Detail of foam in huge circular sewage sedimentation tank. Wastewater company source water.
Palabras clave
activated,
aeration,
age,
background,
basin,
biology,
biomass,
canal,
compost,
dirty,
disgust,
drain,
effluent,
environment,
excrement,
field,
flowing,
foam,
industry,
life,
loading,
mud,
oxygen,
pit,
plant,
duck pond,
pool,
problem,
problem,
recycling,
river,
rust-eaten,
sanitary,
scum,
sewage,
sludge,
dirtied,
stir,
stream,
tank,
technology,
temperature