Filtration Plant for Steubenville

Filtration Plant for Steubenville

A filtration plant is to be built for the use of Steubenville, O. It will cost approximately $250,000. The administration building will be three stories high and its dimensions 38 by 80 feet. It will be of brick, with stone trimmings. On the left of the entrance will be the pumping machinery, which will be in a pit 12 feet below the lobby floor—an arrangement which keeps the pumps always under the water level in the reservoir whereby the necessity of priming will be avoided. In this pit will be a modern electrical equipment, comprising pumps to supply La Belle View and other high districts, two sets of wash pumps and a switchboard. Ample room will be left for additions when such are called for. On the second floor of this left wing will be the offices and the bacteriological and chemical laboratory. In the right wing will he the coagulating apparatus, the lower floor being devoted to the storage of the necessary materials for coagulation, which will he hoisted by an electric lift to the third floor, where the coagulating vats will be placed. I he contents of these vats will be kept constantly agitated by continually running paddles driven by electric motors. The filter building will be entered from the lobby. It is to be a long and lofty room, with i concrete operating platform 12 feet wide extending through the midtile and flanked by three filters, each with a capacity of 1,000.000 gallons daily. These tanks are rectangular and are of concrete They will be supported on a system of strainers and pipes, which will collect the water after it has passed through the filtering medium, consisting of three feet and onehalf of cleaned and graded sand and gravel. On the operating platform will be mounted levers controlling the hydraulically operated valves, which m their turn control the filters. On the same platform also will he gauges and sampling devices showing the operating condition and efficiency of each filter bed. Below the operating floor will be a gallery containing the valves and piping that will convey the filtered water to a filtered-water well beneath. The silt, impurities and bacteria caught after the filtering medium has been cleaned (which will he once in every 24 hours) by forcing filtered water up through it, will be carried into a sewer. Adjoining the filter building will be a reinforced concrete settling basin, with a capacity of 1,500.000 gallons in which the river water will he allowed to settle. The basin will be divided into two several parts, a mud basin and mixing compartment, in which the coagulant will be added, and a settling basin proper It will be capable of enlargement.

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