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