,对比了不同水力停留时间(HRT)、不同进水TN负荷的脱氮效能.结果表明,在水温为25℃、pH =7.2、水力停留时间为70 min、包埋颗粒填充率为30％时,投加碳源驯化一周后包埋固定化颗粒即能保持稳定高效的脱氮率,并具有良好的耐冲击负荷能力；进水TN负荷从0.5 kg·m-3· d-1逐渐提高至2.0 kg·m-3·d-1时,TN平均去除率达到86.6％.进水TN负荷为2.5 kg·m-3·d-1时,TN平均去除率仍能达到70％；在HRT为20 min时,出水硝氮＜1 mg·L-1,TN ＜5 mg·L-1；填充率由30％逐渐降低到20％时,TN去除率均能达到80％以上；填充率低于20％时,TN去除率随着填充率的减少而下降.试验确定包埋固定化菌的最佳填充率为20％. |
| 关 键 词： | 包埋固定化颗粒 驯化 水力停留时间 填充率 |
| 收稿时间： | 2012/4/23 0:00:00 |
| 修稿时间： | 2012/7/23 0:00:00 |
Nitrogen removal of the secondary effluent by embedded immobilized bacteria in moving-bed |
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| WANG Jingxuan,LI Jun,ZHANG Zhenji,ZHAO Baihang and LIU Weiyan.Nitrogen removal of the secondary effluent by embedded immobilized bacteria in moving-bed[J].Acta Scientiae Circumstantiae,2013,33(2):389-394. | |
| Authors: | WANG Jingxuan LI Jun ZHANG Zhenji ZHAO Baihang and LIU Weiyan |
| Institution: | Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, the College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124;Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, the College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124;School of Environmental Science & Engineering, Shanghai Jiaotong University, Shanghai 200240;Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, the College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124;1. Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, the College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124;2. Beijing Drainage Group Co., Ltd., Beijing 100022 |
| Abstract: | |
| Keywords: | embedded immobilized bacteria domestication HRT filling rate |
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