Monitoring of Iron absorbtion using a constructed wetland pilot plant with an hybrid layout

TL;DRAbstract

The main purpose of this study was strictly focused on the treatment of iron pollution present in an artificial wastewater (obtained starting from iron sulfate heptahydrate) by the use of constructed wetland system. The effect of different tanks technologies (vertical and horizontal subsurface flow), bedding material, and plant species was also investigated. A pilot-scale study was conducted on an hybrid layout CW system operated in vertical and horizontal mode. Two vertical systems differed from each other with their bedding material and planted with different species (Juncus and Typha Latifolia). Also one horizontal system, filled with different substrate and planted with Papyrus, was used after the two vertical tanks. The CW was designed to work as an hybrid system where the flow, of 50 l/day, crossed alternately from the two vertical tanks and then to the horizontal one. The hydraulic retention time was set equal to about 4 days and the Iron concentration in the inlet was 50mg/l. T

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