FILTRATION IN A NEW LIGHT.

FILTRATION IN A NEW LIGHT.

The general manager of a well known water company professes surprise at those who blame the water his company supplies for an outbreak of typhoid fever, although it is well known that the water furnished is thoroughly polluted. He insists that, owing to his intelligent system of sedimentation which he adds is cheap, but refrains from calling nasty—everything hurtful is removed from the water. Sedimentation, he says, is Nature’s method of purifying and clarifying. He adds that the “most any system of filtration will do for a public water supply is to take the solid matter out of the water. An ample and intelligent system of sedimentation will do this in a more or less satisfactory way just in proportion to the size and number of settling basins employed. Foreign matter in water held in solution cannot be filtered out either by mechanical or sand filtration. Here the process of Nature by proper exposure of the water to the action of the sun and atmosphere in connection with a series of overflowing settling basins will do more for the water than can be done in covered sand filtration beds from which the free action of the sun and atmosphere has been excluded by roofing them in. Nature does her work well by an expert process, and it would be well for all filtration experts to work along the line of Nature’s method of purifying water by elimination, sedimentation, and at the same time thorough and complete aeration.”

The general manager of a well known water company professes surprise at those who blame the water his company supplies for an outbreak of typhoid fever, although it is well known that the water furnished is thoroughly polluted. He insists that, owing to his intelligent system of sedimentation which he adds is cheap, but refrains from calling nasty—everything hurtful is removed from the water. Sedimentation, he says, is Nature’s method of purifying and clarifying. He adds that the “most any system of filtration will do for a public water supply is to take the solid matter out of the water. An ample and intelligent system of sedimentation will do this in a more or less satisfactory way just in proportion to the size and number of settling basins employed. Foreign matter in water held in solution cannot be filtered out either by mechanical or sand filtration. Here the process of Nature by proper exposure of the water to the action of the sun and atmosphere in connection with a series of overflowing settling basins will do more for the water than can be done in covered sand filtration beds from which the free action of the sun and atmosphere has been excluded by roofing them in. Nature does her work well by an expert process, and it would be well for all filtration experts to work along the line of Nature’s method of purifying water by elimination, sedimentation, and at the same time thorough and complete aeration.”