500-02006

Electrochemical Disinfection Capabilities

Statement of Qualifications

Table of Contents

i

Introduction 1 Electrochemical Disinfection Products by Market and Applications .........................1 About Severn Trent Services ...................................................................................2 About Severn Trent De Nora....................................................................................2 About Gruppo De Nora.............................................................................................2

Global Experience 3 Global Electrochlorination Experience......................................................................3 Market Position.........................................................................................................3 Office Locations........................................................................................................3 Sales Network ..........................................................................................................4 Engineering & Design Capability ..............................................................................4 Service & After Sales Capability...............................................................................4

Municipal Water & Wastewater Disinfection and Inland Power & Industrial Biofouling Control- ClorTec 5

Generating Sodium Hypochlorite Disinfection Solution from Brine...........................5 Basic Operating Principles .......................................................................................5 ClorTec Electrolytic Cell Operation & Design .........................................................6 Hydrogen Formation.................................................................................................7 Split Flow Cell Design: Dividing the Water ...............................................................7 Applications ..............................................................................................................8

Industrial Power & Coastal Biofouling Control and Desalination Water Disinfection- SEACLOR 9

Generating a Sodium Hypochlorite Biofouling Control Solution from Seawater .......9 Basic Operating Principles .......................................................................................9 SEACLOR Product Offering .................................................................................10 Applications ............................................................................................................11

Offshore & Marine Biofouling Control- SANILEC 12 Generating a Sodium Hypochlorite Biofouling Control Solution from Seawater .....12 Basic Operating Principles .....................................................................................12 SANILEC Product Offering ...................................................................................13 Electrolytic Cell.......................................................................................................13 Applications ............................................................................................................14

Marine Sewage Treatment Systems- OMNIPURE 15 OMNIPURE Overview ........................................................................................15 OMNIPURE Certifications...................................................................................15 OMNIPURE Basic Operating Principles .............................................................16 OMNIPURE System Benefits..............................................................................16 OMNIPURE Applications ....................................................................................17

Table of Contents

ii

Marine Sewage Treatment Systems- MARINER OMNIPURE 18 MARINER OMNIPURE Overview.........................................................................18 MARINER OMNIPURE Certifications ...................................................................18 MARINER OMNIPURE Basic Operating Principles..............................................18 MARINER OMNIPURE Benefits...........................................................................19 MARINER OMNIPURE Applications ....................................................................19

Marine Ballast Water Treatment Systems- BALPURE 20 Ballast Water Concerns..........................................................................................20 BALPURE Ballast Water Treatment System ........................................................20 BALPURE Product Offering..................................................................................20 BALPURE System Benefits ..................................................................................21 Applications ............................................................................................................21

Electrochemical Disinfection Capabilities Page 1 Statement of Qualifications Severn Trent Services & Severn Trent De Nora 500.0200.5 OCT//12

Introduction Severn Trent Services, Inc. (STS) is a leading supplier of water and wastewater electrochemical disinfection treatment solutions worldwide for the below mentioned markets and applications.

On-site electrochemical generation of a powerful biocide and disinfecting agent is a simple, reliable and straight forward process that combines three common consumables; salt, water and electricity.

Electrochemical Disinfection Products by Market and Applications

Market Application Product Page

Municipal Water & Wastewater Disinfection ClorTec 5

Industrial Inland Power & Industrial Biofouling Control ClorTec 5

Industrial Power & Coastal Industry Biofouling Control SEACLOR 9

Industrial Desalination Water Disinfection SEACLOR 9

Offshore Biofouling Control SANILEC 12

Marine Biofouling Control SANILEC 12

Marine Marine Sewage Treatment OMNIPURE 15

Marine Marine Sewage Treatment MARINER OMNIPURE

18

Marine Ballast Water Treatment BALPURE 20


About Severn Trent Services

Severn Trent Services (STS) has a global presence and is a $600 million business employing over 3,000 personnel providing water and wastewater equipment and services to communities and industrial customers around the world. The companys broad range of products and services is concentrated around disinfection, instrumentation and filtration technologies, contract operating services and state-of-the-art residential metering products and services. Our analytical services group is the UK's leading environmental testing organization, and our international management services business provides support in all aspects of water and wastewater utility operational development and business transformation. Severn Trent Services is a member of the Severn Trent Plc (London: SVT.L) group of companies. Severn Trent is a FTSE 100 company.

About Severn Trent De Nora

Severn Trent De Nora, LLC., (STDN) is a joint venture subsidiary of Severn Trent Services. STDN is the world leader in the supply of on-site generation of biocide solutions to the power, marine, offshore industrial water disinfection markets. Over the past 35 years, STDN has supplied 65% of the world wide installed base of on-site generated hypochlorite. STDN draws upon the strength and global resources of Severn Trent Services, Fort Washington, Pa. and Gruppo De Nora, Milan, Italy. The joint venture was formed in 2002 by the combination of their respective subsidiaries, Exceltec International Corp. and DeNora Seaclor, S.r.l.

The STDN predecessor companies, Eltech Systems Corp., and Gruppo DeNora,

invented the electrode coatings that created Dimensionally Stable Anodes (DSA), a non-sacrificial anode technology that permits the on-site generation of a powerful biocide from salt water.

About Gruppo De Nora

Established in 1923 by Oronzio De Nora, Gruppo De Nora is recognized worldwide as a leading supplier of electrochemical technologies for the production of chlorine, caustic soda and derivatives, as well as the largest worldwide supplier of noble metal-coated electrodes for the chlor-alkali industry and for the electrochemical industry in general. Energy saving and environmental protection are the Group's distinguishing technologies. Gruppo De Nora has built more than 500 plants for the production of chlorine and caustic soda and for the electrochlorination of industrial waters in 60 different countries.


Global Experience Global Electrochlorination Experience

Installations 3500+

Installed Capacity 3.0 million lb/day / 54 thousand kg/hr

Largest Installed Capacity System 240 thousand lb/day / 4.5 thousand kg/hr

Employee Count 150

Combined Experience 360+ years

Engineering Staff ~50

External Sales Staff (Reps) 66+

Market Position

ClorTec on-site sodium hypochlorite generating systems from brine have been designed, manufactured, installed, operated and serviced since 1988 and since that time Severn Trent Services has installed more than 3,000 ClorTec systems worldwide.

SANILEC and SEACLOR electrochlorination plants, products of Severn Trent De Nora, are installed in offshore and marine applications accounting for 65 percent of the worldwide installed operating capacity of on-site hypochlorite generation systems from seawater over the past twenty years.

OMNIPURE and MARINER OMNIPURE systems, also a product of Severn Trent De Nora, are the only marine sewage systems that oxidize sewage in the electrochemical cell as well as generate sodium hypochlorite for the disinfection of the marine waste streams. OMNIPURE systems have twenty plus years of field installations onboard oceangoing vessels and offshore production platforms The combined experience of these endeavors from Severn Trent Services and Severn Trent De Nora is unparalleled in the electrochemical water treatment markets worldwide.

Office Locations

Severn Trent Services and Severn Trent De Nora have operating and sales locations in: Fort Washington, Pennsylvania

(headquarters) Colmar, Pennsylvania Pittsburgh, Pennsylvania Tampa, Florida Sugar Land, Texas Torrance, California

Abu Dhabi, United Arab Emirates Kuala Lumpur, Malaysia Cancun, Mexico Cairo, Egypt Bogot, Columbia Tamworth, United Kingdom Milan, Italy Shanghai, China Singapore


Sales Network

Severn Trent Services and Severn Trent De Nora have an employee base of over 3,000 personnel with a combined 360+ plus years plus of experience in the electrochemical market.

A wide network of manufacturer representatives, distributors and sales representatives complements our experienced employee base to provide our clients, worldwide, with the service and sales support they require to effectively and efficiently sell the ClorTec, MARINER OMNIPURE, OMNIPURE, SANILEC, SEACLOR and BALPURE products. Severn Trent Services and Severn Trent De Nora have manufacturer representatives, distributors and sales agents in over 32 countries.

Engineering & Design Capability

With a combined engineering staff of 50 employees, Severn Trent Services and Severn Trent De Nora are well poised to support the ClorTec, MARINER OMNIPURE, OMNIPURE, SANILEC, SEACLOR and BALPURE product lines. We offer upfront design, application and optimization assistance to supply standard and engineered systems; through installation, erection, commissioning and maintenance.

Service & After Sales Capability

Severn Trent Services and Severn Trent De Nora are committed to the service and after-sale support. Our global service network consists of trained service personnel stationed at the majority of our locations. As a result, were able to quickly and efficiently handle all service related requests. In addition, most of our sales representatives are factory trained to service our units in the field.


Municipal Water & Wastewater Disinfection and Inland Power & Industrial Biofouling Control- ClorTec

Generating Sodium Hypochlorite Disinfection Solution from Brine

Severn Trent Services offers the ClorTec on-site sodium hypochlorite generating systems which range in capacity from 6 to 3,000+ lb/day (2.7 to 1,360 + kg/hr) of chlorine equivalent and generate a 0.8% sodium hypochlorite disinfection solution using three common consumables: salt, water and electricity. To meet varying application specific conditions, the ClorTec systems are available as component-based or skid-based systems. ClorTec units are NSF Standard 61 and Drinking Water Inspectorate (DWI) approved, compliant with ATEX requirements and have ETV verification.

On-site generation is a proven, cost-effective, reliable and safe alternative treatment to chlorine gas and bulk sodium hypochlorite disinfection. The use of on-site generated sodium hypochlorite reduces the formation of disinfection byproducts and improves water quality. On-site sodium hypochlorite generation offers advantages such as:

Increased safety Reduced operational costs Consistent solution strength On-demand production Non hazardous chemical (feed or product)

The use of on-site generation also eliminates OSHA and other similar process safety management training, risk management planning and purchasing and transportation of HazMat chemicals.

Basic Operating Principles

For more than 30 years, on-site generation of sodium hypochlorite has been a key process in water treatment for municipal and industrial applications. The design and operation of the ClorTec electrochlorination system is straightforward:

Using softened water, salt (NaCl) is dissolved in a tank to form a concentrated (30%) brine solution.

The brine solution is reduced in concentration with softened water to 3%, thereby cutting scaling of cathodes and stretching the intervals for acid cleaning from two to three weeks to as long as four to six months.


The diluted brine solution is pumped through an electrolytic cell that, using DC power from a rectifier, electrolyzes the diluted brine into a 0.8% solution of sodium hypochlorite.

The 0.8% hypochlorite solution flows into a storage tank. Hydrogen is safely vented to the atmosphere. A metering pump delivers the disinfectant to an ejection point in the specific application

water treatment system. Dose rate of the sodium hypochlorite is controlled with a chlorine residual analyzer within

water treatment plants. Severn Trent Services offers the MicroChem2 residual analyzer and controller.

The benefits of the on-site generation process over chlorine gas and bulk hypochlorite have been well documented and include:

Eliminate bulk storage of hazardous chemicals Reduce risk to plant personnel because of drastically eliminate hazardous material

(HazMat) storage and handling requirements; Remove transportation liabilities, risks and costs Reduce threat to public safety Process and risk safety management exemptions Lower disinfection byproducts Consistent solution concentration A simple, cost effective product

ClorTec Electrolytic Cell Operation & Design

The ClorTec electrolytic cell offers increased productivity through a proprietary coating. The cell consists of numerous titanium plates divided into arrays or cell packs consisting of an equal number of anodic and cathodic plates. The cell packs are configured electrically in parallel, while the overall cell is configured electrically in series.

The cell is fed DC power from a rectifier and electrolyzes the diluted brine into a sodium hypochlorite solution. In simple terms, chlorine is evolved at the anode surface, while hydrogen and hydroxide is evolved at the cathode surface. The secondary reaction of chlorine, sodium and the hydroxyl ion nets sodium hypochlorite (chlorine bleach) at a 0.8% solution. (As a reference, bottled household bleach is typically delivered at a 5% to 6% solution.) The process can be described as follows:

NaCl + H2O + 2e = NaOCl + H2 or

Salt + Water + Electrical Energy = Sodium Hypochlorite + Hydrogen


Hydrogen Formation

During the generation of sodium hypochlorite, hydrogen (H2) is formed as a primary product. The ClorTec electrolytic cells and the hypochlorite storage tank are designed to safely separate, contain and vent hydrogen from the cell directly into the atmosphere. The dilution and dispersal process is managed by the systems proprietary hydrogen dilution system, which incorporates a blower that provides ventilation of both the sodium hypochlorite storage tank and the cell assembly vent stack.

The ClorTec design philosophy addresses hydrogen through: Natural ventilation to prevent buildup of hydrogen Maintaining hydrogen concentrations at less than 25% of the 4% LEL or 1% by volume Four-tier safety interlocks on the generation plant

Split Flow Cell Design: Dividing the Water

A split flow cell design delivers 20% reduction in consumable operating cost!

ClorTec has significantly advanced on-site hypochlorite generation technology with the introduction of the patented (Patent No. US 6,805,787) split-flow design and process; as well as an enhanced proprietary electrode coating that provides greater efficiency.

As regulations governing chlorate/chlorite become a matter of concern, the ability to actively manage disinfection byproduct concentration to less than 2% of the total disinfection production will prove to be a tremendous benefit to users.

The patented ClorTec Split Flow arrangement provides 33% higher hypochlorite production with lower energy and salt usage.

In summary, the split flow cell, with enhanced electrode coating: Reduced salt consumption from 3.5 to 3 lbs per lb of chlorine equivalent (1.6 to 1.4 kg

per kg of chlorine equivalent) operational cost reduction of 14% in salt consumption Reduced energy consumption from 2.5 to 2.0 DC kWh per lb of chlorine equivalent (5.5

to 4.4 DC kWh per kg of chlorine equivalent) operational cost reduction of 20% in power

The operating cost reductions over the life of the equipment can amount to hundreds of thousands of dollars.


Applications

ClorTec on-site sodium hypochlorite generating systems are suitable for use in the following applications:

Potable Water Treatment Aquatics and Pools Odor Control/Corrosion Control Food & Beverage Processing Wastewater Treatment Cooling Towers, Inland Power Stations & Industry Irrigation Systems Agriculture/Farming


Industrial Power & Coastal Biofouling Control and Desalination Water Disinfection- SEACLOR

Generating a Sodium Hypochlorite Biofouling Control Solution from Seawater

The SEACLOR product line offers electrochlorination units ranging in size from small systems for oil and gas facilities to large custom engineered systems for coastal power generation and desalination stations.

On-site generation of sodium hypochlorite is an economical and safe method to produce this powerful biocide and disinfecting agent in coastal industry applications.

When injected into the cooling water circuits, on-site generated sodium hypochlorite solution provides efficient protection to the equipment against the growth of organic fouling (micro and macro). This occurs without the undesirable side effects of commercial hypochlorite (such as the build up of hard deposits by reaction of excess alkalinity with the substances dissolved in water) or the safety hazard connected with the transportation, storage and handling of chlorine gas.

Because this technology eliminates dependency upon outside suppliers and the heavy costs of purchased commercial products, it finds application in a broad spectrum of facilities requiring biofouling control of seawater systems.

SEACLOR for the on-site generation of hypochlorite from seawater has demonstrated reliable, economic and low maintenance operation in numerous installations throughout the world. SEACLOR systems range in capacity from 500 to 50,000 lb/day (20 to 900 kg/hr), per train.


In general the chemistry of electrochlorination is the same from brine or from seawater. However, some reactions that are more prevalent in seawater due to much higher concentrations of calcium, magnesium and other metals form hydroxides and carbonates resulting in suspended solids that are taken out of the electrolyzer by the higher flowrate seawater stream. Cathodic deposits, however, tend to deposit on the cathodic surfaces and therefore a periodic chemical cleaning procedure is recommended.

Pressurized seawater is delivered to the SEACLOR system where it is strained to 0.8mm to remove suspended solids. The seawater passes through a manual valve, a flow orifice (passive type) and a flow transmitter that provides local indication and low flow shut down. The seawater then passes through the electrolyzer cell and exits the cell as 0.05 -0.1% sodium hypochlorite solution and hydrogen gas.

The solution then passes through a tank or cyclone to separate the hydrogen. The hydrogen is diluted with air using a blower to a safe level. The hypochlorite is then injected at a fixed flow rate with variable concentration to provide proper biofouling control to seawater systems.


SEACLOR Product Offering

SEACLOR systems are the standard and preferred electrochlorination unit for biofouling control in power plants, cooling towers, liquefied natural gas (LNG) terminals and desalination facilities, as well as coastal installations using seawater for cooling or other process needs all over the world.

Power Plants

Thermal power plants powered by nuclear energy or fossil fuel located along a seacoast normally use seawater as a coolant in the steam condensers- typically a once-through cooling water system. The efficiency of power generation can be significantly increased but controlling the fouling of the steam condensers. Sodium hypochlorite is introduced to the seawater intake of the power station where it can prevent the fouling of the mechanical equipment such as the seawater circulating pumps, bar screen and drum screens.

Cooling Towers

Sodium hypochlorite is generally injected at the intake structure and the intake basin to control biological growth in open loop seawater cooling tower systems.

LNG Terminals

LNG must go through a liquefaction process prior to loading where chlorinated seawater is used in the refrigeration process. During unloading, the regassification process uses chlorinated seawater for the heating process. Sodium hypochlorite, generated onsite, is an excellent chlorine equivalent for this biofouling control application.

Desalination Plants

In a typical desalination application, sodium hypochlorite generated from seawater is injected in the intake structure and protects the equipment from organic fouling.


Applications

Seawater Treatment and Disinfection Markets Served: Power Generation Desalination Facilities Coastal Industry


Offshore & Marine Biofouling Control- SANILEC Generating a Sodium Hypochlorite Biofouling Control Solution from Seawater

SANILEC systems take full advantage of our knowledge and experience in the design of offshore skid-mounted units, with strenuous area classification requirements. These systems generate sodium hypochlorite from seawater using an extensively field-proven electrochemical process suited for biofouling control in water flood, cooling water and fire water loops.

On-site generation of sodium hypochlorite is an economical and safe method to produce this powerful biocide and disinfecting agent in offshore and marine applications. When injected into the cooling water circuits, on-site generated sodium hypochlorite solution provides efficient protection to the equipment against the growth of organic fouling (micro and macro). This occurs without the undesirable side effects of commercial hypochlorite (such as the build up of hard deposits by reaction of excess alkalinity with the substances dissolved in water) or the safety hazard connected with the transportation, storage and handling of chlorine gas. Because this technology eliminates dependency upon outside suppliers and the heavy costs of purchased commercial products, it finds application in a broad spectrum of offshore facilities requiring biofouling control of seawater systems.

SANILEC systems range in capacity from 2.8 to 47,620 lb/day (1.2 to 21,600 kg/day).


In general the chemistry of electrochlorination is the same from brine or from seawater. However, some reactions that are more prevalent in seawater due to much higher concentrations of calcium, magnesium and other metals form hydroxides and carbonates resulting in suspended solids that are taken out of the electrolyzer by the higher flowrate seawater stream. Cathodic deposits, however, tend to deposit on the cathodic surfaces and therefore a periodic chemical cleaning procedure is recommended.

Pressurized seawater is delivered to the SANILEC system where it is strained to 0.8mm to remove suspended solids. The seawater passes through a manual valve, a flow orifice (passive type) and a flow transmitter that provides local indication and low flow shut down. The seawater then passes through the electrolyzer cell and exits the cell as 0.05 -0.1% sodium hypochlorite solution and hydrogen gas.

The solution then passes through a tank or cyclone to separate the hydrogen. The hydrogen is diluted with air using a blower to a safe level. The hypochlorite is then injected at a fixed flow rate with variable concentration to provide proper biofouling control to seawater systems.


SANILEC Product Offering

Fire Water Systems

Biofouling, when mussels and algae restrict the intake to firewater and jockey pumps, must be considered by offshore facilities using seawater for their firewater systems so that these restrictions in flow do not compromise the performance of the vital safety equipment. Severn Trent De Nora offers skid-mounted systems that provide a shock dose of sodium hypochlorite at set intervals to the firewater pump caisson and a continuous does of sodium hypochlorite to the jockey pump caisson. This shock dose keeps the firewater pump caissons clean and free from macrofouling while also ensuring the firewater main loop is algae and slim free.

Cooling Water

In applications where seawater is used for cooling, biofouling or the build up of marine growth reduces the system efficiency, increases the frequency of system maintenance and decreases the life of process equipment. Severn Trent De Nora offers a skid-mounted system that receives pressurized seawater and produces sodium hypochlorite at a concentration of 40 to 1660 ppm that can then be injected, at any point, within the vessel to control marine growth. The product can be varied 0 to 100 percent to maintain the desired residual.

Water Flood, Offshore Oil and Gas Production Platforms

In a typical water flood package sodium hypochlorite is used to restrict marine growth in the seachest, condenser, heat exchanger and downhole. Reduced marine growth in the condenser and heat exchanger can increase efficiency and significantly reduce the requirement for maintenance. Sodium hypochlorite injected with the seawater in downhole applications can prevent slime and marine growth in the oil bearing substrate.

LNG Terminals

LNG must go through a liquefaction process prior to loading where chlorinated seawater is used in the refrigeration process. During unloading, the regassification process uses chlorinated seawater for the heating process. Sodium hypochlorite, generated onsite, is an excellent chlorine equivalent for this biofouling control application.

Electrolytic Cell

Severn Trent De Nora offers two different mechanical configurations of electrolytic cells for seawater applications. The best cell configuration is selected for the application. When selecting a cell configuration application, seawater characteristics, cost, size, weight, pressure, maintenance and historic preference are considered.


Cell Types: SANILEC Tube Cell SANILEC Plate Cell

Applications

Seawater Treatment and Disinfection Markets Served: Offshore Oil & Gas Facilities Marine, General Navies Worldwide


Marine Sewage Treatment Systems - OMNIPURE OMNIPURE Series 55 and MARINER OMNIPURE Series 55 systems are the only marine sewage systems that oxidize sewage in the electrochemical cell as well as generate NaOCl for the disinfection of the marine waste streams.

OMNIPURE Series 55 Overview

OMNIPURE Series 55 units are suitable for installation in marine and offshore applications requiring marine sewage treatment. OMNIPURE Series 55 marine sewage treatment units provide effective electrolytic treatment of both black and grey water through a patented and certified process.

OMNIPURE Series 55 units meet personnel treatment capacities ranging from one to more than six hundred people. The systems range in capacity from 781 to 17,280 gals/day as individual units. Multiple units can be used in parallel for increases in capacity beyond individual unit capacity or to provide redundancy.

Certifications International Maritime Organization Resolution MEPC.2 (VI) United States Coast Guard Type Test Certified 33 CFR 59 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 Applicable sections of Article 500 of the National Electric Code (NEC)

Bureau Veritas (BV) Type Certification to Directive (MED) 96/98/EC



The processing function of every OMNIPURE Series 55 unit is the same regardless of size. The automated process for generating an oxidant on-demand is simple and proven effective. Operation is semi-continuous, with continuous collection of sewage and cycle processing of the accumulated black and gray water. Replace with: Stage 1: sewage is macerated while Biological Oxygen Demand (BOD), Total Organic Carbon (TOC) and fecal coliform are significantly reduced as the wastewater stream flows through the patented electrolytic book cell. Stage 2: is composed of an electrocoagulation (EC) reactor, a gas-liquid separator (Degassing Column), and a solids-liquid separation tank (Settler). The EC reactor electrolytically enhances the sewage stream with iron particles that serve as nucleation sites forming a flocculation with the organic matter that readily drops out of solution. A defoaming agent is injected into the waste stream between the bookcell and the EC reactor to enhance gas-liquid separation of the stream exiting the EC reactor. Gas generated in both the book and electrocoagulation cells is removed in a degassing column mounted on top of the Primary Settler. A proprietary design encourages disengagement of the entrained process gases from the stream which percolates gently into the Settler. An internal standpipe provides significant reaction time for solids to fall to the bottom of the settler. Liquid with minimal solids exits near the top of the Settler tank. Stage 3: is a second settling (or clarification/concentration) step. The process stream enters Severn Trent De Noras unique clarifier tank where velocity is kept at a minimum to further encourage settling of any remaining flocculants to the bottom of the solids Concentrator. This results in a clear effluent from the top of the Concentrator that meets effluent composition requirements for MEPC 159(55). The solids from the Settler and Concentrator can be handled by the operator as a concentrated waste stream or further processed using Severn Trent De Noras patent-pending solids handling unit.

System Benefits - Easy to install, operate and service - Lightweight package - Minimal maintenance - No additional tanks or filtration equipment required - Operates on-demand, instantaneous on-off operation - Operator-safe solids handling system - Small equipment footprint


Applications

Marine Waste Water Treatment and Disinfection Markets Served: Offshore Oil & Gas Facilities

FPSOs and FSOs Rigs and Platforms

Marine, General Work Boats Tugs Yachts

Cruise Vessel and Passenger Ferry Industry Navies Worldwide


Marine Sewage Treatment Systems - MARINER OMNIPURE Series M55

Overview

The MARINER OMNIPURE series of marine sanitation devices offer a fresh approach to sewage treatment in the workboat and vessel markets. With treatment capacities of up to 75 persons (black water) and up to 25 persons (black and gray), the largest unit treats 2,160 gallons (8,176 Liters) of human wastewater per day. The USCG Certified Type II MARINER OMNIPURE units incorporate the same electrolytic treatment benefits of other OMNIPURE units, but with the added advantages of less maintenance and a small, compact size to fit vessels in the workboat and vessel markets.

Certifications International Maritime Organization Resolution MEPC.159(55) United States Coast Guard (USCG) Type Test Certified 33 CFR 59 China Classification Society No. NYT02610001 Russian Maritime Register of Shipping No. 97.143.009 Bureau Veritas (BV) Type Certification to Directive MEPC.159(55)


The MARINER OMNIPURE Series 55 provides effective electrolytic treatment of both black and gray water through a patented and certified treatment process. Like other OMNIPURE products, this unit produces a sodium hypochlorite disinfection solution from seawater in the presence of sewage to effectively treat all sewage.

Electrolytic treatment of marine sewage eliminates chemical storage issues, dosing equipment and costs associated with the use of hazardous chemicals since the disinfection solution is produced onsite while the unit is in operation. A closed-loop cell-cleaning feature allows maintenance to be performed on the cell without opening the cell and cleaning it by hand.


Benefits - Accommodates varying crew complements - Automatic operation - Easy to install, start up, operate and service - Eliminates storage, handling and purchasing of hazardous chemicals - No complicated or unsanitary pre-treatment of raw inlet sewage stream - No raw sewage screens, vibrators or filters to manage - Small footprint and weight - Silent operation - Unique bulkhead mounting design

Applications

The compact MARINER OMNIPURE Series 55 marine sewage treatment systems are suitable for use in the workboat, crewboat and vessel markets.


Marine Ballast Water Treatment Systems - BALPURE Ballast Water Concerns

The introduction of aquatic nuisance species into coastal marine and estuarine waters comes from a variety of sources. However, because of the large volumes and frequency of use, ballast water is currently the most frequently cited method for the worldwide transference of non-indigenous organisms. The U.S. federal and state governments, United States Coast Guard (USCG) and international agencies such as the International Maritime Organization (IMO) are combating the problem by mandating ballast water exchange in the open ocean or utilizing ballast water treatment systems.

BALPURE Ballast Water Treatment System

The patented BALPURE ballast water treatment system generates biocides, meters and analyzes the residual level of both biocides and neutralizing agents and logs the performance of the overall ballast water treatment system. With international, national, state and local environmental agencies worldwide taking action to regulate the discharge of ballast water arriving in ships coming from overseas ports, the BALPURE system has proven to be an effective, economical and high-capacity device to treat ballast water with no adverse effects on the environment. Third party testing of the BALPURE system has confirmed effluent quality that meets proposed International Maritime Organization ballast water standards.

Product Offering

Standard BALPURE units are available to treat flow rates ranging from 500 to 20,000+ cubic meters per hour.

Nominal Power (AC kW) Ballast Only* Footprint (m

2)** Model

Ballast Water Flow Rate Maximum

(m3/h)

1% Slip Stream Seawater Feed to

BALPURE (m3/h) 6 ppm System Filter

Pressure Drop (Nominal Bar)

Pressure Drop (MAX Bar)

Sodium Bisulfite (l/h) Deballast only***

BP-500 500 6 20 5.7 1.5


Benefits Proven technology Easy to install Small footprint Onsite generation of biocide Analyzer/data logger is used to monitor residual Low capital and operating costs Low power consumption Non-corrosive Suitable for hazardous cargo area installations Low maintenance- approximately 4 hours per month Worldwide distribution and service network Full service engineering, manufacturing service and parts support

Applications Ballast Water Treatment

Tugs and Barges Tankers Bulk Carriers Cruise Ships Car Carriers Naval Vessels

Severn Trent De Nora 1110 Industrial Blvd. Sugar Land, TX 77478 USATel +1 281 240 6770 Fax +1 281 240 6762 [email protected]

500.0200.5 OCT/12

Severn Trent Services 1110 Industrial Blvd. Sugar Land, TX 77478 USATel +1 281 240 6770 Fax +1 281 240 6762 [email protected]

Main IndexProduct Group Breakdown

500-02006

Documents

basic operating principles

global experience

split flow cell design

sanilec product offering

seaclor product offering

engineering design capability

sales capability

severn trent services