Pollutant removal by an integrated vertical-flow constructed wetland treating simulated river water by reoxygenation
作者： S.Y. Lu , Y. Xing , J. Liu , X.C. Jin , J.T. Qu
DOI: 10.1080/02772248.2015.1050189
关键词: Ecology 、 Environmental chemistry 、 Water flow 、 Chemical oxygen demand 、 Environmental science 、 Ammonia 、 Nitrogen 、 Nitrate 、 Wetland 、 Constructed wetland 、 Pollutant
摘要: The effects and mechanism of chemical oxygen demand (COD), nitrogen, phosphorus concentration removal by an integrated vertical-flow constructed wetland were studied in the system during one inlet–outlet operating period, two typical stages (each stage is connective 24 h, sampled once every 4 h). ammonia decreased along flow direction system, while levels nitrate (NO3−-N) increased. In total nitrogen (TN) fell with rising operation time due to evacuative reoxygenation. TN NH3-N rates 26.6% 97.5%, respectively. COD rapidly early more gradually water system. Average (TP) rate was 20.71%. NO3−-N had a tendency decline increasing time. Ammonia concentrations displayed only small variation results also in...
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