湖泊科学2017，Vol.29Issue(5)：1084-1090,7.DOI:10.18307/2017.0506
分级进水对阶梯垂直流人工湿地污水处理效果的影响
Effect of step feeding on the performance of multi-stage vertical flow constructed wetland for municipal wastewater treatment
摘要
Abstract
To investigate the effect of step feeding on the performance of multi-stage vertical flow constructed wetland(MS-VFCW)for municipal wastewater treatment,raw wastewater with four step feeding ratios(0％,10％,20％ and 30％)were dosed to the second stage of the MS-VFCW plots at a total hydraulic load of 100 mm/d.The results showed no significant differences in removal of chemical oxygen demand(COD)and total phosphorus(TP)among the four step feeding ratios,and the highest removal rates of COD and TP reached up to 87.80％ and 81.17％,respectively.Most COD was removed in the first stage,with an average contribution of 82.18％.While the most TP was removed in the third stage,with an average contribution of 54.37％.In contrast,the differences in total nitrogen(TN)removal rates among the four step feeding ratios were significant,with the highest TN removal rates(61.70％±4.48％)under the ratio of 20％,in which the average removal contribution of each stage was 36.52％,42.11％ and 21.37％,respectively.The step feeding ratio was recommended as 20％ in application of the hybrid VFCWs so as to achieve sound pollutant removal performance.关键词
阶梯垂直流人工湿地/分级进水/脱氮除磷Key words
Multi-stage vertical flow constructed wetland/step feeding/removal of nitrogen and phosphorus引用本文复制引用
沈林亚,吴娟,钟非,向东方,成水平..分级进水对阶梯垂直流人工湿地污水处理效果的影响[J].湖泊科学,2017,29(5):1084-1090,7.基金项目
国家自然科学基金项目(51578395)和上海市创新行动计划项目(16DZ1204803)联合资助. （51578395）
