A digest of facts relating to the treatment and utilization of sewage / by W.H. Corfield.

  • Corfield, W. H. (William Henry), 1843-1903.
Date:
1870
Catalogue details

Licence: Public Domain Mark

Credit: A digest of facts relating to the treatment and utilization of sewage / by W.H. Corfield. Source: Wellcome Collection.

    114/318 (page 84)
    f pounds of the ordinary sandy loam procurable at Value of Madras. The order of eligibility of various soils is wStaS* stated to be the following :—1, rich garden mould ; 2, earth. peaty soils ; 3, black cotton soils ; 4, clays; 5, stiff clay loams; 6, red ferruginous loams; 7, sandy loams ; 8, sands. Pug-mills. Contrivances called pug-mills have been esta- blished for mixing thoroughly the earth and excrement. Opinions seem to differ very greatly as to the efficiency of the working of these mills, but Dr. Ranking con- cludes that efficient supervision, in fact, ensures all that is contemplated by the use of the mill, while neglect entails failure and needless expenditure. Macdou A considerable amount of evidence was brought gaii's Pow- forward to show that Macdougall's disinfecting powder, urine. which costs £10 a ton, may be used with advantage for the deodorization of the urine, the dry earth being only supplied to the latrines. Dr. Stuart Clarke states that six per cent, is sufficient to deodorize and maintain in a state of freedom from ill odour the solid and fluid excreta of latrines and urinals; and he shows, with regard to urine alone, the total annual quantity for 1,000 men, plus six per cent, for disinfecting fluid, comes to 530,3501bs.; whereas in the earth process the amount to be removed would be no less than 3,011,2501bs., or 1,344 tons 1 Dr. Ranking, towards the end of his Report, states sanitary that there is abundant evidence to prove that the benefits introduction of the dry earth system has effected a from earth lllui <> -. . c i closets. marked change in the sanitary condition or barrack and hospital privies and urinals, and that it has exerted a most beneficial influence upon the health of the