Specification of George Rydill : treating sewage.

  • Rydill, George.
Date:
1875
Catalogue details

Licence: Public Domain Mark

Credit: Specification of George Rydill : treating sewage. Source: Wellcome Collection.

    11/18 (page 9)
    JRydilVs Improvements in Apparatus for Treating Sewage. There are several important reasons for utilising and collecting the soapy, greasy, and oily waters from dwellings and factories, both sanitary and also valuable for the manufacture of gas of great illuminating power, preventing the fatty acids combining with the & earthy salts in the water to form insoluable soaps and slimy scum, which having once become mixed with sewage and polluted waters would soon cause porous filter beds to be made up. By collecting these soapy, greasy, and oily waters, the porous filter beds work more rapid, better, and longer, causing filtration of sewage and polluted streams to 10 be successfully worked, both under vacuum and pressure, also causing irrigation the same as filtration to be worked more successfully. At present the polluted and fatty acid waters combine with the jearthy salts in the sewage and on lands, forming insoluble soaps and slimy scum which give off unpleasant odours and injurious gases, both in the 15 sewers, rivers, streams, and on lands, causing grass and other cultivated lands irrigated with sewage containing these fatty acids and insoluble soaps, on which cattle have to graze, to be unpleasant to the taste and unhealthy for cattle to graze upon. I prefer to collect the soap and greasy waters of factories and at dwellings by running them direct from 20 the sink or slop stone on to a filter bed of seived, ground, or crushed ashes, either from dwellings steam boiler or other furnaces, or through ground or crushed clinkers, rubbish, brick pieces, stones, earthenware, earths, dust, refuse barks, and other refuse substances, refuse animal charcoal, dross, shieve, allum, shale, and other porous substances. 25 Coal fire ashes being of little or no value I prefer the adaptation of their use, so that which is now a worthless refuse becomes a useful agent as a purifier of polluted waters when used for purposes of filtration. It is important to keep the ashes dry in a box under cover, free from decayed substances. The filter vessel may be made of any required 30 dimensions, containing a perforated bottom, or a filter vessel having a chamber, as described in my Specification dated January Fourteenth, One thousand eight hundred and seventy-five, NumberJLSO, may be used and placed at any convenient place in the yard. The clear water run from the filter bed may be conducted into the closet, instead of direct 35 into the drain. # Collecting and removing these soapy, greasy, and oily [waters so that they do not pass into the drains and sewers will considerably reduce