FILTRATION METHOD AND FILTRATION APPARATUS

PROBLEM TO BE SOLVED: To provide a filtration method and a filtration apparatus where flow reduction in slurry filtration can be prevented even when slurry containing very fine particles is filtered.SOLUTION: A filtration apparatus comprises: filter plates 6 where recessed parts 9 are formed on both surfaces; a filter cloth to cover at least the recessed parts 9 and separate the slurry to particles and a filtrate by filtration; filtration rooms which are formed by overlapping of the filter plates 6 and surrounded with the opposed recessed parts 9; a traveling unit to travel a plurality of the filter plates 6 to an overlapping direction opposed with the recessed parts 9; introduction parts 12 which are formed at the filter plates 6 and which introduce the slurry into the filtration rooms; discharge parts which are formed at the filter plates 6 and which discharge the filtrate passed through the filter cloth; and mesh bodies 17 located between the recessed parts 9 and the filter cloth.