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Rose-Hulman CE 489 - Study Notes

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Final Report:Alternative Wastewater Treatment DesignsforGreen Acres SanitationKokomo, IndianaApril 2003DISCLAIMERThe contents of this report were prepared by senior civil engineering students in the design andsynthesis class of Rose-Hulman Institute of Technology. Pioneer Consulting Group is a fictitiouscompany created by seniors Bryce Gast, Derek Hughes, David Korman, and Wendy Packard forthe purpose of this class. We feel confident in our work as students, however you should beaware that we are not registered professional engineers. All material presented herein should bereviewed and approved by a professional engineer prior to construction.Executive SummaryMr. Dennis Jusko owns the Green Acres Sanitation wastewater treatment plant located inKokomo, Indiana. This plant is in the middle of the Green Acres subdivision of 203 homes, and agolf course surrounds the site. The plant is permitted to handle 100,000 gallons of wastewater perday. Currently, the plant is not meeting state standards of water quality for the treated water itreleases into Wildcat Creek. The design considerations for this project included assurances thatthe effluent (treated wastewater) meets all Indiana Department of Environmental Managementand Environmental Protection Agency standards for water quality. In addition, Mr. Jusko hasrequested that innovative technologies be taken into consideration, and green engineeringpracticed wherever possible.After evaluating many aspects of the site and wastewater treatment plant, Pioneer determined thatthe current plant was not meeting standards, and probably could not be upgraded to meet thesestandards cost-effectively. In order to meet the treatment needs of this subdivision, Pioneer hascompleted two designs: a subsurface constructed wetland and a package wastewater treatmentplant.The subsurface constructed wetland will receive effluent from a primary clarifier (40 ft. x 10 ft. x10 ft. deep tank), and will treat the wastewater well enough to meet current standards. Achlorination system will follow the wetland area. The surface area of the wetland will beapproximately 4.7 acres, with a 1-foot depth and a 5.9-day detention time. Cattails will be themain aquatic plant utilized in the wetland for treatment.A Bioclere package treatment plant was also investigated. This plant also receives effluent froma primary clarifier (same size), and operates like a trickling filter. This plant would also require adisinfection system to be placed after the treatment. The Bioclere unit will consist of 5 units,which operate at 20,000 gallons per day each.Pioneer Consulting Group recommends that the current wastewater treatment plant be replacedwith a Bioclere wastewater treatment plant. This recommendation is based on several factors,including upgrade ability, availability of warranty, size of required area, and cost. The cost of theconstructed wetland is estimated at $449,600. The cost of the Bioclere unit is $495,600. Theseprices include the primary clarifier and construction, but do not include disinfection processes.Table of Contents1. Project Description .........................................................................................................Page 12. Design Requirements......................................................................................................Page 32.1 Client Requests ................................................................................................Page 32.2 Constraints .......................................................................................................Page 32.3 Deliverables.....................................................................................................Page 43. Project Approach ............................................................................................................Page 54. Design Solution ..............................................................................................................Page 64.1 Site Assessment ...............................................................................................Page 64.2 Existing Plant Assessment...............................................................................Page 74.3 Applicable Codes and Regulations..................................................................Page 74.4 Innovative Technology ....................................................................................Page 94.5 Assessment of Design Alternatives.................................................................Page 94.6 Design Alternative #1......................................................................................Page 104.7 Design Alternative #2......................................................................................Page 114.8 Design Alternative #3......................................................................................Page 12 4.9 Recommendation.............................................................................................Page 136. References ......................................................................................................................Page 14AppendicesA - Site Assessment...............................................................................................Page A-1B - Existing Plant Assessment...............................................................................Page B-1C - Applicable Codes and Regulations..................................................................Page C-1D - Design Alternatives .........................................................................................Page D-1E - Kokomo City Sewer Connection......................................................................Page E-1F - Primary Clarifier Design..................................................................................Page F-1 G - Equalization Basin Design...............................................................................Page G-1H - Constructed Wetland Design...........................................................................Page H-1 I - Bioclere Package Plant Design..........................................................................Page I-1Figures & TablesFigure 1: Aeration Tank ....................................................................................................Page 1Figure 2: Map of Green Acres


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