Effect of migration of amorphous iron oxide on phosphorous spatial distribution in constructed wetland with horizontal sub-surface flow
作者： Y.X. Chong , G.W. Yu , X.Y. Cao , H.T. Zhong
DOI: 10.1016/J.ECOLENG.2012.12.026
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摘要: Abstract In a laboratory-scale constructed wetland (CW) with horizontal sub-surface flow, the migration of amorphous oxide iron (AOI) in medium and spatial distribution phosphorus (P) were researched. Five months after treating wastewater, AOI concentration changed different area bed. Compared before wastewater treatment, it rose front rhizosphere decreased whole non-rhizosphere, remained almost same back rhizosphere. addition, plaque containing much appeared on surface all plant roots. The Fe level root reached about 25.88 ± 9.92 (n = 6) 17.33 ± 2.72 (n = 6) g Fe/kg dried respectively. These should be resulted from non-rhizosphere to CW. P was impacted by migration. had higher content than one because its concentration. Corresponding areas, levels biomass also ones area.
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