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| 新型分层生物滴滤池去除污水中氮磷的性能研究 |
| Nitrogen and Phosphorus Removal Performance in the Novel Multi-Layered Biological Tricking Filter |
| Received:October 16, 2013 |
| DOI：10.13254/j.jare.2013.0178 |
| 中文关键词: 分层生物滴滤池;滤料;水力负荷;回流比;氮;磷 |
| 英文关键词: multi-layered biological tricking filter;filter medium;hydraulic loading;recirculation ratio;nitrogen phosphorus |
| 基金项目:公益性行业(农业)科研专项“平原水网区农业源污染防控技术集成与示范”(201303089) |
| Author Name | Affiliation | E-mail | | CUI Ting-ting | School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai 200240, China | | | HE Xiao-juan | School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China | | | LING Ran | School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai 200240, China | | | SUN Xin | School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai 200240, China | | | LI Xu-dong | School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai 200240, China | lixudong@sjtu.edu.cn |
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| 中文摘要: |
| 生物滴滤池是农村生活污水处理的主要技术之一,但其存在氮、磷去除能力有限,稳定性不高等缺点。为提高新型分层生物滴滤池的氮磷去除效率,探索最佳工艺条件,本文采用新型分层生物滴滤池为试验装置,考察了滤料种类、水力负荷、回流比等对装置去除污水中氮磷性能的影响。结果表明,当滤料为炉渣、水力负荷为4 m3·m-2·d-1、回流比为2∶1时滤池去除氮磷的效果最好,对NH4+-N、TN、TP、COD的平均去除率分别可达到87.08%、57.37%、66.04%、80.78%;采用较高的回流比是滴滤池提高脱氮效果的一条有效途径。 |
| 英文摘要: |
| Biological trickling filter is one of the main rural sewage treatment technology, but it still has the shortcomings such as lower re-moval efficiency for nitrogen and phosphorus or lower stability. In order to improve the nitrogen and phosphorus removal efficiency of the de-vice and find out its optimum technological conditions, the study took the novel multi-layered biological tricking filter as the device to test the contribution of filter medium, hydraulic loading, recirculation ratio on the treatment of nitrogen and phosphorus removal. The results showed that when the hydraulic loading of 4 m3·m-2·d-1, the recirculation ratio rate of 2∶1 and slag as filter medium were applied, the best effect could be achieved in the filter. The highest mean efficiency of NH4+-N, TN, TP and COD were 87.08%, 57.37%, 66.04% and 80.78%, respectively.The results also indicated that higher recirculation ratio was one of effective paths to improve nitrogen removal efficiency. |
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