华东师范大学学报(自然科学版) ›› 2011, Vol. 2011 ›› Issue (1): 185-193.

• 水体污染控制与治理 专刊 • 上一篇    下一篇

沸石和麦饭石组合滤料对城市降雨径流氮磷去除效率的研究

周 栋， 陈振楼， 毕春娟， 王 骏， 林守民， 祁莹莹   

  1. 华东师范大学 资源与环境科学学院 地理信息科学教育部重点实验室，上海 200062
  • 收稿日期:2010-10-01 修回日期:2010-12-01 出版日期:2011-01-25 发布日期:2011-01-25
  • 通讯作者: 陈振楼

Efficiencies of different zeolite and medical stone combinations removaling the nitrogen and phosphorus in urban rainfall runoff

ZHOU Dong, CHEN Zhen-lou, BI Chun-juan, WANG Jun, LIN Shou-min,QI Ying-ying   

  1. Key Laboratory of Geographic Information Science of the Ministry of Education, School of Resources and Environment Science, East China Normal University, Shanghai 200062, China
  • Received:2010-10-01 Revised:2010-12-01 Online:2011-01-25 Published:2011-01-25
  • Contact: CHEN Zhen-lou

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摘要： 以7 d为1个周期，分别研究了沸石与麦饭石以3种不同体积比例（5 ∶5，7 ∶3，3 ∶7）组成的填充柱在2个周期的时间里对人工配制的模拟城市降雨径流中氮、磷的去除效率.结果表明，3 ∶7配比的填充柱前后两个阶段对总氮的去除效率分别为78.61%和85.28%，而对磷的去除效率分别可以达到96.73%和94.59%；5 ∶5配比的填充柱前后两个阶段脱氮除磷效率分别为83.18%，80.24%，97.02%和86.16%；7 ∶3配比的脱氮除磷效率分别为92.39%，80.01%，51.79%和57.28%.在兼顾整个填充柱脱氮除磷效率、再生能力以及再生速度等因素的情况下，3 ∶7配比为最优选择.

关键词: 沸石, 麦饭石, 氮磷, 去除效率, 沸石, 麦饭石, 氮磷, 去除效率

Abstract: One kind of packed columns, which were filled up with three different volume ratios of zeolite and medical stone (5 ∶5, 7 ∶3, 3 ∶7; V ∶V), were used to investigate the efficiency of zeolite and medical stone to removal the nitrogen and phosphorus in synthetic urban rainfall runoff during a 7 days period. The experiments were token twice, and the results showed that 3 ∶7 ratio of packed column could removal 78.61% and 85.28% nitrogen in the first and second phase experiment respectively, and the phosphorus removal rates reached 96.73% and 94.59%; the removal efficiency of nitrogen and phosphorus of 5 ∶5 ratio packed column were 83.18% and 97.02% in the first phase, and 80.24% and 86.16% in the second phase; while in 7 ∶3 ratio packed column, about 92.39% and 80.01% nitrogen and 51.79% and 57.28% phosphorus was removed respectively. It was concluded that in considering the whole removal efficiency and regeneration capability of zeolite and medical stone, the combination of 3 ∶7 ratio was the best choice.

Key words: medical stone, nitrogen and phosphorus, removal efficiency, zeolite, medical stone, nitrogen and phosphorus, removal efficiency

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