Search results for "Surface flow constructed wetland"

showing 3 items of 3 documents

Reuse of urban-treated wastewater from a pilot-scale horizontal subsurface flow system in Sicily (Italy) for irrigation of Bermudagrass (Cynodon dact…

2016

Constructed wetlands (CW) are one of the most important biological technology for the treatment and reuse of wastewaters. The aim of this study was to evaluate the reuse of treated wastewater (TWW) from CW for irrigation of Bermudagrass turf (Cynodon dactylon (L.) Pers.) and assess the effects of TWW on the biometric and qualitative parameters of the turfgrass and on chemical–physical soil properties. The research was carried out in Sicily (Italy) in a pilot-scale horizontal subsurface flow system which was fed with urban TWW following secondary treatment from an activate sludge wastewater treatment plant. The pilot-system included three separate parallel units. The outflow TWW flowed downh…

0106 biological sciencesSecondary treatmentFertiliser savingIrrigationOcean EngineeringWetland010501 environmental sciences01 natural sciencesTreated wastewaterSubsurface flowBermudagrass turf0105 earth and related environmental sciencesWater Science and Technologygeographygeography.geographical_feature_categorybiologyHorizontal subsurface flow constructed wetlandEnvironmental engineeringCynodon dactylonbiology.organism_classificationPollutionSettore AGR/02 - Agronomia E Coltivazioni ErbaceeWaste treatmentWastewaterAgronomyWater savingEnvironmental scienceSewage treatment010606 plant biology & botany
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Hydrological and hydraulic behaviour of a surface flow constructed wetland treating agricultural drainage water in northern Italy.

2020

Abstract A surface flow constructed wetland (SFCW) treating agricultural drainage water was investigated with the aim to detect modifications in hydrological and hydraulic characteristics after more than a decade of operation. Ponded infiltration tests were conducted to estimate the saturated hydraulic conductivity, Ks, of the surface soil layer at the point scale. At the global scale, infiltration rate, i, was computed from the water balance to detect leakages from the pervious wetland surface. Tracer tests were conducted to analyse the existence of preferential flow inside the system and to estimate its hydraulic retention time (HRT). Clogging phenomena occurred given a mean Ks value of 3…

HydrologygeographyEnvironmental Engineeringgeography.geographical_feature_category010504 meteorology & atmospheric sciencesHydraulic retention timeInfiltration010501 environmental sciencesInfiltration (HVAC)Inlet01 natural sciencesPollutionSaturated hydraulic conductivityCloggingWater balanceHydraulic conductivityConstructed wetlandSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-ForestaliEnvironmental ChemistryEnvironmental scienceSurface flow constructed wetlandDrainageWaste Management and DisposalHydraulic retention time0105 earth and related environmental sciencesThe Science of the total environment
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Pollutant removal efficiency of a pilot-scale Horizontal Subsurface Flow in Sicily (Italy) planted with Cyperus alternifolius L. and Typha latifolia …

2016

Constructed wetland systems (CWs) are developed biological technologies for the treatment and reuse of wastewater. The aims of this study were to evaluate the treatment performance of a pilot Horizontal Subsurface Flow system (HSSFs), to evaluate the reuse of treated wastewater (TWW) from CWs for the irrigation of giant reed (Arundo donax (L.)) and to assess the effects of TWW on the biomass yield of giant reed grown for pellet production. The research was carried out in Sicily (Italy) in a pilot-scale HSSFs which was fed with urban-treated urban wastewater following secondary treatment from an activated sludge wastewater treatment plant. Giant reed plots were irrigated with TWW from plante…

Secondary treatmentIrrigation020209 energyOcean Engineering02 engineering and technology010501 environmental sciences01 natural sciencesPellet0202 electrical engineering electronic engineering information engineeringSubsurface flowWater balance0105 earth and related environmental sciencesWater Science and TechnologyTyphabiologyGiant reedEnvironmental engineeringArundo donaxbiology.organism_classificationPollutionUrban treated wastewaterSettore AGR/02 - Agronomia E Coltivazioni ErbaceeCyperus alternifoliusWastewaterEnvironmental scienceHorizontal Subsurface Flow constructed wetlandSewage treatment
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