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Waste water treatment plant.
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29149575
16.9s
Stock Video
KEYWORDS
biology
circle
city
clean
construction
dirty
ecology
engineer
engineering
environment
environmental
factory
filtration
flow
industrial
industry
plant
pollution
pool
production
purification
purified
purity
recycle
recycling
removal
reservoir
round
sanitary
sanitation
sedimentation
sewage
sludge
steel
supply
system
tank
treatment
turbidity
turbine
urban
utility
waste
waste water
wastewater
wastewater treatment
water