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  

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

作　　者：周栋[1] 陈振楼[1] 毕春娟[1] 王骏[1] 林守民[1] 祁莹莹[1] 

机构地区：[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

出　　处：《华东师范大学学报（自然科学版）》2011年第1期185-193,共9页Journal of East China Normal University(Natural Science)

基　　金：国家科技重大专项(2009ZX07317-006);国家自然科学基金(40971259);上海市优秀学科带头人计划(10XD1401600)

摘　　要：以7d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.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.

关 键 词：沸石 麦饭石 氮磷 去除效率 

分 类 号：X131.2[环境科学与工程—环境科学]