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IMPROVED FILTRATION OF TREATED PHOTOGRAPHIC EFFLUENTS
IMPROVED FILTRATION OF TREATED PHOTOGRAPHIC EFFLUENTS
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机译:处理后的照相分离液的过滤效果得到改善
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摘要
A method of separation of a precipitate from a treated or untreated photographic processor effluent by the addition of an inert powder of high bulk prior to filtration or settling. The inert powder may be a diatomaceous earth, such a kieselguhr, or aluminium hydroxide or wet sawdust. The separation time and the pressure required to give rapid filtration is reduced. The rate at which the solid phase will settle is similarly improved.
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