铜器行业是非斯市污染第二大的工业部门,摩洛哥,由于其重金属负荷高。这项研究的目的是检查和评估垂直流人工湿地在使用各种植物物种处理铜器废水中的性能。十个处理系统种植了四种类型的植物:Chrysopogonzizanioides,香茅,芦苇,还有Vitexagnus-castus,而另一个系统仍未种植。这些系统通过测量各种参数进行评估,包括pH值,电导率,悬浮固体,化学需氧量,生物需氧量,硫酸盐,正磷酸盐,Kjeldhal总氮,铵,硝酸盐,亚硝酸盐,和重金属如银,铜,和镍,在十周内使用标准方法。获得的结果证明了这些系统的有效性。种植Ch时。zizanioides,该系统实现了83.64%的淘汰率,98.55%,91.48%,86.82%,80.31%,96.54%,98%,悬浮固体为98.82%,铵,亚硝酸盐,BOD5硫酸盐,正磷酸盐,银,和镍,分别。具有V.agnus-castus的系统显示硝酸盐和铜的显着减少,率分别为84.48%和99.10%,分别。在所有系统中都观察到pH值和电导率值显著下降,在其他参数的治疗有效性方面,种植系统和控制系统之间存在显着差异。
这项研究的新颖性在于在非斯市应用人工湿地处理黄铜废水,摩洛哥。因此,进行了比较以评估Chrysopogonzizanioides的去除效率(L.)Roberty和Vitexagnus-castusL.,与香茅和芦苇相比(Cav。)特林。特别选择了这四种植物,因为它们具有高的消除能力和对污染物毒性的抵抗力。值得注意的是,这项研究代表了现有文献中尚未探索的方面。然而,T.latifolia和P.australis已广泛用于人工湿地处理各种废水。这项研究的结果也可以外推到试点规模的人工湿地,为去除黄铜制品废水中的污染物提供有价值的见解。
Brassware industry constitutes the second most polluting industrial sector in Fez city, Morocco, owing to its high heavy metal load. The aim of this
study is to examine and evaluate the performance of vertical flow constructed wetlands in treating brassware effluents using various plant species. Ten treatment systems were planted with four types of plants: Chrysopogon zizanioides, Typha latifolia, Phragmites australis, and Vitex agnus-castus, while another system remained unplanted. These systems underwent evaluation by measuring various parameters, including pH, electrical conductivity, suspended solids, chemical oxygen demand, biological oxygen demand, sulfates, orthophosphates, total Kjeldhal nitrogen, ammonium, nitrates, nitrites, and heavy metals such as silver, copper, and nickel, using standard methods over of ten weeks. The results obtained demonstrate effectiveness of these systems. When planted with Ch. zizanioides, the systems achieved elimination rates of 83.64%, 98.55%, 91.48%, 86.82%, 80.31%, 96.54%, 98%, and 98.82% for suspended solids, ammonium, nitrites, BOD5, sulfates, orthophosphates, silver, and nickel, respectively. System with V. agnus-castus showed significant reductions in nitrate and copper, with rates of 84.48% and 99.10%, respectively. Considerable decrease in pH and electrical conductivity values was observed in all systems, with a notable difference between planted and control systems regarding effectiveness of treatment for other parameters.
The novelty of this
study lies in the application of constructed wetlands for the treatment of brassware effluents in the city of Fez, Morocco. Consequently, a comparison was conducted to assess the removal efficiency of Chrysopogon zizanioides (L.) Roberty and Vitex agnus-castus L., in comparison to Typha latifolia L. and Phragmites australis (Cav.) Trin. These four plant species were specifically chosen for their high elimination capacity and resistance to the toxicity of the pollutants. Notably, this
study represents an unexplored aspect in the existing literature. Nevertheless, T. latifolia and P. australis have been extensively utilized in constructed wetlands for treating diverse wastewaters. The findings from this
study can also be extrapolated to pilot-scale constructed wetlands, offering valuable insights for the removal of pollutants from brassware wastewater.