student research projects on urban geoscience issues: volcanic hazards, urban waste and beach...
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Student Research projects on urban geoscience issues:
Volcanic Hazards, Urban Waste and Beach Hazards
Dept of Earth and Environmental Sciences / Munich GeoCenter
Cristina P. De Campos
Volcanic Hazards:
Volcanic Hazard = f (Volcanic activity X Urban Environment)
Naples
Students projects:
Volcanologic Excursion : 10 days trip to the Eolian Islands or Canary Islands
Waste Hazards:
Waste Hazards:
Soraya Heuss-Assbichler
Mineralogy of Municiple Solid Waste Incineration Residues
20 kg
APC residueBoiler ashBottom ash
Scrap metal
Volume reduction atabout 90 vol.- %
material flow in a MSWI
metallic Aluminium 2 Al + 6 H2O 2 Al(OH)3 + 3 H2
– pH 4,5 – 8,8protective oxide film
– pH > 10– pH < 4
increasing solubility
– Cl - Milieu pitting corrosion
Different types of corrosion textures in altered bottom ashesresulting in hydrogen production at alkaline reaction conditions
A) type 1 - Al particle surrounded by a rim of aluminum hydroxide, B) type 2 - multiphase rim around Al: Al hydroxide, hydrocalumite, monosulfate or ettringite, C) detail image of multiphase rim, (BSE image)
A B
AlOOH
Ett
Hc
Al
C
Concentration of hydrogen in landfill gas observed in a monofill in S-Germany LEL: lower explosion limit for hydrogen in contact with air
Beach Hazards
Federal University of Rio de Janeiro UFRJ
Final maps