部分饱和垂直人工湿地(PSV-CWs)是一种新型的污水处理系统,可以在好氧和厌氧条件下工作,有利于去除高浓度的污染物。如被生活污水和垃圾渗滤液污染的河流。该研究的目的是评估PSV-CWs的效率,该效率使用香豆蔻和鹦鹉的单一培养和多培养物处理被露天垃圾场和生活污水中的渗滤液污染的河水。使用了六个PSV-CWs实验单元;其中两个种植了香豆杉单一栽培,两个与Heliconiapsittacorum单一培养,两个与两种植物的多重培养。结果表明,在具有多培养物的系统中,有机物和氮的去除效率更高(p<0.05)(TSS:95%,BOD5:83%,COD:89%,TN:82%和NH4+:99%)。总的来说,整个系统显示出较高的平均去除效率(TSS:93%,BOD5:79%,COD:85%,TN:79%,NH4+:98%和TP:85%)。关于植被,这两个物种在单一栽培的单位中发展得更好,作为香茅,达到了更显著的发展。然而,这两个物种对污染环境都表现出很高的抵抗力。这些结果表明,传统自由流垂直人工湿地(FFV-CWs)的去除量比文献中报道的要高,因此PSV-CW可能是处理此类废水的合适选择。
该研究解决了垃圾渗滤液和生活废水排放对发展中国家水资源的污染。建议通过部分饱和垂直人工湿地(PSV-CW)进行处理,which,尽管信息有限,已被证明可以有效去除高浓度废水中的污染物。除了评估PSV-CW之外,研究考察了不同类型植被对污染物去除效率的影响,结论PSV-CWs是治疗这些废水的有希望和可行的选择。
Partially Saturated Vertical Constructed Wetlands (PSV-CWs) are novel wastewater treatment systems that work through aerobic and anaerobic conditions that favor the removal of pollutants found in high concentrations, such as rivers contaminated with domestic wastewater and landfill leachate. The objective of the study was to evaluate the efficiency of PSV-CWs using monocultures and polycultures of Typha latifolia and Heliconia psittacorum to treat river waters contaminated with leachates from open dumps and domestic wastewater. Six experimental units of PSV-CWs were used; two were planted with Typha latifolia monoculture, two with Heliconia psittacorum monoculture and two with polycultures of both plants. The results indicated better organic matter and nitrogen removal efficiencies (p < 0.05) in systems with polycultures (TSS:95%, BOD5:83%, COD:89%, TN:82% and NH4+:99%). In general, the whole system showed high average removal efficiencies (TSS:93%, BOD5:79%, COD:85%, TN:79%, NH4+:98% and TP:85%). Regarding vegetation, both species developed better in units with monocultures, being Typha latifolia the one that reached a more remarkable development. However, both species showed high resistance to the contaminated environment. These results showed higher removals than those reported in the literature with conventional Free Flow Vertical Constructed Wetlands (FFV-CWs), so PSV-CWs could be a suitable option to treat this type of effluent.
The research addresses the contamination of water resources in developing countries by landfill leachate and domestic wastewater discharges. It proposes treatment through Partially Saturated Vertical Constructed Wetlands (PSV-CWs), which, despite the limited information available, have been shown to be effective in removing pollutants in effluents with high concentrations. In addition to evaluating PSV-CWs, the study examines the impact of different types of vegetation on pollutant removal efficiency, concluding that PSV-CWs are a promising and viable option for the treatment of these effluents.