56. In bag filters, filter fabrics are never made of
57. In bag filters, filter fabrics are never made of
58. Introduction of slurry in a plate and frame filter press is done through a plate in each frame. The plate of this filter has a __________ surface.
59. For removal of very small amounts of precipitate from large volume of water, the most suitable filter is the __________ filter.
60. Gelatinous solid (which plug the septum) can be filtered by a __________ filter.
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