| 摘要 |
PROBLEM TO BE SOLVED: To provide a sludge dewatering method in which a treated liquid quantity is much, the SS quantity after the treatment is little, as well as the cake water content rate after the dewatering is low, by forming, for the dewatering treatment of a sludge, strong agglomerated flocks having a large particle size with a less addition amount than the conventional sludge dewatering agent.SOLUTION: Provided is a sludge dewatering method in which a dewatering treatment is carried out after adding and mixing, to sludge, a sludge dewatering agent, an inorganic coagulant, and a sludge dewatering agent in this order.SELECTED DRAWING: None |
