0000000000161735

AUTHOR

Roxana Elena Ionete

0000-0002-0789-6108

showing 3 related works from this author

Sewage Sludge Derived Materials for CO2 Adsorption

2021

The study tried to contribute to solving two serious environmental issues: CO2 reducing and sewage sludge disposal. Thus, sewage-sludge-derived materials were obtained in order to be evaluated for CO2 adsorption capacity. Therefore, the char resulted after the sewage sludge pyrolysis was subjected to oxidation and chemical activation processes by using different quantities of alkaline hydroxide. One of the obtained materials, activated with a lower quantity of alkaline hydroxide, was also treated with acid chloride. Further, the materials were structural and texturally characterized, and material treated with acid chloride was used for CO2 adsorption tests, due to high surface area and pore…

TechnologyadsorbentsQH301-705.5QC1-999020209 energy02 engineering and technologyChloridechemistry.chemical_compoundAdsorption0202 electrical engineering electronic engineering information engineeringmedicineGeneral Materials ScienceCharBiology (General)QD1-999InstrumentationcharFluid Flow and Transfer Processessewage sludgeChemistryTPhysicsProcess Chemistry and TechnologyGeneral Engineeringcarbon dioxideEngineering (General). Civil engineering (General)021001 nanoscience & nanotechnologyPulp and paper industrypyrolysisComputer Science ApplicationsChemistryVolume (thermodynamics)HydroxideTA1-20400210 nano-technologyPyrolysisSludgemedicine.drugWaste disposalApplied Sciences
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Evaluation of the fuel potential of sewage sludge mixtures with beech sawdust and lignite

2018

Sewage sludge (SS) from municipal wastewater treatment has drawn serious attention of scientists around the world in the attempt to find feasible disposal methods. Therefore, in this work, a solution for valorisation of SS as solid fuel is proposed based on an advanced compositional investigation of SS versus conventional solid fuels, namely, lignite (L) and beech sawdust (BS). A characterisation in terms of proximate analysis and ultimate analysis was performed for the studied materials, both to SS, L, and BS as single fuel and to bi-component mixture formulas of SS and L/BS, in variable proportions of 30:70, 50:50, and 70:30. SS:BS based blends had higher hydrogen (from 4.43 wt. % to 5.14…

Renewable Energy Sustainability and the EnvironmentChemistry020209 energy02 engineering and technology010501 environmental sciencesPulp and paper industrySolid fuelCombustion01 natural sciencesWastewaterBiofuelvisual_art0202 electrical engineering electronic engineering information engineeringvisual_art.visual_art_mediumSewage sludge treatmentSawdustValorisationSludge0105 earth and related environmental sciencesJournal of Renewable and Sustainable Energy
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The impact of anthropogenic activities to the level of some POPs residues in bovine milk from several farms in Romania

2020

Bovine milkGeneral ChemistryFood scienceBiologyStudia Universitatis Babeș-Bolyai Chemia
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