| 摘要 |
PROBLEM TO BE SOLVED: To constitute a dehydration vehicle loaded with a multi-plate type filtration device made to a compact size. SOLUTION: The dehydration vehicle is constituted by loading a filtration tank having a sludge-feed pump; flocculant tanks 2a, 2b; chemical feed pumps 9, 9' for drawing out a flocculant solution from the flocculant tanks; a flocculation stirring tank 3 for receiving and flocculating the sludge and the flocculant solution; and a composition arrangement comprising an upper arrangement and a lower arrangement having an upward slope in which respective three or more multiple disk type filtration bodies 29 are continuously provided in parallel in a processing direction in order to receive and dehydrate a sludge raw water overflowing from the flocculation stirring tank. At least two filtration bodies in the upper arrangement except for an upper end side of the composition arrangement and four filtration bodies in the lower arrangement are formed by alternately and multiply arranging the large number of rotation filtration plates and spacers having a smaller diameter than that of this rotation filtration plate and a slightly thicker thickness than the rotation filtration plate. A plurality of filtrate apertures for forming a plurality of filtrate channels penetrating through the filtration bodies and opened to the outer periphery of the spacer are annularly arranged on these rotation filtration bodies and the spacers.
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