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| 1 | Treatmentperformance of integrated vertical-fiow constructed wetland plots fordomestic wastewater 显示文摘 | CHANG Junjun WU Suqing DAI Yanran | 2012 | Ecological Engineering2012，44，1： | 1 |
| 2 | Treatmentperformanceand microorganism community structure of integratedvertical-flow constructed wetland plots for domestic wastewater 显示文摘 | WU Suqing CHANG Junjun DAI Yanran | 2013 | Environmental Science and Pollution Research2013，20，6： | 1 |
| 3 | Effects of the submerged macrophyte Ceratophyllum demersum L. on restoration of a eutrophic waterbody and its optimal coverage显示文摘 | Yanran Dai Chenrong Jia Wei Liang Shenghua Hu Zhenbin Wu | 2011 | Ecological Engineering2011，，： | 1 |
| 4 | Removal of arsenic by pilot-scale vertical flow constructed wetland显示文摘Four pilot-scale Vertical Flow Constructed Wetlands(VFCWs)filled with gravel and planted with Phragmites australis were operated for seven months in the field to study the efficiency of arsenic removal in contaminated wastewater.The average arsenic removal efficiency by the VFCWs was 52.0%±20.2%,52.9%±21.3%,and 40.3%±19.4%at the theoretical concentrations of 50µg/L(CW50),100µg/L(CW100),and 500µg/L(CW500)arsenic in the wastewater,respectively.The results also showed no significant differences in the removal efficiency for conventional contaminants(nitrogen,phosphorus,or chemical oxygen demand)between wastewater treatments that did or did not contain arsenic(P>0.05),except for phosphorus in CW500.The highest average monthly removal rate of arsenic occurred in August(55.9%–74.5%)and the lowest in November(7.8%–15.5%).The arsenic removal efficiency of each VFCW was positively correlated with temperature(P<0.05).Arsenic accumulated in both substrates and plants,with greater accumulation associated with increased arsenic concentrations in the influent.The maximum accumulated arsenic concentrations in the substrates and plants at the end of the experiment were 4.47 mg/kg and 281.9 mg/kg,respectively,both present in CW500.The translocation factor(TF)of arsenic in the reeds was less than 1,with most of the arsenic accumulating in the roots.The arsenic mass balance indicated that substrate accumulation contributed most to arsenic removal(19.9%–30.4%),with lower levels in plants(3.8%–9.5%).In summary,VFCWs are effective for the treatment of arsenic-containing wastewater. | Yaocheng Fan Tiancui Li Deshou Cun Haibing Tang Yanran Dai Feihua Wang Wei Liang | 2021 | Frontiers of Environmental Science & Engineering2021，15，4： | 0 |
| 5 | Dibutyl phthalate adsorption characteristics using three common substrates in aqueous solutions显示文摘In recent years,the presence and adverse impacts of phthalic acid esters m aquatic environments have gained increasing attention.This work investigated the adsorption behavior of a typical phthalic acid ester,dibutyl phthalate(DBP),onto steel slag,gravel,and shell sand(substrates commonly used in constructed wetlands).The influence of dissolved organic matter(DOM)on DBP adsorption was investigated using humic acid as a proxy for DOM.The results demonstrated that the adsorption of DBP to three substrates reached equilibrium within 96 h,and the adsorption kinetics were well fitted by a pseudo-second-order model.The DBP adsorption isotherms were best fitted by the Langmuir adsorption model.The DBP adsorption capacity decreased in the order of steel slag>gravel>sheII sand,with values of 656 mg/kg,598 mg/kg,and 6.62 mg/kg at 25°C,respectively.DBP adsorbed to the surface of all substrates in a monolayer via an endothermic process.The DBP adsorption capacities of steel slag and gravel decreased as the DOM content increased.The DBP adsorption mechanisms to steel slag and gravel mainly involved the surface coordination of DBP with-OH or-COOH groups and electrostatic interactions.The results of this work suggest that steel slag and gravel may be ideal substrates for use in constructed wetlands to treat wastewater polluted with DBP. | Tiancui Li Yaocheng Fan Deshou Cun Yanran Dai Wei Liang | 2020 | Frontiers of Environmental Science & Engineering2020，14，2： | 0 |
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