A system to pacify the inflow into circular or polygonal settling basins, in a sewage treatment assembly, has a cylindrical or polygonal component at the central inflow which flows over its surface into the basin (1). The component is self supporting, with a mantle (2) and one or more ...
The remaining lamps in the series serve as a ballast resistance and will not be heated to incandescence. During the life of the lamp (i. e. filament life) there are indications that the magnesium reduces some of the alkalies which in turn pacify the gas thus prolonging filament life. ...