A wastewater treatment plant with a sludge thickening unit.
Palabras clave
sewage,
liquid,
treatment,
dirty,
industry,
clean,
water,
sludge,
aerial view,
biology,
engineering,
growth,
horizontal,
material,
no people,
photo,
pollution,
purity,
recycling,
separation,
color image,
industrial,
station,
cleaning,
garbage,
social issue,
technology,
circle,
environmental conservation,
equipment,
sewer,
slimy,
environment,
plant,
environmental issue,
storage tank,
chemistry,
contemporary,
development,
dirt,
economy,
environmental,
facility,
factory,
flowing
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