FILTER CLOTH AND FILTER

A filter cloth comprising at least a base layer and a filter layer, characterized in that a ratio T/L of a thickness T of the filter layer to a length L of fiber of a fiber bundle constituting the layer is 0.02-0.7, the sum of a projection of the fiber on a surface of the base layer being 8-350 times as large as an area of the surface of the base layer; a filter cloth characterized in that it comprises at least a base layer and a filter layer mainly composed of fiber bundles having a crimped staple ratio of not less than 5 %; a belt type solid/liquid separator characterized in that it has constituent elements of at least a mechanism provided with a belt of the above filter cloth which is passed around a plurality of rolls and adapted to be moved therearound, a mechanism for supplying raw water onto the inclined belt, a mechanism for sucking for supplied raw water from the rear surface of the belt, a mechanism for dehydrating a cake formed on the belt, by pressurizing the same, a mechanism for peeling off the dehydrated cake, and a mechanism for cleaning the belt; and a filter characterized in that it has constituent elements of at least a mechanism in which the filter cloth is provided around drums or disc type structures so as to divide the filter into inner and outer portions, a mechanism for supplying raw water to the divided outer or inner portion so as to pass the same through the filter cloth, a mechanism for cleaning the cloth from a raw water supplying side and/or a filtrate outgoing side, and a mechanism for discharging condensed water occurring due to a cleaning operation.