EPS Ireland are the largest Irish owned Company involved in the Design manufacture, Installation & Commissioning of Water & Wastewater Treatment Solutions, Pumping Solutions & ongoing Operation & Maintenance of same

EPS Ireland Ltd.
Mallow Bus. & Tech. Park
Mallow
Co. Cork
Tel: 022 31200
Fax: 022 31250

Separators
By-pass and Full Retention separators Class 1 & 2

INTRODUCTION
Pollution prevention is a critical part of any sustainable drainage system and verified fuel/oil separators are an essential requirement in the prevention of watercourse pollution by containing oil and other hydrocarbons that have entered a drainage system.
Separator Standards & Verification
BS EN858-1-2002 is the European Standard for the design, performance, testing,marking and quality control of separators within the EU. All separators must comply with this standard. The most recent list of verified separators for the Irish and UK markets is available at: www.environment-agency.gov.uk.
SEPARATOR CLASSES & TYPES
There are two types of separator referred to in the European Standard, both having two performance classes:
• By-pass - Class 1
- Class 2
• Full Retention - Class 1
- Class 2
Class 1 Models
Generally, incorporating a coalescing filter and are designed to achieve a concentration of less than 5mg/l of oil under standard test conditions. Class 1 must be specified when discharging to surface water drainage systems, water courses or soakaways. Of particular relevance here, is the removal of small oil droplets emanating from car parks, etc.
Class 2 Models
Class 2 separators are designed to achieve an oil concentration of less than 100mg/l under standard test conditions. They are generally suitable for treating discharges where a lower quality is required, such as direct discharge to a foul sewer system.
By-Pass Separators
By-pass separators are designed to treat fully all rainfall events up to 5mm/hr or
99% of all rainfall events. Any rainfall events above this leads to a by-pass of the system of the surplus flows.
Full Retention Separators
Full retention separators are designed to treat the full flow of liquid through the
drainage system. This is accepted as a rainfall intensity of up to 50mm/hr.
Full retention separators are particularly relevant for high risk applications,
such as petrol filling stations and heavily contaminated industrial areas.
Forecourt Separators
Forecourt Separators are full retention separators and are designed to contain
the maximum spillage that is likely to occur, such as the entire contents of
one compartment of an oil/fuel tanker. This storage capacity volume is set at 7,600l. Forecourt separators are an essential infrastructural requirement for all forecourts so as to ensure compliance with both health
and safety, and environmental legislation.
Washdown Separators
Washdown separators are generally used in areas such as car wash/truck wash and various cleaning systems that discharge directly into a municipal treatment facility. Discharges from washdown separators must not be allowed to enter the surface water drainage system or a fuel/oil separator.
The likely presence of emulsifiers such as detergents will disperse oils and will reduce the separation efficiency of all separators.
Silt Traps & Sedementation Units
The use of silt traps are of particular relevance on sites such as car/truck wash, etc where separators on-site may not have sufficient silt capacity.
Operating Capacities
The minimum operating capacity of any separator, regardless of the area
drained, should not be less than 1,000l. The exception to this requirement
is forecourt separators which must have a minimum capacity of 7,600l.
Separators must also provide adequate silt storage capacity, unless preceeded
by a suitable silt trap.

CNSB Bypass Separator range

Pollution prevention is a critical part of sustainable drainage systems and verified oil separators are designed to prevent watercourse pollution by containing oil and other hydrocarbons that have entered a drainage system.
EPS Bison’s new range of CNSB Bypass Separators are designed and tested in accordance with BS EN858-1-2 and are proven to effectively separate oil and water under test to less than 1 parts per million and, therefore, protect the environment and public safety. The new CNSB range fulfils all current regulatory requirements for
oil separators both in Ireland and the UK.
Features & benefits
• Innovative design
• Competitively priced
• Small & easy to handle
• Uniquely designed to minimise size of unit
• Major installation cost savings
• Easy to service & maintain
• Fully compliant to the UK’s Environment
Agency’s new PPG3 guidelines
• An Environment Agency verified manufacturer
• Fully tested & verified with a range from CNSB 1.5 to CNSB 1000 (class 1 & class 2)
• Exceeds industry standards
• Full BSI certification
• Silt & non-silt options
• Prevents pollution & reduces risk
Application areas
• Carparks
• Roadways & major trunk roads
• Light industrial & goods yards
• Discharge to a sensitive environment
Alarm systems
Under the new PPG3 guidelines all separators must be provided with an alarm system. This automatic warning
device indicates that the separator is in need of immediate maintenance for it to continue to work effectively.
A full technical and service package is available which can include product specification, separator & alarm installation, commissioning, oil & silt removal, service and maintenance.

Full-Retention Separators

Pollution prevention is a critical part of sustainable drainage systems and verified oil separators are designed to prevent watercourse pollution by containing oil and other hydrocarbons that have entered a drainage system.
EPS Bison’s new range of Full-Retention Separators are designed and tested in accordance with BS EN858-1-2 and are proven to effectively separate oil and water under test to less than 1 parts per million and, therefore, protect the environment and public safety. The new CNS range fulfils all current regulatory requirements for oil separators both in Ireland and the UK.
Features & benefits
• Class 1 & class 2 Design
• Innovative design
• Competitively priced
• Major installation cost savings
• Easy to service & maintain
• Fully compliant to the UK’s Environment Agency’s new PPG3 guidelines
• Produced by an Environment Agency verified manufacturer
• Fully tested & verified with a range from CNS 1.5 to CNS 1000 (class 1 & class 2)
• Exceeds industry standards
• Full BSI certification
• Silt & non-silt options
• Prevents pollution & reduces risk
Application areas
Full-Retention Separators are used in high risk areas such as:
• Fuel stations/depots
• Garages
• Scrap yards
• Heavily contaminated industrial area
Alarm systems
Under the new PPG3 guidelines all separators must be provided with an alarm system. This automatic warning device indicates that the separator is in need of immediate maintenance for it to continue to work effectively. A full technical and service package is available which can include product specification, separator & alarm installation, commissioning, oil & silt removal, service and maintenance.

Silt and Washdown Separators

Washdown separators are generally used in areas such as car wash/truck wash and various cleaning systems that discharge directly into a municipal treatment facility. Discharges from washdown separators must not be allowed to enter the surface water drainage system or a fuel/oil separator. The likely presence of emulsifiers such as detergents will disperse oils and will reduce the separation efficiency of all separators.
Features & benefits
• Wide range of products available from EPS Bison with heavy duty access hatches for easy sediment removal
by hand or tanker.
• Light and simple to install
• Silt storage included
• Extension shafts available for deeper inverts
• Access and maintenance from ground level
• Venting provided
• Special 530mm trap available for use with automatic systems under chassis washing. This model is generally installed between the chassis wash arms. For particularly large capacities, larger sedimentation
tanks available.
Application areas
• Car parks
• Roadways & major trunk roads
• Light industrial & goods yards
• Discharge to a sensitive environment
Alarm systems
Under the new PPG3 guidelines all separators must be provided with an alarm system. This automatic warning device indicates that the separator is in need of immediate maintenance for it to continue to work effectively. A full technical and service package is available which can include product specification, separator & alarm
installation, commissioning, oil & silt removal, service and maintenance.

Forecourt Separators

Forecourt Separators are specifically designed for use on petrol forecourt and other similar commercial fuelling areas. Their design is otherwise similar to the standard full retention range of separators.
Features & benefits
• Minimum storage capacity of 7600 litres
• Light and simple to install
• Silt storage included
• Class 1 and Class 2 options
• Extension shafts available for deeper inverts
• Access and maintenance from ground level
• Venting provided
• Oil storage included
• Coalescer available (Class 1 unit only)
• Automatic closure device
• Oil alarm system available Installation
Forecourt separators to be installed on a suitable concrete base and backfilled with suitable concrete surround. Granular surround models also available. Suitable for installation in a trafficked area provided that a suitable cover slab is designed so as to ensure the structural integrity of the tank. All separators need to be installed and vented as per the relevant health and safety and local authority requirements.
Alarm systems
Under the new PPG3 guidelines all separators must be provided with an alarm system. This automatic warning device indicates that the separator is in need of immediate maintenance for it to continue to work effectively. A full technical and service package is available which can include product specification, separator & alarm
installation, commissioning, oil & silt removal, service and maintenance.

SEPARATORS
Sizing Formula
In line with PPG3 and recommended testing procedures the EPS Bison separators shown here have been allocated a “Nominal Size”. Use the tables to make your selection. Nominal size is expressed as CNS for full
retention separators and CNSB for by-pass separators.
Normal Method
• Multiply the square meterage of the area drained by 0.018 for full retention separators, or by 0.0018 for by pass
separators.
• Your resulting CNS/CNSB figure should equate to the maximum treated flow rate in litres per second under test conditions.
• To determine silt capacity (either integral or separate upstream device), multiply your CNS/CNSB by 100.
• Minimum oil storage should not be less than CNSx10 for full retention with automatic closure devices, or CNSx15 for those without, or CNSBx15 for by-pass separators.
Pipework and Access Shafts
• Pipework can be sized to suit each individual site.
• Virtually any size inlet/outlet pipework and orientation can be manufactured.
• Standard sizes are 100 or 150mm uPVC with larger sizes fabricated in GRP.
• All Separators must be vented and a standard 100mm diameter socket is provided in the access shaft. Extended shafts are available to cover any depth of installation - check tables for standard supply.
Maintenance
• EPS Bison provide industry leading Service Contracts for all separators. These are modelled on the requirements detailed in the Environmental Alliancé Pollution Prevention Guideline document PPG3 and the European Standard BS EN 858-2.
• The Service Contract is designed to protect assets and eliminate risk, whilst adopting a regime where emptying is only carried out when needed.
Accessories
Automatic Closure Devices
• Compulsory for all PPG3 compliant full retention separators. The ACD prevents accumulated pollutants flowing through the unit when maximum storage level is reached.
• ACD’s comprise a floating disc or ball and plate in a cylindrical shaft over the outlet duct which will be balanced to suit the specific gravity of pollutants.
• In major spillages, or when the maximum oil retention capacity is retained, the ACD is forced down over the aperture to prevent discharge
Coalescing Filters
• This filter (a cylindrical cartridge of open cell material - with handle for easy removal and cleaning) separates residual oil in already separated Oil/Water and ensures discharge quality of less then 5mg/litre of oil in water under test conditions.
• Simple to maintain and replace.
Oil Level Alarms
• A requirement on all PPG3 compliant separators to provide early warning of the need to empty a unit and avoid potentially costly accidental discharge.
• Comprises an electronic or radio linked control with probe placed in the separation chamber. Audible and visual alarms signal when the unit requires emptying.
• Solar powered models with radio links available to avoid hard wiring - gsm monitoring also available.
• Alarms also available for monitoring silt levels and warning of flow back-up in the system.

CAPABILITY AND QUALITY
EPS Bison is presently one of the leading Irish suppliers of GRP tanks and products.
Conder products are a European leader in GRP tank design, manufacture, testing and supply.
With over 35 years experience each, together our partnership offers a proven and extensive capability to provide underground storage solutions for all types of commercial, industrial and residential developments.
Our partnership offers:
• Europe’s largest automated production facilities
• Turnkey solution from first enquiry through to installation, comissioning and planned servicing
• Innovative design and build experience to strict quality standards - certified to BS EN ISO 9001:2000 and BS EN ISO 14001
• Design & Build - to meet even the most demanding project requirements
• Selected products also manufactured to BS 4994, Cats 1,2 & 3, EN976 and EN858
• Industry leading state-of-the-art mandrels to create vessels with up to 275,000 litres capacity and from 1m-4m in diameter
• Wide range of industry approvals
• 100s of successful installations
• In-depth technical service and specification support for every project
• Full compliance with the latest environmental and building regulations
• In-house materials testing capability and QA laboratory
• All products supplied with detailed O&M and installation manuals
• All services under one roof - single point of contact for customers
• Full 12 month warranty on all products subject to installation in accordance with our guidelines

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