(Water Quality) The rising of previously settled solids in the settling tank of an activated sludge system. The immediate cause is denitrification, resulting in the formation of nitrogen gas and buoyancy of the sludge mass. The result is that solids are carried away with the effluent.
RISING SLUDGE
Meaning of RISING SLUDGE in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012