Enhanced nutrient removal and mechanisms study in benthic fauna added surface-flow constructed wetlands: The role of Tubifex tubifex
Enhanced nutrient removal and mechanisms study in benthic fauna added surface-flow constructed wetlands: The role of Tubifex tubifex
复制标题
添加表面流人工湿地的底栖动物群强化营养物去除和机制研究：Tubifex tubeifex 的作用。
DOI：
10.1016/j.biortech.2016.11.035
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发表时间：
2017-01-01
影响因子：
11.4
通讯作者：
Liang, Shuang
中科院分区：
文献类型：
--
作者：
Kang, Yan;Zhang, Jian;Liang, Shuang
本研究设计了一个组合底栖动物-T。通过添加T. tubifex。结果表明，在相同的试验条件下，SFCW对氮、磷的去除率分别为81.14 ± 4.16%和70.49 ± 7.60%，比未加T的SFCW分别提高了22.27%和27.35%; tubifex。在试验的SFCW中还观察到较低的硝酸盐（2.11 +/- 0.79 mg/L）和铵（0.75 +/- 0.64 mg/L），比不含T的SFCW低3.46 mg/L和0.52 mg/L。tubifex。微生物研究证实了T. tubifex。底泥和T. orientalis的生物扰动作用。tubifex。此外，与T. tubifex、较高比例的颗粒态磷（22.66 ± 3.96%）和胶体态磷（20.57 ± 3.39%）促进了磷的沉降和T.东方本研究的结果提供了一个生态和经济的策略，以提高性能的SFCW。(C)2016爱思唯尔有限公司版权所有
This study designed a combined benthic fauna-T. orientalis-substrate-microbes surface-flow constructed wetlands (SFCWs) through the addition of T. tubifex. Results showed that, the removal efficiencies of nitrogen and phosphorus in the tested SFCWs achieved 81.14 +/- 4.16% and 70.49 +/- 7.60%, which were 22.27% and 27.35% higher than that without T. tubifex. Lower nitrate (2.11 +/- 0.79 mg/L) and ammonium (0.75 +/- 0.64 mg/L) were also observed in the tested SFCWs, which were 3.46 mg/L and 0.52 mg/L lower than that without T. tubifex. Microbial study confirmed the increased denitrifiers with T. tubifex. The lower nitrogen in effluent was also attributed to higher contents of nitrogen storage in sediment and T. orientalis due to the bioturbation of T. tubifex. Furthermore, with T. tubifex, higher proportions of par-ticulate (22.66 +/- 3.96%) and colloidal phosphorus (20.57 +/- 3.39%) observed promoted phosphorus settle-ment and further absorption by T. orientalis. The outcomes of this study provides an ecological and economical strategy for improving the performance of SFCWs. (C) 2016 Elsevier Ltd. All rights reserved.