Energy Specialties International

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Company Information Company: Address: Engineer: Phone: Fax: E-mail: Skim Pile Information Deck Area: Water Depth: Rainfall Intensity: Cellar Deck El.: Boat Deck El.

1 Company Information Company: Address: Engineer: Phone: Fax: Skim Pile Information Deck Area: Water Depth: Rainfall Intensity: Cellar Deck El.: Boat Deck El.: Continuous or Intermittent Flow: Oil Droplet Size In: micron Inlet Quality: ppm Effluent Quality: ppm Produced Water Information Flowrate (bwpd): Temperature: Operating: F Design: F Oil Droplet Size In: micron Pressure: Operating: Design: Oil Viscosity: Water (SG): Oil (SG): Inlet Quality: ppm Desired Effluent Quality: ppm Experts in Wastewater Treatment Energy Specialties International Parkway Business Center, Tomball Parkway, Suite 0, Tomball, TX 7775 USA energyspecialties.com

2 energyspecialties.com

3 Experts in Wastewater Treatment Energy Specialties International

Energy Specialties International Energy Specialties International (ESI) is a Texas Corporation engaged in the sale, engineering, design, manufacturing, installation and technical servicing of

5 Energy Specialties International Energy Specialties International (ESI) is a Texas Corporation engaged in the sale, engineering, design, manufacturing, installation and technical servicing of wastewater treatment equipment. ESI has spent years improving traditional equipment such as our Skimpile disposal caisson, Quadair induced gas flotation unit (IGF) and corrugated plate interceptors (CPI) while continuing to develop new products. ESI offers complete and tested water treatment packages which combines all phases of wastewater treatment on one skid. Because our packages often include piping, instrumentation and electrical, the customer has few tie-in connections. ESI guarantees all of our equipment and system packages performance. So the next time you need Wastewater Treatment equipment or have a stubborn wastewater separation problem, turn to the wastewater experts. Energy Specialties International.

Quadair Flotation Unit A four-cell flotation system designed to float out emulsified oils and suspend solids by inducing gas bubbles.

6 Inlet Skimmer A -phase separator for large particles (50 m) designed to provide constant flow for downstream equipment. Corrugated Plate Interceptor (CPI) 450 Down-flow Parallel Plate Separator designed and sized to remove oil and sand from wastewater. Quadair Flotation Unit A four-cell flotation system designed to float out emulsified oils and suspend solids by inducing gas bubbles. Upflow CPI 600 Up-flow Parallel Plate Separator designed and sized to remove and clean solids from wastewater. Refluent Skimmer An atmospheric skimmer vessel with specialized internal media designed to improve Skim Pile effeciency. Skim Pile An internally plated vertical caisson designed to remove free oil (>50 m) from Open and Closed Drains. Disposal Pile An up-plated vertical caisson designed to dispose Produced Water and contain upstream equipment upsets. Deck Drains and Seals Used to seal drains and drain headers, preventing toxic and flammable gases from venting in protected areas.

The baffles are spaced equivalent to the caisson diameter and this section is where the oil/water separation occurs. There are many advantages to the tightly spaced baffles:.

7 SKIM PILE Skim Pile 50 Micron (Intermittent Flow) Open/Closed Drains intermittently enter the caisson. As the liquid flows down the caisson, it enters a baffled section (typically starting at EL (-) 20-0 LAT). The baffles are spaced equivalent to the caisson diameter and this section is where the oil/water separation occurs. There are many advantages to the tightly spaced baffles:. Allows a shorter distance for free oil droplets to rise. 2. Creates a quiescent zone under each baffle allowing optimal conditions for oil/water separation.. Greater surface area for oil to collect and coalesce. 4. Cleans sand as it tumbles and rolls down the baffles. Meanwhile, oil risers prevent the remixing of coalesced oil with the downward flow of water. Based on an intermittent flow of 2 /hr. rainfall for 20 minutes, ESI guarantees the removal of all free oil larger than 50 microns. FLOTATION Pile Skim Pile 500 Micron (Continuous Flow) If the specification requires a continuous flow, then the caisson diameter must increase. This allows the larger oil droplets ( 500 micron) to rise faster than exiting velocity. The baffles are typically spaced every 20 feet and only extend to the center of the caisson. This also aids in reducing the downward velocity. Oil risers are used to prevent re-mixing oil with the water. Flotation Pile 20 Micron (Continuous Flow) ESI s Flotation Pile enhances separation and saves platform deck space by combining topside flotation with underwater gravity separation. It is used primarily for processing improvements to the Skim Pile and when Produced Water is introduced into the Pile. System Benefits:. Multiple Processes in one Vessel A. Free Oil Removal B. Induced Gas Flotation C. Disposal Caisson 2. No Deck Space Required. Low Maintenance 4. Solids Cleaning and Disposal 5. Proven Technology 6. Guaranteed Compliance to Governmental Discharge Regulations

Skim Pile ESI SKIM PILE MODEL NUMBER SELECTION CHART ITEM ESI DESIGNATION MARK Skim Pile Imtermittent Flow (50mµ) SPI Skim Pile Continuous

Removal System 2 6 7 Open End with Cone Bottom Blowcase B Pneumatic Pump P Electric Pump E None (Supplied by others) X External Coating

Thermally Sprayed Aluminum (TSA) T Ameron Tydeguard A Other O A Interior Coating above Baffles (-20 TO T.O.P.

8 Skim Pile ESI SKIM PILE MODEL NUMBER SELECTION CHART ITEM ESI DESIGNATION MARK Skim Pile Imtermittent Flow (50mµ) SPI Skim Pile Continuous Flow (500mµ) SPC ESI MODEL NO: SAMPLE SPI C C Closed End with Water Leg WL 50 Overall Length FT 60 4 Outside Diameter of Caisson IN 5 Oil Removal System Open End with Cone Bottom Blowcase B Pneumatic Pump P Electric Pump E None (Supplied by others) X External Coating Above Splash Zone Epoxy Coating C Thermally Sprayed Aluminum (TSA) T Other O 9 0 T Exterior Coating in Splash Zone Epoxy Coating 8 E C Thermally Sprayed Aluminum (TSA) T Ameron Tydeguard A Other O A Interior Coating above Baffles (-20 TO T.O.P.): Epoxy Coating C Thermally Sprayed Aluminum (TSA) T Glass-Flake Epoxy G Other O Internal Anodes A Anodes Not Required X Gas-Lift Sampling System G Sampling System not Required X T A G

Sump Caisson Gas Lift Sampling System Since sampling is recommended by the API, EPA and SPE, ESI offers a Gas Lift Sampling System to get an

Sump Caisson Oil Removal Below are three Oil Removal Solutions.

9 Sump Caisson Gas Lift Sampling System Since sampling is recommended by the API, EPA and SPE, ESI offers a Gas Lift Sampling System to get an accurate effluent water sample. This will determine if the caisson is working properly or maintenance is required. Sump Caisson Oil Removal Below are three Oil Removal Solutions. EXTERNAL PUMP SYSTEM INTERNAL PUMP SYSTEM blowcase SYSTEM internal blowcase MODEL NUMBER IB-6 IB-8 IB-0 IB- IB-4 IB-6 IB-8 MAX. FLOW DIA L S/S N OIL INLET N2 OIL OUTLET N GAS INLET pneumatic pumps MODEL NUMBER SPP-2 DPP-2 SPP-4 DPP-4 SPP-8 DPP-8 SPP-5 DPP-5 MAX. FLOW MAX PRESS. 5 5 L W H N /2 /2 2 2 N2 /4 /4 /2 /2 2 2 N /4 /4 /8 /8 /2 /2 /2 /2 W (lbs)

10 Quadair Flotation Unit The ESI Quadair Induced Gas Flotation Unit is designed and engineered to remove oil emulsions, suspended solids and organic materials from wastewater. The Quadair required minimal operating power, uses less floor space and has low installation and maintenance costs. Standard Quadair units are available (see sizing table) & ESI can design special models to meet specific needs. Operating Principles The ESI Quadair IGF is divided into six compartments, an inlet distribution compartment, four flotation compartments (or cells) 2,, 4, 5 and a clean water outlet compartment 6. Each compartment is separated by a pair of over/under baffle plates 7 which prevents short circuiting. A centrifugal pump 8 recirculates the clean water through a header to an eductor 9 in each flotation cell. Recirculation rate is 5% of the total throughput. The ESI s Quadair IGF can be equipped with one () recirculation pump or with an additional standby pump. A gas blanket 0 (-2 oz/sq2) is maintained above the water level to help saturate the liquid. As the recycled water passes through the venturi-type eductor, it creates a slight vacuum pulling gas into the eductor nozzle. Gas flows through a ½ line into a stainless needle valve controlling the amount of gas entering the flotation cell. By controlling the gas induced, the proper bubble size and pattern for efficient lifting of suspended solids and oils is achieved. Oil and suspended solids create a froth on the liquid surface where they are continuously removed by means of adjustable v-notch weirs, rotating wiper blades or rotating pipe skimmers. The average skim rate ranges from -% of the total liquid throughput and the residence time is approximately 5 minutes. All Quadair IGF s meet API s RP 4C and can usually achieve 90-97% efficiency due to the combined features of the baffle configuration, recirculation rate, eductor design and gas volume adjustment. Quadair Features. Cylindrical Configuration. 2. Four Cells.. Over and under Welded Internal Baffles. 4. Single, Dual or Multiple Eductors per Cell with Needle Valve. 5. Dual Reject Troughs with Three Skimming Options. 6. Inlet and Effluent Sample Points. 7. Internal and External Painting System. 8. Dual Recirculation Pumps with Associated Valves and Piping. 9. Controlled and Instrumented per Specifications.

11 ESI QUAD-INDUCED IGF MODEL NUMBER SELECTION CHART MODEL NUMBER QH-5 QH-0 QH-5 QH-20 QH-25 QH-0 QH-40 QH-50 QH-75 QH- FLOWRATE /60/440 APPROXIMATE SKID SIZE APPROXIMATE WEIGHT (LBS) GPM ,67,458 2,88 2,97 BWPD 5,000 0,000 5,000 20,000 25,000 0,000 40,000 50,000 75,000,000 MOTOR HP L W H DRY 8,000 0,000,000 5,000 8,000 25,000 5,000 40,000 45,000 50,000 WET 5,000 24,000 5,000 42,000 50,000 78,000 5,000 40,000 60,000 80,000

ESI Corrugated Plated Interceptors (CPI) DESIGN PRINCIPLES 4 7 6 5 8 The ESI CPI is designed and engineered for oil recovery applications where energy usage and equipment costs are a determining

12 ESI Corrugated Plated Interceptors (CPI) DESIGN PRINCIPLES The ESI CPI is designed and engineered for oil recovery applications where energy usage and equipment costs are a determining factor. The CPI is a gravity separator where efficiency is determined by the rising velocity of the smallest particles that will be intercepted, usually greater than 50 microns. The plate pack is made of many closely spaced corrugated plates. Using Stoke s Law, the rate of rise of the oil can be calculated. The greatest advantage of the ESI CPI is that the rising distance is usually less than one inch. This allows the oil droplets to rise and coalesce to larger droplets or for sand to fall out of the flowing stream OPERATING PRINCIPLES 9 Oily-water enters the inlet nozzle Solids break out and settle in the primary solids compartment 2 Oily-water flows upward and through the distribution baffle Evenly dispersed water flows downward and enters the plate pack 4. Oil rises to the peaks of the corrugations and coalesces with other oil droplets 5. Gaining buoyancy, the oil moves upward along the plates, exiting the pack and up to the oil/water interface. A thick layer of oil is allowed to collect 6 until it flowsover and adjustable v-notch weir 7 and into the oil compartment 8. Light solids and sludge separation is accomplished within the pack falling to the valleys of the corrugations 9. The solids then exit the pack into the secondary solids compartment 0. As the water exits the plate pack, it flows upward and over a fixed water weir into a clean water compartment. A secondary oil outlet is adjacent to the water outlet. A gasketed lid seals the vessel for a gas blanket 4. ESI CPI Features No Power Requirement No Moving Parts Compact Design/Minimum Footprint Required Low Initial Cost Low Operating Cost Low Maintenance Cost

Complete ESI Open Drain System drain header liquid seal w/strainer MODEL NUMBER DHLS-S-

625 54.625 56.625 58.625 69.5 7.5 L VESSEL LENGTH 24.75 24.75 24.75 0 0 0 40 40 W VESSEL WIDTH 8.

NUMBER RDD-S-0 RDD-S- RDD-S-4 D 0 4 P 4,500 6,625 8,625 H DRY WT.

13 Complete ESI Open Drain System drain header liquid seal w/strainer MODEL NUMBER DHLS-S- DHLS-S-4 DHLS-S-6 DHLS-S-8 DHLS-S-0 DHLS-S- DHLS-S-4 DHLS-S-6 H VESSEL HEIGHT L VESSEL LENGTH W VESSEL WIDTH INLET/ OUTLET SIZES round deck drain w/liquid seal MODEL NUMBER RDD-S-0 RDD-S- RDD-S-4 D 0 4 P 4,500 6,625 8,625 H DRY WT. (lbs) square deck drain w/liquid seal MODEL NUMBER SDD-S-0 SDD-S- SDD-S-4 W 8 24 P 4,500 6,625 8,625 H DRY WT. (lbs)

14 API-42 Skimmer The ESI API-42 Separator is a gravity-type oil-water separator designed for use in petroleum refineries. Design criteria is based on the American Petroleum Institute s (API) Publication 42, Design and Operation of Oil-Water Separators. Our API-42 Separator includes Diffusers, Reaction-Jets, Sludge Hopper, Flight & Rake System, Corrugated Plate Packs, Oil-Skimming Devices, etc. These internals reduce flow turbulence, distribute the flow evenly, help coalesce and remove the oil. The following parameters are required for proper sizing and design: Qm = T = Sw = µ = So = D = Design flow (maximum wastewater flow). Lowest wastewater temperature. Specific gravity of the wastewater. Absolute/dynamic viscosity of the wastewater. Specific gravity of the oil-fraction. Diameter of the oil globule to be removed. Additional design constraints are as follows: Vh = Horizontal Velocity should be ft/minute or 5x the oil globule rate of rise (Vt), whichever is smaller. d = Separation Depth should be -8 feet. Depth (separator) to width (separator) ratio should range from 0. to 0.5. Separator width is usually 6-20 feet. Two Channels are usually provided for servicing or cleaning one channel while the other is in service. Length to width ratio (L/B) should be 5. api-42 separator package includes Engineered for Specific Application Inlet Distrubution System Solids Collection and Removal Oil Collection and Removal Secondary Oil Removal with Optional Plate Pack Contact ESI with the required design parameters for proper sizing or we can send our qualified personnel on-site to obtain this information.

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17 Experts in Wastewater Treatment Energy Specialties International

Application of CFD for Improved Vertical Column Induced Gas Flotation (IGF) System Development

Application of CFD for Improved Vertical Column Induced Gas Flotation (IGF) System Development Chang-Ming Lee and Ted Frankiewicz NATCO Group, Inc., 2950 North Loop West, Suite 750, Houston, TX 77092 Prepared