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--V� <br /> INTERNATIONAL <br /> AERATION SYSTEM <br /> Ib. Oz per ft.3 of air: 0.0175 <br /> Efficiency per foot of immersion depth: 0.85% <br /> Air Flow required: 190 SCFM <br /> 2.6 SCFM/Ib BODS/day <br /> Air flow for each coarse bubble diffuser(TFA-3): 6 SCFM <br /> No. of diffusers: 31 <br />- 2.4 DAF <br /> No. of DAF units: 1 <br /> Flow capacity: 50 gpm <br /> Dimensions: <br /> 42 inch <br /> Length: <br /> Width: 42 inch <br /> Height: 84 inch <br /> Actual surface area: 12.3 ft <br /> Actual hydraulic loading: 85.0 g <br /> Actual solid loading: 0.18 Ib/d/ftd/ftZ <br /> 2.5 OF MEMBRANES <br /> 1 <br /> No.of units <br /> Membrane housing per unit 4 <br /> Element per membrane housing 1 <br /> Membrane area per element 40 m2 <br /> Total number of elements 4 <br /> 2.5 CHLORINE CONTACT TANK <br /> No. of tank 1 <br /> Water depth 5.5 ft <br /> Contact time, t 120 min <br /> Required tank volume 6,250 gallons <br /> Actual tank volume 6336 gallons <br /> Dimensions <br /> Length 22.0 ft <br /> Width 7 ft <br /> Height 6.5 ft <br /> No. of chlorinator 1 <br /> Chlorinator capacity 10 Ib/d <br /> III. AEROBIC SLUDGE DIGESTER <br /> 3.1 SLUDGE DIGESTER <br /> No. of Tanks: 1 <br /> Water depth: 5.5 ft <br /> Operational volume of each tank: 2,674 gallons <br /> Plant Design Appendix-i-12 of 18 08/22/07 <br />