| 摘要 |
PROBLEM TO BE SOLVED: To provide a sludge thickening dehydration system which can press-charging a thickened sludge into a screw press without breakdown of flock.SOLUTION: A sludge thickening dehydration system includes a pre-thickening stirring portion 10 which adds a polymer coagulant to to-be-dehydrated sludge and stirs, a thickening portion 20 which thickens the coagulated sludge containing coagulation flock formed in the pre-thickening stirring portion 10, a post-thickening stirring portion 30 which adds a polymer coagulant to the thickened sludge containing the coagulation flock thickened in the thickening portion 20 and a press-charging pump 40 which press-charges the thickened sludge containing the coagulation flock from the post-thickening stirring portion 30, together with a polymer coagulant, into a screw press 50. |
