1、*USACE / NAVFAC / AFCESA / NASA UFGS-46 25 14 (February 2011)-Preparing Activity: NAVFAC SupersedingUFGS-44 42 53 (April 2006)UFGS-11311 (February 2002)UNIFIED FACILITIES GUIDE SPECIFICATIONReferences are in agreement with UMRL dated April 2011*SECTION TABLE OF CONTENTSDIVISION 46 - WATER AND WASTEW
2、ATER EQUIPMENTSECTION 46 25 14COALESCING OR VERTICAL TUBE OIL-WATER SEPARATORS02/11PART 1 GENERAL1.1 REFERENCES1.2 SYSTEM DESCRIPTION1.2.1 Applications1.2.2 Influent Characteristics1.2.3 Performance Requirements1.3 SUBMITTALS1.4 DELIVERY, STORAGE, AND HANDLING1.4.1 Delivery and Storage1.4.2 Handling
3、PART 2 PRODUCTS2.1 MATERIALS2.1.1 Separator Corrosion Protection2.1.1.1 Steel Separator2.1.1.2 Other Than Steel Separator2.1.1.3 Cathodic Protection2.1.2 Substitutions2.1.3 External Surfaces2.1.4 Internal Surfaces2.1.5 Hardware2.1.6 Accessibility2.2 SEPARATION CHAMBER2.2.1 Lifting Mechanism2.2.2 Fla
4、nges2.2.3 Weirs2.2.4 Low Point Drains2.2.5 Identification Plates2.2.6 Instruction Plates2.2.7 Warning Sign2.3 INLET COMPARTMENT2.4 OIL SEPARATION COMPARTMENT2.4.1 GeneralSECTION 46 25 14 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.4.2 Par
5、allel Plates2.4.3 Vertical Tubes2.4.4 Supports2.4.5 Baffles2.5 OUTLET COMPARTMENT2.6 ACCESSORIES AND ACCESSORY EQUIPMENT2.7 FABRICATION2.7.1 Shop Hydrostatic Test2.7.2 Reduction of Solids2.7.3 Oil Coalescing Compartment2.7.4 Wastewater Sampling Port2.7.5 Connections2.7.6 StoragePART 3 EXECUTION3.1 I
6、NSPECTION3.2 INSTALLATION3.3 FIELD QUALITY CONTROL3.3.1 Field Hydrostatic Test3.3.2 Preoperational Test3.3.2.1 Tests3.3.2.2 Preoperational Investigation and Test Report3.3.3 In-Service Test3.3.3.1 Analytical Methods3.3.3.2 Test for Contaminants3.3.3.3 Sampling Procedures3.3.3.4 Acceptance Criteria-
7、End of Section Table of Contents -SECTION 46 25 14 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-46 25 14 (February 2011)-Preparing Activity: NAVFAC SupersedingUFGS-44 42 53 (April 2006)UFGS-11311 (Februar
8、y 2002)UNIFIED FACILITIES GUIDE SPECIFICATIONReferences are in agreement with UMRL dated April 2011*SECTION 46 25 14COALESCING OR VERTICAL TUBE OIL-WATER SEPARATORS02/11*NOTE: This guide specification covers the requirements for parallel plate, and vertical tube gravity oil-water separators to remov
9、e free oil and particulate matter from oily waste water.Adhere to UFC 1-300-02 Unified Facilities Guide Specifications (UFGS) Format Standard when editing this guide specification or preparing new project specification sections. Edit this guide specification for project specific requirements by addi
10、ng, deleting, or revising text. For bracketed items, choose applicable items(s) or insert appropriate information.Remove information and requirements not required in respective project, whether or not brackets are present.Comments, suggestions and recommended changes for this guide specification are
11、 welcome and should be submitted as a Criteria Change Request (CCR).*NOTE: Vertical tube coalescers shall not be used on Army projects *NOTE: When influent conditions require treatment beyond the capability of a parallel plate, vertical tube, or API type gravity separator (e.g. presence of a mechani
12、cal or chemical oil-water emulsion), the designer shall prepare specifications to add one or more of the following unit operations to the separation system to comply with discharge criteria:HydrocycloneChemical pretreatment unitFlocculatorSECTION 46 25 14 Page 3Provided by IHSNot for ResaleNo reprod
13、uction or networking permitted without license from IHS-,-,-Dissolved air floatation unitElectrocoagulation unitFilter membranesCartridge filtersActivated carbon absorberMultimedia filtrationSludge dewatering equipmentIn addition, these separators are not intended as containment devices. Where appli
14、cable regulations dictate containment of accidental spills, suitable containment systems shall be designed.*NOTE: The following information shall be shown on the project drawings:1. Inlet and outlet pipe invert elevations.2. Sampling ports integral with the influent pipe and effluent pipe, when requ
15、ired.3. Accessory equipment.*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 listed in this paragraph by organization, designation, date, and ti
16、tle.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 to update the issue dates.References not used in the text will auto
17、matically 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 publications are referred to within the text by the basic designatio
18、n only.AMERICAN WATER WORKS ASSOCIATION (AWWA)AWWA 10084 (2005) Standard Methods for the Examination of Water and WastewaterSECTION 46 25 14 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AMERICAN WELDING SOCIETY (AWS)AWS D1.1/D1.1M (2010) Str
19、uctural Welding Code - SteelASME INTERNATIONAL (ASME)ASME B16.5 (2009) Pipe Flanges and Flanged Fittings: NPS 1/2 Through NPS 24 Metric/Inch StandardASTM INTERNATIONAL (ASTM)ASTM A36/A36M (2008) Standard Specification for Carbon Structural SteelASTM E 165 (2009) Standard Test Method for Liquid Penet
20、rant ExaminationTHE SOCIETY FOR PROTECTIVE COATINGS (SSPC)SSPC SP 10/NACE No. 2 (2007) Near-White Blast CleaningU.S. DEPARTMENT OF DEFENSE (DOD)MIL-DTL-24441 (2009; Rev D) Paint, Epoxy-Polyamide, General Specification forMIL-S-45180 (1984; Rev D; Notice 1 1991; Notice 2 1998) Sealing Compound, Gaske
21、t, Hydrocarbon Fluid and Water ResistantU.S. ENVIRONMENTAL PROTECTION AGENCY (EPA)EPA 600/4-79/020 (1983) Methods for Chemical Analysis of Water and WastesU.S. GENERAL SERVICES ADMINISTRATION (GSA)FS SS-S-210 (Rev A, Notice 3) Sealing Compound, Preformed Plastic, for Expansion Joints and Pipe Joints
22、1.2 SYSTEM DESCRIPTION1.2.1 Applications*NOTE: Delete parts of paragraph which are not applicable for project with respect to liquid carrier. Identify oily wastewater source(s) such as machine and paint shops, aircraft maintenance operations, aircraft washrack and rinse (corrosion control) areas, ta
23、nk farm and fuel transfer areas, runway and fire training areas, bilge and ballast water, accidental spills, and contaminated stormwater runoff.*SECTION 46 25 14 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTE: Pumping of influent will mec
24、hanically emulsify oil in water unless a positive displacement pump or other low emulsifying, de-rated pump is used.*NOTE: Identify site specific atmospheric conditions that would produce a corrosive environment for oil-water separator materials so that the proper protective coatings or corrosion re
25、sistant materials can be provided.*The separator shall remove free oil and emulsified oil and suspended solids from oil-in-water mixtures of freshwater freshwater and seawater seawater originating from _ operations. The influent oil-in-water mixture will flow by gravity be pumped to the unit which w
26、ill will not be located in an area with a corrosive atmosphere. The corrosive atmosphere is composed of _.1.2.2 Influent Characteristics*NOTE: Insert maximum design flow and wastewater characteristics which have been established by direct measurement and chemical analysis.*Provide oil-water separato
27、r designed for a maximum flow of _ liters per second gallons per minute. Operating temperatures of the influent oil-in-water mixture will range from _ to _ degrees C degrees F and ambient air temperatures will range from _ to _ degrees C degrees F. The specific gravity gravities of the oil oils at o
28、perating oil-water temperatures will range from _ to _. The specific gravity of the freshwater freshwater and seawater seawater at operating temperatures will range from _ to _. The average specific gravity of the suspended solids is _. The influent is further characterized as follows:*NOTE: List ad
29、ditional types and concentrations of detergents, anti-oxidants, solvents, acids or bases, and heavy metals that may be present in the oil-in-water mixture. If these additional items are present: chemical addition, flocculation and dissolved air flotation, or other appropriate unit operations may be
30、needed for effective treatment of these constituents.*Oil-in-Water Mixture Minimum MaximumTotal solids _ to _ mg/LTotal suspended solids _ to _ mg/LTotal grease and oil _ to _ mg/LSECTION 46 25 14 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,
31、-Oil-in-Water Mixture Minimum MaximumPetroleum hydrocarbons _ to _ mg/LDetergent content _ to _ ppmpH _ to _Oil droplet size Greater than 20 microns1.2.3 Performance Requirements*NOTE: Make choice based on standards or guidelines established by environmental regulatory agency(ies); or other design c
32、onsiderations, such as unit wastewater treatment process(es) that follow downstream from this separator. Quantity of free oil removed is dependent on characteristics of oil-in-water mixture. The practical minimum concentration achievable is 10 mg/L for a parallel plate separator under ideal conditio
33、ns.*NOTE: In general, free oil is defined as dispersed oil globules that rise to the surface of the water in which it is contained. The rate of rise of the oil particle is a function of its size and specific gravity as defined by Stokes Law. Oil droplets with diameters of greater than 20 microns and
34、 specific gravities of 0.95 or less are considered to constitute the free oil form. Smaller oil droplet diameters are attributed to mechanically or chemically emulsified oil.*The grease and oil petroleum hydrocarbon concentration in the effluent from the oil-water separator shall not exceed the foll
35、owing limitations:Contaminants MaximumTotal grease and oil, 30-day average _ mg/LTotal grease and oil, daily maximum _ mg/LPetroleum hydrocarbon, 30-day average _ mg/LPetroleum hydrocarbon, daily maximum _ mg/L_ _To achieve this goal these goals, it will be necessary to remove all free oil droplets
36、equal to or greater than 20_ microns.SECTION 46 25 14 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.3 SUBMITTALS*NOTE: Review submittal description (SD) definitions in Section 01 33 00 SUBMITTAL PROCEDURES and edit the following list to ref
37、lect only the submittals required for the project. Submittals should be kept to the minimum required for adequate quality control.A “G” following a submittal item indicates that the submittal requires Government approval. Some submittals are already marked with a “G”. Only delete an existing “G” if
38、the submittal item is not complex and can be reviewed through the Contractors Quality Control system. Only add a “G” if the submittal is sufficiently important or complex in context of the project.For submittals requiring Government approval on Army projects, a code of up to three characters within
39、the submittal tags may be used following the “G“ designation to indicate the approving authority. Codes for Army projects using the Resident Management System (RMS) are: “AE“ for Architect-Engineer; “DO“ for District Office (Engineering Division or other organization in the District Office); “AO“ fo
40、r Area Office; “RO“ for Resident Office; and “PO“ for Project Office. Codes following the “G“ typically are not used for Navy, Air Force, and NASA projects.Choose the first bracketed item for Navy, Air Force and NASA projects, or choose the second bracketed item for Army projects.*Government approval is required for submittals with a “G“ designation; sub
