Specification of Benjamin Green : storing and treating sewage.

  • Green, Benjamin.
Date:
1874
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Benjamin Green : storing and treating sewage. Source: Wellcome Collection.

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    2 A.D. 1873.—N° 3833. Provisional Specification. Green's Improvements in Storing and Treating Sewage. The air necessary for feeding the fire is let into the building through small apertures at the opposite end to that where the shaft is placed, so that such air has to traverse the whole length of the building, and so aids in causing the flow of the gases to the shaft. The fuel for the said fire may be either coal, mineral oil, faggotts, 5 ordinary firewood, or whatever may be most conveniently or economi¬ cally used according to the locality in which the manure pits are placed. These pits are constructed to receive the sewage from any town, village, or area of land through a main supply pipe, which may be cut off from the pits when required by a sluice, and when 10 more than one pit are constructed side by side the main supply pipe may open into a supply reservoir running the whole length of the series of pits, and communicating with each by a sluice, so that one pit may be filled without the others. These pits are also constructed at such a level that the liquid portion of the sewage may be run off 15 into some adjacent river, sea, or other place destined to receive it, whilst the soil is left behind to be used for manure as required. When this liquid is run into a sea or river I prefer to have the pits at such a level that they may be emptied at or near high water, so that all will be carried away as the tide runs out. For the purpose 20 of separating the liquid and solid portions of the sewage these pits are constructed with double walls along one side, the inner wall or partition being lower in height than the other walls, so that on the liquid rising to the height of such partition wall it will flow over the same into the channel formed between the two walls whence it is 25 let out as required by a sluice. The soil when required for use is taken away in air-tight carts or tanks, such carts or tanks being filled through pipes of proper size inserted in the front or other wall of the pit near the bottom thereof, which pipes are provided with means for being closed when not in 30 use, and communicate with the said air-tight carts or tanks whilst such are being filled by flexible tubing, the carts or tanks being closed air-tight wiien full by any suitable means. If the soil should accumulate faster than required for use in the immediate neighbourhood it is let into air-tight tanks suitably situated 35 for that purpose, and dried by any suitable means, the noxious gases arising therefrom during such process being led into the said shaft