| 人工湿地废水处理机理 |
| 摘要点击 4807 全文点击 3251 投稿时间：1994-01-07 |
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| 中文关键词 人工湿地 废水处理 有机物 脱氮 除磷 |
| 英文关键词 constructed wetlands wastewater treatment organics nitrogen removal phosphorus removal |
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| 中文摘要 |
| 对人工湿地的构造、作用机理进行了较详尽的说明,湿地中物理、化学及生物协同作用以及湿地植物输氧造成的湿地基质中好氧、缺氧和厌氧状态的交替出现是保证其对氮磷及有机物具有较强处理效率的原因。研究表明:对进水浓度较低的城市污水,湿地的BOD5和COD去除率大于80%,出水BOD5为10mg/L左右。总氮及总磷去除率可大于60%和90%,较常规二级处理方式具有一定的优越性。 |
| 英文摘要 |
| A detailed investigation was made on the configuration and mechanism of constructed wetlands. It was concluded that the high efficiencies of removing nitrogen, phosphorus and organics are mainly due to the synchronization of physical, chemical and biological processes, and due to the alteration of aerobic, anoxic and anaerobic conditions. For municipal wastewater containing less COD, BOD5 and COD removal rates are greater than 80%, and BOD5 in effluent is around 10 mg/L. The removal rates of total nitrogen and total phosphorus are greater than 60% and 90%. |
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