Search results for "PH modelling"

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Nitrogen recovery using a membrane contactor: Modelling nitrogen and pH evolution

2020

[EN] A hollow fibre membrane contactor has been applied for nitrogen recovery from anaerobic digestion supernatant at different operating conditions obtaining nitrogen recovery efficiencies over 99 %. A mathematical model able to represent the time evolution of pH and nitrogen concentration during the recovery process is presented in this paper. The developed model accurately reproduced the results obtained in 26 experiments carried out at different pH values (from 9 to 11), temperatures (from 25 to 35 degrees C), membrane surfaces (from 1.2 to 2.4 m(2)) and feed flow rates (from 0.33 x 10(-5) to 5.83 x 10(-5) m(3)/s) predicting the variations in nitrogen recovery rates measured at the diff…

Membrane contactor for nitrogen recoverychemistry.chemical_elementPH modelling02 engineering and technologyAmmonia recovery010501 environmental sciences01 natural sciencesNutrient recovery from anaerobic digestionChemical Engineering (miscellaneous)Waste Management and DisposalTECNOLOGIA DEL MEDIO AMBIENTE0105 earth and related environmental sciencesContactorNitrogen recovery modellingChemistryProcess Chemistry and Technology021001 nanoscience & nanotechnologyAlkali metalPollutionNitrogenVolumetric flow rateAnaerobic digestionMembraneChemical engineeringReagentScientific method0210 nano-technologyJournal of Environmental Chemical Engineering
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