Sumários

Waste Classification.

13 janeiro 2023, 11:30 • Susete Maria Martins Dias

Practicing the waste classification following the EWC, e.g. ELV components, sludges and catalysts containing heavy metals, and packaging wastes.

Solid wastes classification and Legal framework. Hazardous waste properties. European Waste Code.

13 janeiro 2023, 10:00 • Susete Maria Martins Dias

Legal framework for non-hazardous and hazardous wastes. Specific source separation and collection waste stream target 2030, including household hazardous wastes.
Persistent, Bioaccumulative and Toxic substances. Waste Hazards properties.
Hazardous wastes classification and challenges.
European Waste Code.

Waste to energy plants.

12 janeiro 2023, 12:00 • Susete Maria Martins Dias

Examples of plant layout diagrams and discussion: feeding storage and control, odor control, air supply, auxiliary fuels, bottom ashes and fly ashes fate.
Legal framework accomplishment.
Strategies for plant's thermal and electrical efficiencies optimization.

Cont. of previou class.

12 janeiro 2023, 11:00 • Susete Maria Martins Dias

Analysis of refuse Mass-fired combustion and gasification pros and cons.
Feeding characteristics and operation of a downdraft gasifier for refuse-derived fuel valorization addressing additives required and the integrated process diagram.
Syngas valorization processes.
Plastics and composite materials pyrolysis.

Waste Biological and Chemical properties cont. Waste to Energy integrated analysis and Resource Recovery.

12 janeiro 2023, 09:00 • Susete Maria Martins Dias

Cont.of previous class.

Biodegradability estimation based on VS content. Odoriferous compounds formation and release. Fly breading. Impact on wastes collection frequency and waste management downstream.
  • Chemical properties:
  • Proximate analysis
  • Fusing point of ash
  • Ultimate analysis (major elements, halogenated compounds and C/N ratio features )
  • Energy content.

Mechanical and Biological Treatment plants for urban waste. End products valorization by biological transformation processes,and refuse fraction features.
Energy content valorization of urban waste residual fraction, mechanical treatment of source separation and collection of food wastes and refuse of materials recovery facilities:
  1. mass fired combustion (grate systems); self-sustainability conditions
  2. biostabilization pre-treatment methods for:
    1. gasification,
    2. pyrolysis.