| 改进型CRI系统总氮去除效果试验研究 |
| |
| 引用本文： | 范兴建,付永胜,刘方,薛丹,许文来.改进型CRI系统总氮去除效果试验研究[J].水处理技术,2009,35(10). |
| |
| 作者姓名： | 范兴建 付永胜 刘方 薛丹 许文来 |
| |
| 作者单位： | 范兴建(西南交通大学环境科学与工程学院,四川,成都,610031;江苏华东地质建设集团有限公司,江苏,南京,210007);付永胜,薛丹,许文来(西南交通大学环境科学与工程学院,四川,成都,610031);刘方(四川省环保科技工程有限责任公司,四川,成都,610041) |
| |
| 基金项目： | 四川省科技攻关计划课题项目 |
| |
| 摘 要： | 以改进型CRI系统为研究装置,以校园生活污水为研究对象,分别采取增加分段进水口以及溢流池的方式,探讨系统TN去除效果.结果表明,分段进水口设在反硝化段较适宜,既能促进反硝化反应的进行,又能进一步有效降解COD,90cm分段进水口的设置优于70cm分段进水口的设置;分段进水体积比为2:1时的TN去除效果优于进水比为1:1时的去除效果,TN去除率可以达到64.8%,出水达到城镇污水处理厂污染物排放标准(GB18918-2002)一级A标准;溢流池的高度对于系统出水TN浓度影响较小,在考虑系统经济性条件下,30cm高的溢流池已能满足要求.
|
| 关 键 词： | 改进型CRI系统 总氮 分段进水口 进水比 溢流池 |
TOTAL NITROGEN REMOVAL EFFICIENCY OF IMPROVED CONSTRUCTED RAPID INFILTRATION SYSTEM |
| |
| Abstract: | Taking improved constructed rapid infiltration system as experimental device, schoolyard domestic sewage as object, the methods of adding subsection intake and overflow pool was used to study the total nitrogen removal efficiency of improved constructed rapid infiltration. The results showed that the subsection intake setting on the denitrification segment is suitable. On the one hand, it can promote the rate of denitrification reaction; on the other hand, COD can be effectively degraded. The total nitrogen removal efficiency of 2:1 is better than 1:1, it can reach 64.8 percent, and the outflow can meet national discharge standard. The height of overflow pool has little influence on total nitrogen removal efficiency. When economy is considered, the over-flow pool's height of 30 cm can meet the requirement. |
| |
| Keywords: | improved constructed rapid infiltration system total nitrogen subsection intake intake ratio overflow pool |
| 本文献已被 万方数据 等数据库收录！ |
|
