Environmental engineers work at wastewater treatment plants,Water supply engineering working at Water recycling plant for reuse
Palabras clave
aeration,
circle,
city,
cleaning,
ecology,
engineer,
engineering,
factory,
filtration,
hard hat,
helmet,
horizontal,
industry,
male,
man,
microbiology,
one man only,
outdoors,
people,
pipe,
plant,
production,
protective clothing,
purity,
quality,
quality control,
reservoir,
sanitary,
sanitation,
sewage,
sludge,
steel,
storage,
storage tank,
system,
tank,
treatment,
turbidity,
utility,
waste,
water treatment plant,
men at work
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