Offshore Marine Sanitation Devices - FIS SEJAHTERA · 2019. 12. 25. · Severn Trent De Nora CAPABILITIES Severn Trent De Nora is a full service design, engineering and manufacturing

OMNIPURE™Offshore Marine Sanitation Devices

Rugged, Dependable and Purpose-built for the demanding Offshore Industrial Sector

Clean WATER. Clear CONSCIENCE.™

Typical OMNIPURE

Severn Trent De Nora offers the OMNIPURE™ system, the only marine sewage system that oxidizes sewage in an electrochemical cell as well as generates sodium hypochlorite for the disinfection of the sewage streams. OMNIPURE marine sewage treatment units offer effective electrolytic treatment of both black and gray water through a patented and certified process. OMNIPURE systems range in treatment capacities from 781 to 15,842 gal/day, while utilizing small installation floor space.

OMNIPURE units are specifically manufactured for marine and offshore installations requiring permanent or long-term operation for the treatment of marine sewage. The rugged design of the OMNIPURE offshore line of units is well suited for the rigors of industrial platform installations. Minimal maintenance, small equipment footprint and the light weight packages, make the OMNIPURE a long-term solution for wastewater treatment on a variety of offshore and marine installations, including those deeper water, weight-sensitive applications.

OMNIPURE™ Treatment ProcessThe processing function of every OMNIPURE unit is the same — regardless of size. The automatic treatment process for generating oxidant on-demand is simple and proven effective. Operation is 24/7, with continuous collection and treatment of the accumulated black and gray water.• Raw sewage is collected via gravity into the system’s V-1 influent collection tank. • The OMNIPURE unit oxidizes and disinfects raw sewage by means of an electrochemical reaction in the unit’s bookcell. • After the slurry of sewage and seawater has been electrolyzed in the bookcell, the stream is routed into the OMNIPURE unit V-2 residence tank. • The V-2 tank is sized to provide the required retention time to assure that any remaining bacteria will be exposed to the produced hypochlorite and killed.• After retention in the V-2 tank, the effluent overflows from the top of the V-2 tank to the sea, via gravity. If this discharge point is below a vessel’s waterline, the V-2 tank discharge is routed to an on-board centrifugal overboard discharge pump for discharge to the sea.

Treatment Process

OMNIPURE™ Benefits and CertificationsOMNIPURE Benefits:• Effective electrolytic wastewater treatment• Treats both black and gray water• Patented, certified process• Compact and lightweight with short retention periods• Low maintenance• No dangerous chemical additives• No odors• No screens or growth media to clean• No filters• No sludge• No dilution• No microorganisms to maintain• No additional tanks required• 26-plus years of field installation experience

Equipment Certifications:• International Maritime Organization (IMO) Resolution MEPC.2 33 CFR 59• United States Coast Guard (USCG) Type Test Certified• Certified for use in Hazardous Areas per NEC 501-1 of NFPA 70 (CL.1, C/D, Div.2)• China Classification Society No. NYT02610001• Russian Maritime Register of Shipping No. 97.143.009• Certified by Nationally Recognized Testing Laboratory (NRTL) • UL508A • UL73 • NFPA 70, UL1604 and NFPA 496 • UL698A • CSA 22.2 14-95 • Applicable sections of Article 500 of the National Electric Code (NEC)

Standard OMNIPURE UnitsThe OMNIPURE™ 6MC, 7ME, 8MC and 12MC units offer desirable attributes common to drilling platforms and smaller ocean going vessels. The compact size and light weight allow for easy movement through existing passageways and hatches and installation into tight spaces.

Available Standard Options include: Overboard Pump, Briner Unit, Dechlorination Unit, Vent Blower and Z-Purge Kit.

Standard OMNIPURE Design Specifications

6MC 7ME 8MC 12MC

Personnel Complement (Maximum)¹

Black Water 25 40 60 120

Black & Gray Water 12 16 25 50

Treatment Ratings (Maximum)

Volume(L/day) 2960 4540 6800 13600

(Gal/Day) 781 1199 1796 3593

Dimensions & Weights

Length(mm) 1600 1676 2210 2311

(inches) 63 66 87 91

Height(mm) 1727 1626 1727 1778

(inches) 68 64 68 70

Width(mm) 711 787 711 711

(inches) 28 31 28 28

Dry Weight(kg) 654 794 895 991

(lbs) 1441 1750 1973 2185

Operating Weight

(kg) 994 1488 1633 2043

(lbs) 2191 3280 3600 4505

V-1 Volume(liters) 227 341 568 643

(gallons) 60 90 150 170

V-2 Volume(liters) 114 227 284 454

(gallons) 30 60 75 120

Utility Requirements

Power (KVA)** 5.5 5.5 5.5 8.8

Seawater(L/min) 1.9 3.8 5.7 9.5

(G/min) 0.5 1.0 1.5 2.5

¹ Personnel complement provided for reference only. System sizing to be based on daily hydraulic loadings as determined by actual fi eld data where available.

** All electrical ratings assume normal operating conditions at normal seawater salinity levels.

All information is subject to change at the discretion of Severn Trent De Nora.

OMNIPURE™ 6MC

OMNIPURE™ 8MC(Optional Overboard Pump Shown)

OMNIPURE™ 7ME

OMNIPURE™ 12MC

High Capacity OMNIPURE Design Specifications

12MX 15MX


Black Water 250 500

Black & Gray Water 110 225


Volume(L/day) 28390 56000

(Gal/Day) 7500 14794


Length(mm) 2616 3607

(inches) 103 142

Height†(mm) 2870 3048

(inches) 113 120

Width(mm) 1219 1372

(inches) 48 54

Dry Weight(kg) 1452 2994

(lbs) 3200 6600

Operating Weight

(kg) 3987 7994

(lbs) 8792 17624

V-1 Volume(liters) 1476 2945

(gallons) 390 778

V-2 Volume(liters) 1170 2271

(gallons) 309 600


Power (KVA)** 21 24

Seawater(L/min) 28.39 47.32

(G/min) 7.5 12.5


** All electrical ratings assume normal operating conditions at normal seawater salinity levels. † Denotes overall height including unit Sprayhead device.


High Capacity OMNIPURE Treatment UnitsThe OMNIPURE™ 12MX and 15MX units offer increased treatment capacities for larger offshore installation demands. All OMNIPURE units are designed for easy disassembly into component parts to allow for easy movement through existing passageways and hatches and installation into tight spaces.

Available Standard Options include: Overboard Pump, Briner Unit, Dechlorination Unit, Vent Blower and Z-Purge Kit.

OMNIPURE™ 12MX

OMNIPURE™ 15MX

Automated Maintenance OMNIPURE Units The OMNIPURE™ 12MXMP and 15MXMP units offer the same treatment capacities as the high capacity MX series units but include enhanced automated maintenance features. The OMNIPURE 18MXMP is only offered with the automated maintenance features, it is not available as an MX series unit.

For applications requiring larger unit sizes, operators find it beneficial to install systems requiring less frequent manual maintenance. The MXMP models offer the benefit of longer, continuous on-line operation between required manual maintenance duties.

These enhanced features include:• Automated V-2 blowdown• Automated cell flow reversal• Enhanced bookcell electrolyzer design permits higher throughput flow velocity through the treatment cell, enhancing the scouring effect of the flow

Automated Maintenance OMNIPURE Design Specifications

12MXMP 15MXMP 18MXMP


Black Water 250 500 525

Black & Gray Water 110 225 240


Volume(L/day) 28390 56000 60000

(Gal/Day) 7500 14794 15842


Length(mm) 2616 3607 3657

(inches) 103 142 144

Height†(mm) 2870 3073 3225

(inches) 113 121 127

Width(mm) 1219 1372 1372

(inches) 48 54 54

Dry Weight(kg) 1500 3045 3340

(lbs) 3300 6700 7363

Operating Weight

(kg) 4033 7994 8040

(lbs) 8895 17624 18386

V-1 Volume(liters) 1476 2945 3236

(gallons) 390 778 855

V-2 Volume(liters) 1170 2271 2498

(gallons) 309 600 660


Power (KVA)** 21 24 24

Seawater(L/min) 28.39 47.32 51.10

(G/min) 7.5 12.5 13.5


** All electrical ratings assume normal operating conditions at normal seawater salinity levels. † Denotes overall height including unit Sprayhead device.

Available Standard Options include:Overboard Pump, Briner Unit, Dechlorination Unit, Vent Blower and Z-Purge Kit.


OMNIPURE™ 12MXMP

OMNIPURE™ 15MXMP

Process Module OMNIPURE Units Process modules are available in the same treatment capacities as complete OMNIPURE units to take advantage of existing influent and effluent tanks or tanks manufactured in place as well as very tight installation locations.*

Process modules are constructed of the same high quality industry standard components as are all other OMNIPURE systems but without tanks mounted on the equipment’s base frame.

Due to specific equipment configuration criteria, process modules are sold as made-to-order packages requiring Severn Trent De Nora engineering and design services. Each package design takes into account the customer’s particular installation space, prefabricated or existing tanks and any equipment interfaces.

*Process module equipment arrangements may vary based on actual installation configuration.

OMNIPURE™ 15MXPM

Available Factory STANDARD Options OMNIPURE™ units can be supplied with a variety of standard factory-installed options. Each unit is designed to be easily fitted with any combination of options offered.

Overboard PumpRequired when the unit’s overboard discharge point is below a vessel’s water line or additional unit discharge pressure is desired. 316 SS centrifugal pump is supplied mounted to the unit (12MC requires off-skid mounting) and is pre-wired into the unit’s main control panel.

Brine Add SystemRequired for those units operating in brackish (or fresh) waters where salinity is below 1.5 percent. This option provides the user with an off-skid salt tank and briner prime/purge panel. This system automatically injects a measured amount of brine solution (saltwater) into the OMNIPURE unit as required to sustain the electrolytic process. Since seawater is required for proper operation of the OMNIPURE unit, this option is essential in maintaining a properly functioning unit in brackish waters.

Z-Purge (Pressurization) SystemA UL listed Z-Purging system can be fitted to the OMNIPURE’s main control panel when a unit is to be installed into a Hazardous, Class 1, Groups C/D, Division 2 location. This purge option allows for safe operation of the unit in the classified area with minor cost impact to the unit.

Dechlorination SystemThe dechlorination option uses a mixture of food grade sodium sulfite and seawater to effectively remove the chlorine produced by the electrolytic process, before the effluent is discharged to sea. This option is required when the effluent discharge cannot contain chlorine or the effluent discharge point is into sensitive waters. This option provides the user with an off-skid mixing tank and dechlorination control panel. This system automatically injects a measured amount of sodium sulfite into the effluent discharge line.

BlowerAn electric blower may be included as a ship loose item for those applications where no compressed air is available for the required powered V-2 vent, or when dilution of the vent gases is required. An air ejector is supplied normally as standard equipment on all OMNIPURE units for removal of gases to a safe location. When air is not available, this Blower is required. The associated blower circuit and motor starter are included in the unit’s main control panel.

Note:The OMNIPURE equipment is MET NRTL Certified for use in hazardous area locations, rated Class 1, Groups C/D, Division 2, and for meeting applicable UL and NEC electrical requirements.

Severn Trent De Nora CAPABILITIES Severn Trent De Nora is a full service design, engineering and manufacturing company. Many OMNIPURE sewage treatment systems are developed to meet application specific, made-to-order, needs. The quality and safety expectations of clients worldwide are principles followed in development of each OMNIPURE unit. Severn Trent De Nora is committed to achieving the below objectives through reviews and audits, corrective and preventative actions, improved communication and employee participation.

• To continually improve the effectiveness of our ISO 9001-2000 Quality Management System• To meet the product-related customer requirements• To improve the cost effectiveness of the operation

FacilitySevern Trent De Nora’s global headquarters is located in Sugar Land, Texas, a few minutes southwest of Houston. The Houston metropolitan area is rich with a legacy of onshore and offshore petrochemical and oil and gas engineering and construction companies. Our manufacturing facility location allows Severn Trent De Nora to be centrally located to all aspects of the industrial market, offering many quality sub-vendors, fabrication yards and warehousing facilities serving the industry needs.

ManufacturingOur 55,000 ft2 manufacturing facility has been building standard and made-to-order OMNIPURE sewage treatment systems for over 26 years. Our facility is composed of a stocked parts warehouse, various component and large equipment assembly areas and a full ‘wet’ test bay for support of all the equipment manufactured. A highly trained staff of technicians and specialists perform the various manufacturing duties to insure all products are built to design, maintaining high quality and workmanship. All factory acceptance testing is done on the premises prior to equipment shipment to site.

EngineeringOur fully staffed engineering department develops made-to-order OMNIPURE equipment packages to fit customer needs and field installation requirements. The project management staff works directly with clients to effectively implement custom projects from inception of design to completion of manufacturing and on-site commissioning duties. Each project has an assigned project engineer who is responsible for internal project implementation and organization and who is available directly for related project activities. Our engineers routinely work with clients to enhance the OMNIPURE systems to include custom features such as NEMA 7 controls, hazardous area equipment, structural steel modifications, special tank layouts and process piping configurations.

DesignSevern Trent De Nora’s design department uses the latest AutoCAD® graphical design software, coupled with 3-D modeling capabilities, to effectively pre-plan, design and finalize all manufactured OMNIPURE equipment packages. Our professional, motivated and highly trained team of mechanical and electrical designers provide the attention to detail needed to efficiently produce system designs.

Made-to-Order CapabilitiesSevern Trent De Nora often enhances the standard OMNIPURE product line with customer-specific modifications where applicable. The OMNIPURE units are routinely installed in classified (hazardous) locations offshore, requiring NEMA 7 controls and/or air purging devices (Z-Purge) for code compliance. Other system modifications include multiple grinding streams; increased capacity holding and surge tanks; specialized structural steel design; sectionalized skids and tanks; purpose built sewage lift stations; and integrated vacuum interface controls. Severn Trent De Nora takes pride in the relationships formed with its customers around the world and strives to continue to provide “purpose built” equipment and systems for the specialized offshore market.

*Visit www.severntrentdenora.com to view our OMNIPURE™ system photo gallery.

750.0003.1 MAR/08

Environmental Consciousness Severn Trent De Nora’s corporate responsibility strategy is to effectively operate at the highest standards of business conduct and minimize its environmental impact.

Severn Trent De Nora promotes environmental responsibilities within the company, while staying in constant touch with the changing world of environmentally sensitive matters. Reduction of energy, emissions and pollutants are all active ventures within Severn Trent De Nora.

Severn Trent De Nora continually emphasizes the Health and Safety of its employees and all those who come into contact with its operations. Our active community involvement, investment and education programs ensure that we have a positive impact on local communities.

www.severntrentdenora.com

www.severntrentdenora.com

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Offshore Marine Sanitation Devices - FIS SEJAHTERA · 2019. 12. 25. · Severn Trent De Nora CAPABILITIES Severn Trent De Nora is a full service design, engineering and manufacturing