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Design and Specifications 1 �j lard in the nation, and perhaps the world. It is 500 times more stringent than the equivalent 1� standards set by the World Health Organization. After system stabilization (about ten days after startup, depending upon inflow strength and volume), discharged effluent is warranted to be less than 10 mg/L biochemical oxygen demand, less than 10 mg/L suspended solids, and less than 2.2 coliform organisms per 100 ml. The design goal of the system for this project shall be not detectable for both biochemical oxygen demand and suspended solids and less than zero coliform organisms. Copies of independent laboratory reports on discharge from a Bio-Pure system sand a copy-of the AquaClear/Bio-Pure warranty are in- cluded as part of this document. AquaClear warrants that this system will meet all requirements set forth in the NPDES permit. In all Bio-Pure systems, peak flows of as much as 150% above average are accommodated due to the batching process. Combined with the 1,232-gallon flow equalization and reserve capacity built into the aeration chamber, a 2,000-gall6n front-end aerated buffer tank is included in the system design. The 2,000-gallon buffer tank would be located adjacent to the treatment plant and be used as a combination flow-equalization reservoir and lift station to feed the treatment/reclamation plant. ; Selecting peak load time/volume using NSF Standard 40 indicates 35% of daily flows between 6 a.m. and 9 a.m., 25% of daily flows between 11 a.m. and 2 p.m., and 40% of daily flows between 5 p.m. and 8 p.m. Using 5,000 gallons_ {maximum design flow volume) as the daily influent flow, we have the following: F 6 a.m. to 9 a.m. = 1,750 gallons 11 a.m. to 2 p.m. = 1,250 gallons 5 p.m. to.8 p.m. = 2,000 gallons The critical time is 5 p.m. to 8 p.m. From 6 a.m. to 9 a.m., the system will process 585 gallons of effluent from the 1,750 gallons of influent. This leaves 1,165 gallons, in addition to the 1,250 gallons of waste introduced between the hours of 9 a.m. to 5 p.m., for a total of 2,415 gallons to process prior to the next peak load at 5 p.m. Between those hours, 4.8 batches of 325 gallons per batch will occur. This means 1,560 of the total 2,415 gallons will be processed, leaving 855 gallons unprocessed and which will have to be stored, thus justifying a minimum of 1,000-gallon buffering volume. A 2,000-gallon buffer,tank is planned. Because this project is not complete, no actual data exist for waste flow strengths. Assumptions have been made based on average conditions of existing similar establishments. The Bio-Pure batch treatment process design for this project is based on 24-hour maximum design flows of 5,000 gpd. The maximum design BODS loading is 10.8 lbs. An optional aerator may be used in the buffer tank to pretreat the incoming waste to a level less than 300 mg/L prior to its entering the main plant aeration chamber. The Bio-Pure process is not subject to upset by flow variations because a constant quantity;of waste is treated in each batch. For this project, the basic Bio-Pure Model 50EFO has a hydraulic flow oversize capacity of 600 6 gpd. Adding the 1,232-gallon reserve capacity which is designed into the aeration chamber and 2