| 冯绍元,郑艳侠,唐泽军,刘培斌.人工快速渗滤系统对地表微污染水净化效果的试验研究[J].水利学报,2007,38(4):422-426 |
| 人工快速渗滤系统对地表微污染水净化效果的试验研究 |
| Experimental study on purification of slightly polluted surface water by constructed rapid infiltration system |
| |
| DOI： |
| 中文关键词: 人工快速渗滤系统 渗透速率 水温 地表微污染水 |
| 英文关键词: constructed rapid infiltration (CRI) system infiltration rate water temperature slightly polluted surface water |
| 基金项目: |
|
| 摘要点击次数: 1788 |
| 全文下载次数: 158 |
| 中文摘要: |
| 为确定人工快速渗滤系统净化微污染地表水的主要影响因素，在三家店水库下游的京永引水渠旁建立了人工快速渗滤系统，开展了不同季节三家店水库微污染水净化效果的试验研究。结果表明，夏季高温季节，CODMn和NH+4N的平均去除率分别为45％和65％，去除率随着渗透速率的提高而降低，但是变化不明显；随着水温的降低，CODMn的去除率开始下降。在低温季节，CODMn的去除率明显随着渗透速率的提高而显著降低，而NH+4N受温度和渗透速率的影响不明显，但其平均去除率仍可达到60％。试验结果表明：人工快速渗滤系统对微污染地表水中CODMn和NH+4N有较好的净化效果，且该系统在冬季低温条件下仍可以正常运行，但为保证净化效果，需要适当减小渗透速率。 |
| 英文摘要: |
| The experiment on purification of slightly polluted surface water by constructed rapid infiltration (CRI) system under different water temperatures and filtration rates were conducted to study the main factors affecting the effectiveness of the system. The slightly polluted water was obtained from Sanjiadian Reservoir, Beijing, and the CRI system was located at the downstream of the reservoir. The experimental result showed that the average removal rates of CODMn and NH+4N were 45% and 65% respectively, in summer. The removal rate of CODMndid not decrease significantly with increase of infiltration rate, but it decreased with the decrease of water temperature obviously. In winter, the removal rates of CODMndecreased evidently with the increase of infiltration rate, the average removal rate of NH+4N could attain 60% and the removal of NH+4N was not obviously affected by the infiltration rate and temperature. It may conclude that the CRI system is effective in purification of slightly polluted water and operates normally even at low temperature in winter. However, in order to assure the purification effect the infiltration rate must be properly reduced. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |