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<br />. <br /> <br />1578 <br /> <br />. <br /> <br />D. "Hardware": <br /> <br />. <br /> <br />chlorinator, Fisher-Porter, series 70C1730 <br />comminutor, Worthington, 20-C-6 <br />final clarifier, Linkbe1t primary "RBC Clarifier" 65 ft. <br />diameter <br />aeration compressors, Sutorbi1t #812, 75 hp motor 1303 CFM @ <br />6 psi <br />digestor compressor, 40 hp motor, 400 SCFM <br />grit collector, Linkbe1t, 1M <br />sludge transfer pumps, Weinmau, 300 gpm,@ 20 ft., 5 hp <br />incinerator, Ca1cinator Corp, Model Cl-50-A <br />lift station, Can-Tex, 750 gpm @ 33 ft., 15 hp <br />digestor heaters, 2 natural gas salamanders <br /> <br />. <br /> <br />. <br /> <br />IV. PLANT OPERATION <br /> <br />A. Process Variables: sludge wasting rate <br /> <br />. <br /> <br />B. Residuals Handling: Trash, rags and grit are incinerated <br />at site. Waste sludge is dried and used on parks. Drying <br />bed supernatant is being pumped to irrigation ditch. <br /> <br />. <br /> <br />C. Plant Operation <br /> <br />1. Process or equipment problem history: Aeration tank ef- <br />fluent dosed with aluminum sulfate to improve f1ocu1ation <br />and final sedimentation. <br /> <br />Aerobic digestors are heated and lime is added for pH con- <br />tro1. <br /> <br />. <br /> <br />The release clutch on the clarifier failed last winter <br />(1974) and the surface sweeper was broke by the ice. <br /> <br />. <br /> <br />The aerobic digestors are going to be covered. <br />Light floc is going over weir. <br /> <br />Currently the operator is building a sludge depth in- <br />di catoL <br /> <br />. <br /> <br />Air diffusers are being added to the aeration tank to <br />produce a "tapered aeration" effect. <br /> <br />2. Record-keeping practices: follows operation manual <br /> <br />. <br /> <br />133 <br />