ARMY UFGS-46 07 53 13-2011 PACKAGED WASTEWATER TREATMENT EQUIPMENT AERATION.pdf

1、USACE / NAVFAC / AFCESA / NASA UFGS-46 07 53.13 (February 2011)-Preparing Activity: NAVFAC Replacing without changeUFGS-44 42 13.00 20 (November 2009) UFGS-44 42 13.00 20 (January 2007)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated April 2011*SECTION TABLE OF CON

2、TENTSDIVISION 46 - WATER AND WASTEWATER EQUIPMENTSECTION 46 07 53.13PACKAGED WASTEWATER TREATMENT EQUIPMENT, AERATION02/11PART 1 GENERAL1.1 REFERENCES1.2 SUBMITTALS1.3 FACTORY INSPECTION1.4 TREATMENT AND PAINTING1.5 QUALITY ASSURANCE1.5.1 Sewage Treatment Plant Layout Drawings1.5.2 Sewage Treatment

3、Plant Component Drawings1.5.3 Diffuser Layout Drawings1.5.4 Mechanical Aerator Drawings1.5.5 Excavation and Backfilling1.5.6 List of Prior Installations1.5.7 Sewage Treatment Plant Performance Test Reports1.5.8 Package Sewage Treatment Test Reports1.5.9 Tank Tests1.5.10 Electrical Control System1.5.

4、11 Diffusers1.5.12 Mechanical Aerators1.5.13 Materials Not Labeled or CertifiedPART 2 PRODUCTS2.1 GENERAL REQUIREMENTS2.2 SEWAGE TREATMENT PLANT2.3 CONCRETE WORK2.4 LUBRICATION2.5 MATERIALS AND EQUIPMENT2.5.1 General2.6 TANKS2.6.1 General2.6.2 Aeration Tank2.6.3 Settling Tank2.6.4 Aerobic Digester2.

5、6.5 Chlorine Contact TankSECTION 46 07 53.13 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.6.6 Structural Requirements for Steel Tanks2.6.7 Special Requirements for Circular Plant with Concentric Inner Tank2.7 AERATION EQUIPMENT2.7.1 Genera

6、l2.7.2 Diffused Air Aeration Equipment2.7.2.1 Air Diffusers2.7.2.2 Diffuser Holder Assembly2.7.2.3 Air Diffusers in Aerobic Digester2.7.2.4 Air Blower Assembly2.7.2.5 Piping2.7.3 Mechanical Aeration Equipment2.7.3.1 Drive Assembly2.7.3.2 Impeller Shaft2.7.3.3 Impeller2.7.3.4 Shroud2.7.3.5 Draft Tube

7、2.7.3.6 Mechanical Aerator Supports, Walkways and Rails2.8 SLUDGE AND SCUM COLLECTION AND TRANSFER EQUIPMENT2.8.1 General2.8.2 Sludge Transfer Pumps2.8.3 Mechanical Sludge Collection Equipment2.8.3.1 Chain-and-Flight Type Sludge Collector2.8.3.2 Traveling Reciprocating Type Sludge Collector2.8.3.3 R

8、otating Type Sludge Collectors2.9 ACCESSORIES2.9.1 Scale2.9.2 Chlorine Gas Manifold2.9.3 Flexible Connector2.9.4 Water Piping2.9.5 Solution Piping2.9.6 Vent Tubing2.9.7 Signal Tubing2.9.8 Diffuser2.9.9 Housing2.10 PIPING2.10.1 Piping Systems2.10.1.1 Air Piping2.10.1.2 Sludge Return, Waste Sludge and

9、 Scum Return Piping2.10.1.3 Froth Control System Piping2.10.1.4 Miscellaneous Piping2.10.2 Piping System Materials2.10.2.1 Steel Piping2.10.2.2 Cast Iron Piping2.10.2.3 Valves2.10.2.4 Flexible Sleeve-Type Mechanical Couplings2.10.2.5 Hangers and Supports2.11 FLOW MEASURING EQUIPMENT2.11.1 V-Notch We

10、ir2.11.2 Flow Meter2.11.2.1 In-Stream Float2.11.2.2 Float and Cable2.11.2.3 Transmitting Recorder2.11.2.4 Transmitting Recorder-Totalizer-Indicator2.11.2.5 Charts for Recorder2.12 ELECTRICAL CONTROL SYSTEM COMPONENTS2.12.1 General2.12.2 Sequence of Operation2.12.3 Electrical Control System Enclosure

11、SECTION 46 07 53.13 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.12.4 Circuit Breakers2.12.4.1 Main Circuit Breaker2.12.4.2 Branch Circuit Breakers2.12.5 Starters, Contactors, and Reset Buttons2.12.6 Selector Switches, Pushbuttons, and Pil

12、ot Lights2.12.7 Circuit Controls2.12.8 Alarm2.12.9 Electrical Wiring2.13 APPURTENANCES AND ACCESSORIES2.13.1 Walkways, Platforms, and Bridges2.13.2 Access Stairway Access Ladder2.13.3 Handrails2.13.4 Raw Sewage Recirculation Box2.13.5 Plant Influent Flow Division Box2.13.6 Aeration Tank Influent Dis

13、tribution Channel2.13.7 Sludge Division Box2.13.8 Settling Tank Effluent Weir and Scum Baffle2.13.9 Mixer for Return Sludge Mixing2.13.9.1 General2.13.9.2 Drive Assembly2.13.9.3 Impeller and Impeller Shaft Coupling2.13.10 Anchor and Connection Bolts2.13.11 Plant Anchorage2.14 UTILITIES SERVICE CONNE

14、CTIONS2.14.1 Water Service2.14.2 Electrical Service2.15 CATHODIC PROTECTION2.16 TREATMENT AND PAINTING2.17 ELECTRICAL REQUIREMENTS2.18 SOURCE QUALITY CONTROL2.18.1 Mechanical Aerator2.18.2 Fine Bubble Diffusers2.18.2.1 Porous Ceramic Tube Diffusers2.18.2.2 Porous Plastic Tube Diffuser Tests2.18.3 Co

15、arse Bubble Diffusers2.18.3.1 Non-porous Nozzle Diffuser Tests2.18.4 Air Blower Tests2.18.5 Operation Tests for Electrical Control PanelPART 3 EXECUTION3.1 DESIGN3.2 SLUDGE COLLECTION AND TRANSFER SYSTEM AND RETURN SLUDGE MIXING3.2.1 Sludge Transfer3.2.2 Return Sludge Mixing3.2.3 Scum Collection and

16、 Transfer3.2.3.1 Scum Collection in Hopper Bottom Settling Tanks3.2.3.2 Scum Collection in Circular Settling Tanks3.2.3.3 Scum Collection in Rectangular Settling Tanks3.2.3.4 Scum Transfer3.2.4 Supernatant Transfer3.3 AIR BLOWER ASSEMBLY3.3.1 Air Blower3.3.1.1 Bearing3.3.1.2 Couplings for Centrifuga

17、l Blowers3.3.2 Blower Driver3.3.3 V-belt Drive for Positive Displacement Type Blower3.3.4 Air Blower and Blower Driver Housing3.3.5 Air Blower AccessoriesSECTION 46 07 53.13 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.3.5.1 Air Filter and

18、 Air Filter Gage3.3.5.2 Butterfly Valve3.3.5.3 Pressure Relief and Unloading Valve3.3.5.4 Check Valve3.3.5.5 Snubber3.3.5.6 Expansion Joints3.3.5.7 Pressure Gage3.3.5.8 Thermometer3.3.5.9 Guards3.4 FROTH CONTROL SYSTEM3.4.1 General3.4.2 Froth Control System Pump3.4.2.1 Submersible Pump3.4.2.2 Centri

19、fugal Pump3.4.3 Spray Nozzles3.4.4 Discharge Strainer3.4.5 Piping and Valves3.5 HYPOCHLORINATOR ASSEMBLY3.5.1 General3.5.2 Hypochlorinator3.5.2.1 Diaphragm Type3.5.2.2 Peristaltic Type3.5.2.3 Motor3.5.3 Accessories3.6 CHLORINATOR ASSEMBLY3.6.1 General3.6.2 Chlorinator3.7 COMMINUTOR AND BAR SCREEN UN

20、IT3.7.1 General3.7.2 Comminutor3.7.2.1 Comminutor Drive3.7.2.2 Cutting Elements3.7.2.3 Bearings3.7.2.4 Lubrication3.7.2.5 Anchorage3.7.3 Bar Screen3.7.4 Comminutor Chamber3.8 SCREENING BASKET3.9 INSTALLATION3.9.1 General3.9.2 Manufacturers Representative3.9.3 Sequence of Operations3.9.4 Matchmarking

21、3.9.5 Qualification of Welders3.9.6 Piping3.9.7 Settling Tank Floor3.9.8 Repair Painting3.9.9 Adjustments3.10 FIELD TESTS AND INSPECTIONS3.10.1 General3.10.2 Alignment and Leveling3.10.3 Plant Equipment3.10.3.1 Comminutor Tests3.10.3.2 Mechanical Aerator Tests3.10.3.3 Blower-Driven Assembly Operatio

22、n Tests3.10.3.4 Diffusers3.10.3.5 Hypochlorinator Tests3.10.3.6 Chlorinator Tests3.10.3.7 Air Lift PumpSECTION 46 07 53.13 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.10.3.8 Flow Measuring Equipment3.10.3.9 Electrical Control System Tests

23、3.10.4 Operating Instructions3.10.5 Plant Start-Up3.11 WORK INCLUDED UNDER OTHER SECTIONS3.12 DELIVERY AND STORAGE- End of Section Table of Contents -SECTION 46 07 53.13 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA /

24、 NASA UFGS-46 07 53.13 (February 2011)-Preparing Activity: NAVFAC Replacing without changeUFGS-44 42 13.00 20 (November 2009) UFGS-44 42 13.00 20 (January 2007)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated April 2011*SECTION 46 07 53.13PACKAGED WASTEWATER TREATME

25、NT EQUIPMENT, AERATION02/11*NOTE: This guide specification covers the requirements for package sewage treatment plants of the extended aeration type, step aeration type, and complete mixing type.Adhere to UFC 1-300-02 Unified Facilities Guide Specifications (UFGS) Format Standard when editing this g

26、uide specification or preparing new project specification sections. Edit this guide specification for project specific requirements by adding, deleting, or revising text. For bracketed items, choose applicable items(s) or insert appropriate information.Remove information and requirements not require

27、d in respective project, whether or not brackets are present.Comments, suggestions and recommended changes for this guide specification are welcome and should be submitted as a Criteria Change Request (CCR).*NOTE: These plants are intended for treatment of domestic sewage only. Special consideration

28、 must be given to sewage containing industrial wastes. This specification is prepared from an uncoordinated draft dated June 1975 and was generally current as of that date. The specifier is warned to use this specification with caution and to confirm all applicable publications and any requirements

29、thought to be questionable. Also, Section 11336, “Rectangular Chain-and-Flight Clarifier“ and Section 11337, “Rectangular Reciprocating Traveling-Bridge Clarifier“ should be consulted for more up-to-date requirements for all drives and for specific components of mechanical sludge collection.*SECTION

30、 46 07 53.13 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*NOTE: On the project drawings, show:1. Type of plant: (Extended aeration, Step Aeration, or Complete Mixing).2. Design flow.3. 5-day BOD loading.4. Suspended solids loading.5. Whethe

31、r a comminutor is needed for plants 1.09 L/s 25,000 GPD or less in size.6. Whether mechanical aerator should be allowed.7. Whether plant should be concrete only, steel only, or either concrete or steel at Contractors option.8. Whether piling is required for foundations.9. Whether hypochlorinator or

32、whether chlorinator should be used for plants in 4.38 to 6.57 L/s 100,000 to 150,000 GPD range.10. Whether raw sewage recirculation box (recirculation to pumping station) is needed.11. Whether plant is to be of aboveground or belowground construction.12. Seismic loading (if necessary).13. Electric p

33、ower characteristics for motors.14. Whether automatic operation of air lift pumps should be required.15. Wind load and ice load for rotating sludge collector.16. Organic loading (5-day BOD) if other than that given in the text.17. Total suspended solids if other than given in the text.18. Size of hy

34、pochlorite mixing tank if larger capacity than 113.4 L 30 gallons is needed.19. Size of hypochlorite solution tank if larger capacity than 208 L 55 gallons is needed.20. Whether, for extended aeration type plant, eventual conversion to step aeration type is anticipated.*SECTION 46 07 53.13 Page 7Pro

35、vided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-PART 1 GENERAL1.1 REFERENCES*NOTE: This paragraph is used to list the publications cited in the text of the guide specification. The publications are referred to in the text by basic designation only and l

36、isted in this paragraph by organization, designation, date, and title.Use the Reference Wizards Check Reference feature when you add a RID outside of the Sections Reference Article to automatically place the reference in the Reference Article. Also use the Reference Wizards Check Reference feature t

37、o update the issue dates.References not used in the text will automatically be deleted from this section of the project specification when you choose to reconcile references in the publish print process.*The publications listed below form a part of this specification to the extent referenced. The pu

38、blications are referred to within the text by the basic designation only.AMERICAN BEARING MANUFACTURERS ASSOCIATION (ABMA)ABMA SBRB (Unknown) Ball and Roller Bearings and BallAMERICAN GAS ASSOCIATION (AGA)AGA GMC Gas Measurement Committee Report No. 3AMERICAN GEAR MANUFACTURERS ASSOCIATION (AGMA)AGM

39、A 908 (1989B; R 1999) Information Sheet: Geometry Factors for Determining the Pitting Resistance and Bending Strength of Spur, Helical and Herringbone Gear TeethANSI/AGMA 2001 (2004D; R 2010) Fundamental Rating Factors and Calculation Methods for Involute Spur and Helical Gear TeethANSI/AGMA 2004 (2

40、008C) Gear Materials, Heat Treatment and Processing ManualANSI/AGMA 2009 (2001B; R 2008) Bevel Gear Classification, Tolerances, and Inspection MethodsANSI/AGMA 2011 (1998A; R 2004) Cylindrical Wormgearing Tolerance and Inspection MethodsANSI/AGMA 6013 (2006A) Standard for Industrial Enclosed SECTION

41、 46 07 53.13 Page 8Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Gear DrivesANSI/AGMA 6034 (1992B; R 2005) Practice for Enclosed Cylindrical Wormgear Speed Reducers and GearmotorsANSI/AGMA 6113 (2006A) Standard for Industrial Enclosed Gear Drives (

42、Metric Edition)AMERICAN INSTITUTE OF STEEL CONSTRUCTION (AISC)ANSI/AISC 360 (2005) Specification for Structural Steel BuildingsAMERICAN WATER WORKS ASSOCIATION (AWWA)AWWA 10084 (2005) Standard Methods for the Examination of Water and WastewaterAWWA C111/A21.11 (2007) Rubber-Gasket Joints for Ductile

43、Iron Pressure Pipe and FittingsAWWA C207 (2007) Standard for Steel Pipe Flanges for Waterworks Service-Sizes 100 mm through 3600 mm 4 in. through 144 in.AWWA C504 (2010) Standard for Rubber-Seated Butterfly ValvesAWWA C600 (2010) Installation of Ductile-Iron Water Mains and Their AppurtenancesAWWA

44、D100 (2005; Errata 2007) Welded Steel Tanks for Water StorageAMERICAN WELDING SOCIETY (AWS)AWS D1.1/D1.1M (2010) Structural Welding Code - SteelASME INTERNATIONAL (ASME)ASME B15.1 (2000; R 2008) Safety Standard for Mechanical Power Transmission ApparatusASME B16.1 (2010) Gray Iron Threaded Fittings;

45、 Classes 25, 125 and 250ASME B16.4 (2006) Standard for Gray Iron Threaded Fittings; Classes 125 and 250ASME B16.5 (2009) Pipe Flanges and Flanged Fittings: NPS 1/2 Through NPS 24 Metric/Inch StandardASME B17.1 (1967; R 2008) Keys and KeyseatsASME B17.2 (1967; R 2008) Woodruff Keys and KeyseatsASME B18.2.2 (2010) Standard for Square and Hex NutsSECTION 46 07 53.13 Page 9Pr