Overview of HydroProtector
Leaks and spillages of oil and fuel are washed down drains every time it rains and, unless intercepted, find their way into water courses polluting reservoirs and rivers. This can have a disastrous eﬀect on plants and wildlife. A substantial amount of oil pollution is collected in sites such as garage forecourts, large car parks and fuel storage depots and this must be intercepted to avoid the risk of prosecution.
The Environment Agency has published Pollution Prevention Guidelines ‘Use and Design of Oil Separators in Surface Water Drainage Systems: PPG3’. These set out the standards with which separators must comply and assist in deciding on the need for a separator at a site and the size and type that is appropriate. These Pollution Prevention Guidelines PPG3 require separators to be tested in accordance with the standard test procedure based on the European Standard BSEN858-1:2002.
The HydroProtector is the most widely used separator where it is acceptable to treat the first flush and normal flows up tov6.5mm/hr rainfall. This covers approximately 90% of all rainfall events in Australia. Any excess rainfall is by-passed without treatment.
These are used when it is considered an acceptable risk not to provide full treatment for high _lows, for example, where the risk of a large spillage and heavy rainfall occurring at the same time is small. They are especially suitable for situations where the main requirement is to trap spillages.
The HydroProtector is the first by-pass separator certified to BS EN 858-1.
- The liquid passes in through the inlet dip pipe, or the flame trap. This prevents the allowance of flow of flammable vapours to enter through the drainage system.
- The rainwater from the connected area is fed into the silt chamber. This section of the tank is designed to retain all forms of sedimentation. Upon entering the tank, the water settles and as this occurs, the sedimentation settles to the bottom of the silt chamber as the water rises.
- As the water level rises the water reaches an appropriate height to flow into the next section of the HydroProtector. In the dual chamber system, the water flows into the inlet pipe, past the automatic closure device in and into the baffle. The Inlet pipe into the baffle has been designed to prevent the flow of oils into the coalesce unit. This part of the system is only used in high oil risk and fuel risk situations.
- The water then flows through the baffle into the coalesce unit. This filtration system provides a process to remove smaller contaminants in the stormwater run off to reduce the light liquid output to 5mg/L or less.
- The cleaned water then passes through the flow director, up into the outlet flow pipe and out into the water systems surrounding the HydroProtector.
Features of HydroProtector
- Full Retention and all liquid is treated with no bypass
- Coalesce stormwater treatment filter for separation of smaller droplets of contaminants
- Coalesce Guiderail systems
- Automatic closure device to prevent contaminants from discharging into waterways
- Gravity operated
- Ease of Maintenance
- Option of single, dual or triple chamber systems
- Underground Installation
- Automatic Alarm/monitoring system
Applications of HydroProtector
The HydroProtector is suitable for many applications. Its high filtration rate and large array of configurations and sizes allows for this system to be suitable in almost all situations. Its ability to also be combined with other filtration systems, such as the Hydroprotector, as a combined system ensure that this system can be used in a wide range of applications. The most common applications are listed below:
- Power Stations
- Parking areas and shopping centres
- Substations & Switchyards
- Mining & Heavy Vehicle
- Waste Transfer Depots
- Re-fuelling Areas
- Service Stations
- Asphalt Plants
- The Filter – Robust stainless steel coalesce unit with long life foam insertion and lifting handle. These strong stainless-steel units incorporate robust high volume reticulated foam inserts. The inserts efficiently coalesce the inner globules of hydrocarbons for gravity separation and due to their large volume, last for long periods before requiring cleaning. Cleaning is then a simple operation using normal pressure water.
- PROTEC COALESCER UNIT GUIDE RAIL SYSTEM – To facilitate easy insertion of PROTEC coalesce units, the guide rail system manufactured in stainless steel can be incorporated all types of HydoProtector. Brackets fixed to the top and bottom of the coalesce unit simply engage the stainless-steel guide rail fixed to the top of the stub access shaft. The coalesce unit is then lowered in the normal way, being guided at the correct angle into the conical base which finally locates the coalesce unit into its final position. Extension guide rails can be incorporated into extension shafts to suit (preferably when ordered with the separator).
- PROTEC COALESCER UNIT LIFTING, LOCATING AND LOCKING SYSTEM – The lifting, locating and locking system is manufactured in stainless steel and replaces the standard coalescer unit handle. It enables easier removal of heavily contaminated coalescer units for maintenance, especially when using the tripod and hoist designed for this purpose. The locating/locking handle ensures the coalescer unit is seated and locked in its correct position.
Installation of HydroProtector
The installation of the Storm protector follows a simple process. A complete installation hand book is supplied to ensure the installation goes smoothly and to plan. The guide provides advice for lifting, OHS measures, handling techniques and other important requirements. Installation is typically:
- Excavate an area for positioning with suitable easy placing of the tank and filling as well as for consolidating concrete for backfilling.
- Lifting and handling of the system must use appropriate processes. More details can be found in the Manual. All lifting apparatus (cables, straps, chains etc.) must be provided by a contractor.
- Installation can be conducted with or without appropriately designed feet for the product, each with their own following installation instruction details found in the Installation Manual.
- The system can be secured in several ways including Pea gravel and concrete surrounds, stabilised sand surroundings, concrete base and concrete surround, pea gravel backfill, mechanical anchoring etc. All have been clearly outlined in the installation manual provide by Protector.
- Allow for protection of inlets/discharge points/vents to be supervised by contractor. Connect each suitably designed fitting with the desired location for completion.
PROTEC WATER products are Quality Assured under BS EN ISO 9001:2000 – manufactured in a modern manufacturing plant ensuring the highest standard of quality control. Protector separators are filament wound by an advanced, patented, chop hoop filament winding process. This process produces not only circumferential strength as found in helical wound tanks, but also high longitudinal strength. The interlaminar shear strength permits tanks to be cut for manholes and pipework without undue loss in strength.
The dished ends are incorporated during the filament winding process, enabling tanks to be moulded and completed as virtually ‘one piece’ units. The manufacturing process is carefully monitored with a digital read out system. Chopping glass, winding glass, the resin-rich inner layer and main laminate resins are kept within specification parameters, thus minimising human error. Quality control procedures require each tank to be carefully inspected and tested.
All of the Protector range have been individually engineered to handle the toughest environmental situations and proven in the toughest environments such as high-water tables and volcanic soils. Problems in these areas have been solved with the installation of the StormProtector.
The Packaged StormProtectors are engineered to the following Standards:BS4994 – 1987, AS/NZS 1546.1:1998. Hydraulic and civil engineering can also be provided to your requirements.