Investigating the efficiency of Vertical Sub-Surface Flow Constructed Wetlands in the Reduction of Faecal Indicator Bacteria and Organic matter Under Varied Sizes of Gravel Substrate Aggregates
Abstract:Constructed wetlands (CWs) polish wastewater prior to discharge into aquatic receptacles. Size variabilities of substrates used in CWS may have effects on the treatment efficiencies though there is scanty information regarding this aspect in VSSF CWs. To address this knowledge gap, a laboratory scale mesocosm experiment was set up to investigate the potential of a VSSF CW to reduce organic matter and FIB using various gravel substrate aggregate sizes. These consisted of three gravel size treatment units; <1… Show more
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