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首页> 外文期刊>African Journal of Biotechnology >Potential of a polyculture of Arundo donax and Typha latifolia for growth and phytotreatment of wastewater pollution
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Potential of a polyculture of Arundo donax and Typha latifolia for growth and phytotreatment of wastewater pollution

机译：Arundo donax和typha latifolia混养对废水污染的生长和植物处理的潜力

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摘要

Arundo donax?and?Typha latifolia?are emergent macrophyte species that commonly reproduce in humid areas during warm months. This study investigated the growth and pollutant removal capacity of these two species planted in polyculture in a vertical flow filter bed for rural wastewater treatment. Plant shoot height was monitored and biomass production and nutrient uptake were assessed. Water physicochemical parameters were also monitored.?A. donax?showed higher height elongation (288 cm), phytomass production (2.4 kg dry biomass/m2) and nitrogen uptake (21.1 mg/kg DW) than did?T. latifolia. Phosphorus and potassium retention was identical for both species. The macrophyte bed achieved higher removal rates for biochemical oxygen demand (BOD) (76%), chemical oxygen demand (COD) (82%), total suspended solids (TSS) (96%), total Kjeldahl nitrogen (TKN) (33%) and total phosphorus (TP) (46%), compared to an unplanted basin. The macrophyte species used were able to grow and to contribute to the rural wastewater purification in the adopted experimental constructed wetland.
机译：Arundo donax和Typha latifolia是新兴的大型植物，通常在温暖的月份在潮湿的地方繁殖。本研究调查了在垂直流滤床中用于农村废水处理的两种混养植物的生长和污染物去除能力。监测苗高并评估生物量生产和养分吸收。还监测了水的理化参数。 Donax？的身高伸长率（288 cm），植物气溶胶产量（2.4 kg干生物量/ m2）和氮吸收（21.1 mg / kg DW）比T高。阔叶植物。两种物质的磷和钾保留量相同。大型植物床对生化需氧量（BOD）（76％），化学需氧量（COD）（82％），总悬浮固体（TSS）（96％），凯氏氮（TKN）（33％）的去除率更高）和总磷（TP）（46％），相比之下，未种植的盆地。在采用的实验性人工湿地中，所用的大型植物能够生长并有助于农村污水的净化。

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