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Ernironmental Conditioners Inc <br /> <br />208 N.E.63rtl Sreet <br />Vancouver, ~vasn~ngion 98665 <br />Pone 705~696~aA66 ~-- ~---~-~ <br />Tel9 c:360608 <br />Poniantl Pnone:503220-629t <br />HONEY EXTENDED AERATION S=~9AioE PLAATT <br />OPERATIONAL DESCP,IPTION <br /> <br />The ECI Honey Plant is a biological treatment system for biode- <br />,. gradable wastes using the extended aeration modification of the <br />activated sludge process. This process combines the features <br />of complete treatment with low sludge production. ECI uses the <br />novel technique of turbine mixing plus sparge diffuser aeration, <br />which give significantly higher or.}rgen transfer rates than pro- <br />; vided by diffused aeration systems. This aaproach allows higher <br />• volumetric BOD loadings and smaller aerator volume. It also <br />~; gives independent control of aerator mixinc and aeration which <br />~ provides accurate control of aeration over varying waste load <br />1. <br />conditions without sacrificing good mixinc. Cost savings are <br />r- <br />~. realized through lower air costs, smaller blower sizes and smaller <br />~-- aerator size. <br />L <br />L The system shown is designed to handle the specified design flow <br />of sewage. Sewage enters the system by first passing through a <br />bar screen and optional comminutor to reduce the size of incoming <br />~ solids. It then falls into the flow ecualization basin where a <br />II diffused air system mixes and aerates the sewage. This tank ab- <br />it . sorbs and evens out hourly peaks of flow, resulting in a constant <br />~. flow rate through the plant. Dual transfer pumps discharge at a <br />S =.:~ <br />~- constant rate into the aeration basin. <br />