新建组合填料潜流湿地脱氮除磷研究

被引:6
作者
谭洪新 [1 ]
刘艳红 [1 ]
周琪 [2 ]
杨殿海 [2 ]
机构
[1] 上海水产大学生命科学与技术学院
[2] 同济大学环境科学与工程学院
关键词
页岩; 钢渣; 潜流湿地; 脱氮除磷;
D O I
暂无
中图分类号
X703 [废水的处理与利用];
学科分类号
摘要
以城市污水ANOXIC-OXIC工艺出水为处理对象,在中试规模上研究了新建组合填料潜流湿地的脱氮除磷效能。结果表明,当COD面积负荷率、TN面积负荷率、TP面积负荷率、HRT(水力停留时间)分别为8.7~22.1g/(m2·d)、7.29~24.28g/(m2·d)、0.94~1.84g/(m2·d)、0.48~0.59d时,①湿地启动阶段,COD去除率为30.3%、面积负荷去除率为6.63g/(m2·d)、反应动力学常数为0.23m/d;SS去除率为45.5%;氨态氮、亚硝态氮和硝态氮的去除率分别为9.3%、40.0%和25.0%;TN去除率为14.9%、面积负荷去除率3.63g/(m2·d)、反应动力学常数为0.10m/d;TP去除率为92.4%、面积负荷去除率为0.93g/(m2·d),反应动力学常数为0.94m/d。②稳态运行阶段,COD去除率为33.9%,面积负荷去除率为2.98g/(m2·d),反应动力学常数为0.24m/d;SS去除率为50.0%;氨氮、亚硝氮和硝氮的去除率分别为50.2%、41.9%和24.7%;TN去除率为29.9%,面积负荷去除率为2.19g/(m2·d),反应动力学常数为0.18m/d。TP去除率为90.5%、面积负荷去除率为0.89g/(m2·d)、反应动力学常数为0.86m/d。③随TN面积负荷增加,TN面积负荷去除率和TN动力学常数均随之线性增加;随TP面积负荷增加,TP面积负荷去除率随之线性增加,而反应动力学常数呈幂函数增加。
引用
收藏
页码:73 / 78
页数:6
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