Sewage disposal . Fig. 95. Fiddian Distributor for Rectangular Beds, TechnologyExperiment Station, Fig. 96. Scott-Moncrieffs Revolving Distributor at Birmingham. 338 TREATMENT IN TRICKLING OR PERCOLATING BEDS ments at Birmingham. It consists of a large open trough revolv-ing about a vertical supply pipe at its center and supported on acircular rail at the periphery. The sewage overflows from a smallside trough divided into sections, to which it is admitted from themain trough in amounts proportional to the circular path coveredby each section. The propelling power is furnished by an o
Sewage disposal . Fig. 95. Fiddian Distributor for Rectangular Beds, TechnologyExperiment Station, Fig. 96. Scott-Moncrieffs Revolving Distributor at Birmingham. 338 TREATMENT IN TRICKLING OR PERCOLATING BEDS ments at Birmingham. It consists of a large open trough revolv-ing about a vertical supply pipe at its center and supported on acircular rail at the periphery. The sewage overflows from a smallside trough divided into sections, to which it is admitted from themain trough in amounts proportional to the circular path coveredby each section. The propelling power is furnished by an oilengine carried on the outer end of the trough. The distributioneffected is excellent, but the weight of the apparatus is great andthe cost of operation very high. At Hanley the distributor for aquarter-acre bed weighed 12 tons; a 45-lb. bridge rail aroundthe filter was worn out in two years and a half; and the cost ofrenewal and supervision amounted to ten dollars per milliongallons of sewage distributed. In the method finally adoptedat Hanley, the distributor itself is a perforated iron pipe movedba
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherlondo, bookyear1919
