| 摘要 |
PROBLEM TO BE SOLVED: To provide a dehydrator which when adding a coagulant to sludge charged to a concentration part of the dehydrator, can add the coagulant to a wide range of the sludge by distributing the coagulant by a simple method.SOLUTION: The dehydrator is provided that comprises a concentration part for concentrating sludge, a charging part for charging the sludge into the concentration part, and a coagulant adding part that is installed in a stage subsequent to the charging part and adds a liquid chemicals containing the coagulant to the sludge. The coagulant adding part comprises an overflow weir for distributing the liquid chemicals. The coagulant is stably distributed without precipitation by using the coagulant adding part comprising the overflow weir, and thus added to a wide range of the sludge.SELECTED DRAWING: Figure 1 |
