aerial view of sewage treatment plant
Schlüsselwörter
aerial,
air,
biomass,
bird,
circle,
cleaning,
construction,
dirty,
ecology,
environment,
europa,
facility,
factory,
flight,
flow,
fly,
garbage,
industrial,
industry,
land,
plant,
poland,
processing,
purification,
purified,
purity,
reusing,
recycling,
reduce,
removal,
river,
sewage,
sludge,
smell,
treatment,
unpleasant,
urban,
view,
waste,
water,
wroclaw
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