aerial view
biomass
chemical
circle
cleaning
clearing
dirty
distillery
drain
drainage
ecology
environment
environmental conservation
facility
factory
filter
filtration
flow
garbage
industry
liquid
pipe
plant
pollution
pool
processing
pumping
purification
recycle
reservoir
reuse
sanitation
sewage
tanker
定額
Aerial view of modern water cleaning facility at urban wastewater treatment plant. Purification process of removing undesirable chemicals, suspended solids and gases from contaminated liquidの素材 [FY310199353585]
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