[1]钱梦洁,李兴强,李军.丝瓜络和聚氨酯组合填料深度脱氮效果[J].中国给水排水,2020,36(15):73-77.
　QIAN Meng-jie,LI Xing-qiang,LI Jun.Advanced Denitrification Efficiency of Loofah and Polyurethane Composite Filler[J].China Water & Wastewater,2020,36(15):73-77.
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丝瓜络和聚氨酯组合填料深度脱氮效果

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第36卷 期数: 2020年第15期 页码: 73-77 栏目: 出版日期: 2020-08-01
Title:
Advanced Denitrification Efficiency of Loofah and Polyurethane Composite Filler
作者:
钱梦洁，李兴强，李军
(浙江工业大学环境学院，浙江杭州310014)
Author(s):
QIAN Meng-jie，LI Xing-qiang，LI Jun
(College of Environment, Zhejiang University of Technology, Hangzhou 310014, China)
关键词:
丝瓜络; 聚氨酯; 深度脱氮; 污水处理厂尾水
Keywords:
loofah; polyurethane; advanced denitrification; tail water from wastewater treatment plant
摘要:
针对污水厂尾水总氮较高、可生化性差、现行工艺无法使其达到地表水Ⅳ类水质标准的问题，利用丝瓜络缓释碳源的特性，探究了分别以丝瓜络、丝瓜络和聚氨酯组合、聚氨酯为填料的联合模块的深度脱氮效果。先行采用城镇污水处理厂活性污泥对填料进行浸没装填，再以C/N值较低的人工配水为原水分阶段连续运行。在联合模块实验过程中,NO-3-N在未外加碳源的情况下，可以从10 mg/L下降至1.5 mg/L，去除率达到80%，NH3-N和NO-2-N含量几乎为0，实现了深度脱氮，且不存在碳源外泄的情况。
Abstract:
Tail water from wastewater treatment plant has the problems of high total nitrogen, poor biodegradability, hard to meet surface water Ⅳ class standard after treated by the current technology. Based on characteristic of slow-release carbon source of loofah, modules of loofah, loofahpolyurethane and polyurethane as fillers were used for advanced denitrification. The fillers were firstly immersed and filled in activated sludge of municipal wastewater treatment plant, and then they were continuously applied to treat low C/N ratio simulated wastewater during different phases. During the experiment, NO-3-N could be reduced from 10 mg/L to 1.5 mg/L without additional carbon source in the combined module, and the removal rate reached 80%. The contents of NH3-N and NO-2-N were close to zero, indicating that advanced denitrification without carbon source leakage was realized.
更新日期/Last Update: 2020-08-01