. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. 1847.] THE CIVIL ENGINEER AND ARCHITECT'S JOURNAL. 69 tanks or reservoirs above mentioned. Fourthly, in the use and applica- tion of chemical agents for the purpose of precipitalins the solid aDimal and matter contained in sewage water, and also for the purpose of absorbing and combining with the gases evolved in such sewage water and the animal and vegetable matters contained therein or precipitated' therefrom. The first part of the invention relates to the constr
. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. 1847.] THE CIVIL ENGINEER AND ARCHITECT'S JOURNAL. 69 tanks or reservoirs above mentioned. Fourthly, in the use and applica- tion of chemical agents for the purpose of precipitalins the solid aDimal and matter contained in sewage water, and also for the purpose of absorbing and combining with the gases evolved in such sewage water and the animal and vegetable matters contained therein or precipitated' therefrom. The first part of the invention relates to the construction of tanks or reservoirs. Fig. 1 is a transverse vertical section, and Fig. 2 a plan, of three tanks or reservoirs, in which the mass of sewage is to be collected ⢠also a section of buildings to be erected over the tanks or reservoirs in â which the vapours and gases arising from the tanks are to be collected and condensed, or combined with other substances. A, the extremities of the sewers, through which the sewas matter is to pass, communicating with the tanks B, in such a manner that the sewage water will run freely into them. The sewers A have sluices C, opened or closed at pleasure, so as to allow or prevent the flow of the sewage water and matter into the' tanks as may be desired. The tanks or reservoirs, B, may be constructed of brick, stone, or ether fit materials, and of any number, form, and depth, as may be found most suitable and convenient, according to their local position and the quantity of sewage matter to be treated or operated upon. It is preferred that each tank should be made in the form of a parallelogram, the sides to â¢which shall be three times the length of the ends, and varying in depth from twelve to lifteen feet. The bottoms of these tanks or reservoirs must be so constructed as to drain down to some one or more places where a filter or filters is or are to be placed for draining and drying the solid mat- ter in the tanks, and ivith prop
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