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| 循环强化垂直流人工湿地处理猪场污水 | |
| 引用本文： | 何连生,朱迎波,席北斗,刘鸿亮.循环强化垂直流人工湿地处理猪场污水[J].中国给水排水,2004,20(12):5-8. |
| 作者姓名： | 何连生 朱迎波 席北斗 刘鸿亮 |
| 作者单位： | 1. 清华大学,环境科学与工程系,北京,100084 2. 中国科学院,地理科学与资源研究所,北京,100101 3. 中国环境科学研究院,北京,100012 |
| 基金项目： | 国家基础研究计划(973)项目(2002CB412302) |
| 摘 要： | 对含高浓度有机物和氮磷的养殖场污水采用复合垂直流人工湿地进行处理，并考察了回流出水的循环强化处理效果。结果表明：循环出水显著提高了对BOD5、COD、SS和NH^ 4 -N的去除率，且对BOD5的去除满足Monod方程；大部分NH^ 4 -N被硝化，对NH^ 4 -N的去除率与其表面负荷率呈线性关系；随着硝化反应的进行，碱度减少，pH值不断降低；循环出水可引入部分氧气，延长了污染物和附着于植物根系微生物的接触时间，提高了对污染物的去除率。 |
| 关 键 词： | 猪场污水 垂直流湿地 回流出水 循环率 硝化 |
| 文章编号： | 1000-4602(2004)12-0005-04 |
| 修稿时间： | 2004年8月30日 |
Recirculating and Enhanced Vertical Flow Constructed Wetland for Treatment of Wastewater from Pig Farm |
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| HE Lian-sheng,ZHU Ying-bo,XI Bei-dou,LIU Hong-liang.Recirculating and Enhanced Vertical Flow Constructed Wetland for Treatment of Wastewater from Pig Farm[J].China Water & Wastewater,2004,20(12):5-8. | |
| Authors: | HE Lian-sheng ZHU Ying-bo XI Bei-dou LIU Hong-liang |
| Affiliation: | HE Lian-sheng~1,ZHU Ying-bo~2,XI Bei-dou~3,LIU Hong-liang~3 |
| Abstract: | The wastewater from pig farm with high strength organic pollutants and nutrients was treated by hybrid vertical flow constructed wetland,and the effect of enhanced treatment by recycling effluent was investigated.The result shows that the recycling effluent upgrades significantly the removal for BOD_5,COD,SS,and NH~+_4-N,and BOD_5 removal rate meets the Monod equation;most part of NH~+_4-N is nitrified and the removal rate of NH~+_4-N is linear with the surface loading rate.Along with the nitrification,alkalinity and pH was reduced.The recycling effluent can bring part of oxygen into wetland,thereby prolonging the contact time of pollutants with microbe attached on root system. |
| Keywords: | wastewater from pig farm vertical flow wetland recycling effluent recirculation rate nitrification |
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