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Influence of fly ash and sewage sludge application on wheat biomass production,nutrients availability,and soil properties

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International Journal of Coal Science & Technology 2014年第2期1卷 221-226页

作者： Christos Tsadilas vasilios samaras E.Evangelou Sabry M.Shaheen National Agricultural Research Foundation Institute of Soil Mapping and ClassificationLarissaGreece Faculty of Agriculture University of KafrelsheikhKafr El-SheikhEgypt

The influence of fly ash(FA)applied alone and/or with sewage sludge(SS)on wheat(Triticum vulgare)grain yield,biomass production and soil properties was studied in a field *** results showed that both FA and SS significantly increased grain yield and plant *** applied alone increased significantly soil pH and EC while FA applied together with SS did not significantly affect them compared to mono FA *** pH and EC values increased with time in FA and FA-SS *** increased soil organic matter and total N content and SS applied together with FA increased also available soil *** the plant nutrients tested only tissue N concentration was increased significantly in all treatments compared to ***,Zn,Mn,Ni,and Pb at both available and total concentrations are significantly affected.

关键词： Fly ash Sewage sludge By-product of coal combustion Wheat biomass product Soil property

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Effectiveness of tertiary treatment processes in removing different classes of emerging contaminants from domestic wastewater

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Frontiers of Environmental Science & Engineering 2022年第11期16卷 261-272页

作者： Olga S.Arvaniti Marilena E.Dasenaki Alexandros G.Asimakopoulos Niki C.Maragou vasilios G.samaras Korina Antoniou Georgia Gatidou Daniel Mamais Constantinos Noutsopoulos Zacharias Frontistis Nikolaos S.Thomaidis Athanasios S.Stasinakis Department of Environment University of the AegeanMytilene 81100Greece Department of Chemical Engineering University of PatrasPatras 26504Greece Department of Agricultural Development Agrofood and Management of Natural ResourcesNational and Kapodistrian University of AthensPsachna 34400Greece Department of Chemistry National and Kapodistrian University of AthensAthens 15771Greece Department of Chemistry Norwegian University of Science and TechnologyTrondheim NO-7491Norway Core Labs King Abdullah University of Science and TechnologyThuwal 23955-6900Saudi Arabia Sanitary Engineering Laboratory Department of Water Resources and Environmental EngineeringSchool of Civil EngineeringNational Technical University of AthensAthens 15780Greece Department of Chemical Engineering University of Western MacedoniaKozani 50132Greece

In this work,38 different organic emerging contaminants(ECs),belonging to various chemical classes such as pharmaceuticals(PhCs),endocrine-disrupting chemicals(EDCs),benzotriazoles(BTRs),benzothiazoles(BTHs),and perfluorinated compounds(PFCs),were initially identified and quantified in the biologically treated wastewater collected from Athens’(Greece)Sewage Treatment Plant(STP).Processes already used in existing STPs such as microfiltration(MF),nanofiltration(NF),ultrafiltration(UF),UV radiation,and powdered activated carbon(PAC)were assessed for ECs’removal,under the conditions that represent their actual application for disinfection or advanced wastewater *** results indicated that MF removed only one out of the 38 ECs and hence it was selected as pretreatment step for the other *** radiation in the studied conditions showed low to moderate removal for 5 out of the 38 *** showed better results than UF due to the smaller pore sizes of the filtration ***,this enhancement was observed mainly for 8 compounds originating from the classes of PhCs and PFCs,while the removal of EDCs was not statistically *** the various studied technologies,PAC stands out due to its capability to sufficiently remove most *** particular,removal rates higher than 70%were observed for 9 compounds,22 were partially removed,while 7 demonstrated low removal *** on our screening experiments,future research should focus on scaling-up PAC in actual conditions,combining PAC with other processes,and conduct a complete economic and environmental assessment of the treatment.

关键词： Micropollutants Wastewater PAC Membranes UV Tertiary treatment

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