. Water & sewage works . areful study of sewagepurification for Pasadena, I would like tomake the following suggestions publicthrough your pages. They may possiblybe of use, especially where the climate isless equable than here. These suggestions apply to a filteringbed of the usual construction for the puri-fication of sewage, consisting of an in- material, an enclosed ventilated sprayingand darkening chamber in which saidsprinklers are located as shown in accom-panying drawing. The purposes of theproposed chamber are: a.—To maintainthe desired equability of temperature onthe surface of the b
. Water & sewage works . areful study of sewagepurification for Pasadena, I would like tomake the following suggestions publicthrough your pages. They may possiblybe of use, especially where the climate isless equable than here. These suggestions apply to a filteringbed of the usual construction for the puri-fication of sewage, consisting of an in- material, an enclosed ventilated sprayingand darkening chamber in which saidsprinklers are located as shown in accom-panying drawing. The purposes of theproposed chamber are: a.—To maintainthe desired equability of temperature onthe surface of the bed of filtering ma-terial; b.—To regulate the air ventilationof the bed: c.—To control the admissionof sunlight on the surface of the bed;d.—To protect the bed against any unusualwashing by rain, the object of the cham-ber being to maintain conditions bestsuited to the bacterial growths necessaryfor purification of the sewage-eSIuent. <f^ --/tftNTlLAToR . — PRoPt^ AR SUPPLY VouSt-C WJJ. ftuNtPCTC S^OCKkfi-AiDa 1 teasel. To CS , f LOOh. ..•\»^c««c.,T P**i.^et ,.if*l:i. f DRAINAGElAlR wAntA «ftL CAN A U. clined concrete floor on which is a seriesof parallel rows of drain tile over whichIs a bed of broken rock or other mineralmaterial in pieces of graded sizes, andplaced above the broken material aresprinklers or other means of applying thesewage effluent of the Imhoff settlingtanks in a regulated and approximatelyeven manner over the entire surface ofthe bed. 1. Over the bed of crushed mineral SUGGESTION for ventilating, warmingand darkening filter beds to supply uni-form conditions and stimulate baeterialaction. 2. In the ventilated spraying anddarkening chamber, an automatic thermoregulating device for operating a ventilat-ing valve or damper. The purpose is toopen the valve further when the chamber October, 1913 354 MUNICIPAL ENGINEERING is warmer than necessary and to close itfurther when the temperature of thechamber falls bel
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectsewerage, bookyear191
