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GB532836A
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Method of and means for treating sewage screenings which have already been removed from sewage
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GB525006A
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Method of and means for separating materials of different physical characters
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GB523878A
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Improvements relating to the traversible carriages used in rectangular sprinkler installations for treating sewage
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GB522213A
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Improved method of and apparatus for treating and disposing of fecal matter and vegetable or like refuse
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GB521876A
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Apparatus for collecting and conveying sludge or solids in connection with the treatment of sewage
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GB516345A
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Apparatus for distributing sewage over a filter bed
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GB489452A
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Method of and apparatus for collecting and conveying sludge in connection with sewage plant
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GB471003A
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Floating covers for sewage sludge digestion tanks or apparatus
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GB412871A
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Sludge digestion apparatus for treating sewage sludge
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GB429700A
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Method of and means for removing floating scum and such like from the surface of sludge settling tanks used in the treatment of sewage
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GB412115A
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Sludge digestion apparatus for treating sewage sludge
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GB390989A
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Installation for the removal of sludge from flat settling or clarification tanks
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GB346165A
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Fluid disperser, spreading or filming appliance for use with the revolvable or travelling or other tubes or pipes of sewage sprinklers or distributors
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GB285629A
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Water softening apparatus for use in connection with steam generators or other plant requiring softened water
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GB281855A
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Pen-stock or adjustable sluice or fluid control structure for sewage channels, water-ways and the like
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GB275022A
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Improvements connected with smoke burning arrangements for the fire-bridges of steam generator and like furnaces
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GB279536A
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Improvements in or connected with revolving sprinkler apparatus for dealing with sewage
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