To require no disposal site by excavating polluted bottom mud from the original ground, then adding a coagulant to the excavated polluted bottom mud, and precipitating flock via solid-liquid separation.
Polluted bottom mud 2 is excavated from the original ground 1, a coagulant is added to the excavated polluted bottom mud, and flock is precipitated via solid-liquid separation. The precipitated flock is dehydrated by a dehydrator, and clean water with a splash reference value or below is splashed. A solidifier is added to the dehydrated polluted bottom mud, granular solidified objects with an optical grain size are generated by a granulating machine, then the solidified objects are returned to the original excavation site. The polluted bottom mud is reduced in volume and is returned to the original site as the solidified objects not transformed into mud again, thus no disposal site is required.
WAKIMURA YOSHIRO
TOKUNAGA YUTAKA
MITSUBOSHI KAGAKU KK
PENTA OCEAN CONSTRUCTION
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